Moluscos bivalvos y gasteropodos

The main life history characteristics, ecology and fishing interest of bivalve and gastropod species from the Argentine Sea are described. Exploited bivalve species are: mussel Mytilus edulis platensis, cholga Aulacomya ater, tehuelche scallop Aequipecten tehuelchus, Patagonian scallop Zygochlamys patagonica. Bivalve species irregularly exploited are: yellow clam Mesodesma mactroides, purple clam Amiantis purpurata, hard shell clam Ameghinomya antiqua and wedge shell Donax hanleyanus. It is also presented information on species of potential interest: clams Eurhomalea exhalbida and Pitar rostratus, half naked pen shell Atrina seminuda, 'geoduck' Panopea abbreviata, razor shells Solen tehuelchus, Ensis macha, Tagelus plebeius, and flat oyster Ostrea puelchana. Gastropods considered are: volutids Adelomelon (Pachycymbiola) brasiliana, Adelomelon (Pachycymbiola) ancilla, Adelomelon beckii, Zidona dufresnei and Odontocymbiola magellanica, small gastropods (families Nassariidae, Muricidae, Buccinidae and Olividae) and limpets and keyhole limpets (families Patellidae and Fissurellidae).