18 



Scientific Name. 



Nodosa 



Syrniatophora 

 Suborbicularis 

 Insequivalvis • 



Labiata 



Aurita 



BIVALVES MY A. 



Locality. Common Name. 



Rivers of India • Knobbed • do • 



Rivers of Guinea Angular • • do 



Coasts of Devonshire •• ■ • Roundish • • do 



Coasts of Britain Inequivalve do • 



South American Rivers • • Lipped • • • do > 



Ganges Eared • • • • do • 



Division IV. — Hinge toothless, with a conical rounded hollow for 

 the reception of the cartilage. 



Vulsella 



Amboyna,Tranquebar •• Tweezer •• do 



