CLAVAGELLA.— Plate I. 



reflexo, ante tei-mintnn interdum laniiiul suhnjiexa 

 marginatd. 

 Philippi's Clavagella. Shell elongated, left valve 

 trigonal, curved, wrinkled outside, tube elongated, 

 slightly contracted, very little reflected at the 

 margin, sometimes before the end bordered with 

 a reflected lamina. 



Deshayes? .M8. in Brit. Mas. 

 Clavagella Melitcnsis, var. rotunda, Phi 

 Hal). Mediterranean. 



The tube is very little rellected at tin 

 is compressed at the sides, so as to form 

 somewhat clavate section. 



ippi, non Brod. 



