Bivalvia - Pectinida - Pectinoidae

Synonyms: Belchlamys Iredale 1929, Chlamys (Belchlamys) Iredale 1929

Parent taxon: Chlamydinae according to H. G. Spencer et al. 2004

Sister taxa: Aequipecten, Crassadoma, Cryptopecten, Hilberia, Mimachlamys, Psychrochlamys, Janopecten, Taimyronectes

Subtaxa: Chlamys (Belchlamys) aktinos, Semipallium foulcheri, Semipallium fulvicostatum, Semipallium hallae, Semipallium tigris, Semipallium trigris, Semipellium radula

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Type: Pecten trigris

Ecology: facultatively mobile low-level epifaunal suspension feeder