Astropecten is a genus of sea stars of the family Astropectinidae.
Coscinasterias is a genus of sea stars of the family Asteriidae.
Goniasteridae constitute the largest family of sea stars, included in the order Valvatida. They are mostly deep-dwelling species, but the family also include several colorful shallow tropical species.
Ceramaster is a genus of cushion stars in the family Goniasteridae. The species in this genus have no arms. They live in deeper waters than most sea stars.
Henricia is a large genus of slender-armed sea stars belonging to the family Echinasteridae. It contains about fifty species.
Abatus agassizii is a species of sea urchin of the family Schizasteridae. Their armour is covered with spines. It is in the genus Abatus and lives in the sea. Abatus agassizii was first scientifically described in 1889 by Georg Pfeffer.
Abatus beatriceae is a species of sea urchin of the family Schizasteridae. Their armour is covered with spines. It is in the genus Abatus and lives in the sea. Abatus beatriceae was first scientifically described in 1986 by Larrain.
Abatus cavernosus is a species of sea urchin of the family Schizasteridae. Their armour is covered with spines. It is in the genus Abatus and lives in the sea. Abatus cavernosus was first scientifically described in 1845 by Rodolfo Philippi. Females brood their young in a brood pouch through the gastrula stage until they are juveniles.
Abatus cordatus is a species of sea urchin in the family Schizasteridae. It is native to shallow seas surrounding certain island groups in the southern Indian Ocean. The body is protected by a hard test or shell which is covered with spines. The female broods its young in deep pockets on the upper surface, retaining the young in place with specialised spines. American zoologist Addison Emery Verrill first scientifically described A. cordatus in 1876.
Abatus koehleri is a species of sea urchin of the family Schizasteridae. Their armour is covered with spines. It was first scientifically described in 1908 by Koehler. It is known from the South Orkneys.
Abatus ingens is a species of sea urchin of the family Schizasteridae. Their armour is covered with spines. It is in the genus Abatus and lives in the sea. Abatus ingens was first scientifically described in 1926 by Koehler.
Abatus philippii is a species of sea urchin of the family Schizasteridae. Their armour is covered with spines. It is in the genus Abatus and lives in the oceans of the southern hemisphere. Abatus philippii was first scientifically described in 1871 by Sven Lovén.
Abatus shackletoni is a species of sea urchin of the family Schizasteridae. Their armour is covered with spines. It is in the genus Abatus and lives in the sea. Abatus shackletoni was first scientifically described in 1911 by Koehler.
Trachyscorpia is a genus of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. The species in this genus are found in the Atlantic, Indian and Pacific oceans.
Schizasteridae is a family of echinoderms belonging to the order Spatangoida.
Asteroporpa is a genus of echinoderms belonging to the family Gorgonocephalidae.
Amphipneustes is a genus of echinoderms belonging to the order Spatangoida.
Ophiura is a genus of echinoderms belonging to the family Ophiuridae.
Pillsburiaster is a genus of echinoderms belonging to the family Goniasteridae.
Ophiarachnella is a genus of echinoderms belonging to the family Ophiodermatidae.
