PLEURODISCIDAE. 187 



subangular, scarcely descending in front. Aperture rounded- 

 lunar, oblique ; peristome simple, straight, the margins distant, 

 columella a little reflected. Alt. 2.8-3 mm., diam. 3-3.25 

 mm. (Lindholm). 



Eastern Turkestan: Keria Mts. at 10,400 ft. (N. M. 

 Przevalski). 



Pyramidula (Pyramidula) rupestris Drap. subsp, prze- 

 valskii Lindholm, Annuaire du Mus. Zool. de I'Acad. Sci. de 

 la Russie, vol. 23, p. 256. 



Lindholm further notes that var. conoidea Bgt. reaches 

 similar size but has the bodywhorl quite rounded and the 

 umbilicus more open towards the base. The north Indian 

 P. humilis has a much more depressed shell and a larger 

 umbilicus. 



Pyramidula hierosolymitana (Bgt.). PI. 25, figs. 12, 13. 



Shell very small, narrowly perforate, globose-conoidal, very 

 sharply striatulate, brownish-corneous; 4 convex whorls, in- 

 creasing regularly; suture deeply impressed; last whorl 

 rounded; the small perforation narrow. Aperture obliquely 

 rounded; peristome simple and acute, the columellar margin 

 reflected subdeflexed in the umbilical perforation; margins 

 approaching, slightly separated by the last whorl, Alt. 2i/4 

 mm., diam. 2i/2 mm. (Bgt.). 



Palestine : Valley of Jehosaphat, under the sun-baked stones 

 of tombs, rather abundant (Saulcy) ; valley of Hinnon (Roth). 



Helix hierosolymitana Bourguignat, Testacea Novissima 

 quae Saulcy in itinere per Orientem coll., p. 13; Cat. Moll. 

 •Saulcy, 1853, p. 22, pi. 1, f. 32-35.— Kobelt, 1877, Ross- 

 maessler's Iconogr. vol. 5, p. 93, f. 1416. 



It differs from P. rupestris by the much narrower umbilicus. 

 Bourguignat 's figures are copied. 



Pyramidula conica Pils. & Hir. PL 23, figs. 3-3c. 



Shell umbilicate, conic, rather thin, amber-brown with a 

 slightly olivaceous tint, slightly translucent. First 1^ whorls 

 smooth, with rather shallow suture ; the rest closely, finely and 



