REPORT OF COMMISSIONERS OF INLAND FISHERIES. 37 



Leda tenuisulcata, Stimpson. 

 Yoldia obesa, Stimpson. 

 Yoldia liniatula, Say. 

 Yoldia sapotila. Gould. 

 Solenoniyidce. 



Solenomya borealis, Totten. 

 Solenomya velum. Say. 



V. AMPHINEURA. 



€hitones Regulares. 

 Ischnoidea. 



Chastopleura apiculatus, Say. 

 Trachvdermon ruber, Lowe. 



