SIIALA. 233- 



"The sculpture is not visil)U^ until the periostracum has been 

 rubbed oil." 



b. Carinate and umbilicated. 



350. Sitala? balliana, Godioin-Austen {Nevill, MS.), Mol. Iml. i, 



1882, p. 74, pi. 15, fig. 2 (shell) ; ii, 1898, p. 48. 



Shell umbilicated, trochiform, obliquely, finely, regularly striated, 

 spirally costulate, with 4 to 5 strong ribs on each whorl, umber- 

 brown ; spire conical, not high, apex blunt, sides slightly convex, 

 suture impressed ; \^ horls 5, convex, the last with a raised keel, 

 slightly convex beneath ; aperture subquadraugular, oblique ; peri- 

 stome slightly thickened, columelkvr margin oblique, becoming 

 vertical above, slightly reflected. 



Diam. 3.^, height 2| mm. 



Hub. Hills near Gaujam, Madras Presidency {Ball). 



[This is No. 103, Nanina {Microcystis), n. sp., INTev. Hand-1. i, 

 1878, p. 41, type.] 



C. Rounded or sidjaiir/ulate. 



351. Sitala? phulongensis, Godiviy^-Amfen, Mol Ind. i, 1882, p. 34, 



pi. 10, tig. 4 (shell) ; id. ii, 1898, p. 48. 



Shell narrowly perforate, elongately conical, subtui'reted, spirally 

 Urate, with 6 to 7 longitudinal ribs on each whorl, obliquely 

 striated, Avith radiating and close concentric striation on the base, 

 brownish horny ; spire rather high, conical, sides slightly convex, 

 suture impressed ; whorls 54. convex, the last not distinctly 

 carinate, convex beneath ; aperture oblique, almost semicircular ; 

 peristome thin, columellar margin vertical, slightly reflected. 



Diam. 2, height 2*25 mm. 



Hah. Khasi Hills. Cherra Pungi, and Phulong. 



This is higher in tbe spire than most of its allies. The lingual 

 ribbon resembles that of Dvrgella : it has a minute rhachidian tooth 

 and a great number of multicuspid laterals, all similar; the jaw, 

 too, is almost straight. 



\_S. infida and attegia approach Dunjella in the form of the lateral 

 teeth, only they have from 7 to 5 central teeth on broad plates.] 



352. Sitala? limata, Godicin- Austen, Mul. Ind. i, 1882. p. 34, pi. 10, 



lig. 9 (shell). 



Shell subperforate, elongately subtrochiform, finely spirally 

 lirate, having about 6 longitudinal ribs on last whorl, closely 

 concentrically striated on base, bro\\nish horny ; spire conical, 

 sides convex, apex blunt, suture shghtly impressed ; whorls 5, 

 convex, the last not carinate, convex beneath ; aperture vertical, 

 subquadrately semicircular ; peristome thin, columellar margin 

 vertical, slightly thickened and reflected. 



Major diam. 1|, height 1| mm. 



Hah. Thamandeva, baseof Arakan Eauge, Basseiu District, Pegu 

 {W. T. Blanford). 



