PLATE CIV. 



PAGE 



Fig. 1. Atrina piscatoria n. sp 384 



1. Exterior of right valve. Fishing Creek, x % 



Figs. 2-3b. Arca (Scapharca) subrostrata Conrad 385 



2. Interior of right valve. Plum Point. 

 3a. Exterior of right valve. Same locality. 

 3b. Exterior of right valve. Same locality. 



Figs. 4a, 4b. Arca (Scapharca) elnia n. sp 386 



4a. Exterior of right valve. Jones Wharf. 

 4b. Interior of right valve. Same locality. 



