t^LATE LXIX. 



PHOLAS PARVUS. 



SMALL P ID DOCK. 

 GENERIC CHARACTER. 



Animal ascldia. Shell bivalve, opening wide at each end, with 

 several lesser valves at the hinge. The hinges folded back arid con- 

 tieiled by a cartilage. 



SPECIFIC CHARACTER. 



AND 



SYNONYMS. 



Shell oval, thinj wrought with transverse wrinkles, and divided 

 down the middle by a furrow. The half next the hinge undulatsd or 

 indented. A slender and oblique curved tooth in the cavity under the 

 beak. Size of a hazel nut* 



Pholas Parvus. Little. Pen. Br. 2ool. sp. 13. 

 Pholas Parvus : simillima tota structura Pholade Bifronte. Ujj 

 Costa Br. Conch, p. 2 H. sp. 67. 



This shell was first described by Pennant in his Zoology ; he says 

 it very much resembles the Pholas crispatus but is never found larger 

 than a hazel nut. Da Costa describes it also, but doubts whether it 



VOL. II. H 



