76 Bulletin 5 346 



Explanation of Plate XIII. 



(33 ) 



Page. 



Fig. I. Lucina cribraria 147, 323. 



2. Corbula . cuneata'^ 152, 338. 



3. Corbula incequale 153, 339. 



4. Panopcsa reflexa " " 



* This and the following were numbered "3" in Say's original paper 

 pp. 152 and 153. 



