Atagema spongiosa 
Atlantic bay scallop 
Atlantic Black Seahare 
Atlantic calico scallop 
Atlantic jackknife clam 
Atlantic Rangia 
Atlantic surf clam 
Atopos rugosus 
Baeolidia moebii 
Balkan Threeband Slug 
Banded bonnet 
Banded Periwinkle 
Banded piglet squid 
Bat volute 
Batangas Halgerda 
Batwing slug 
Beaded lancetooth 
Bear paw clam 
Bearded Thorny Oyster 
Beau Vallon Magnificent Slug 
Beddomea albizonatus 
Berthellina citrina 
Bertia brookei 
Big Auger