236 ANCYLUS. 



ANCYLUS. 



Synonymy and Reference to 

 Plate 2. 



Fig. 



1, 2. Ancylus elatior, Anthony. Annals N. 



York Lyceum, vi, 158, t. 5, f. 20— 



21, 1855. 



Binney, 1. c. 140. No. 3. 



3, 4. A. cALCARius, DeKay. Moll. N. York, 

 13, t. 5, f. 99, 1843. 

 Binney, 1. c. 144. No. 9. 



ACROLOXUS. 



5, 6. A. ovALis, Morse. Portland Jour, i, 44, 

 1864. 

 Binney, 1. c. 156. - NOi 1. 



(30) 



