Cardiapoda, Genus
Carinaria, Genus
Carinariidae, Familia
Cavolinia, Group
Cavolinia, Genus
Cavoliniidae, Familia
Cavoliniinae, Subfamilia
Cephalobrachia, Genus
Cephalopyge, Genus
Cleioprocta, Superfamilia
Clio, Genus
Clioinae, Subfamilia
Clione, Genus
Clionidae, Familia
Clioninae, Subfamilia
Cliopsidae, Familia
Cliopsis, Genus
Corolla, Genus
Creseis, Genus
Crucibranchaea, Subgenus (P.)
Cuvierina, Genus
Cuvierininae, Subfamilia
Cymbulia, Genus
Cymbuliidae, Familia
Cymbuliinae, Subfamilia