TRUNCATELLINA. 



71 



9. TRUNCATELLINA HIMALAYANA (Bens.). PI- 8, figs. 5, 9. 

 Shell rimate-perforate, ovate-oblong, subcylindric, obliquely 



most minutely costulate, translucent, pale corneous; spire 

 oblong, apex obtuse, suture impressed; whorls 7, short, con- 

 vex, the last slightly ascending in front. Aperture rounded- 

 ovate, toothless ; peristome thin, the margin a little expanded, 

 right margin slightly running forward above. Length 2, 

 diam. 1 mm. (Bens.). 



Western Himalayas: Simla and Mussoorie (Hutton) ; Paujal 

 Range, Kashmir (Theobald) ; Jhelum Valley and Pir Paujal; 

 also from Naini Tal, Mussoorie and Simla (Godwin- Austen). 



Pupa himalayan-a Hutton, BENSON, Ann. Mag. N. H. (3), 

 xii, 1863, p. 428. HANLEY & THEOBALD, Conch. Indica, 1875, 

 pi. 101, f . 4. THEOBALD, Journ. Asiatic Soc. Beng., xlvii, 

 1878, p. 146. GODWIN- AUSTEN, Proc. Malac. Soc. Lond., iii, 

 1899, p. 262. Sphyradiitm himalayanum Bens., GUDE, Fauna 

 of British India, ii, 1914, p. 41 (Columella himalayana on 

 p. ix). 



The specimen from Simla figured (fig. 9) measures: length 

 2.05, diam. 0.97 mm., 6y 2 whorls. Except by being more 

 fragile and not quite so strictly cylindric, I see little to dif- 

 ferentiate it from some European T. cylindrica, though the 

 riblets are spaced a trifle wider than usual in that species. 

 The original figure is copied in fig. 5. 



Though remote from the ascertained range of cylindrica, it 

 is likely that the genus will be found in the intermediate 

 territory of Persia and Afghanistan. 



(Group of T. rivierana. Aperture having one to three teeth.) 



10. TRUNCATELLINA RIVIERANA (Benson). PL 8, figs. 10, 11, 12. 



Shell rimate-perforate, exactly cylindric, diaphanous, rather 

 glossy, most minutely, obliquely rib-striate ; suture deep ; apex 

 obtuse. Whorls 6y 2 , convex, the last one-fourth the total 

 length, slightly ascending in front, a trifle compressed around 

 the base. Aperture truncate-ovate, 3-plicate, oblique ; peri- 

 stome simple, margins separated, acute, whitish, the margins 

 a little expanded, the outer strongly arcuate above, the inner 



