Lytechinus variegatus, commonly called the green sea urchin or the variegated sea urchin, is a species of sea urchin that can be found in the warm waters of the western Atlantic Ocean and Caribbean Sea.
Cassiduloida is an order of sea urchins. The group was extremely diverse with many families and species during the Mesozoic, but today, only seven extant species remain.
Clavatula is a genus of sea snails, marine gastropod mollusks in the family Clavatulidae.
Ancilla, common name the ancillas, is a genus of sea snails, marine gastropod mollusks in the family Ancillariidae.
Rostellaria is a genus of sea snails, marine gastropod mollusks in the family Strombidae, the true conchs.
Amblypneustes ovum is a species of sea urchin of the family Temnopleuridae. Their armour is covered with spines. It came from the genus Amblypneustes and lives in the sea. Amblypneustes ovum was first scientifically described in 1816 by Jean-Baptiste de Lamarck.
Amblypneustes pallidus is a species of sea urchin of the family Temnopleuridae. Their armour is covered with spines. It came from the genus Amblypneustes and lives in the sea. Amblypneustes pallidus was first scientifically described in 1816 by Jean-Baptiste de Lamarck.
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. They are sometimes collectively known as flower urchins, after the most widespread and most commonly encountered species in the genus, the flower urchin. Species included in the genus are the following:
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.
Astropyga pulvinata is a species of sea urchins of the family Diadematidae. Their armour is covered with spines. Astropyga pulvinata was first scientifically described in 1816 by Jean-Baptiste de Lamarck.
Calymne relicta is a species of sea urchins of the Family Calymnidae. Their armour is covered with spines. Calymne relicta was first scientifically described in 1877 by Thomson.
Cassidulus delectus is a species of sea urchin of the family Cassidulidae. Their armour is covered with spines. Cassidulus delectus was first scientifically described in 1960 by Krau.
Cassidulus infidus is a species of sea urchin of the family Cassidulidae. Their armour is covered with spines. Cassidulus infidus was first scientifically described in 1948 by Ole Theodor Jensen Mortensen.
Cassidulus mitis is a species of sea urchin of the family Cassidulidae. Their armour is covered with spines. Cassidulus mitis was first scientifically described in 1954 by Krau.
Centrocidaris is a monotypic genus of sea urchins belonging to the family Cidaridae. The only species is Centrocidaris doederleini. Their armour is covered with spines. Centrocidaris doederleini was first scientifically described in 1898 by Alexander Agassiz.
Toxopneustes maculatus is a rare species of sea urchin found in the Indo-West Pacific.
Clypeasteridae is a family of sea urchins in the order Clypeasteroida. This family was first scientifically described in 1835 by the Swiss-American biologist Louis Agassiz.
Fibularia is a genus of echinoderms belonging to the family Fibulariidae. The genus has almost a cosmopolitan distribution.
Rhyncholampas is a genus of echinoderms belonging to the family Cassidulidae.
Cassidulus is a genus of echinoderms belonging to the family Cassidulidae.
