PUPA. Ill 



P. pusilla, Midler. 



Sinistral, mouth with from six to eight teeth and denticles. 



Plate CX XX. fig. 8. 



Vertigo pusilla, Muller, Hist. Verm. pt. 2, p. 124. — Jeffreys, Trans. Linn. 

 Soc. vol. xvi. p. 361, 51G.— Gray, Manual L. and F. W. 

 Shells, p. 205, pi. 7, f. 86. — Thompson, Ann. Nat. Mist. 

 vol. vi. p. 115. — Brown, Illust. Conch. G. B. p. 42, pi. 18, 

 f. 41. — Ferus. Prodrom. Moll. p. 65. — C. Pfeif. Deutsch. 

 Land und S'ussw. Moll. pt. 1, p. 72, pi. 3. f. 45, 46.— Wagner, 

 Chem. Conch, vol. xii. p. 177, pi. 235, f. 4126. — Michaud, 

 Comp. Drap. Moll. France, p. 72. — Charpent. N. Denks. 

 Schweiz. Gers. Nat. p. 18. — A. Muller, in Wiegm. Archiv. 

 Nat. 1838, pt. 1, p. 211, pi. 4, fig. 5.— Porro, Malac. p. 68. 

 — Rossmassl. Iconog. Land und S'ussw. Moll. pt. 10, p. 29, 

 f. 649.— Sowerby, Conch. Manual, f. 293. 



Helix vertigo, Gmei.in. Syst. Nat. p. 3664. 



Pupa „ Drap. Tableau Moll. p. 57; Hist. Moll. Terr, et Fluv. France, 

 p. 61, pi. 3, f. 34, 35. —Lam. Anim. s. Vert. (ed. Desh.) 

 vol. viii. p. 191. — Hartm. Neue Alpina. vol. i. p. 219 (var. /3). 



Turbo vertigo, var. Mont. Test. Brit. p. 365. — Maton and Rack. Trans. Linn. 

 Soc. vol. viii. p. 183. — Turt. Conch. Diction, p. 226. 



Vertigo Jieterostropl/a, Turt. Manual L. and F. W. Shells, p. 105, f. 86. 



Pupa pusilla, L. Pfeif. Monog. Helic. vol. ii. p. 364. 



Shell minute, sinistral, of a produced subovate form, 

 transparent, glossy, not distinctly striated, at most only 

 obscurely striolate, somewhat perforated, of an uniform 

 fulvous or pale brownish horn-colour. 



Whorls five, moderately rounded, well defined ; the 

 last compressed at the base, and delicately scrobiculated 

 at the aperture. Spire regularly attenuated ; apex rather 

 obtuse. Aperture contracted, semi-oval, rounded beneath, 

 occupying scarcely one-third the length of the shell ; 

 peristome thin, whitish, only reflected at the columella, 

 thickened within, and armed with six or seven deeply 

 seated rather solid teeth ; of which two (the lower one 

 the larger) are parietal, two are palatal, or on the outer 

 lip (the lower again the larger), and the remainder, of 



