HELIX 253 



1914. Ildicigona (Arianta) urhustoruDi. (Limie) : Taylor, 

 Monog. Moll. Brit. Is. [iii], p. 417, pi. 

 xxxiv. 



[Germain {Moll. France, ii, pp. 146-147) gives as 

 synonyms : — H. thamnivaga, Mab. ; H. hypnicola, 

 Mab. ; H. albulana, Bourg. ; //. Feroeli, Bourg. ; 

 //. vihrayana, Bourg. ; H. nazarina, Bourg. ; H. 

 illusana, Servaiu ; H. thcmita, Mab. ; H. campro- 

 dunica, Kobelt ; H. Fagoti, Bourg. ; H. alpicola, 

 Charpentier; H. trochoidalis, Roffiaen; and H. 

 Repellini, Charpentier. There are also named 

 varieties without number.] 



First recorded as British in 1674, by M. Lister {Phil. 

 Trans., iv, p. 99, pi. ii, f. 4). 



British Distribution in Time : Pliocene to Recent. 



Genus : 13. HELIX, Linne. 



Etym. : — Lat. helix, from Gr. IXit, a spiral. 



Type : — Helix pomaiia, Linne. (Selected by Fleming, 1818.) 



1758. Helix : Linn.eus, Sysl. Nat., ed. 10, p. 768. 



1767. Cochlea [pars] : Geoffroy, Traite Coq. Paris, p. 24. 



1798. Janthina [pars] : Bolten, Mus. Bolt., ii, p. 75. 



1821. Hclicogena, subg. 3 of Helix [pars]: Ferus.sac, Tabl. 



syst. Limagons, Jan. ed., p. 31 (June ed., 



p. 27). 

 1837. Pomatia, B., subg. 40 of Helix [pars] : Beck, Index 



Moll., p. 43. [Non Bolten, 1798, nee Leach, 



1831.] 

 1837. Ccenatoria [pars] : Held, Isis, xxx, hft. 12, col. 910. 

 1855. Pentatccnia [pars] : Schmidt, Ahhandl. Naturw. Ver. 



Sachs., i, no. 1, p. 11. 



Sub-gen. : Helix, s.s. 



1758. Helix: as above. 



1778. Cornu : Born, Index Mus. Vindohon., i, 8vo, p. 371 : 

 Test. Mus. Vindohon., 1780, fob, p. 361, 

 pi. xiii, f. 10 & 11. [For C. copice, an 

 abnormal form of H. aspersa, Miill.] 

 [If aspersa be placed in a separate section from 

 pomatia, that section will have to be entitled 

 " Cornu." 

 1803. Cornucopia : Shaw & Nodder, Nats. Miscell., xiv, 

 pi. dlxviii. [For C. helicina, a monstrous 

 form of //. aspersa, MiiJl.] 

 1819. Pomatia : Leach, Moll. Brit. Synop. (proofs), p. 64. 



