COLUMELLA. 241 



This species is larger than P. muscorum Drap., which it 

 quite resembles in appearance. It is not to be confused with 

 Pupa edentula of the same author; it is far more lengthened 

 and more cylindric (Michaud) . 



Length 4, diam. 1.5 mm. 



France: alluvium of the Rhone, Lyons (Michaud). 



Pupa mornata Michaud, Complement Hist. Nat. Moll. terr. 

 fluv. France de Drap., 1831, p. 63, pi. 15, f. 31, 32 ; cf. Boett- 

 gek, Jahrb. D. M. Ges., VII, 1880, p. 140.— Dupuy, Hist. Nat. 

 Moll. France, p. 423, pi. 20, f. 18. — Westerlund, Fauna, p. 

 11'"). — Pupa (Columella) inornata Kobelt, Iconographie (2), 

 VIII, p. 97, pi. 336, f. 1545. — Pupa columella Locard, Arch. 

 Mus. Hist. Nat. Lyon, II, 1878, p. 231. 



The large size of this species — up to 4.5 mm. long, distin- 

 guishes it from the widely-spread C. columella; moreover, the 

 shape is strictly cylindric, the last whorl not noticeably 

 dilated. Only dead specimens have been found, but whether 

 Pleistocene or later has not been made clear. Not seen by me. 



6. Columella gutta (Benson). PI. 31, fig. 5. 



Shell obsoletely rimate, oblong-ovate, smooth, thin, pale 

 corneous, translucent ; spire obtusely ovate ; suture impressed ; 

 414 slightly convex whorls, the last descending in front. 

 Aperture oblique, toothless, angulate-rounded ; margins of the 

 peristome remote, the right margin unexpanded, acute, the 

 columellar a little expanded. Length 1%, diam. 1 mm. 

 (Bens.). 



India: Spiti Valley, Kunawur ("W. Theobald), a single 

 specimen. 



Pupa gutta Benson, Ann. Mag. N. H. (3), XIII, Feb. 1864, 

 p. 138. — Hanley and Theobald, Conchologia Indica, pt. 6, pi. 

 101, f. 9. — Pfeepfer, Monogr., VI, p. 298. — Pupilla gutta 

 Bens., Gude, Fauna Brit. India, Moll., II, 1914, p. 285. 



A lost species, from a high, doubtless Palaearctic station. 

 It appears to differ from C. edentula by the smaller size and 

 pale color, but if an adult shell, probably belonging to Colu- 

 mella. The figure is a photograph of that in Conchologia 

 Indica. 



