MYA. 43 



f. 3 and 4. Fabricius F. Gra.nl. p. 405. Schroeter 



Einl. ii. p. 602. Gme/in, p. 3218. Schreber's Conch, i. 



p. 2. Dorset Cat. p. 28. t. 4. f. 2. Donovan, iii. t. 85. 



Montagu Test. p. 30. Maton and Racket, in Lin. 



Trans, viii. p. 35. WW's Conch, p. 91. t. 17. f. 3. 

 Chama arenaria. D« Costa UnY. Conch, p. 242. 

 Lister Cowc/*. t. 418. f. 262, and t. 419. f. 263. Enc. 



Meth. t. 229. f. 1. 

 Inhabits sand on the shores of Northern Europe. Norway, 



Lister. Greenland. Fabricius. Britain. Pennant, fyc. 

 Shell generally about two inches long, and three inches and a 

 half broad, white, covered with a wrinkled brown or chesnut- 

 coloured epidermis, and glossy white within. The gaping 

 side is rather narrower than the other, but not at all truncated, 

 as in the foregoing species. 



PECLivis. 4. Shell ovate, obliquely angulated, and 

 sub-truncated at the anterior end ; hinge with 

 a thick tooth. 



Mya declivis. Pennant, iv. p. 79. Donovan, iii. t. 82. 



Maton and Racket, in Lin. Trans, viii. p. 36. Dorset 



Cat. p. 28. t. 4. f. 6. Wood's Conch, p. 93. t. 18. f. 2 



and 3. 

 Mya pubescens. Pulteney's Dorset Cat. Edit. 1. p. 27. 



t. 4. f. 6. Montagu Test. p. 40. 

 Solen declivis. Solander's MSS. 

 Tellina fragilis. Pennant Zool. iv. p. 86. t. 47. f. 26.? 

 Variety. Shell more convex. 



Mya couvexa. Wood's Conch, p. 92. t. 18. f. 1. 

 Inhabits the sea at Weymouth. Pennant. Coast of Devon- 

 shire. Montagu. 

 Shell generally about an inch and a quarter long, and two inches 

 broad, but is sometimes found twice as large ; it is very 

 rough to the touch, and irregularly marked with concentric 

 striae ; one valve is deeper and larger than the other, so as in 

 some degree to overlap it, when closed at the broader end, 

 and the gaping end is strongly angulated, particularly in old 

 shells ; it varies considerably in convexity, and Mr. Wood's 

 Mya convexa appears to be only a variety. 



prjetenuis. 5. Shell ovate, rather flat ; hinge with 

 a spoon-shaped tooth. 

 Mya praetenuis. Dorset Cat. p. 28. t. 4. f. 7. Montagu, 

 p. 41. t. 1. f.2. Donovan, v. t. 176. Maton and Racket. 



