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Relevant bibliographies by topics / Athecate genus

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Academic literature on the topic 'Athecate genus'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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Journal articles on the topic "Athecate genus"

1

GALEA, HORIA R., GÜNTER FÖRSTERRA, and VERENA HÄUSSERMANN. "Additions to the hydroids (Cnidaria: Hydrozoa) from the fjords region of southern Chile." Zootaxa 1650, no. 1 (November 30, 2007): 55–68. http://dx.doi.org/10.11646/zootaxa.1650.1.4.

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This report considers five species of hydroids collected during a scientific expedition to the Northern Patagonian Zone of Chile in March 2007. Two poorly known species, Halecium fraseri Ralph, 1958 (Haleciidae) and Thuiaria polycarpa Kirchenpauer, 1884 (Sertulariidae), are redescribed from new, fertile material. The genus Parathuiaria Leloup, 1974 is assigned to the synonymy of Thuiaria Fleming, 1828, and notes are provided on the taxonomy of its type species, T. polycarpa. Three other hydroid species, Halecium tenellum Hincks, 1861 (Haleciidae), Amphisbetia operculata (Linnaeus, 1758) (Sertulariidae), and an athecate hydroid tentatively assigned to the genus Turritopsis McCrady, 1857 (Oceaniidae), are mentioned and accompanied by figures and brief remarks.

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2

Moura, Carlos J., Marina R. Cunha, and Peter Schuchert. "Tubiclavoides striatum gen. nov. et sp. nov. (Cnidaria: Hydrozoa) a new bathyal hydroid from the Gulf of Cadiz, north-east Atlantic Ocean." Journal of the Marine Biological Association of the United Kingdom 87, no. 2 (April 2007): 421–28. http://dx.doi.org/10.1017/s002531540705415x.

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Tubiclavoides striatum, a new species of an athecate hydroid, was found on mud volcanoes, inactive carbonate chimneys, and cold-water coral stands in the Gulf of Cadiz (south-western Iberian Peninsula, Atlantic Ocean). The new family Tubiclavoididae and the new genus Tubiclavoides are proposed to accommodate the new species. The new hydroid is characterized by scattered filiform tentacles, sporosacs developing among the tentacles and hydrocauli covered with striated perisarc, often subdivided into imbricating cones. A full description and illustrations are provided, as well as some notes on the ecology and distribution of the new species.

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Yeung, P. K. K., V. K. L. Hung, F. K. C. Chan, and J. T. Y. Wong. "Characterization of a Karenia papilionacea-like dinoflagellate from the South China Sea." Journal of the Marine Biological Association of the United Kingdom 85, no. 4 (June 27, 2005): 779–81. http://dx.doi.org/10.1017/s0025315405011690.

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The morphological characteristics of a new isolate of a dorso-ventrally flattened athecate dinoflagellate obtained from Hong Kong (HK) waters is described. Partial sequences of the large subunit ribosomal RNA gene were obtained and a high degree of similarity was observed with various species within the genus Karenia. Phylogenetic comparison suggested the Karenia sp. HK forms a clade with the newly described species K. papilionacea from New Zealand but not with authentic K. brevis from North America. Karenia sp. HK is the first K. brevis-like dinoflagellate characterized by molecular cladistics from the South China Sea and the results call for re-examination of the status of other K. brevis-like morphotypes described from the region.

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Di Camillo, C., M. BO, A. Lavorato, C. Morigi, M. Segre Reinach, S. Puce, and G. Bavestrello. "Foraminifers epibiontic on Eudendrium (Cnidaria: Hydrozoa) from the Mediterranean Sea." Journal of the Marine Biological Association of the United Kingdom 88, no. 3 (May 2008): 485–89. http://dx.doi.org/10.1017/s0025315408001045.

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Four species of foraminifers Rosalina globularis, Lobatula lobatula, Acervulina inhaerens and Miniacina miniacea were observed as epibionts on some species of the athecate hydroids of the genus Eudendrium—E. armatum, E. glomeratum, E. moulouyensis and E. racemosum—from the Mediterranean Sea. The abundance and the distribution of the protozoans were determined for each hydroid and considered in relation to the shape and size of the Eudendrium branches. Results revealed differences in the composition of the epibiontic assemblage among different species of Eudendrium which were dependent on several factors, but were mainly related to the habitat and to the morphology of the host.The interactions between Eudendrium and its epibionts were considered to emphasize the role of the Eudendrium colonies as a hotspot not only of poorly known species but also of co-evolutionary relationships and life histories.

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5

Javornický, Pavel. "Bernardinium Chodat (Dinophyceae), an athecate dinoflagellate with reverse, right-handed course of the cingulum and transverse flagellum, and Esoptrodinium genus novum, its mirror-symmetrical pendant." Algological Studies/Archiv für Hydrobiologie, Supplement Volumes 87 (December 2, 1997): 29–42. http://dx.doi.org/10.1127/algol_stud/87/1997/29.

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6

Calder, Dale R., Henry H. C. Choong, and Neil McDaniel. "Similiclava nivea(Cnidaria: Hydrozoa: Similiclavidae): a new family, genus and species of athecate hydroid from the Pacific coast of North America." Journal of Natural History 49, no. 13-14 (January 12, 2015): 735–53. http://dx.doi.org/10.1080/00222933.2014.979261.

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7

Tsai, Chu-Fa, Huei-Ping Shen, and Su-Chen Tsai. "A new athecate earthworm of the genus Amynthas Kinberg (Megascolecidae: Oligochaeta) from Taiwan with discussion on phylogeny and biogeography of the A. illotus species-group." Journal of Natural History 36, no. 7 (May 2002): 757–65. http://dx.doi.org/10.1080/00222930010026391.

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8

Jorgensen, Marten FlO, Shauna Murray, and Niels Daugbjerg. "A new genus of athecate interstitial dinoflagellates, Togula gen. nov., previously encompassed within Amphidinium sensu lato: Inferred from light and electron microscopy and phylogenetic analyses of partial large subunit ribosomal DNA sequences." Phycological Research 52, no. 3 (September 2004): 284–99. http://dx.doi.org/10.1111/j.1440-1835.2004.tb00338.x.

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9

GALEA, HORIA R. "On a collection of shallow-water hydroids (Cnidaria: Hydrozoa) from Guadeloupe and Les Saintes, French Lesser Antilles." Zootaxa 1878, no. 1 (September 17, 2008): 1. http://dx.doi.org/10.11646/zootaxa.1878.1.1.

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A recent collection of shallow-water hydroids from Guadeloupe and Les Saintes, in the eastern Caribbean Sea, was studied. This is the first comprehensive report on the hydroid fauna from the study area. A total of 48 species, belonging to 9 families of athecates and 12 families of thecates, are described or listed. All the species are illustrated and, when necessary, data on the cnidome composition are provided. Two new species, Zanclea migottoi sp. nov. and Halopteris vervoorti sp. nov., are described. Rhizogeton sterreri (Calder, 1988) is redescribed based on fertile material. Its taxonomic status is discussed and the genus Rhizodendrium Calder, 1988 is included in the synonymy of Rhizogeton L. Agassiz, 1862. Scandia michaelsarsi (Leloup, 1935) is believed to be a synonym of S. gigas (Pieper, 1884), and morphological arguments are provided to support this hypothesis. An undescribed type of peculiar gonothecae, arising from the hydrothecal apertures, was found in Dynamena disticha (Bosc, 1802). Sertularella peculiaris (Leloup, 1935) is redescribed and its synonymy discussed. The nematocyst types of Symmetroscyphus intermedius (Congdon, 1907) were identified. Some species in the present collection are provisionally identified or assigned to a genus, pending the discovery of fertile material or additional life cycle studies. Finally, the hydroid fauna from the study area proves to be preponderantly tropical in nature, with several species also occurring in temperate seas. A number of species are first records for the Caribbean basin: R. sterreri, Eudendrium capillare Alder, 1856, Coryne pusilla Gaertner, 1774, Halecium cf. lankesteri (Bourne, 1890), S. gigas, and Sertularia loculosa Busk, 1852.

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Dissertations / Theses on the topic "Athecate genus"

1

Watson, Jeanette Esther, and mikewood@deakin edu au. "Studies on Australian hydroids the genus eudendrium and the fauna of the seagrass amphibolis." Deakin University. School of Science, 1990. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20050825.121035.

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An important Athecate genus, Eudendrium, and a group of species of the Thecata, the latter ecologically related by life on a common substrate, are reviewed. Eudendrium, hitherto poorly known in Australia, comprises 17 species, including 10 undescribed species with 71% Australian, and high provincial endemicity. Eudendrium may be a shelf genus avoiding turbulent oceanic waters. Species of Eudendrium are predominantly epizoic and some gregariously settling colonies may live for five years. Identification of sterile material is refined by using the cnidome in a key to classification. The species and population dynamics of hydroid epiphytes of the endemic southern Australian marine angiosperm Amphibolis were investigated with revision of historically vexatious taxa. In contrast with the northern hemisphere, no Athecata are associated with southern Australian seagrasses. Seventeen species from eight thecate families are associated with the two species of Amphibolis, including one undescribed species, H&lecium amphibolum, and one new record for Australia, Aglaophenia postdentata. The Lineolariidae is revised and a new genus, Millardaria, erected for a species from seagrass in Madagascar. The high endemicity (58%) and host-specificity of hydroids to Amphibolis is an evolutionary consequence of isolation of the seagrass dating from break-up of the Tethyan Sea. Hydroids occur throughout the year in the Amphibolis leaf canopy with a mean annual epiphytism of 44% on A. antarctica in the eastern continent and 86% in the western continent; epiphytism is 52% on A. griffithii in the western continent. Half of the eight important species are dominant epiphytes across the southern continent but the species and order of abundance varies regionally. Most are pioneer colonists with short, repetetive life-cycles lasting from weeks to a few months. Three species epiphytise the seagrass stems but only one is a leaf-canopy dominant. The canopy community comprises small, fast-growing species or dwarfed variants of species larger in other habitats: these ecomorphically constant forms are associated only with seagrass. Strategies for survival in the harsh Amphibolis environment include adnate colonies and gonothecae adnate or recumbent to the substrate, marked strengthening of the hydrorhiza, various hydrodynamic adaptations of the hydrotheca, early maturation and production of numerous small ova.

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