130 HELICIDiE. 



ACHATINA. Lamarck. 



Shell spiral, ovate or elongated, turreted, invested with 

 an epidermis, which is frequently (in exotic species) co- 

 loured, but not polished and shining. Mouth ovate or 

 elongated, canaliculated below in consequence of the trun- 

 cation of the pillar-lip ; peristome simple, never reflected. 



Animal closely resembling that of the BuUmus. 



Some of the largest of known land-shells belong to this 

 extensive, though somewhat artificially comjiosed, genus. 

 They are mostly tropical, and often as remarkable for 

 beauty of colouring as for size. In Britain we possess only 

 a single, and that diminutive representative. 



A. AcicuLA, Miiller. 



Plate CXXVIII. fig. 4. 



Buccinum ucicula, MtfLLER, Hist. Venn. pt. 2, p. 150. — Dillw. Recent Shells, 



vol. ii. p. 652. 

 BuUmus „ Bruguiere, Encycl. Meth. vol. i. p. 311. — Drap. Moll. Ter. et 

 Fluv. France, p. 75, pi. 4, f. 25, 26. — C. Pfeif. Deutsch. 

 Land und Siissw. Moll. p. 51, pi. 3, f. 8, 9. — Charpent. 

 N. Denks. Schweiz. Ges. Nat. vol. i. p. 13 (Pol^-phemus). 

 Helix ociona, Gmelin, Syst. Nat. p. 3653. 



liiicc'nium tfirref^tre, Mont. Test. Brit. p. 24fi, pi. 8, f. 3. — Maton and Rack. 

 Trans. Linn. Soc. vol. viii. p. 139. — Turt. Conch. Diction, 

 p. 18. 



//('//> ucicula, Stoder in Coxe, Travels (Hartm.) Ferus. Prodrom. 371 



(Cochlicopa). 

 Achatina „ Lam. Anim. s. Vert. (ed. Desh.) vol. viii. p. 304. — Fi^eming, 

 Brit. Animals, p. 267. — Turt. Manual L. and F. W. Shells, 

 p. 89, f. 71. — Gray, Manual L. and F. W. Shells, p. 191, 

 pi. 6, f. 77.— Brown, Illust. Conch. G. B. p. 36, pi. ] 8, f. 12. 

 Philippi, Moll. Sicil. vol. i. p. 142, pi. 8, f. 25; vol. ii. p. 115. 

 — Cantraine, Malac. Med. p. 138. — Rossmassl. Iconog. 

 Land und Siissw. Moll. pt. 10, p. 35, f. G58. — L. Pfeif. 

 Monog. Helic. vol. ii. p. 274. 

 Bidinus „ Hartm. Neue Alpina, vol. i. p. 222. 



