Sea urchin genera

genus of echinoderms

Echinometra is a genus of sea urchins in the family Echinometridae.

Strongylocentrotus is a genus of sea urchins in the family Strongylocentrotidae containing several species.

genus of sea urchin

Clypeaster, common name "cake urchins" or "sea biscuits", is a genus of echinoderms belonging to the family Clypeasteridae.

Brissus is a genus of sea urchins belonging to the family Brissidae.

Tripneustes is a genus of sea urchins belonging to the family Toxopneustidae.

thumb|upright=1|Test of an Arbacia lixula. Arbacia is a genus of sea urchins, widespread in the Atlantic and eastern Pacific oceans.

Paracentrotus is a genus of sea urchin in the family Parechinidae described in 1903 by Mortensen.

Lovenia is a genus of sea urchin that is the sister taxon to Breynia and Echinocardium.

Loxechinus albus is an echinoderm of the family Parechinidae, native to coastal southern South America, ranging from Ecuador, along the entire coasts of Peru and Chile, to Argentina, as well as the Falkland Islands. It is the only species in the genus Loxechinus. It is known as the Chilean sea urchin or red sea urchin, but the latter name is typically used for the North Pacific Mesocentrotus franciscanus and it is not the only species of sea urchin in Chile (although it is the most common and widespread large sea urchins in that country). L. albus is found on rocky reefs and shores in the inte

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 (Rowe & Gates, 1995).

Psammechinus is a genus of sea urchins in the family Parechinidae containing two species: {| class="wikitable" |- ! Image !! Scientific name !! Distribution |- |120px || Psammechinus microtuberculatus (Blainville, 1825) ||western and eastern Atlantic Ocean, the Adriatic Sea and Aegean Sea |- |120px || Psammechinus miliaris (P.L.S. Müller, 1771) || eastern Atlantic Ocean from Scandinavia south to Morocco, but not in the Mediterranean Sea |- |}

Brissopsis is a genus of echinoderms belonging to the family Brissidae.

Heterocentrotus is a genus of the familia Echinometridae. They are mainly found in the Indo-Pacific basin, especially in Reunion or Hawaii. This genus appeared in the Miocene and spread throughout the warm Indo-Pacific.

Hemicentrotus pulcherrimus is a species of sea urchin, the only one in the monotypic genus Hemicentrotus. It was first described by the American engineer and marine zoologist Alexander Agassiz in 1864 as Psammechinus pulcherrimus. Its range extends along the coasts of Korea, Taiwan and China, and in Japan from Kyūshū to Ishikari Bay. An edible species, it is harvested from Kyūshū to Fukui, in the Sea of Japan.

Fibularia is a genus of echinoderms belonging to the family Fibulariidae. The genus has almost a cosmopolitan distribution.

Coelopleurus is an extant genus of echinoids with fossil records dating back to the Eocene, with remains found in Europe and North America.

Mesocentrotus is a genus of echinoderms belonging to the family Strongylocentrotidae.

Centrostephanus is a genus of echinoderms belonging to the family Diadematidae.

Brisaster is a genus of echinoderms belonging to the family Schizasteridae.

Dendraster is a genus of echinoderms, the only genus in the family Dendrasteridae. The extant species in this genus are found in the northeast Pacific Ocean from Alaska to Baja California. The best-known, most common and widespread species is D. excentricus.

Echinostrephus is a genus of echinoderms belonging to the family Echinometridae.

thumb | 220x124px | right | Pea Urchin from the Belgian coastal waters Echinocyamus is a genus of echinoderms belonging to the family Fibulariidae.

genus of sea urchin

Maretia is a genus of heart urchins belonging to the family Spatangidae.

Heliocidaris is a genus of sea urchins, part of the family Echinometridae.

Lytechinus is a genus of sea urchins.

Araeosoma is a genus of deep-sea sea urchins in the family Echinothuriidae.

Encope is a genus of echinoderms belonging to the family Mellitidae.

Abatus is a genus of sea urchins belonging to the family Schizasteridae.

Ammotrophus is a genus of echinoderms belonging to the family Clypeasteridae.

Spatagobrissus is a genus of echinoderms belonging to the family Maretiidae.

Sterechinus is a genus of sea urchins in the family Echinidae. All living members of the genus are found in the waters around Antarctica but the first species described in the genus was a fossil and was found in Europe.

Parasalenia is a genera of echinoderms belonging to the order Camarodonta.

Holopneustes is a genus of sea urchins, belonging to the family Temnopleuridae.

Amblypneustes is a genus of sea urchins, belonging to the family Temnopleuridae.

Gracilechinus is a genus of sea urchins in the family Echinidae.

Gymnechinus, is a genus of sea urchins.

Aeropsis is a genus of sea urchins in the family Aeropsidae.

Asthenosoma is a genus of sea urchins in the family Echinothuriidae. Their spines are covered with harmful venom capsules.

genus of echinoderms

Euptagus is a genus of sea urchins. It is in the family Eupatagidae.

Echinolampas is a genus of echinoderms belonging to the family Echinolampadidae.

Plexechinus is a genus of echinoderms belonging to the monotypic family Plexechinidae.

Metalia is a genus of echinoderms belonging to the family Brissidae.

Anametalia is a genus of echinoderms belonging to the family Brissidae.

Phyllacanthus is a genus of echinoderms belonging to the family Cidaridae.

Schizaster is a genus of heart urchins belonging to the family Schizasteridae. The type species of the genus is Schizaster studeri.

Echinarachnius is a genus of sand dollars, belonging to the family Echinarachniidae.

genus of echinoderms

Caenopedina is a genus of sea urchins of the family Pedinidae.

Parechinus angulosus, the Cape urchin, is a sea urchin in the family Parechinidae endemic to southern Africa. It is the only species in the genus Parechinus.

Toxopneustes is a genus of sea urchins from the tropical Indo-Pacific. It contains four species. They are known to possess medically significant venom to humans on their pedicellariae (tiny claw-like structures). They are sometimes collectively known as flower urchins, after the most widespread and most commonly encountered species in the genus, the flower urchin (Toxopneustes pileolus). ==Species== Species included in the genus are the following: {| class="wikitable" |- ! Image !! Scientific name !! Description !! Distribution |- |120px ||Toxopneustes elegans Döderlein, 1885|| Can be distin

Antrechinus is a genus of echinoderms belonging to the family Urechinidae.

Sculpsitechinus is a genus of sand dollars within the family Astriclypeidae. There are currently 3 species assigned to the genus, with members being found near Africa, Asia, and Australia in the Pacific and Indian Ocean.

Arachnoides is a genus of sea urchin within the family Clypeasteridae, found in the Indo-Pacific oceans. The base is flat and the upper surface is convex.

Asterechinus elegans is a species of sea urchin of the family Trigonocidaridae. Their armour is covered with spines. It is the only species in the genus Asterechinus and lives in the sea. Asterechinus elegans was first scientifically described in 1942 by Ole Theodor Jensen Mortensen.

Aspidodiadema is a genus of echinoderms belonging to the family Aspidodiadematidae. The species of this genus are found in the Indo-Pacific and Caribbean.

Microcyphus is a genera of echinoderms belonging to the order Temnopleuridae. ==Species== {| class="wikitable" |- ! Image !! Scientific name !! Distribution |- | ||Microcyphus annulatus ||Australia |- | ||Microcyphus ceylanicus ||Western Pacific: South China Sea. |- | ||Microcyphus compsus ||Australia |- | ||Microcyphus excentricus ||North Pacific Ocean, Philippines, Sulu |- | ||Microcyphus keiensis ||Australia |- | ||Microcyphus maculatus ||Australia |- | ||Microcyphus olivaceus ||Western Pacific: Japan, Taiwan |- |120px ||Microcyphus rousseaui ||Australia, East Africa, Egypt, Kenya, Madagas