Tegula is a genus of small to medium-sized sea snails, marine gastropod molluscs in the family Tegulidae.
Xenophora, commonly called carrier shells, is a genus of medium-sized to large sea snails, marine gastropod mollusks in the family Xenophoridae, the carrier snails or carrier shells. The genus Xenophora is the type genus of the family Xenophoridae.
Bursa is a genus of large sea snails, marine gastropod molluscs in the family Bursidae, the frog snails or frog shells.
Stolidobranchia is an order of tunicates in the class Ascidiacea. The group includes both colonial and solitary animals. They are distinguished from other tunicates by the presence of folded pharyngeal baskets. This provides the etymology of their name: in ancient Greek, στολίς, ίδος means the "fold" of a cloth. Stolidobranchian sea squirts are also characterized by the complete absence of an abdomen. The abdominal organs of other tunicates are instead located to one side of the pharyngeal basket in this group.
Cancellaria is a genus of medium-sized to large sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.
Goniodoris is a genus of sea slugs, specifically dorid nudibranchs, marine gastropod molluscs in the family Goniodorididae.
Pyramidella is a genus of minute to medium-sized sea snails, marine gastropod mollusc in the subfamily Pyramidellinae of the family Pyramidellidae, the pyrams and their allies.
Cocculina is a genus of sea snails, deep-sea limpets, marine gastropod mollusks in the family Cocculinidae.
Siphonalia is a genus of sea snails, marine gastropod molluscs in the subfamily Siphonaliinae of the family Buccinidae, the true whelks.
Skenea is a genus of small to minute sea snails, marine gastropod mollusks in the family Skeneidae.
Xymenopsis is a genus of sea snails, marine gastropod mollusks in the subfamily Pagodulinae of the family Muricidae, the murex snails or rock snails.
Trochita is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails.
Facelina is a genus of sea slug, an aeolid nudibranch in the family Facelinidae.
Stenoplax is a genus of polyplacophoran molluscs in the family Ischnochitonidae.
Venerupis is a genus of marine bivalve molluscs in the family Veneridae commonly known as carpet shells. The valves are robust and rhomboidal with the umbones turned-in and nearer the anterior end. The posterior end is wedge-shaped and the internal margins of the valves are smooth. There are 3 or 4 cardinal teeth on each valve. The foot is large and the siphons are of medium length and united except at the very tip.
Bougainvillia is a genus of hydroids in the family Bougainvilliidae in the class Hydrazoa. Members of the genus are characterised by having the marginal tentacles of their medusae arranged in four bundles. Some species are solitary and others are colonial but all are filter feeders. They are found in the Southern Ocean, having a circumpolar distribution, but some species also occur in the Northern Hemisphere, possibly travelling there as polyps on the hulls of ships.
Styelidae is a family of ascidian tunicates.
Trinchesia is a genus of sea slugs, aeolid nudibranchs, marine gastropod molluscs in the family Trinchesiidae. All species were transferred to Tenellia as a result of a DNA phylogeny study in 2016. The genus was dismembered and broken into several smaller genera in 2017 with further DNA evidence and a re-interpretation of genus and family characteristics.
Ocnus is a genus of sea cucumbers in the family Cucumariidae.
Zeradina is a genus of gastropods belonging to the family Vanikoridae.
