SOLEN. 65 



margin, and becomes broader as it approaches the latter. 

 The teeth are said to be deciduous, and to vary in number ; 

 in a specimen now before me, there are two equally strong 

 teeth in one valve, and two, of which one is thicker, in the 

 other valve, and they all lock in together. 



fragilis. 19. Shell linear-oval, nearly smooth, 

 and marked with a brown longitudinal stripe 

 in the middle. 



Solen fragilis. Solander's MSS. Pulteney, Dorset Cat. 

 p. 28. t. 4. f. 5. Montagu Test. p. 51. and Supp. p. 26. 

 Wood's Conch, t. 29. f. 4 and 5. 

 Solen bidens. Chemnitz, xi. p. 203. t. 198. f. 1939- 



Inhabits the coasts of Britain. Pulteney, fyc. very rare. Nico- 

 bar Islands. Chemnitz. 



Shell about half an inch long, and thrice as broad ; white, 

 pellucid, brittle, nearly smooth, and covered with a yellow- 

 ish epidermis ; in the specimen now before me, there is a 

 reddish brown stripe, becoming broader and fainter as it 

 recedes from the hinge, and extending longitudinally about 

 half way to the margin; the hinge has two teeth in one 

 valve, and one in the other. 



anatinus. 20. Shell membraneous, gibbous, with 

 a short longitudinal suture at the apex ; 

 hinge with a spoon-shaped tooth, and a crook- 

 ed rib. 



Solen anatinus. Linnteus Syst. Nat. p. 1115. Chemnitz, 

 vi. p. 62. t. 6. f. 46 to 48. Schroeter Eini. ii. p. 6"31. 

 Gmelin, p. 3225. Wood's Conch, p. 128. t. 30. f. 2 to 4. 

 Solen Spengleri. Gmelin, p. 3228. Wood's Conch, p. 137. 

 Solen, No. 11. Schroeter Einl. ii. p. 638. 

 Mya anserifera. Speng/er Cat. Rais. t. 1 . f. 8 and 9. Chem- 

 nitz, xi. p. 193. Vign. 26. at p. 189. f. A and B. 

 Rumphius, t. 45. f. O. Petiver Amb. t. 17. f. 11. Ar- 

 genvilie, t. 22. f. R. Born. Mus. Vign. at p. 23. f. b. 

 Enc. Method, t. 228. f. 3. 

 Inhabits the sandy shores of Amboyna. Rumphius. China, 



Tranquebar, and Coromandel. Humphreys. 

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

 broad ; pellucid, white, very thin ; and one end, which gapes 

 much more than the other, bears a fancied resemblance to 

 the bill of a duck. Linnaeus describes it to be hairy, and the 

 epidermis in some stages may probably be so ; the hinge has 

 VOL. i. f 



