Prionocidaris | |
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Prionocidaris baculosa | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Echinodermata |
Class: | Echinoidea |
Order: | Cidaroida |
Family: | Cidaridae |
Genus: | Prionocidaris Agassiz, 1863 |
Prionocidaris is a genus of echinoderms belonging to the family Cidaridae. [1]
The genus has almost cosmopolitan distribution. [1]
Species: [1]
Cidaris is a genus of pencil sea urchins.
Comasteridae is a family of crinoids.
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.
Clypeaster, common name "cake urchins" or "sea biscuits", is a genus of echinoderms belonging to the family Clypeasteridae.
Comaster is a genus of crinoids.
Lytechinus is a genus of sea urchins.
Oxycomanthus is a genus of crinoids belonging to the family Comatulidae.
Eucidaris is a genus of cidaroid sea urchins known as slate pencil urchins. They are characterised by a moderately thick test, a usually monocyclic apical disc, perforate and non-crenulate tubercles and nearly straight ambulacra with horizontal pore pairs. The primary spines are few and widely spaced, stout with blunt flat tips and beaded ornamentation and the secondary spines are short and apressed. They originated in the Miocene and extant members of the genus are found in the tropical Indo-Pacific Ocean, East Pacific, Atlantic Ocean and Caribbean Sea.
Comatulidae is a family of comatulid crinoids. Since 2015, it replaces the family Comasteridae.
Histocidaris is a genus of sea urchins in the family Histocidaridae. Some species are known from the fossil record.
Amblypneustes is a genus of sea urchin, belonging to the family Temnopleuridae.
Goniocidaris is a genus of sea urchins (Echinoidea) in the family Cidaridae and typical of the subfamily Goniocidarinae. Extant species are mostly found in Indo-Pacific seas, often living at depth.
Caenopedina is a genus of sea urchins of the family Pedinidae.
Phyllacanthus is a genus of echinoderms belonging to the family Cidaridae.
Ophidiaster is a genus of echinoderms belonging to the family Ophidiasteridae.
Nectria is a genus of echinoderms belonging to the family Goniasteridae.
Metalia is a genus of echinoderms belonging to the family Brissidae.
Echinolampas is a genus of echinoderms belonging to the family Echinolampadidae.