HELIX. 947 



PELLUCIDA. 134. Shell imperforate, rather de- 

 pressed, transparent, and greenish, with 

 three whirls. 



Helix pellucida. Midler Verm. ii. p. 15. 

 Helix fuscescens. Gmelin, p. 3639. 

 Le Transparente. Geoffrot/, p. 38. No. 8. t. 2. 

 Schroeter Erdcoiich. t. 1. f. 11. 



Inhabits wet moss on the edges of pools about Paris. Geof- 

 froy. Saxony. Schroeter. Denmark. Muller. 



Muller says this shell varies from one-eighth of a line to a line 

 and a half in diameter, and that it is brittle, glossy, trans- 

 parent, highly polished, convex on both sides, and without 

 any stride or umbilicus ; empty shells are greenish white, 

 but otherwise they appear of the colour of the animal, which 

 is yellowish. 



*##*# 'J^iirreted. 



«0NS0LiDATA. 135. Shell turreted, thick, trans- 

 versely striated, brown, and the summit 

 truncated ; aperture oval. 



Helix decollata nigra. Chenmitz, ix. part 2. p. 188. 1. 136. 



f. 1258. 

 Helix' decollata, Var. i. Gmelin, p. 3652. 

 Bulinuis consolidatus. Sniguiere Enc. Meth. p. 325. 



Inhabits Surinam, and is a land shell. Chemnitz. 



Shell about fourteen lines long and ten broad, with three trans- 

 versely striated whirls, and it appears as if four or five others 

 had been broken off; it is of a brownish colour, coated with 

 a black epidermis. 



DECOLLATA. 136. Shell turreted, longitudinally 

 striated, white, and truncated at the summit; 

 aperture oval. 



Helix decollata. Linnaus Syst. Nat. p. 1247. Muller 



^cr/w. ii. p. 114. Born Mus. ip. SQQ. Schroeter Einl. 



ii. p. I6l. Chemnitz, ix. part 2. p. 182. 1. 136. f. 1254 



and 1255. Gmelin, p. 3651. 

 Bulimus decollatus. Bruguiere Enc. Meth. p. 326. 

 Lister Conch. 1. 17. f. 12, and 1. 18. f. 13. Peiiver Gaz, 



t. 66. f. 1. Gualter, t.4. f. O, P, and Q. Klein Ost. 



t. 2. f. 44. Knorr, vi. t. 32. f. 3. Favanne, t. 65. 



f. B 8. 

 Inhabits the South of Europe and the East Indies ; and is a 



