PHOLAS. 37 



Pholas candidus. Linnceus Syst. Nat. p. 1111. Pennant 

 Zool. iv. p. 76. t. 39- f- 11- Da Costa Brit. Conch, p. 

 246. Chemnitz, viii. p. 358. t. 101. f. 86 1 and 862. 

 Schroeter Einl. iii. p. 539- Gmelin, p. 3215. Montagu 

 Test. p. 25. Donovan, iv. t. 132. Maton and Racket, 

 in Lin. Trans, viii. p. 31. Wood's Conch, p. 79. t. 14. 

 f. 3 and 4. 

 Lister Anim. Ang. t. 5. f. 39. Conch, t. 435. f. 278. 

 Gualter, t. 105. latter fig. E. 

 Variety. Shell broader. 

 Pholas campechensis. Gmelin, p. 3216. 

 Pholas, No. 2. Schroeter Einl. iii. p. 543. 

 Lister Conch, t. 432. f. 275. 

 Inhabits rocks in the European and American Seas. Linnaus. 

 Coasts of Britain. Lister, §c. Var. Bay of Campechy. 

 Lister. 

 Shell about three quarters of an inch long, and two inches 

 broad, white, brittle, and rounded at both ends ; the de- 

 cussated stria? extend over the whole surface of the shell, but 

 are strongest and more prickly at the broader end. Lister's 

 figure 275, differs only from the common appearance of this 

 species in being larger, and rather broader in proportion to 

 its length. 



striata. 5. Shell ovate, variously striated, wedge- 

 shaped before, and ventricose behind. 



Pholas striatus. Linnceus Syst. Nat. p. 1111. Chemnitz, 

 viii. p. 364. t. 102. f. 864 to 866. Schroeter Einl. iii. 

 p. 538. Gmelin, p. 3215. 

 Gualter, t. 105. f. F. 



Inhabits the shores of Southern Europe, burrowed in rocks. 

 Linnceus. East Indian Ocean. Chemnitz. 



Shell about three quarters of an inch long, and twice as broad, 

 and is longer in proportion to its breadth, and more ovate 

 than P. pusilla ; the outer surface is marked with decussated 

 striae in some parts, and with simple striae in others, and the 

 part near the hinge is smooih ; the posterior end is not hiant, 

 but rounded, and the valves shut close, and the singular ac- 

 cessory valve which distinguishes P. pusilla, is wanting. Mr. 

 Montagu, in a letter, expresses his opinion that the shell from 

 which this description is taken, answers exactly to Chemnitz's 

 figures of P. striata, and that the shell which in the Testacea 

 Britanica, he has described with this name, is the Linnaean 

 P. pusilla. 



