960 HELIX. 



length, and is thick, white, and somewhat glossy ; it has six 

 slightly convex longitudinally wrinkled whirls, of which the 

 body-whirl is largest, and is strangely gibbous on the side op- 

 posite the aperture, which gives the shell a singularly dis- 

 torted appearance. If I recollect right, Col. Hardwicke 

 once favoured me with the sight of two specimens which he 

 had collected in the woods of the Isle of France ; but it was 

 before I paid much attention to any other than British shells, 

 and am therefore fearful of quoting his authority for the 

 Habitat. 



****** Ovate, and imperforate. 



PUPA. 164. Shell sub-imperforate, ovate-oblong, 

 coarse, with six whirls, and the aperture lu- 

 nated-oblong. 



Helix Pupa. Linnaus Si/st. Nat. p. 1248. Gme/in, p. 



3656. 

 Bulimus Pupa. Bruguiere Enc. Meth. p. 349. ? 



Inhabits Mauritania. Linnaus. 



Linnaeus has not made any reference or addition to the above 

 specific character. Bruguiere suspects it is a species which 

 he has received from Algiers, and which he has described 

 to be sub-cylindrical, striated, and white, Avith a large ovate 

 aperture, and a tooth on the upper part of the pillar-lip ; he 

 says it is half an inch long, and two lines and one third 

 broad. 



BARBARA. 165. Shell imperforate, oblong, coarse, 

 with eight whirls, and the aperture roundish- 

 lunated. 



Helix Barbara. Linnaus Syst, Nat. p. 1248. Gmelin, p. 

 3656. 



Inhabits Algiers. Linnaus. 



LinncBus says this shell resembles, but is only half as large as 

 H. Pupa, or rather larger than a barley-corn, and has often 

 a grey band round the base of the body- whirl. Chemnitz 

 has supposed that H. Cannula may be this species ; but 

 the description answers better to a diminutive specimen of 

 H. acuta J and they both differ in being umbilicated. 



AMARULA. 166. Shell ovate-oblong, with the whirls 

 transversely keeled above, and the keel spin- 

 ous. 



