108 HELICHXE. 



Mr. Alder notices this species in his catalogue of 

 Newcastle shells : " A curious pale brown variety 

 of this species (//. hortensis) occurs at Stella, the lips 

 being of a paler shade of the same colour, and rarely 

 white." 



M. Deshayes believes this animal to be the mule 

 of the two species, as the name indicates ; he says 

 they are not sterile (Lam. H. ed. 2. vi. 53.). He 

 had not observed the peculiarity in the vesicula mul- 

 tifida. 



Messrs Brard and Deshayes propose to unite 

 Helix nemoralis and H. hortensis into one species. 

 M. Deshayes states that he has often seen the two 

 kinds in copulation ; that these connections he be- 

 lieves to be fertile, for in the same situation he has 

 found the Helix hybrida with its rosy mouth ; and 

 more lately M. Deshayes proposes to consider Helix 

 nemoralis, H. hortensis, H. hybrida, H. sylvatica, 

 and H. austriaca, as all varieties of the same species. 

 (Hist. Anim. s. Verteb. viii. 56.) I 



37. 4. HELIX nemoralis. Girdled Snail. Shell 

 somewhat globular, smooth, yellowish or brown, 

 and mostly 5 -banded, with the mouth roundish 

 lunate, compressed; margin of the aperture 

 brown, (t, 3. f. 23.) 



Helix nemoralis. Linn. S. N. i. ; Montagu, p. 411. ; Drop. p. 

 94. t. 6. f. 35. ; Brard, p. 12. t. 1. fig. 2 and 4. ; Jfffrey*, 

 Linn. Trans, xvi. 330.; Sheppard, L. T. 163.; Forbes and 

 Hanley, J5. M. iv. 53. t. 115. f. 14. Tachea nemoralis. 

 Leach, Syn. Moll. 61. Cochlea fasciata. Da Costa, p. 76. 

 t. 5. f. 1, 2, 3. 8. 19. Helix cincta, and H. quinquefasciata. 

 Sheppard, L. T. 163. Cochlea versicolor. Humph, M. C. 

 Helix turturuin. Stewart, Elem. N. H. ii. 413. Helix 



