Acodontaster conspicuus
Odontasteridae
Acoetes lupina
Acoetidae
Acrocrinus constrictus
Acrocrinitidae
Acrocrinus shumardi
Acrocrinitidae
Actaea palmeri
Xanthidae
Actaea rufopunctata nodosa
Xanthidae
Acteocina canaliculata
Tornatinidae
Acteocina candei
Tornatinidae
Actinonaias ellipsiformis
Unionidae
Actinonaias ligamentina carinata
Unionidae
Actinonaias pectorosa
Unionidae
Actitis macularia
Scolopacidae
Acutiserolis gerlachei
Serolidae
Adamussium colbecki
Pectinidae
Adelieledone polymorpha
Megaleledonidae
Aepinus septemspinosus
Inachoididae
Aequipecten acanthodes
Pectinidae
Aequipecten glyptus
Pectinidae
Aequipecten muscosus
Pectinidae
Aethocephalichthyes hyainarhinos