NERITA. 989 



small ; at first sight it appears to be quite smooth, but on 

 closer examination it is found to be minutely wrinkled. The 

 oriental shell which Chemnitz has figured differs in being al- 

 most an inch long, and is probably a distinct species. 



LiTTORALis. 25. Shell smooth, with the summit 

 rather obtuse, and the lips toothless. 



Nerita littoralis. Linnaiis Si/st. Nat. p. 1253. Pennant 



Zool. iv. p. 141. t. 87. f. 143. Da Costa Brit. Conch. 



p. 50. t. 3. f. 13 to 16, and t. 4. f. 2 and 3. Born Mm. 



p. 401. Schroeter Einl. ii. p. 287. Gmelin, p. 3677. 



Schreibers Conch. \. p. 31S. Donovan, i. t. 20. f. 2. 



Montagu Test. p. 467. Maton and Racket, in Lin. 



Trans, viii. p. 226. t. 5. f. 15. Dorset Cat. p. 57. t. 16. 



f. 13 to 16, and t.20. f. 2 and 3. 

 Turbo Neritoides. Chemnitz, v. p. 234. t. 185. f. 1354. 



Schroeter Einl. ii. p. 4. Gmelin, p. 3588. Pulteney 



Dorset Cat. p. 44. 

 Le Grain de Maiz. Favanne, ii. p. 251. t. 10. lower fig. H. 

 Lister Anim. Ang. t. 3. f . 1 1 to 13, and Conch, t. 607. 



f. 39 to 42. Fetiver Gaz. t. 34. f. 4 to 6. Gualter, t. 64. 



f. N. Ktein Ost. t. i. f. 25 and 26. 

 Inhabits the coasts of Europe. Linnaus. Great Britain. Lis- 

 ter, S^c. France, Italy, Spain, St. Domingo, Martinique, 

 and Barbadoes. Favanne. 

 Shell about three-quarters of an inch long, and the breadth 

 generally rather exceeds the length, but the shape varies 

 considerably ; it is thick and strong, and has four whirls, 

 with the spire small, and generally tlattish or only slightly 

 produced; the colour is orange, reddish, brown, chestnut, 

 olive or yellow, and is most commonly uniform, but some- 

 times mottled or marked with one or two paler transverse 

 bands; the summit is said in the Systema ^iaturae to be ca- 

 rious ; the aperture is roundish oval, and many authors are 

 of opinion that Linnaeus has described this species both as a 

 Turbo and a Nerite. 



LACUSTRis. 26, Shell rather smooth, of a horn- 

 colour, and terminating in a very fine point. 



Nerita lacustris. Linnaus Si/st. Nat. p. 1253. Gmelin, 

 p. 3677. 

 ^ Gualter, t. 4. f. M M. 

 Inhabits stagnant waters and warm springs, in Europe. X?«- 



naus. 



