54 HELICLDJE. 



Deutsch. Fauna, sect. 6, pt. 2, pi. 7. — RossmASSL. Iconog. 

 Land und Sussw. Moll. pt. 1, p. 59, f. C ; and pt. 5, p. 6, 

 f. 299, 300.— Gould, Invert. Massach. p. 172. 

 Cochlea fasciata, Da Costa, Brit. Conch, p. 70, pi. 5, f. 1, 2, 3, 4, 5, 8, 19. 

 I Irli.x hybrida, Poiret, Coq. Terr, et Fluv. Aisne, p. 71. — Gray, Manual L. 

 and F.W. Shells, p. 132, pi. 11, f. 130. — Thompson, Ann. 

 Nat. Hist. vol. vi. p. 206.— Brown, Illust. Conch. G. B.p. 44. 

 pi. 18, f. 27, 28. 

 „ fttsca, Poiret, Coq. Fluv. et Terr, de TAisne, p. 71. 

 ,, mutabilis, Hartm. Neue Alpina, vol. i. p. 242. 

 Helicogena nemoralis, Risso, Hist. Nat. l'Europe Mer. vol. iv. p. 60. 



„ libellula, Risso, Hist. Nat. l'Europe Mer. vol. iv. p. 62, pi. 3, f. 21.* 



Helix cincta and quifiquefasciata, Shep. Trans. Linn. Soc. vol. xiv. p. 1 63. 

 C'epcea nemnrulis and hoiiensis, Held, Isis, 1837, p. 910. 

 Helicogena hortensis and hybrida, Beck, Index Moll. Mus. Christ. Frid. p. 39. 

 Tachea „ Leach, MSS. Hartm. Erd und Siissw. Moll. pt. 1 , p. 24, 



pi. 9, 10. 

 Helix subglobosa, Binney, Bost. Journ. Nat. Hist. vol. i. p. 485, f. 7. — Char- 

 pent. N. Denies. Schweiz. Ges. Nat. vol. i. (1837). 

 „ lucifitga, Zeigl. in Hartm. Erd und Sassw. Gast. vol. i. p. 191, pi. 70. 

 (Monstrosities), Chemn. Conch. Cab. vol. ix. pi. 109, f. 924 (ed. K'nst.), Helix, 

 pi. 12, f. 3, 4. — C. Pfeik. Deutsch. Land und Siissw. Moll, 

 pt. 3, pi. 2, f. 6, 7. — Ferus. Hist. Moll. pi. 28, b. f. 10 ; 

 pi. 32, a. f. 2 ; pi. 34, f. 8, 9 ; pi. 36, f. 10, 11, 12. 



Shell moderately large, sub-globose, rather strong, sub- 

 opaque, rather glossy, more or less wrinkled by the lines 

 of growth, and most minutely and undulatingly striolated 

 in a spiral direction, extremely variable in colouring, 

 sometimes banded, sometimes of an uniform tint, but never 

 mottled, marbled, nor otherwise variegated. Spire some- 

 what raised but never equal in height to the body whorl. 

 Volutions five, moderately convex, clearly but not pro- 

 foundly defined ; the last wide and broadly rounded, and 

 deflected at its termination. Aperture rudely crescent- 

 shaped, somewhat angulated below, broader than high, 

 occupying rather more than half of the total diameter. 

 Peristome reflected, thickened internally ; outer lip arcu- 

 ated ; columella lip callous and nearly straight ; the lips 

 and parietal surface of the aperture of a lighter or darker 



