CLASSIFICATION. 



LUCINIDJE Lucina. 



KELLIAD^E Kellia. 



MONTACUTID^; Montacuta. 



TURTONIAD^E Turtonia. 



CYCLADID^ Cyclas. 



Pisidium. 

 **** Mantle open, tubes short. 



CARDIAD^ Cardium. 



MACTRID^ Mactra. 



CYPRINID^E Cyprina. 



Circe. 



Astarte. 



Isocardia. 

 VENERID^ Venus. 



Pullastra. 

 DONACIDJE Donax. 



Ervilia. 

 ***** Mantle open, tubes long. 



TELLINID^ Tellina. 



Syndosmya. 

 Scrobicularia. 

 Lucinopsis. 

 ****** Mantle closed, tubes short. 



ANATINIDJS Anatina. 



CORBULID^E Corbula. 



Sphsenia. 



Pandora. 

 SOLENID.E. . , Solen. 



******* Mantle closed, tubes long. 



SOLENID^: Solenicurtus. 



GASTROCHJENIDTE Gastrochaena. 



Saxicava. 



Venerirupis. 

 MYAD^: Mya. 



Panopaea. 

 PHOLADID^ Pholas. 



Teredo. 



Xylophaga. 



