Results 161 to 170 of about 1,126 (187)

CLARIFYING THE ORIGIN OF ORDER SCLERACTINIA (CLASS ANTHOZOA, SUBCLASS HEXACORALLIA)

Geological Society of America Abstracts with Programs
Samantha Hartzell, Claudia Johnson
semanticscholar   +2 more sources

Opinion 2500 (Case 3790) – Proposed review of Opinion 2404 and reconsideration of Case 3633: Dysactis pallida Agassiz in Verrill, 1864 (currently Exaiptasia pallida; Cnidaria, Anthozoa, Hexacorallia, Actiniaria): proposed precedence over Exaiptasia diaphana (Rapp, 1829) not approved

Bulletin of Zoological Nomenclature, 2023
. The International Commission on Zoological Nomenclature has declined to use its plenary power to reverse Opinion 2404 regarding Case 3633 which would have resulted in giving priority to the species-group name Dysactis pallida Agassiz in Verrill, 1864 ...

semanticscholar   +1 more source

Electrophysiology of two parallel conducting systems in the colonial Hexacorallia

Proceedings of the Royal Society of London. Series B. Biological Sciences, 1976
Extracellular polythene suction electrodes have been used to record electrical activity in four species of Madreporaria -Dendrogyra cylindrus, Meandrina meandrites, Mussa angulosaandEusmilia fastigiata. A colonial conduction system, believed to be the nerve net, was found in all species. It conducted without decrement between all polyps.
G A, Shelton, I D, McFarlane
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A New Species of Sea Whip Gorgonian-Associated Zoantharian (Cnidaria: Anthozoa: Hexacorallia: Parazoanthidae) from the Ryukyu Islands, Japan, with Subgeneric Subdivision of Genus Umimayanthus

Zoological Science, 2021
Symbioses between invertebrates are common in the ocean although usually the diversity and specificity of their interactions are not well understood. Parazoanthidae (Cnidaria: Anthozoa: Zoantharia) is one of the most diverse zoantharian families in terms
T. Fujii, Maria Alves dos Santos, J. Reimer   +2 more
semanticscholar   +1 more source

Colonial behaviour and electrical activity in the Hexacorallia

Proceedings of the Royal Society of London. Series B. Biological Sciences, 1975
The behaviour of the polyps of eight coral species in the subclass Hexacorallia is described with reference to electrical activity recorded with extracellular suction electrodes. Following repetitive mechanical or electrical stimulation, waves of polyp retraction spread over the colony from the point of stimulation. In response to a single
openaire   +1 more source

Case 3805 – Calliactis Verrill, 1869 (Cnidaria, Anthozoa, Hexacorallia, Actiniaria): proposed precedence over Adamsia Forbes, 1840

Bulletin of Zoological Nomenclature
. The purpose of this application, under Article 23.9.3 of the Code, is to conserve the name Calliactis Verrill, 1869 for a genus of sea anemones (Cnidaria, Actiniaria) that has been widely studied in the context of crustacean-cnidarian symbiosis.
Estefanía Rodríguez, L. Gusmão
semanticscholar   +1 more source

The Biology and Ecology of Black Corals (Cnidaria: Anthozoa: Hexacorallia: Antipatharia)

2012
Antipatharians, commonly known as black corals, are treasured by many cultures for medicinal purposes and to produce jewellery. Despite their economic and cultural importance, very little is known about the basic biology and ecology of black corals because most species inhabit deeper-water environments (>50m) which are logistically challenging to study.
Daniel, Wagner, Daniel G, Luck, Robert J, Toonen   +2 more
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Morphological and molecular description of a new genus and species of black coral (Cnidaria: Anthozoa: Hexacorallia: Antipatharia: Antipathidae: Blastopathes) from Papua New Guinea.

Zootaxa, 2020
Blastopathes medusa gen. nov., sp. nov., is described from Kimbe Bay, Papua New Guinea, based on morphological and molecular data. Blastopathes, assigned to the Antipathidae, is a large, mythology-inspiring black coral characterized by clusters of ...
J. Horowitz, M. Brugler, T. Bridge, P. Cowman   +3 more
semanticscholar   +1 more source

Morphology, distribution, and evolution of apical structure of nematocysts in hexacorallia

Journal of Morphology, 2011
AbstractCnidae are complex intracellular capsules made by all cnidarians. The most diverse of these capsules are nematocysts, which are made by all members of the phylum; spirocysts and ptychocysts are made only by members of some lineages, and they show less functional and structural diversity.
Abigail J, Reft, Marymegan, Daly
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Comparative study of zoanthid sterols the genus palythoa (hexacorallia, zoanthidea)

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1982
Abstract 1. 1. The sterol composition of three Palythoa species has been analysed and compared with literature data. 2. 2. The mixture of sterols known as “palysterol” has been observed in all our samples suggesting that palysterol might be considered as a fingerprint of Palythoa species. 3. 3.
Alphonse Kelecom, Antonio M. Solé-Cava
openaire   +1 more source