o 







GEN. IV. 



PHOLAS. 



Animal an JSCIDIA. 



SHELL, with two large valves open at each end, with 

 fmaller accefTory valves or plates at, or near the hinge. 



Hinge, folded back, united by a cartilage ; tooth fingle 

 in each valve beneath the hinge, long, incurvated. 



1. 



Dactylus. Pholas Daaylus. Lin. Syfl. }•>. IIIO. 20. 



Gmel. Syft. p. 3214. l.— Turt. Lin. iv. 



p. 172. 

 C/iem. Couch, viil. t. 101. f. 859. 

 Lifier. Conch, t. 433. f. 276. 

 /(/. Anat. 1. 1 9 . f. 1 . 2.— Br. Zool. t. 39 . f. 1 0. 

 Pholas Muricatus. Ba. Cofta. p. 244. t. 16. f. 2. 2. 

 Pholas Hians. Pult. Cat. Dorfd. p. 26. 



Borlaje Corn. t. 2S. f. 31. 



P. with a rough fliell ftriated tranfverfely, and {lightly 

 iongitudinally, or from the hinge ; the anterior end 



flrongly 



