Journal articles: 'Microhylid frog species'

1

Raaymakers, Constantijn, Benoit Stijlemans, Charlotte Martin, Shabnam Zaman, Steven Ballet, An Martel, Frank Pasmans, and Kim Roelants. "A New Family of Diverse Skin Peptides from the Microhylid Frog Genus Phrynomantis." Molecules 25, no. 4 (February 18, 2020): 912. http://dx.doi.org/10.3390/molecules25040912.

Full text

Abstract:

A wide range of frogs produce skin poisons composed of bioactive peptides for defence against pathogens, parasites and predators. While several frog families have been thoroughly screened for skin-secreted peptides, others, like the Microhylidae, have remained mostly unexplored. Previous studies of microhylids found no evidence of peptide secretion, suggesting that this defence adaptation was evolutionarily lost. We conducted transcriptome analyses of the skins of Phrynomantis bifasciatus and Phrynomantis microps, two African microhylid species long suspected to be poisonous. Our analyses reveal 17 evolutionary related transcripts that diversified from to those of cytolytic peptides found in other frog families. The 19 peptides predicted to be processed from these transcripts, named phrynomantins, show a striking structural diversity that is distinct from any previously identified frog skin peptide. Functional analyses of five phrynomantins confirm the loss of a cytolytic function and the absence of insecticidal or proinflammatory activity, suggesting that they represent an evolutionary transition to a new, yet unknown function. Our study shows that peptides have been retained in the defence poison of at least one microhylid lineage and encourages research on similarly understudied taxa to further elucidate the diversity and evolution of skin defence molecules.

APA, Harvard, Vancouver, ISO, and other styles

2

VASSILIEVA, ANNA B., and VITALY L. TROUNOV. "Tadpole of Microhyla picta Shenkel (Anura: Microhylidae), an endemic narrow-mouthed frog from Vietnam." Zootaxa 4444, no. 1 (July 6, 2018): 98. http://dx.doi.org/10.11646/zootaxa.4444.1.8.

Full text

Abstract:

The Painted Rice Frog, Microhyla picta Schenkel, is one of the least studied species among narrow-mouthed frogs of the genus Microhyla. To date it is known only from Vietnam, where it is distributed mostly in eastern coastal areas in central and southern parts of the country (Nguyen et al. 2009; Nguyen & Hoang 2013). The species was also found in Con Dao archipelago (Poyarkov & Vassilieva 2011). No data are available on the ecology and reproductive biology of the species, and its larval morphology is also not described. Microhyla frogs are widespread and numerous in terrestrial ecosystems and microhylid tadpoles are known to play an important role in the aquatic communities of temporary waterbodies of monsoon ecosystems in Southeast Asia (Heyer 1973; Vassilieva et al. 2017). The ability to identify microhylid tadpoles in the field is pertinent for biodiversity and ecological studies. We provide a description of larvae of M. picta from various areas in southern Vietnam.

APA, Harvard, Vancouver, ISO, and other styles

3

ONN, CHAN KIN, L. LEE GRISMER, NORHAYATI AHMAD, and DAICUS BELABUT. "A new species of Gastrophrynoides (Anura: Microhylidae): an addition to a previously monotypic genus and a new genus for Peninsular Malaysia." Zootaxa 2124, no. 1 (June 3, 2009): 63–68. http://dx.doi.org/10.11646/zootaxa.2124.1.5.

Full text

Abstract:

A new species of microhylid frog of the genus Gastrophrynoides is described from Gunung Besar Hantu, in the state of Negeri Sembilan, adding a new generic record to the family Microhylidae of Peninsular Malaysia and an additional species to the previously monotypic genus Gastrophrynoides. This new species can be distinguished from its only congener, G. borneensis by having an immaculate, grayish brown dorsum (instead of a spotted one); a longer snout (2.6–3.0 vs. 2.0–2.5 times diameter of eye); and a single, large, oval outer metacarpal tubercle beneath the hand (instead of smaller, paired, rectangular outer metacarpal tubercles in G. borneensis).

APA, Harvard, Vancouver, ISO, and other styles

4

Das, Abhijit, Sonali Garg, Amir Hamidy, Eric N. Smith, and S. D. Biju. "A new species of Micryletta frog (Microhylidae) from Northeast India." PeerJ 7 (June 11, 2019): e7012. http://dx.doi.org/10.7717/peerj.7012.

Full text

Abstract:

We describe a new species of frog in the microhylid genus Micryletta Dubois, 1987 from Northeast India based on molecular and morphological evidence. The new species, formally described as Micryletta aishani sp. nov., is phenotypically distinct from other congeners by a suite of morphological characters such as brown to reddish-brown dorsum; dorsal skin shagreened with minute spinules; snout shape nearly truncate in dorsal and ventral view; a prominent dark streak extending from tip of the snout up to the lower abdomen; ash-grey mottling along the margins of upper and lower lip extending up to the flanks, limb margins and dorsal surfaces of hand and foot; tibiotarsal articulation reaching up to the level of armpits; absence of outer metatarsal tubercles; and absence of webbing between toes. Phylogenetic relationships within the genus are inferred based on mitochondrial data and the new taxon is found to differ from all the recognised Micryletta species by 3.5–5.9% divergence in the mitochondrial 16S rRNA. The new species was found in the states of Assam, Manipur, and Tripura, from low to moderate elevation (30–800 m asl) regions lying south of River Brahmaputra and encompassing the Indo-Burma Biodiversity Hotspot. The discovery validates the presence of genus Micryletta in Northeast India based on genetic evidence, consequently confirming the extension of its geographical range, westwards from Southeast Asia up to Northeast India. Further, for nomenclatural stability of two previously known species, Microhyla inornata (= Micryletta inornata) and Microhyla steinegeri (= Micryletta steinegeri), lectotypes are designated along with detailed descriptions.

APA, Harvard, Vancouver, ISO, and other styles

5

Günther, Rainer, and Stephen Richards. "Three new species of the microhylid frog genus Choerophryne (Amphibia, Anura, Microhylidae) from Papua New Guinea." Zoosystematics and Evolution 93, no. 2 (May 5, 2017): 265–79. http://dx.doi.org/10.3897/zse.93.11576.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Glaw, Frank, and Miguel Vences. "Plethodontohyla guentheri, a new montane microhylid frog species from northeastern Madagascar." Mitteilungen aus dem Museum für Naturkunde in Berlin – Zoologische Reihe 83, S1 (April 2007): 33–39. http://dx.doi.org/10.1002/mmnz.200600023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

ZWEIFEL, RICHARD G. "A New Species of Microhylid Frog, Genus Oreophryne, from Papua New Guinea." American Museum Novitates 3419 (October 2003): 1–8. http://dx.doi.org/10.1206/0003-0082(2003)419<0001:ansomf>2.0.co;2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

DAS, INDRANEIL, and ALEXANDER HAAS. "New species of Microhyla from Sarawak: Old World’s smallest frogs crawl out of miniature pitcher plants on Borneo (Amphibia: Anura: Microhylidae)." Zootaxa 2571, no. 1 (August 19, 2010): 37. http://dx.doi.org/10.11646/zootaxa.2571.1.2.

Full text

Abstract:

A new diminutive species of microhylid frog (genus Microhyla) is described from the Matang Range, Sarawak, Malaysian Borneo. The new species is an obligate of the pitcher plant, Nepenthes ampullaria, breeding in senescent or mature pitchers, and is Old World’s smallest frog and one of the world's tiniest: adult males range between SVL 10.6– 12.8 mm (n = 8). The new species is diagnosable from congeners in showing dorsum with low tubercles that are relatively more distinct on flanks; a weak, broken, mid-vertebral ridge, starting from forehead and continuing along body; no dermal fold across forehead; tympanic membrane and tympanic annulus absent; Finger I reduced to a nub proximal to Finger II in males; toe tips weakly dilated; phalanges with longitudinal grooves, forming two scale-like structures; webbing on toe IV basal; toes with narrow dermal fringes; inner and outer metatarsal tubercles present; and dorsum brown with an hour-glass shaped mark on scapular region. Miniaturization and reduced webbing may be the result of navigation on the slippery zone of pitchers, situated below the peristome.

APA, Harvard, Vancouver, ISO, and other styles

9

Van Sluys, M., G. M. Schittini, R. V. Marra, A. R. M. Azevedo, J. J. Vicente, and D. Vrcibradic. "Body size, diet and endoparasites of the microhylid frog Chiasmocleis capixaba in an Atlantic Forest area of southern Bahia state, Brazil." Brazilian Journal of Biology 66, no. 1a (February 2006): 107–73. http://dx.doi.org/10.1590/s1519-69842006000100021.

Full text

Abstract:

We analyzed the diet composition, endoparasites and sexual size dimorphism of the microhylid frog Chiasmocleis capixaba (Microhylidae) from a "mussununga" habitat in the municipality of Nova Viçosa, southern Bahia state, Brazil. All the 119 specimens analyzed were collected in a single night of heavy rainfall. Females (mean snout-vent length = 15.7 + 3.0 mm) were significantly larger than males (mean snout-vent length = 13.2 + 2.1 mm), and specimens of both sexes were smaller than those of a conspecific population previously reported in Aracruz, state of Espírito Santo state. The diet of C. capixaba was dominated by mites, ants and collembolans. Seventy-nine frogs (66.4% of the total) were infected by helminths, all belonging to a single species, Cosmocerca ornata, an intestinal nematode parasite.

APA, Harvard, Vancouver, ISO, and other styles

10

VINEETH, KUMAR K., U. K. RADHAKRISHNA, R. D. GODWIN, SAHA ANWESHA, K. PATIL RAJASHEKHAR, and N. A. ARAVIND. "A new species of Microhyla Tschudi, 1838 (Anura: Microhylidae) from West Coast of India: an integrative taxonomic approach." Zootaxa 4420, no. 2 (May 16, 2018): 151. http://dx.doi.org/10.11646/zootaxa.4420.2.1.

Full text

Abstract:

A new species of microhylid frog Microhyla kodial sp. nov. from the west coast of India is described in this paper. It is distinct from all described species of Microhyla occurring in South and Southeast Asia as revealed by a combination of morphological, molecular and acoustic characters. The new species is characterized by absence of lateral body stripe, tuberculated dorsal skin surface, absence of webbing between fingers, presence of basal webbing between toes and absence of dorsal marginal groove on finger and toe disc. Each male advertisement call lasts for 0.11–0.42 s and is comprised of 2–7 pulses with a dominant frequency of 3.3–4.2 kHz. The breeding season is short, limited to the rainy season (June to September) and the females lay up to 300 eggs per clutch. A molecular phylogenetic tree constructed using the mitochondrial 16S rRNA gene shows that M. kodial sp. nov. is closely related to the M. achatina group from Southeast Asia. The uncorrected genetic divergence between the new species and its closest congeners M. heymonsi, M. mantheyi, M. borneensis and M. orientalis were 7.3–7.6 %, 7.5–7.8%, 7.8–8.1% and 8.1–8.4% respectively. At present, this species is known only from the type locality, a highly disturbed urban and industrialized area which needs conservation intervention.

APA, Harvard, Vancouver, ISO, and other styles

11

KRAUS, FRED, and ALLEN ALLISON. "New species of Cophixalus (Anura: Microhylidae) from Papua New Guinea." Zootaxa 2128, no. 1 (June 9, 2009): 1–38. http://dx.doi.org/10.11646/zootaxa.2128.1.1.

Full text

Abstract:

We describe nine new species of the microhylid frog genus Cophixalus from the Southeastern Peninsula and adjacent islands of Papua New Guinea. All but one of the new species are small – adult males attain 20 mm in only one of the new forms. None of the new species has finger discs consistently larger than toe discs, a character state sometimes claimed to be diagnostic for the genus; most have finger discs distinctly and consistently smaller than toe discs. This raises the number of recognized Papuan members of the genus to 34, and several more undescribed forms exist, making this one of the largest frog genera in the region.

APA, Harvard, Vancouver, ISO, and other styles

12

ONN, CHAN KIN, L. LEE GRISMER, and JESSE GRISMER. "A new insular, endemic frog of the genus Kalophrynus Tschudi, 1838 (Anura: Microhylidae) from Tioman Island, Pahang, Peninsular MalaysiaDepartment of Biology, La Sierra University, 4500 Riverwalk Parkway, Riverside, California, 92515-8247 USA." Zootaxa 3123, no. 1 (December 8, 2011): 60. http://dx.doi.org/10.11646/zootaxa.3123.1.4.

Full text

Abstract:

A new insular, endemic species of microhylid frog of the genus Kalophrynus is described from Tioman Island, off the southeastern coast of Pahang, Peninsular Malaysia. Kalophrynus tiomanensis sp nov. can be differentiated from its congeners by the following combination of characters: SVL 21.4–26.3 mm; reduced webbing on toes; outer metatarsal tubercle absent; large, black inguinal spot and unique markings on dorsum. This discovery increases the number of endemic species of amphibians on Tioman Island to at least three.

APA, Harvard, Vancouver, ISO, and other styles

13

Crottini, Angelica, Gonçalo M. Rosa, Samuel G. Penny, Walter Cocca, Marc W. Holderied, Lovasoa M. S. Rakotozafy, and Franco Andreone. "A new stump-toed frog from the transitional forests of NW Madagascar (Anura, Microhylidae, Cophylinae, Stumpffia)." ZooKeys 933 (May 18, 2020): 139–64. http://dx.doi.org/10.3897/zookeys.933.47619.

Full text

Abstract:

A new species of the miniaturised microhylid frog genus Stumpffia, from north-western Madagascar, is described. Stumpffia froschauerisp. nov. differs from all other described Stumpffia species in colouration and morphology and is genetically divergent (≥ 7% uncorrected p-distance to all other nominal species of the genus) in a fragment of the mitochondrial 16S rRNA gene and in a segment of the nuclear Rag-1 gene. The new species is reliably known only from a few specimens collected in the Sahamalaza (and surroundings) region. Its known distribution is limited to three forest patches severely threatened by fire, drought and high levels of forest clearance, thus suggesting a classification of “Critically Endangered” according to IUCN Red List criteria.

APA, Harvard, Vancouver, ISO, and other styles

14

MORAVEC, JIŘÍ, and JÖRN KÖHLER. "A new species of Chiasmocleis (Anura: Microhylidae) from the Iquitos region, Amazonian Peru, with possible direct development." Zootaxa 1605, no. 1 (October 1, 2007): 59–67. http://dx.doi.org/10.11646/zootaxa.1605.1.4.

Full text

Abstract:

We describe a new species of microhylid frog of the genus Chiasmocleis from the upper Amazon basin of Peru (area of Iquitos, Departamento Loreto). The new species is characterized by small size, distinct reduction of fingers I and IV and the presence of large unpigmented eggs in the oviducts. The latter character is so far unknown in the recognized species of the genus and may indicate the presence of a terrestrial reproductive mode. The generic placement of the new species is discussed.

APA, Harvard, Vancouver, ISO, and other styles

15

Suwannapoom, Chatmongkon, Montri Sumontha, Jitthep Tunprasert, Thiti Ruangsuwan, Parinya Pawangkhanant, Dmitriy V. Korost, and Nikolay A. Poyarkov. "A striking new genus and species of cave-dwelling frog (Amphibia: Anura: Microhylidae: Asterophryinae) from Thailand." PeerJ 6 (February 23, 2018): e4422. http://dx.doi.org/10.7717/peerj.4422.

Full text

Abstract:

We report on a discovery ofSiamophryne troglodytesGen. et sp. nov.,a new troglophilous genus and species of microhylid frog from a limestone cave in the tropical forests of western Thailand. To assess its phylogenetic relationships we studied the 12S rRNA–16S rRNA mtDNA fragment with final alignment comprising up to 2,591 bp for 56 microhylid species. Morphological characterization of the new genus is based on examination of external morphology and analysis of osteological characteristics using microCT-scanning. Phylogenetic analyses place the new genus into the mainly Australasian subfamily Asterophryinae as a sister taxon to the genusGastrophrynoides, the only member of the subfamily known from Sundaland. The new genus markedly differs from all other Asterophryinae members by a number of diagnostic morphological characters and demonstrates significant mtDNA sequence divergence. We provide a preliminary description of a tadpole of the new genus. Thus, it represents the only asterophryine taxon with documented free-living larval stage and troglophilous life style. Our work demonstrates thatS. troglodytesGen. et sp. nov.represents an old lineage of the initial radiation of Asterophryinae which took place in the mainland Southeast Asia. Our results strongly support the “out of Indo-Eurasia” biogeographic scenario for this group of frogs. To date, the new frog is only known from a single limestone cave system in Sai Yok District of Kanchanaburi Province of Thailand; its habitat is affected by illegal bat guano mining and other human activities. As such,S. troglodytesGen. et sp. nov.is likely to be at high risk of habitat loss. Considering high ecological specialization and a small known range of the new taxon, we propose a IUCN Red List status of endangered for it.

APA, Harvard, Vancouver, ISO, and other styles

16

ZWEIFEL, RICHARD G. "PARTITION OF THE AUSTRALOPAPUAN MICROHYLID FROG GENUS SPHENOPHRYNE WITH DESCRIPTIONS OF NEW SPECIES." Bulletin of the American Museum of Natural History 253, no. 1 (2000): 1. http://dx.doi.org/10.1206/0003-0090(2000)253<0001:potamf>2.0.co;2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

LI, SHIZE, MEIHUA ZHANG, NING XU, JINGCAI LV, JIANPING JIANG, JING LIU, GANG WEI, and BIN WANG. "A new species of the genus Microhyla (Amphibia: Anura: Microhylidae) from Guizhou Province, China." Zootaxa 4624, no. 4 (July 2, 2019): 551–75. http://dx.doi.org/10.11646/zootaxa.4624.4.7.

Full text

Abstract:

A new species of the microhylid frog genus Microhyla is described from the Fanjing Mountain of Guizhou Province, China. Phylogenetic analyses based on DNA sequences of the the mitochondrial 12S rRNA, 16S rRNA and COI genes supported the new species as an independent lineage, closely related to M. beilunensis, M. mixtura and M. okinavensis. The uncorrected genetic distance on 16S rRNA gene between the new species and its closest congeners M. beilunensis, M. mixtura and M. okinavensis are 3.5%, 4.6% and 4.6% respectively. The new species is distinguished from its congeners by a combination of the following morphological characters: (1) body of medium size (SVL 19.0–22.7 mm in males and 22.5–23.0 mm in females); (2) disk and dorsal median longitudinal groove on finger tips absent; (3) toe with rudimentary webbing at base; (4) disk with dorsal median longitudinal groove present at toe tips except for the toe I; (5) two metatarsal tubercles on palm; (6) tibiotarsal articulation reaching the level between eye to nostril when leg stretched forward; (7) a distinct V-shaped white stripe on the upper midsection. The new species is known only from the type locality, and thus the finding of it has contributed to the endemic species diversity of China. It is needed to take strategy to protect the species and habitats due to the increased threats of environmental changes.

APA, Harvard, Vancouver, ISO, and other styles

18

Moura, Geraldo J. B., Edson V. E. Andrade, and Eliza M. X. Freire. "Amphibia, Anura, Microhylidae, Stereocyclops incrassatus Cope, 1870: distribution extension." Check List 6, no. 1 (March 1, 2010): 071. http://dx.doi.org/10.15560/6.1.071.

Full text

Abstract:

The microhylid frog Stereocyclops incrassatus occurs in humid forests of the eastern coast of Brazil south of the São Francisco River, in the states of Minas Gerais, Espírito Santo and Bahia. The present work reports this species in three Atlantic Rainforest fragments located in states of Alagoas and Pernambuco, northeastern Brazil, thus expanding the known distribution of Stereocyclops incrassatus ca. 1000 km northwards.

APA, Harvard, Vancouver, ISO, and other styles

19

PELOSO, PEDRO LUIZ VIEIRA, and MARCELO JOSÉ STURARO. "A new species of narrow-mouthed frog of the genus Chiasmocleis Méhelÿ 1904 (Anura, Microhylidae) from the Amazonian rainforest of Brazil." Zootaxa 1947, no. 1 (December 1, 2008): 39–52. http://dx.doi.org/10.11646/zootaxa.1947.1.2.

Full text

Abstract:

A new species of microhylid frog of the genus Chiasmocleis from the Amazonian rainforest of northern Brazil, in the states of Amazonas, Mato Grosso, Pará and Rondônia, is described and illustrated. The new species is characterized by the combination of: large size for the genus; robust body; finger I well developed; toe I developed; toes of males extensively webbed, of females basally webbed; toes fringed; dermal spines on the anterior portion of chin in males. An osteological description and brief notes on natural history are also given. Tadpole and advertisement call are unknown. The species was found in several herpetological collections misidentified as Chiasmocleis bassleri, C. shudikarensis or C. ventrimaculata, and a comparison with those species and comments on the taxonomy of the genus are provided.

APA, Harvard, Vancouver, ISO, and other styles

20

Sampaio, Paulo Roberto Melo, Talisson Ruy Batista Da Silva, and Pedro Luiz Vieira Peloso. "Amphibia, Anura, Microhylidae, Chiasmocleis avilapiresae Peloso and Sturaro, 2008: first record for the state of Acre, southwestern Amazonia, Brazil." Check List 6, no. 4 (October 1, 2010): 655. http://dx.doi.org/10.15560/6.4.655.

Full text

Abstract:

We record for the first time the presence of Chiasmocleis avilapiresae in the state of Acre, Brazil. This microhylid frog is found throughout Amazon in Brazil and no information about its distribution in the Acre state was reported previously. An increase on sampling efforts, revision of material housed in herpetological collections, and use of diverse herpetofauna sampling methods might reveal additional localities and more information about this species.

APA, Harvard, Vancouver, ISO, and other styles

21

Targino, Mariane, and José P. Pombal. "Redescription and variation of Hyophryne histrio Carvalho, 1954, an enigmatic microhylid frog from the Atlantic Rainforest of Brazil." Amphibia-Reptilia 32, no. 4 (2011): 465–75. http://dx.doi.org/10.1163/156853811x598488.

Full text

Abstract:

Abstract Hyophryne histrio was described in 1954 as a new species and placed in its own genus based on a single juvenile specimen from Ilhéus, State of Bahia, northeastern Brazil. This species was known only from the holotype until 1999 when a series of specimens was collected 50 km from the type-locality. Herein, we provide a redescription of the species based on this new material and present new information on morphological variation in order to help with the recognition of this poorly known species. The diagnostic characters are: occipital skin fold present, interdigital membranes between the toes well developed, dark venter with white blotches, an arrow-shaped dorsal color pattern that begins just after the occipital fold, and a distinct pale line between the venter and dorsum. Dermal spines, which were found in all males and vary in the number of spines and location, are reported for the first time in this species; gravid females have dermal spines only in the pericloacal region. We also compare Hyophryne histrio to all other Neotropical microhylid genera.

APA, Harvard, Vancouver, ISO, and other styles

22

ANDREONE, F., and J. E. RANDRIANIRINA. "An unexpected Rhombophryne record at Tsingy de Bemaraha confirms the presence of cophyline frogs in western Madagascar." Zootaxa 1812, no. 1 (June 30, 2008): 46. http://dx.doi.org/10.11646/zootaxa.1812.1.2.

Full text

Abstract:

Among the highly diverse amphibians of Madagascar, currently represented by 238 species (Glaw and Vences 2007), cophyline microhylid frogs are a little known clade in terms of biology and habitat requirements. They represent, after the mantellids, the most diverse frog radiation, occupying several ecological niches, with more than 45 identified species (Glaw and Vences 2007). Until recently cophylines were believed to have a distribution largely restricted to the eastern rainforests (Andreone et al. 2005). This assumption was challenged by the finding of a new Plethodontohyla at Parc National (PN) Tsingy de Bemaraha (Glaw et al. 2007), a karst area in western Madagascar. The new species (P. fonetana) is the only larger confirmed cophyline frog from a western site, although Stumpffia sp. aff. helenae is reported for Tsingy de Bemaraha (Glaw and Vences 2007), and another Stumpffia was signalled from PN d’Ankarafantsika (Ramanamanjato and Rabibisoa 2002).

APA, Harvard, Vancouver, ISO, and other styles

23

RAKOTOARISON, ANDOLALAO, MARK D. SCHERZ, MOLLY C. BLETZ, JARY H. RAZAFINDRAIBE, FRANK GLAW, and MIGUEL VENCES. "Description of the lucky Cophyla (Microhylidae, Cophylinae), a new arboreal frog from Marojejy National Park in north-eastern Madagascar." Zootaxa 4651, no. 2 (August 5, 2019): 271–88. http://dx.doi.org/10.11646/zootaxa.4651.2.4.

Full text

Abstract:

We describe a new species of arboreal microhylid frog from northern Madagascar. The new species is assigned to the genus Cophyla based on molecular phylogeny and morphological similarities to other species of this genus. Molecular phylogenetic analysis resolved Cophyla fortuna sp. nov. as closely related to C. noromalalae. However, the two species were reciprocally monophyletic both in a tree reconstructed from a combination of mitochondrial genes, and in a tree based on the nuclear RAG-1 gene. The new species, previously identified as candidate species Cophyla sp. Ca4, occurs in lowland bamboo forests around the Marojejy Massif in northeastern Madagascar. It differs from the allopatric C. noromalalae, so far only known from the Montagne d’Ambre Massif in northern Madagascar, by slightly smaller body size and shorter duration and higher spectral frequency of advertisement calls. Several additional genetically divergent mitochondrial lineages of Cophyla, related to the C. fortuna/noromalalae complex and to C. phyllodactyla, occur in intervening areas between Montagne d’Ambre and Marojejy, and their status requires further study.

APA, Harvard, Vancouver, ISO, and other styles

24

Günther, Rainer, and Stephen Richards. "Description of six new species of Xenorhina Peters, 1863 from southern Papua New Guinea (Amphibia, Anura, Microhylidae)." Zoosystematics and Evolution 97, no. 2 (July 9, 2021): 355–82. http://dx.doi.org/10.3897/zse.97.59696.

Full text

Abstract:

We describe six new species of the microhylid frog genus Xenorhina from the southern slopes of Papua New Guinea’s central cordillera and adjacent lowlands, based on a combination of morphological (including osteology) and bioacoustic features. All of the new species are fossorial or terrestrial inhabitants of tropical rainforest habitats and belong to a group of Xenorhina having a single, enlarged odontoid spike on each vomeropalatine bone. Advertisement calls and habitat preferences are described for each species, one of which is amongst the smallest hitherto members of the genus. Description of these six species brings the total number of Xenorhina known to 40 and emphasises the importance of the high-rainfall belt that extends along the southern flanks of New Guinea’s central cordillera as a hotspot of Melanesian amphibian diversity.

APA, Harvard, Vancouver, ISO, and other styles

25

Wild, Erik Russell. "New Genus and Species of Amazonian Microhylid Frog with a Phylogenetic Analysis of New World Genera." Copeia 1995, no. 4 (December 21, 1995): 837. http://dx.doi.org/10.2307/1447032.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Günther, Rainer, and Stephen Richards. "Two New Frog Species of the Genus Copiula Mehely, 1901 (Anura, Microhylidae, Asterophryinae) from Southern Papua New Guinea." Russian Journal of Herpetology 27, no. 1 (March 21, 2020): 41–53. http://dx.doi.org/10.30906/1026-2296-2020-27-1-41-53.

Full text

Abstract:

We describe two new species in the microhylid frog genus Copiula from Western Province, Southern Highlands Province, and Gulf Province in southern Papua New Guinea based on morphological and acoustic data. Both species are medium-sized (between 27 – 30 mm SVL), terrestrial frogs with a predominantly beige-colored dorsum and a yellow ventrum. They can be distinguished from each other and from all congeners by their distinct advertisement calls. In the first species calls are short bursts of 3 – 7 rapidly repeated yapping notes lasting 30 – 44 msec at a repetition rate of 11.6 – 16.5 notes/sec, and in the second species calls consist almost exclusively of two notes (occasionally one or three notes) lasting 50 – 91 msec and produced at a repetition rate of 7.1 – 11.3 notes/sec. Calls of the second species are usually uttered in long call series that may start with one or more, one-note calls before increasing to two notes, and occasionally to three notes/call late in the series. Descriptions of these two species brings the number of Copiula known from the New Guinea region to at least 12.

APA, Harvard, Vancouver, ISO, and other styles

27

Jennings, W. Bryan, Henrique Wogel, Marcos Bilate, Rodrigo de O. L. Salles, and Paulo A. Buckup. "DNA barcoding reveals species level divergence between populations of the microhylid frog genus Arcovomer (Anura: Microhylidae) in the Atlantic Rainforest of southeastern Brazil." Mitochondrial DNA Part A 27, no. 5 (May 27, 2015): 3415–22. http://dx.doi.org/10.3109/19401736.2015.1022731.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

HOSKIN, CONRAD J., and KIERAN ALAND. "Two new frog species (Microhylidae: Cophixalus) from boulder habitats on Cape York Peninsula, north-east Australia." Zootaxa 3027, no. 1 (September 15, 2011): 39. http://dx.doi.org/10.11646/zootaxa.3027.1.5.

Full text

Abstract:

Australia has a highly localised but diverse radiation of microhylid frogs. 18 species are described from north-east Queensland (14 Cophixalus and 4 Austrochaperina), most with highly localised montane distributions. While most species are small (10-25 mm) rainforest species, two differ dramatically in ecology and morphology. Cophixalus saxatilis and C. zweifeli inhabit isolated areas of jumbled boulder-pile habitat and are considerably larger than all other species (30-45 mm). Here we describe two new species of large, boulder dwelling Cophixalus from the Pascoe River region of Cape York Peninsula. Cophixalus kulakula sp. nov. occurs in piled boulder habitat amongst rainforest in the Tozer Range area, while Cophixalus pakayakulangun sp. nov. occurs in similar habitat in the Kennedy Hills region north of the Pascoe River. These are the most northerly sites for Cophixalus in Australia and both occur in rainforest areas not occupied by other species of Cophixalus. Both species are large (snout-vent length > 40 mm) and of similar morphology to the other two boulder-dwelling species. Cophixalus kulakula sp. nov. and C. pakayakulangun sp. nov. differ from each other and from all other described Cophixalus genetically and in aspects of colour pattern and morphology. The call of C. kulakula sp. nov. is also unique, but the call of C. pakayakulangun sp. nov. remains unknown. The two new species are each others closest relatives (albeit with approximately 8% genetic divergence for 12S and 16S mtDNA) and are allied to C. ornatus. The diet of both species consists primarily of ants. Both species have highly localised distributions but are abundant within these and are probably secure.

APA, Harvard, Vancouver, ISO, and other styles

29

Hirschfeld, Mareike, and Mark-Oliver Rödel. "Variable reproductive strategies of an African savanna frog, Phrynomantis microps (Amphibia, Anura, Microhylidae)." Journal of Tropical Ecology 27, no. 6 (September 30, 2011): 601–9. http://dx.doi.org/10.1017/s0266467411000320.

Full text

Abstract:

Abstract:West African savannas are habitats with unpredictable rainfall. Species with varying life-history traits may be more successful in these environments than species with fixed traits. We studied the reproduction strategies of the microhylid frog Phrynomantis microps in different savanna types, a humid savanna in Ivory Coast and a drier one in Benin. We recorded 5437 clutches in eight ponds in the humid savanna during five consecutive rainy seasons. A further 694 clutches were investigated in 10 ponds in Benin in one rainy season. For each clutch, we recorded egg numbers, deposition time, location within the pond and rainfall. Precipitation was important in triggering reproduction. However, the amount of rainfall needed differed in relation to rainy season length and total annual rainfall. Especially in years and regions with a late rainy season a threshold of minimum precipitation was needed to initiate spawning, indicating a trade-off between the need to reproduce and the survival probabilities of offspring in ponds with a high desiccation risk. Egg numbers per clutch further differed between pond sizes, breeding season length, as well as to time within the rainy season. Potential explanations for these differences, in particular desiccation and predation risks are discussed, but need further experimental support.

APA, Harvard, Vancouver, ISO, and other styles

30

Rakotoarison, Andolalao, Mark D. Scherz, Jörn Köhler, Fanomezana M. Ratsoavina, Oliver Hawlitschek, Steven Megson, Miguel Vences, and Frank Glaw. "Frogs of the genus Platypelis from the Sorata massif in northern Madagascar: description of a new species and reports of range extensions." Zoosystematics and Evolution 96, no. 1 (June 5, 2020): 263–74. http://dx.doi.org/10.3897/zse.96.47088.

Full text

Abstract:

We describe a new species of arboreal microhylid frog, genus Platypelis, from northeastern Madagascar and report the expansion of distribution ranges of two other species. Platypelis laetussp. nov. is small to medium-sized (24.3–25.6 mm snout-vent length) compared to other Platypelis, exhibits a greenish colored throat and was found in bamboo forest of the Sorata Massif. Its advertisement call consists of a single short tonal note repeated at regular intervals in long call series. Based on DNA sequences of a fragment of the mitochondrial 16S rRNA gene, the new species was placed in a clade with Platypelis olgae from the Tsaratanana Massif, and with two other, unconfirmed candidate species from the Sorata Massif and from Andravory, herein named Platypelis sp. Ca12 and Ca13. Molecular divergences among these lineages were substantial, amounting to 7.6‒8.1% uncorrected 16S p-distance to the closest nominal species, P. olgae, from which the new species is also distinguished by a lack of allele sharing in the nuclear RAG-1 gene. We also provide new records of Platypelis alticola and P. tsaratananaensis from the Sorata Massif, supported by molecular analysis. This confirms a wider distribution of these two species that previously were considered to be endemic to the Tsaratanana Massif. However, their populations in Sorata were characterized by a certain degree of genetic differentiation from Tsaratanana populations suggesting they require more detailed taxonomic assessment.

APA, Harvard, Vancouver, ISO, and other styles

31

VASSILIEVA, ANNA B., VITALY L. TROUNOV, NIKOLAY A. ,. JR POYARKOV, and EDUARD A. GALOYAN. "The phytotelm tadpoles of Microhyla arboricola (Anura: Microhylidae) from Vietnam, with comments on reproductive biology and development." Zootaxa 4247, no. 4 (March 28, 2017): 413. http://dx.doi.org/10.11646/zootaxa.4247.4.4.

Full text

Abstract:

The reproductive biology of Microhyla arboricola (Microhylidae) was studied in two regions of the southern Annamite Mountains in Vietnam. M. arboricola is an obligate phytotelm-breeder that reproduces in water-filled tree hollows in montane evergreen forests. Clutches are attached above the water level in the hollows and contain 5–37 pigmented, relatively large eggs. Larvae hatch at markedly advanced stages and develop in water until metamorphosis is completed. The developing tadpoles are obligately oophagous and feed on conspecific eggs and embryos. M. arboricola tadpoles differ from tadpoles of pond-dwelling Microhyla species in their external morphology (extremely long tails, dorsolateral position of the eyes, dark pigmentation), digestive tract morphology (large, extensible larval stomach and short intestine), and oral morphology. The larval chondrocranium and hyobranchiumof M. arboricola is described. M. arboricola shares its habitat with other hollow-breeding species of anurans. To date, M. arboricola is the only known arboreal species of the genus Microhyla that has a unique reproductive mode. The ecological niche of this species differs greatly from those occupied by other microhylids of Indochinese Peninsula.

APA, Harvard, Vancouver, ISO, and other styles

32

KLAGES, JOHANNES, FRANK GLAW, JÖRN KÖHLER, JOHANNES MÜLLER, CHRISTY A. HIPSLEY, and MIGUEL VENCES. "Molecular, morphological and osteological differentiation of a new species of microhylid frog of the genus Stumpffia from northwestern Madagascar." Zootaxa 3717, no. 2 (September 27, 2013): 280. http://dx.doi.org/10.11646/zootaxa.3717.2.8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Scherz, Mark D., Carl R. Hutter, Andolalao Rakotoarison, Jana C. Riemann, Mark-Oliver Rödel, Serge H. Ndriantsoa, Julian Glos, et al. "Morphological and ecological convergence at the lower size limit for vertebrates highlighted by five new miniaturised microhylid frog species from three different Madagascan genera." PLOS ONE 14, no. 3 (March 27, 2019): e0213314. http://dx.doi.org/10.1371/journal.pone.0213314.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Sangpakdee, Wiwat, Sumalee Phimphan, Bundit Tengjaroenkul, Krit Pinthong, Lamyai Neeratanaphan, and Alongklod Tanomtong. "Cytogenetic Study of Three Microhylid Species (Anura, Microhylidae) from Thailand." CYTOLOGIA 82, no. 1 (2017): 67–74. http://dx.doi.org/10.1508/cytologia.82.67.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Goldberg, Stephen R., Charles R. Bursey, and Fred Kraus. "Helminths of 26 species of microhylid frogs (Anura: Microhylidae) from Papua New Guinea." Journal of Natural History 43, no. 31-32 (July 22, 2009): 1987–2007. http://dx.doi.org/10.1080/00222930902993740.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Goldberg, Stephen R., Charles R. Bursey, and Fred Kraus. "Helminths of 13 species of microhylid frogs (Anura: Microhylidae) from Papua New Guinea." Journal of Natural History 50, no. 31-32 (June 16, 2016): 2005–20. http://dx.doi.org/10.1080/00222933.2016.1190416.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Gorin, Vladislav A., Evgeniya N. Solovyeva, Mahmudul Hasan, Hisanori Okamiya, D. M. S. Suranjan Karunarathna, Parinya Pawangkhanant, Anslem de Silva, et al. "A little frog leaps a long way: compounded colonizations of the Indian Subcontinent discovered in the tiny Oriental frog genus Microhyla (Amphibia: Microhylidae)." PeerJ 8 (July 3, 2020): e9411. http://dx.doi.org/10.7717/peerj.9411.

Full text

Abstract:

Frogs of the genus Microhyla include some of the world’s smallest amphibians and represent the largest radiation of Asian microhylids, currently encompassing 50 species, distributed across the Oriental biogeographic region. The genus Microhyla remains one of the taxonomically most challenging groups of Asian frogs and was found to be paraphyletic with respect to large-sized fossorial Glyphoglossus. In this study we present a time-calibrated phylogeny for frogs in the genus Microhyla, and discuss taxonomy, historical biogeography, and morphological evolution of these frogs. Our updated phylogeny of the genus with nearly complete taxon sampling includes 48 nominal Microhyla species and several undescribed candidate species. Phylogenetic analyses of 3,207 bp of combined mtDNA and nuDNA data recovered three well-supported groups: the Glyphoglossus clade, Southeast Asian Microhyla II clade (includes M. annectens species group), and a diverse Microhyla I clade including all other species. Within the largest major clade of Microhyla are seven well-supported subclades that we identify as the M. achatina, M. fissipes, M. berdmorei, M. superciliaris, M. ornata, M. butleri, and M. palmipes species groups. The phylogenetic position of 12 poorly known Microhyla species is clarified for the first time. These phylogenetic results, along with molecular clock and ancestral area analyses, show the Microhyla—Glyphoglossus assemblage to have originated in Southeast Asia in the middle Eocene just after the first hypothesized land connections between the Indian Plate and the Asian mainland. While Glyphoglossus and Microhyla II remained within their ancestral ranges, Microhyla I expanded its distribution generally east to west, colonizing and diversifying through the Cenozoic. The Indian Subcontinent was colonized by members of five Microhyla species groups independently, starting with the end Oligocene—early Miocene that coincides with an onset of seasonally dry climates in South Asia. Body size evolution modeling suggests that four groups of Microhyla have independently achieved extreme miniaturization with adult body size below 15 mm. Three of the five smallest Microhyla species are obligate phytotelm-breeders and we argue that their peculiar reproductive biology may be a factor involved in miniaturization. Body size increases in Microhyla—Glyphoglossus seem to be associated with a burrowing adaptation to seasonally dry habitats. Species delimitation analyses suggest a vast underestimation of species richness and diversity in Microhyla and reveal 15–33 undescribed species. We revalidate M. nepenthicola, synonymize M. pulverata with M. marmorata, and provide insights on taxonomic statuses of a number of poorly known species. Further integrative studies, combining evidence from phylogeny, morphology, advertisement calls, and behavior will result in a better systematic understanding of this morphologically cryptic radiation of Asian frogs.

APA, Harvard, Vancouver, ISO, and other styles

38

Atmaja, Vestidhia Yunisya, Amir Hamidy, Tuty Arisuryanti, Masafumi Matsui, and Eric N. Smith. "A new species of Microhyla (Anura: Microhylidae) from Sumatra, Indonesia." TREUBIA 45 (January 10, 2019): 25–46. http://dx.doi.org/10.14203/treubia.v45i0.3625.

Full text

Abstract:

A new species of frog in the genus Microhyla is described from Sumatra, Indonesia based on molecular and morphological characters. This new species was previously confused with M. achatina, a Javan endemic. This new species is diagnosable from its congeners by possessing a medium size (SVL in adult males 18.20–21.32 mm, in adult females 20.37–25.51 mm), a stout body, a nostril–eyelid length being about half of the snout length, having a single outer palmar tubercle, a tibiotarsal articulation reaching the center of the eye (when the hindlimbs are stretched and adpressed to the body), having finger and toe tips dilated, having the dorsum with medial longitudinal grooves, and excibiting a very thin and short dark stripe on the temporal region above a wider cream stripe, extending from the postorbital area to insertion of forelimb. Additionally, the new species is characterized by possessing relatively little foot webbing. Uncorrected 16S rRNA sequence divergences between the new taxon and sequences for other congeneric species available ranged from 4.8 to 15.0%.

APA, Harvard, Vancouver, ISO, and other styles

39

Howlader, Mohammad Sajid Ali, Abhilash Nair, Sujith V. Gopalan, and Juha Merilä. "A New Species of Microhyla (Anura: Microhylidae) from Nilphamari, Bangladesh." PLOS ONE 10, no. 3 (March 25, 2015): e0119825. http://dx.doi.org/10.1371/journal.pone.0119825.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

BIJU, S. D., SONALI GARG, RACHUNLIU G. KAMEI, and GOPINATHAN MAHESWARAN. "A new Microhyla species (Anura: Microhylidae) from riparian evergreen forest in the eastern Himalayan state of Arunachal Pradesh, India." Zootaxa 4674, no. 1 (September 23, 2019): 100–116. http://dx.doi.org/10.11646/zootaxa.4674.1.5.

Full text

Abstract:

A new frog species of the genus Microhyla (Anura, Microhylidae) is described from riparian mid-elevation (860 m asl) evergreen forest in Namdapha National Park, located in the eastern Himalayan state of Arunachal Pradesh, India. The new species can be morphologically distinguished from other congeners by a suite of characters such as adult size, dorsal and lateral colouration and markings, snout shape, foot webbing, and digit tip morphology. Phylogenetically, the new species is more closely related to some of the smallest known members of the genus. It forms a deeply divergent sister lineage to the clade containing members of the Microhyla zeylanica species group that are restricted to Peninsular India and Sri Lanka, and shows sequential relationship with Southeast Asian species M. superciliaris, followed by clade containing M. aurantiventris + M. butleri. The discovery indicates that novel taxa representing distinct evolutionary lineages still remain to be formally described in the genus Microhyla, especially from less explored regions such as the eastern Himalayan forests in Northeast India.

APA, Harvard, Vancouver, ISO, and other styles

41

FUNK, W. CHRIS, and DAVID C. CANNATELLA. "A new, large species of Chiasmocleis Méhelÿ 1904 (Anura: Microhylidae) from the Iquitos region, Amazonian Peru." Zootaxa 2247, no. 1 (October 6, 2009): 37–50. http://dx.doi.org/10.11646/zootaxa.2247.1.2.

Full text

Abstract:

We describe a new species of Chiasmocleis (Anura: Microhylidae) from lowland rainforests in the western Amazon basin of Peru (near Iquitos, Departamento de Loreto). The species differs from congeners in the Amazon basin by its large size (it is the largest known Chiasmocleis species), bright yellow iris, a grey dorsum with reddish blotches posteriorly and on limbs, and a creamy white venter with bold dark mottling with pale centers. The new species also differs from two other sympatric Chiasmocleis species at 12S–16S mitochondrial DNA (6.1% and 11.9% sequence divergence between the new species and C. ventrimaculata and C. bassleri, respectively). A comparison of the new species with other microhylids found in the western Amazon basin is provided.

APA, Harvard, Vancouver, ISO, and other styles

42

Gorin, Vladislav A., Mark D. Scherz, Dmitriy V. Korost, and Nikolay A. Poyarkov. "Consequences of parallel miniaturisation in Microhylinae (Anura, Microhylidae), with the description of a new genus of diminutive South East Asian frogs." Zoosystematics and Evolution 97, no. 1 (January 12, 2021): 21–54. http://dx.doi.org/10.3897/zse.97.57968.

Full text

Abstract:

The genus Microhyla Tschudi, 1838 includes 52 species and is one of the most diverse genera of the family Microhylidae, being the most species-rich taxon of the Asian subfamily Microhylinae. The recent, rapid description of numerous new species of Microhyla with complex phylogenetic relationships has made the taxonomy of the group especially challenging. Several recent phylogenetic studies suggested paraphyly of Microhyla with respect to Glyphoglossus Günther, 1869, and revealed three major phylogenetic lineages of mid-Eocene origin within this assemblage. However, comprehensive works assessing morphological variation among and within these lineages are absent. In the present study we investigate the generic taxonomy of Microhyla–Glyphoglossus assemblage based on a new phylogeny including 57 species, comparative morphological analysis of skeletons from cleared-and-stained specimens for 23 species, and detailed descriptions of generalized osteology based on volume-rendered micro-CT scans for five species–altogether representing all major lineages within the group. The results confirm three highly divergent and well-supported clades that correspond with external and osteological morphological characteristics, as well as respective geographic distribution. Accordingly, acknowledging ancient divergence between these lineages and their significant morphological differentiation, we propose to consider these three lineages as distinct genera: Microhylasensu stricto, Glyphoglossus, and a newly described genus, Nanohylagen. nov.

APA, Harvard, Vancouver, ISO, and other styles

43

VASSILIEVA, ANNA B. "Larval morphology of three syntopic species of Kaloula Gray (Anura: Microhylidae) from Vietnam." Zootaxa 4952, no. 1 (April 8, 2021): 71–86. http://dx.doi.org/10.11646/zootaxa.4952.1.4.

Full text

Abstract:

The external larval morphology of three species of the microhylid genus Kaloula (K. indochinensis, K. mediolineata, and K. pulchra) inhabiting the southern and central regions of Vietnam is studied. The similarities and the distinctive features of their morphometric characters, the structure of their mouthparts and spiracle, and their coloration are analysed with consideration of the geographic variability. A description of the tadpole of K. indochinensis is provided for the first time. The interspecific comparison revealed the shape of the mouthparts and the spiracle as the most reliable diagnostic characters for the field identification of the coexistent Kaloula tadpoles. The first description of the larval chondrocranium and hyobranchial apparatus of K. indochinensis demonstrates a set of morphological traits characteristic of suspension-feeding microhylids. Some developmental parameters (egg number and size, duration of embryonic and larval development, larvae size and stage at hatching) are provided for K. indochinensis and K. pulchra.

APA, Harvard, Vancouver, ISO, and other styles

44

KHATIWADA, JANAK RAJ, GUO CHENG SHU, SHOU HONG WANG, ARJUN THAPA, BIN WANG, and JIANPING JIANG. "A new species of the genus Microhyla (Anura: Microhylidae) from Eastern Nepal." Zootaxa 4254, no. 2 (April 12, 2017): 221. http://dx.doi.org/10.11646/zootaxa.4254.2.4.

Full text

Abstract:

A new species of the genus Microhyla is described from Jamun Khadi, Jhapa district of eastern Nepal, based on molecular and morphological comparisons. This species is the sister taxon of Microhyla ornata and can be distinguished by a unique vocalization, morphology and molecular phylogeny. The uncorrected genetic divergences based on rRNA gene between the new species and its closest congeners, M. nilphamariensis, M. ornata and M. rubra were 5.34%, 6.67%, and 8.31%, respectively. The new species, Microhyla taraiensis sp. nov., is distinguished from each other of Microhyla by a combination of the following morphological characters: (1) relatively larger body size (SVL ranges 19.9–20.3 mm, n = 4 in the males and 22.1–24.9 mm, n = 3 in the females); (2) dorsal surface of head and body with light red dots; (3) toes webbing poorly developed or absent; (4) a large round inner metacarpal tubercle; and an (5) elongated outer metacarpal tubercle. In addition, our study also provides a new record of Microhyla nilphamariensis from Nepal.

APA, Harvard, Vancouver, ISO, and other styles

45

JABLONSKI, DANIEL, MUAZZAM ALI KHAN, and RAFAQAT MASROOR. "The genus Microhyla (Anura: Microhylidae) in Pakistan: species status and origins." Zootaxa 4845, no. 2 (September 2, 2020): 293–96. http://dx.doi.org/10.11646/zootaxa.4845.2.11.

Full text

Abstract:

The territory of Pakistan has been influenced by biota from different geographic directions, and is divided zoogeographically into the Palearctic and Oriental regions (Khan 2006; Masroor 2012). This makes Pakistan one of the important territories in Eurasia in the understanding of past biodiversity dynamics. Well-known examples of Oriental elements among its amphibian fauna are observed in all four families of toads and frogs currently known from Pakistan: Bufonidae, Microhylidae, Megophryidae, and Dicroglossidae. In this short contribution, we focused on the species status and the origins of the genus Microhyla (Microhylidae), known from the north-eastern part (Punjab, Islamabad, and Azad Jammu and Kashmir; Masroor 2012) of the country. However, Sarkar (1984), also reported Microhyla from Bhuj in Gujarat, India, very close to the southern Pakistani province of Sindh. This genus has not yet been reported from the Palearctic region of the country and all currently known localities are from the Oriental parts of Pakistan (i.e. eastward of the Indus River). The genus is represented in the country by M. ornata (Duméril & Bibron, 1841), originally reported as Oxyglossus lima (Khan 1968). However, in view of the overall distribution and diversity of the genus based on genetic data (Garg et al. 2018, 2019; Gorin et al. 2020), it appears that populations from Pakistan could possibly have a different evolutionary history and be different taxon (see the currently scattered range of the genus between northern and western India and Pakistan; Fig. 1). Therefore, we tested this assumption using mitochondrial (mt) and nuclear (n) DNA data.

APA, Harvard, Vancouver, ISO, and other styles

46

Asrafuzzaman, Syed, Susmita Mahapatra, Jasmin Rout, and Gunanidhi Sahoo. "Dietary assessment of five species of anuran tadpoles from northern Odisha, India." Journal of Threatened Taxa 10, no. 10 (September 26, 2018): 12382–88. http://dx.doi.org/10.11609/jott.3902.10.10.12382-12388.

Full text

Abstract:

Anuran tadpoles are gregarious predators capable of differentiating food items among diverse types of prey via varied feeding and oral structures. Tadpoles were collected from different study sites in three districts of northern Odisha during three consecutive rainy seasons (from July–October of 2015–2017). After morphometric measurements (total length and body length), the stomach contents of 75 tadpoles belonging to five different anuran species (Duttaphrynus melanostictus, Euphlyctis cyanophlyctis, Fejervarya orissaensis, Polypedates maculatus and Microhyla ornata) belonging to four families namely Bufonidae, Dicroglossidae, Rhacophoridae and Microhylidae were examined. The food spectrum of tadpoles included mostly detritus, followed by phytoplankton (represented by 5 classes and 54 genera). Such studies contribute to the understanding of the natural diets of these anuran species that can assist in developing management strategies for them. Aquatic habitats must be conserved and maintained so that conservation of anurans can be ensured.

APA, Harvard, Vancouver, ISO, and other styles

47

Targino, Mariane, Agustín J. Elias-Costa, Carlos Taboada, and Julián Faivovich. "Novel morphological structures in frogs: vocal sac diversity and evolution in Microhylidae (Amphibia: Anura)." Zoological Journal of the Linnean Society 187, no. 2 (June 17, 2019): 479–93. http://dx.doi.org/10.1093/zoolinnean/zlz042.

Full text

Abstract:

Abstract Vocal sacs are present in most species of frogs and are the product of the interaction of three elements: the gular skin, the superficial submandibular musculature and an internal mucosa derived from the buccal floor. In this paper, we surveyed the structural diversity in the vocal sac of microhylids and related families in 109 exemplar species, including 11 of the 13 currently recognized subfamilies. We defined five characters related to anatomical and histological properties of the m. interhyoideus, as well as the relationship of this muscle and the vocal sac internal mucosa. We describe a vocal sac configuration characterized by highly abundant elastic fibres in association with muscle fibres, a very unusual structure in animal tissues. We discuss the evolution of novel structures in a phylogenetic context and identify new synapomorphies for Microhylidae and internal clades. Furthermore, we comment on the functional implications that these features have in vocal sac inflation.

APA, Harvard, Vancouver, ISO, and other styles

48

Shoo, L. P., and Y. Williams. "Altitudinal distribution and abundance of microhylid frogs (Cophixalus and Austrochaperina) of north-eastern Australia: baseline data for detecting biological responses to future climate change." Australian Journal of Zoology 52, no. 6 (2004): 667. http://dx.doi.org/10.1071/zo04023.

Full text

Abstract:

Extensive abundance surveys of microhylid frogs across altitudinal gradients within the Wet Tropics rainforests of north-eastern Australia were undertaken. Detailed patterns of abundance were resolved for nine microhylid species exhibiting differing associations within the altitudinal gradient. The position of altitudinal range boundaries was found to be largely consistent with previous accounts in the literature, providing confidence in established limits to species distributions. Microhylid frogs, in particular those species restricted to mountaintops, are considered among other endemic rainforest vertebrates within the region to be one of the groups most immediately threatened by climate change. The combined results establish important baseline data for assessing the impacts of climate change, including altitudinal shifts in distribution and localised declines in abundance, on microhylid frogs in the region.

APA, Harvard, Vancouver, ISO, and other styles

49

HASAN, MAHMUDUL, MOHAMMED MAFIZUL ISLAM, MITSURU KURAMOTO, ATSUSHI KURABAYASHI, and MASAYUKI SUMIDA. "Description of two new species of Microhyla (Anura: Microhylidae) from Bangladesh." Zootaxa 3755, no. 5 (January 24, 2014): 401. http://dx.doi.org/10.11646/zootaxa.3755.5.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Green, DM, and MP Simon. "Digital Microstructure in Ecologically Diverse Sympatric Microhylid Frogs, Genera Cophixalus and Sphenophryne (Amphibia, Anura), From Papua-New-Guinea." Australian Journal of Zoology 34, no. 2 (1986): 135. http://dx.doi.org/10.1071/zo9860135.

Full text

Abstract:

The extent of development of digital adhesive toe-pads in sympatric species of microhylid frogs, Cophixalus and Sphenophryne, correlates with the degree of arboreality exhibited by the species. The same basic structures and cell types are found in the toe-pads of these microhylid frogs as are found in other arboreal and semi- arboreal frogs of many diverse evolutionary lineages. A variety of types of cell surface, with unknown functional significance but potential systematic use, are found on the feet of these frogs. Allometric increase in adhesive-pad area in larger species is by widening of the toe-pad, as opposed to acquisition of accessory pads as in some hylid tree frogs.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Microhylid frog species'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles