XXX. 
Family Galeommide. 
Genus Galeomma, J'urton., 
Family Kelliellide. 
Genus Turtonia, Forbes and Hanley. 
Family Ungulinide. 
Genus Ptychina, Philippi (= Axinus). 
Diplodonta, Bronn. 
Family Lucinide. 
Genus Lucina, Brag. 
Loripes, Poli. 
Family Astartide. 
Genus Astarte, J. Sow. 
Family Arcticide. 
Genus Arctica, Schum. ( = Cyprina). 
Isocardia, Klein. 
Tellinacea. 
Family Tellinide. 
Genus Tellina, Z. 
Gastrana, Schum. 
Family Scrobiculariide. 
Genus Scrobicularia, Schum. 
Syndosmya, Recluz. 
Family Mesodesmatide. 
Genus Ervilia, Turton. 
Family Donacide. 
Genus Donax, L. 
Family Mactride. 
Genus Mactra, L. 
Lutraria, Lai. 
