|
Ganeriidae
Ganeriidae is a family of echinoderms belonging to the order Valvatida The Valvatida are an order of starfish in the class Asteroidea, which contains 695 species in 172 genera in 17 families. Description The order encompasses both tiny species, which are only a few millimetres in diameter, like those in the genu .... Genera Genera: * '' Aleutiaster'' Clark, 1939 * '' Cuenotaster'' Thiéry, 1920 * '' Cycethra'' Bell, 1881 * '' Ganeria'' Gray, 1847 * '' Hyalinothrix'' Fisher, 1911 * '' Knightaster'' Clark, 1972 * '' Perknaster'' Sladen, 1889 * '' Scotiaster'' Koehler, 1907 * '' Tarachaster'' Fisher, 1913 * '' Vemaster'' Bernasconi, 1965 References {{Taxonbar, from=Q3461484 Valvatida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valvatida
The Valvatida are an order of starfish in the class Asteroidea, which contains 695 species in 172 genera in 17 families. Description The order encompasses both tiny species, which are only a few millimetres in diameter, like those in the genus '' Asterina'', and species which can reach up to 75 cm, such as species in the genus ''Thromidia''. Almost all species in this order have five arms with tube feet. This order is primarily identified by the presence of conspicuous marginal ossicles, which characterize most of the species. Most members of this order have five arms and two rows of tube feet with suckers. Some species have paxillae and in some, the main pedicellariae are clamp-like and recessed into the skeletal plates. This group includes the cushion star, and the leather star. Families According to the World Register of Marine Species, the following families are included in Valvatida: * family Acanthasteridae Gervais, 1841 * family Archasteridae Viguier, 1878 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinoderms
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cycethra (Genus Of Echinoderms)
''Pseudodreata'' is a genus of moths of the family Anthelidae. The genus was erected by George Thomas Bethune-Baker George Thomas Bethune-Baker (20 July 1857, in Birmingham – 1 December 1944, in Eastbourne) was an English entomologist who specialised in Lepidoptera, especially those in the family Lycaenidae of butterflies. His collection is partly in the M ... in 1904. Species * '' Pseudodreata aroa'' Bethune-Baker, 1904 * '' Pseudodreata strigata'' Bethune-Baker, 1904 References Anthelidae {{Anthelidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
