40 PHOLAS. 



hinge are very small, and the hiatus occupies two thirds of 

 the length. 



crispata. 11. Shell oval, rather obtuse, and 

 marked with curled striae on one side; hinge 

 with a curved tooth. 



Pholas crispata. Linnaus Syst. Nat. p. 1111. Pennant 

 Zool. iv. p. 77. t. 40. f. 12. Chemnitz, viii. p. 369- t. 

 102. f. 872 to 874. Schroeter Einl. iii. p. 541. Gmelin, 

 p. 3216. Dorset Cat. p. 27- 1. 3. f. 4. Donovan, ii. t. 

 62, and t. 69. junior. Montagu Test. p. 23.. Maton 

 and Racket, in Lin. Trans, viii. p. 32. Wood's Conch. 

 p. 81. 1. 15. f. 3 to 5. 



Pholas bifrons. Da Costa Brit. Conch, p. 242. t. 16. 

 f. 4. 



Solen crispus. Gmelin, p. 3228. 



Solen, No. 10. Schroeter Ein/eitung, ii. p. 638. 



Lister Anim. Ang. t. 5. f. 38. Conch, t. 436. f. 279. 

 Petiver Mus. t. 79. f. 13. Ola f sen Isl. t. 1 1. f. 4 to 6. 

 Enc. Meth. t. 1 69. f. 5 to 7. 

 Inhabits the Northern Shores of Europe, burrowed in rocks 



and stones. Iceland. Olajfsen. Britain. Lister, fyc. 

 Shell from one and a half, to two inches long, and two and a 



half or three inches broad, gibbous, opake, and of a brownish 



white colour. This species may be readily known by its 



having a longitudinal furrow in the middle, on one side of 



which the shell is covered with muricated stria?, and the other 



side is only transversely wrinkled. The shell which Mr. 



Donovan has figured for P. parvus, appears to be the young 



of this species. 



