Calliostoma is a genus of small to medium-sized sea snails with gills and an operculum, marine gastropod molluscs within the family Calliostomatidae, the Calliostoma top snails. Previously this genus was placed within the family Trochidae. Calliostoma is the type genus of the family Calliostomatidae.
Danilia is a genus of sea snails, marine gastropod molluscs of the family Chilodontaidae.
Modiolus, the horsemussels, are a genus of medium-sized marine bivalve molluscs in the family Mytilidae.
Brachytoma is a genus of sea snails, marine gastropod mollusks in the family Pseudomelatomidae.
Leptadrillia is a genus of sea snails, marine gastropod mollusks in the family Drilliidae.
Splendrillia is a genus of sea snails, marine gastropod mollusks in the family Drilliidae.
Bathytoma is a genus of deep-water sea snails, marine gastropod mollusks in the family Borsoniidae.
Propebela is a genus of sea snails, marine gastropod mollusks in the family Mangeliidae.
Scabrotrophon is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails.
Fossarus is a genus of sea snails, marine gastropod mollusks in the family Planaxidae.
Melanella is a genus of very small ectoparasitic sea snails, marine gastropod mollusks or micromollusks in the family Eulimidae.
Horaiclavidae is a family of predatory sea snails, marine gastropod mollusks in the superfamily Conoidea.
Pyrgulina is a small genus of very small sea snails, pyramidellid gastropod mollusks or micromollusks. This genus is currently placed in the subfamily Chrysallidinae of the family Odostomiidae.
Antiguraleus is a genus of sea snails, marine gastropod mollusks in the family Mangeliidae.
Acremodontina is a genus of sea snails, marine gastropod mollusks in the family Ataphridae, the false top snails.
The following is a taxonomy of the Brachiopoda by Emig, Bitner & Álvarez (2019). There are over 400 living species and over 120 living genera of brachiopods classified within 3 classes and 5 orders, listed below.
Dallinidae is a family of brachiopods belonging to the order Terebratulida.
Jolonica is a genus of brachiopods belonging to the family Frenulinidae.
Nipponithyris is a genus of brachiopods belonging to the family Dallinidae.
Terebratalia is a genus of brachiopods belonging to the family Terebrataliidae.
