52 BIVALVES — CHAMA. 



Family 6. — Heart shaped, umbones prominent and apices spirally 

 recu7'ved. 



Scientific Name. Locality. Common Name. 



Cor Mediterranean, France, 



Bantry Bay •••• ••••• Heart Clam ••• 



Moltkiana China Moltkian's- • do ■ ■ 



Division ll.—Shell inequivalve. 



Lazarus Mediterranean, West In- 

 dies, China Lazarus • • do 



Gryphoides East & West Indies, Medi- 



tenanean, Africa Gryphus • • do 



Cornuta Mediterranean Horned • • • do 



Sessilis W. Indies, Mediterranean Scaly do 



Lamellosa Lamellar •• do 



Punctata ........ Guadaloupe Dotted • • • • do 



Sinistrorsa East and West Indies • • • • Reversed • • do 



Arcinella Ditto, Brazils Hedgehog • do 



*Ponderosa South Seas ••• Heavy do 



