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Comasteridae - Comaster Nobilis-001
Comasteridae is a family of crinoids. This family is now considered obsolete, having been replaced by the family Comatulidae since 2015. Description and characteristics Members of this family are characterized by possession of one or paired blade-like or knob-like projections on a few to many of the outer segments of the oral pinnules (the side branches closest to the base of the arms) that together form structures called combs. In adults of most species, the mouth is offset from the center of the oral surface, often near the margin, and the anus lies centrally. In some, mouth and anus are both offset, while in a few, the mouth lies centrally and the anus is displaced, the arrangement in other crinoids. Comasterids are also unique among feather stars in other respects: some species in several genera have the centrodorsal, the aboral skeletal plate, reduced and bearing few or no anchoring hook-like cirri; whereas all other feather stars have symmetrical rays, many reef-dwelling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comaster Schlegelii
''Comaster schlegelii'', the variable bushy feather star, is a crinoid in the family Comatulidae. It was previously classified as ''Comanthina schlegeli'' but further research showed that it was better placed in the genus ''Comaster''. It is found on shallow water reefs in the western Pacific Ocean. Description The variable bushy feather star often keeps its body concealed in a crevice and the only visible part is its array of arms, especially when it is young. There are in fact five rays attached to the upper part of the body but these subdivide into a number of arms and when one of these is lost, two grow in its place. The arms are flexible, being formed from many jointed calcareous small plates known as ossicles, and can be coiled up. On either side of each arm are short side branches known as pinnules. On the underside of the body are about twenty clawlike appendages known as cirri which are used to cling on to the underlying surface, but they are lost in older specimens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comanthus
''Comanthus'' is a genus of echinoderms belonging to the family Comatulidae Comatulidae is a family of comatulid crinoids. Since 2015, it replaces the family Comasteridae. Description and characteristics This family is of recent restoration, and still has no consensual description. However the description of the fam .... The species of this genus are found in Indian and Pacific Ocean. Species: *'' Comanthus briareus'' *'' Comanthus delicata'' *'' Comanthus gisleni'' *'' Comanthus imbricatus'' *'' Comanthus kumi'' *'' Comanthus novaezealandiae'' *'' Comanthus parvicirrus'' *'' Comanthus scintillus'' *'' Comanthus suavia'' *'' Comanthus taviana'' *'' Comanthus wahlbergii'' *'' Comanthus weberi'' References {{Taxonbar, from=Q3469160 Comatulidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinoderm Families
An echinoderm () is any member of the phylum Echinodermata (). The adults are recognisable by their (usually five-point) radial symmetry, and include starfish, brittle stars, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies or "stone lilies". Adult echinoderms are found on the sea bed at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 7,000 living species, making it the second-largest grouping of deuterostomes, after the chordates. Echinoderms are the largest entirely marine phylum. The first definitive echinoderms appeared near the start of the Cambrian. The echinoderms are important both ecologically and geologically. Ecologically, there are few other groupings so abundant in the biotic desert of the deep sea, as well as shallower oceans. Most echinoderms are able to reproduce asexually and regenerate tissue, organs, and limbs; in some cases, they can undergo complete regeneration from a single limb. Geolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoosystema
''Zoosystema'' is a peer-reviewed scientific journal published by the National Museum of Natural History, France (''Muséum national d'histoire naturelle''), covering research in animal biodiversity. Specific subjects within the journal's scope include comparative, functional and evolutionary morphology, phylogeny, biogeography, taxonomy and nomenclature, among others. Zoosystema publishes articles in English and French. Indexing The journal is abstracted and indexed by Current Contents, Biological Abstracts, ASFA (Aquatic Sciences and Fisheries Abstracts), Pascal, Zoological Record, Journal Citation Index Expanded (SciSearch®) and Scopus Scopus is Elsevier's abstract and citation database launched in 2004. Scopus covers nearly 36,377 titles (22,794 active titles and 13,583 inactive titles) from approximately 11,678 publishers, of which 34,346 are peer-reviewed journals in top-l .... References {{reflist Zoology journals Animal science journals Open access journals Ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
