HELIX. 905 



Helix Gothica. Linnceus Si/st. Nat. p. 10.43. Gmelin,n. 

 3621. 



Inhabits the woods of Sweden. Linnams. 



Linnaeus has not made any addition to the above short charac- 

 ter, and the species has not since been ascertained. 



CUALTERIANA. 43. Shell imperforate, depressed, 

 with decussated striae, and the whirls keeled 

 at their margins ; aperture ear-shaped. 



Helix Gualteriana. LinncBus Syst. Nat. p. 1243. Chem- 

 nitz, V. p. 273. Vign. 44, at p. 237. f. J, B, and C; and 

 ix. parts, p. 83. t. 126. 1100 and 1101. Schroeter 

 Einl. ii. p. 136. t. 4. f. 2 and 3. Gmelin, p. 3621. 

 Helix obversa. Born Mus. p. 368. t. 13. f. 12 and 13. 

 Gualter, t. 68. f. E. 

 Inhabits Spain. Favanne '^ And is a land shell. Chemnitz. 

 This scarce shell is about an inch and three-quarters in diame- 

 ter, of a greyish colour, with oblique and transverse decus- 

 sated striae ; it has five whirls, with a pale carinated mar- 

 gin at the suture, and flat on the upper side ; the base is very 

 convex. 



TURCICA. 44. Shell umbilicated, depressed, rough 

 with elevated dots, and the keel crenated ; 

 aperture somewhat four-sided. 



Trochus Turcicus. Chemnitz, xi. p. 280. t. 209. f. 2065 

 and 2066. 



Inhabits Mogadore and Morocco ; and is a land shell. Chem- 

 nitz. 



This shell appears by the figures to be about ten lines in diame- 

 ter, much depressed, and of a whitish colour. Chemnitz 

 has mentioned its resemblance in some respects to H. Gual- 

 teriana, from which it may be at once distinguished by its 

 crenated keel, and large marginated umbilicus, which exhi- 

 bits the whole spire in the manner of H. Oculus-Capri. 



AVELLANA. 45. Shell umbilicated, roundish, thick, 

 with a broad rib-like keel on the body-whirl, 

 and the spire depressed ; outer lip notched 

 near the upper end. 



Helix Avellana. Gmelin, p. 3640. 



