Abra aequalis
Semelidae
Acanthocarpus alexandri
Calappidae
Acanthochitona pygmaea
Acanthochitonidae
Acanthochitona spiculosa
Acanthochitonidae
Acanthohaustorius similis
Haustoriidae
Acanthonotozomoides oatesi
Acanthonotozomellidae
Acanthopleura gemmata
Chitonidae
Acanthopleura granulata
Chitonidae
Acanthosquilla biminiensis
Nannosquillidae
Accalathura gigantissima
Leptanthuridae
Achelia sawayai
Ammotheidae
Acodontaster conspicuus
Odontasteridae
Acoetes lupina
Acoetidae
Actaea palmeri
Xanthidae
Actaea rufopunctata nodosa
Xanthidae
Acteocina canaliculata
Tornatinidae
Acteocina candei
Tornatinidae
Actinonaias ellipsiformis
Unionidae
Actinonaias ligamentina carinata
Unionidae
Actinonaias pectorosa
Unionidae