The Clionidae are a family of sea angels, which are a group of pelagic marine gastropods.
The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called "sea angels".
Neritidae, common name the nerites, is a taxonomic family of small to medium-sized saltwater and freshwater snails which have a gill and a distinctive operculum.
Carinaria is a genus of medium-sized floating sea snails, pelagic gastropod molluscs in the family Carinariidae.
Odostomia is the most speciose genus of minute sea snails, pyramidellid gastropod mollusks. This genus is placed in the family Pyramidellidae in the subfamily Odostomiinae. There are several hundred species in this diverse genus
Axelella is a genus of sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.
Miltromorpha is a genus of sea snails, marine gastropod mollusks in the family Mitromorphidae, in the superfamily Conoidea the cone snails and their allies. This genus was originally described by Carpenter off the west coast of the United States. The species occur mainly on the continental shelf and in insular environments. Their real diversity is poorly understood.
Dermomurex is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails.
Tenagodus is a genus of sea snails, marine gastropod mollusks in the family Siliquariidae.
Entoconcha is a genus of very small parasitic sea snails, marine gastropod mollusks in the family Eulimidae.
Enteroxenos is a genus of very small parasitic sea snails, marine gastropod mollusks in the family Eulimidae.
Aartsenia is a genus of sea snails, marine gastropod mollusks in the family Pyramidellidae, the pyrams and their allies.
Gastrochaena is a genus of saltwater clams, marine bivalve molluscs in the family Gastrochaenidae. The type species of this genus is Gastrochaena cuneiformis.
The family Cliidae is a taxonomic group of small floating sea snails, pelagic marine opisthobranch gastropod mollusks.
Enteroxenos bouvieri is a species of minute sea snail, a marine gastropod mollusk in the family Eulimidae.
Enteroxenos muelleri is a species of minute sea snail, a marine gastropod mollusk in the family Eulimidae.
Enteroxenos parastichopoli is a species of minute sea snail, a marine gastropod mollusk in the family Eulimidae.
Candelabridae is a small family of cnidarians within the class Hydrozoa. Myriothelidae Hincks, 1868 and Symplectaneidae Fraser, 1941 are now accepted as synonyms of this family.
Corymorphidae is a family of hydroid cnidarians. For long placed in a presumed superfamily or infraorder Tubulariida of suborder Capitata, they are actually close relatives of the Hydridae and are now united with these and a number of relatives in a newly recognized suborder Aplanulata. Most, if not all species in this family grow on stalks and resemble small flowers.
Pterotrachea hippocampus is a species of marine gastropod in the family Pterotracheidae.
