CLAUSILIA. 117 



s. Vert. (ed. Desk.) vol. viii. p. 252. — C. Pfeif. Deutsch. 

 Land und Siissw. Moll. pt. 1, p. 60, pi. 3, f. 25. — Hartm. 

 Neue Alpina, vol. i. p. 217. — Rossmassl. Iconog. Land 

 und Sttssw. Moll. vol. i. p. 76, f. 29; pt. 7, p. 16, f. 461 to 

 465, 467. — Charpent. N. Denks. Sckweiz. Ges. Nat. vol. i. 

 p. 17.— Roth, Moll. Orient, p. 20.— Philippi, Moll. Sicil. 

 vol. ii. p. 118. 

 Helix derugata, Ferus. Prodrom. Moll. p. 529 (Cocklodina). 

 Clausilia derugata, Jeffreys, Trans. Linn. Soc. vol. xvi. p. 354. 



„ laminate, Tort. Manual L. and F. W. Skells, p. 70, f. 53.— Dupuv, 

 Moll, du Gers, p. 35. — L. Pfeif. Monog. Helic. vol. ii. 

 p. 397. 

 „ lucida, Menke, Synopsis Moll. ed. 2, p. 129. 

 „ ungidata, Beck, in Pfeif. Symbolfe, p. 61. 



Shell fusiform, highly glossy, rather pellucid, of a rufous 

 or brownish horn-colour, rarely of a transparent greenish 

 white, nearly smooth, but a little striated at the base of 

 the last whorl. Whorls ten to twelve, depressed convex ; 

 spire turreted, apex rather obtuse. Suture distinct, not 

 crenated. Aperture ranging from oval-pyriform to roundish 

 oval ; peristome whitish, continuous, margined, and a little 

 expanded, but not reflected, subangulated above, rounded 

 below ; parietal or upper plait small and straightish, lower 

 fold strong, prominent, and much curved, no lunella ; 

 four deep-seated palatal folds, of which the upper is by 

 far the longer, and the next very short ; a very slight 

 umbilical crevice. 



Fine specimens measure three quarters of an inch in 

 length, and two lines in breadth. 



Animal of a general brownish yellow hue, dusky on 

 neck and head, with dark lines leading to the stout upper 

 tentacles. Sides mottled with tawny ; foot slenderer than 

 usual in this genus, but obtuse and expanded behind. 



This handsome land-shell delights in living among the 

 dead leaves of beech wood, and crawls up the trunk of the 

 beech, a tree which, as remarked to us bv Mr. Webster, 



