64 



BRITISH MOLLUSKS. 



The favourite habitat of H. arbustorum is in damp places in shady 

 woods and gardens, or tinder boulders of granite on mountain sides. 

 In a more stunted form it extends its range to a considerable eleva- 

 tion. On the Alps and in the Jura it approaches nearly to the 

 snow-line. The animal is eaten, says M. Moquin-Tandon, but is 

 not much esteemed. 



4. Helix nemoralis. Helix of the woods. 



Shell ; imperforated, subglobose, rather solid, yellowish, mostly 

 banded with chocolate-brown, spire mo- 

 derately convex, whorls five to five and 

 a half, convex, densely arcuately striated 

 and corrugately malleated, last whorl 

 suddenly descending in front ; aperture 

 obliquely subquadrately lunar, lip ex- 

 panded, a little reflected, sometimes cho- 

 colate-brown, sometimes white, colu- 

 mella margin straightly drawn out. 



Helix nemoralis, Linnaeus (1758), Syst. Nat. 10th 



edit. p. 773. 

 Helix hortensis, Miiller (1774), Yerm. Hist, part 



2. p. 57 (not of Pennant). 

 Cochlea fasciata,Da, Costa (1778), Test. Brit. p. 76. pi. v. f. 1 to 5. 

 Helix hyhrida and/wsea, Poiret (1801), Coa.fiuv. et terr. deVAisne,^.1\. 

 Helix turturum, Stewart (1817), Hlem. Nat. Hist. vol. ii. p. 413. 

 Helix mutahilis pars, Hartmann (1821), Neue Alpina, vol. i. p. 242. 

 Helix cincta and quinquefasciata, Sheppard (1825), Trans. Linn. Soc. 



vol. xiv. p. 163. 

 Helicogena nemoralis, Risso (1826), Hist. Nat. Europ. Merid. vol. iv. p. 60. 

 Helicogena lihellula, Risso (1826), Hist. Nat. Europ. Merid. vol. iv. p. 62. 



pi. iii. f. 21*. 

 Tachea nemoralis and hortensis, Leach (1831), Turt. Man. pp. 84, 85. 

 Cepcea nemoralis and hortensis, Held (1837), Isis, p. 910. 

 Helicogena hortensis and hyhrida, Beck (1837), p. 39. 

 Helix siibglobosa, Binney (1837), Journ. Nat. Hist. Soc. Boston, U.S., vol. i. 



p. 485. f. 7. 

 Helix lucifuga, Ziegler (1840), Hartmann, JErd. und Silssw. Gast. vol. i. 



p. 191. pi. lxx. 

 Helix {Tachea), nemoralis and hortensis, Moqviin-Tandon (1855), Hist. 



Moll. vol. ii. p. 162-171, pi. xiii. f. 1 to 2. 



