PLATE Lxrr. 



PHOLAS CRISPATA. 



CURLED, OR DOUBLE-FRONTED PlDDOCK. 

 GENERIC CHARACTER. 



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

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

 nected by a cartilage. 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Shell oval, thick, wrought witli transverse wrinkles, and divided 

 down the middle by a furrov/. The half next the hinge undulated 

 or indented. A large flat curved tooth in the cavity under the beak. 



Pholas Ce.jspata : testa ovali hinc obtusiore crispato striata car- 

 dinis dente curvo. Linn. Faun. Suec. 2125. 

 Gmel. Linn. Sj/st. p. 3216. sp. 6. 



Concha altera parte dimidia striis undatim crispatis donata, altera Isvis, 

 apophysi longa, angusta, recurva, dentiformi. An 

 c peloridibus antiquorum ? List. JI. An. Angl. 

 p. 192. tit. 38. tab. i). 38. — Pholas angulosus, 

 nobis olim, concha altera, &c. Tit. 38. — App. II. 

 An. Angl. in Goedart. p. 36. tab. 2. fig. 7. — 

 Pholas latus rugosus ex dimidio dorso et asper. 

 Hist. Conch, tab. 27P. Jig. 4J6. 



VOL. II. G 



