| Ophiactis | |
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| Ophiactis savignyi | |
| Scientific classification | |
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| Genus: | Ophiactis |
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See text | |
Ophiactis is a genus of brittle stars (Ophiuroidea).
| Ophiactis | |
|---|---|
| | |
| Ophiactis savignyi | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | |
| Family: | |
| Genus: | Ophiactis |
| Species | |
See text | |
Ophiactis is a genus of brittle stars (Ophiuroidea).
The following species are recognised by the World Register of Marine Species : [1]
Brittle stars, serpent stars, or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish. They crawl across the sea floor using their flexible arms for locomotion. The ophiuroids generally have five long, slender, whip-like arms which may reach up to 60 cm (24 in) in length on the largest specimens. From New Latin ophiurus, from Ancient Greek ὄφις + οὐρά.
Astropecten is a genus of sea stars of the family Astropectinidae.
Ophiopholis is a genus of brittle stars (Ophiuroidea) found in oceans worldwide from tropics to temperate regions.
Ophiactidae are a family of brittle stars.
Ophiotrichidae are a family of ophiurid brittle stars within the infraorder Gnathophiurina.
Gorgonocephalus is a genus of marine basket stars in the class Ophiuroidea. Members of this genus are found in coldwater environments including the Arctic, the Antarctic, and deep-sea habitats. The scientific name comes from the Greek, gorgós meaning "dreaded" and -cephalus meaning "head", and refers to the similarity between these echinoids and the Gorgon's head from Greek myth with its coiled serpents for hair. The Greek mythological hero Perseus beheaded the Gorgon Medusa; when Perseus later dropped Medusa's head on the beach, her petrifying glance turned the nearby seaweed to stone, creating the first coral.
Ophioderma is a genus of brittle stars in the family Ophiodermatiidae.
Spatangus is a genus of heart urchins in the Spatangidae family. The genus is synonymous with the previously recognised genera Prospatangus Lambert, 1902 and Spatagus. There are nine recognised species. The type species is Spatangus purpureus Müller, 1776 by subsequent designation.
Luidia is a genus of starfish in the family Luidiidae in which it is the only genus. Species of the family have a cosmopolitan distribution.
Ophiopsila is a genus of brittle star belonging to the family Ophiocomidae. Many species are bioluminescent.
Amphipholis squamata, common names brooding snake star and dwarf brittle star, is a species complex of brittle stars in the family Amphiuridae.
Astroboa is a genus of basket stars in the class Ophiuroidea.
Asteroporpa is a genus of echinoderms belonging to the family Gorgonocephalidae.
Ophiomastix is a genus of echinoderms belonging to the family Ophiocomidae.
Ophiura is a genus of echinoderms belonging to the family Ophiuridae.
Echinocyamus is a genus of echinoderms belonging to the family Fibulariidae.
Ophidiaster is a genus of echinoderms belonging to the family Ophidiasteridae.
Lumbrineris is a genus of polychaetes belonging to the family Lumbrineridae.