HELIX. 887 



the next, and the number becomes gradually smaller on the 

 other whirls ; the aperture has two irregular teeth on each 

 lip, and a fifth larger one at the upper angle. I am far from 

 certain that it is entitled to a place in the present division, 

 but it appears to have more natural affinity with H. Scara- 

 bcsus than with any other species. 



** 



With a carinated margin on the hody-whirl. 



LAPiciDA. 3. Shell umbilicated, keeled, and con- 

 vex on both sides, with a transverse ovate 

 marginated aperture. 



Helix lapicida. Ijinnctus Syst. Nat. p. 1241. Muller 



Ferm. ii. p. 40. Pennant ZooL iv. p. 132. t. 83. f. 121. 



Born Mus. p. 366. t. 14. f. 1 and 2. Schroeter Einl. ii. 



p. 124. Chemnitz, \x. part 2. p. 88. t. 126. f. 1107. 



Gme/m, p. 36 13. Donovan, ii. t. 39. f. 2. Montagu 



Test. p. 435. Maton and Racket, in Lin. Trans, viii. 



p. 187. Dorset Cat. p. 52. t. 20. f. 9- 

 Helix acuta. Da Costa Brit. Conch, p. 55. i. 4. f. 9» 

 Helix affinis. Gmelin, p. 3621. 

 Hehx, No. 198. Schroeter Einl. ii. p. 231. 

 L.a Larape. Geojfroy, p. 41. No. 10. t. 2. 

 Lister Atiim. Ang. t. 2. f. 14, and Conch, t. 69. f. 68. Pe- 



tiver Gaz. t.92. f. 11. Martini BerL Mag. iv. t. 3. f. 



36. Schroeter Erdconch. t. 2. f. 23. 

 Inhabits most parts of Europe among rocks, in woods and 



hedges, and about the trunks of old trees. 

 Shell about three-eighths of an inch long, and three-quarters of 

 an inch in diameter, and consists of five much depressed 

 whirls, so as to be almost equally convex above and below ; 

 the whirls are all transversely striated, and the body-whirl 

 sharply keeled ; the aperture has a white margin, and the 

 outer lip is reflected. 



MARGINATA. 4. Shell umbllicated, keeled, oblique- 

 ly striated, and the spire depressed ; base 

 convex, and the aperture ear-shaped with a 

 white margin. 



Helix marginata. Born Mus. p. 367. t. 14. f . 7 and 8. 



Chemnitz, ix. part 2. p. 80. t. 125. f. 1097. 

 Helix marginella. Gmelin, p. 3622. 

 Helix, No. 199. Schroeter Eird. i. p. 232. 

 x2 



