1 Tapes literata. 



2 Dnsinia discus. 



CLAMS AND COCKLES 



3 Tivela crassatelloides (much reduced). 5 CyrFtin Carolhiensis. 



4 Tapes siaminea. 



Sph(snum siilcutnn 



Cardiufh guadrtgenertum. 

 I socardia cor. 



