54 HELICIDiE. 



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

 Land und Sussw. Moll. pt. 1, p. 59, f. G ; and pt. 5, p. (>, 

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

 Cochlea fusciata, Da Costa, Brit. Conch, p. 76, pi. 5, f. 1, 2, 3, 4, 5, 8, 19. 

 Neltj; hr/brida, FoiRET, Coq. Terr, et FIuv. 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, lUust. Conch. G. B. p. 44. 

 pi. 18, f. 27, 28. 

 „ fugca, PoiKET, Coq. Fluv. et Terr, de I'Aisne, p. 71 . 

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

 llelicogena nemondis, Risso, Hist. Nat. I'Europe Mer. vol. iv. p. 60. 



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



Helix cincta and qimique/asciaia, Shep. Trans. Linn. Soc. vol. xiv. p. 163. 

 Cepcea ncmoralis and Iwrtensis, Held, Isis, 1837, p. 910. 



Helicoijuna horlensis and hjbrida. Beck, Lidex Moll. ]Mus. Christ. Frid. p. 39. 

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



pi. 9, 10. 

 HelLv stibt/lobosa, Binney, Bost. Journ. Nat. Hist. vol. i. p. 485, f. 7. — Char- 

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

 „ lucifutja, 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'>ist.), Helix, 

 pi. 12, f. 3, 4. — C. Pfeif. 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 tlic aperture of a lighter or darker 



