Autobranchia, Grobben, 1894

Simone, Luiz Ricardo L., 2024, New species, misidentifications and problematic taxonomy of some Atlantic South American marine mollusks: a review, Papéis Avulsos de Zoologia 64, pp. 1-104 : 84

Subclass Autobranchia Infraclass Heteroconchia

Superorder Archiheterodonta Order Carditida Superfamily Crassatelloidea Family Crassatellidae Genus Kalolophus DeVries, 2016

Kalolophus antillarum (Reeve, 1842)

Remarks: K.antillarum is designated with the type locality"ad insulam Margaritta, Antillarum," along the Venezuelan Caribbean coast. Its distribution is relatively restrict- ed, spanning from the Antilles to Venezuela,and typically found at depths ranging from 13 to 64 meters. Despite this, MolluscaBase (2023) lists numerous synonyms for K. antillarum , with type localities situated along the Pacific coasts of North, Central, and even South America. Some of these synonyms include fossil species, such as a Tertiary fossil from Brazil and another Cenozoic fossil from Peru. Upon thorough examination, it was observed that the shells of these synonyms exhibit distinctions from the K. antillarum types deposited in BMNH. Due to these differences,coupled with geographical and temporal disparities, these synonymies are not currently considered valid. Further research is required to establish the taxonomic status of these entities, which possibly are valid.