KALIELLA. 271 



is very much smaller, the spire less conoid, and much more 

 rounded below. The sculpture is similar to that of Kaliella. 



Nothing is known of the anatomy of these very minute 

 species.] 



434. Kaliella? nongsteinensis, Godwin- Austen, Mol. Ind. i, 1883, 

 p. 72, pi. 16, tig. 2 (shell). 



Shell imperforate, conoid, subtrochiform, under a powerful 

 microscope costulately striate, pale brownish ; spire conoidal, 

 rather high, sides convex, apex obtuse, suture shallow ; whorls 8, 

 closely wound, slightly convex, the last carinate, projecting in the 

 middle around the umbilical region, rather flat outside near the 

 keel ; aperture narrow, rectangular, oblique to the axis of the shell ; 

 peristome ? 



Diam. 2, height 1*7 mm. 



Hob. Maotherichan Peak, N. Khasi. 



[435. Kaliella bhutanensis, Godwin-Austen, Mol. Ind. ii, 1907, p. 196, 

 pi. 103, fig. 7 (shell ). 



Locality. Dam sang, Daling District, Western Bhutan Hills. 



Original description: Shell conical, perforate, flatly rounded 

 on base, keeled ; sculpture microscopic, transverse, irregular lines 

 of growth, these are well shown on the basal side ; colour pale 

 dull ochreous ; spire high, with convex sides, apex blunt ; suture 

 TQry shallow ; whorls 8, closely wound, flat-sided ; aperture 

 narrowly quadrate; peristome thin, columellar margin short, 

 nearly vertical. 



Size : maj. diam. 2*23, alt. axis 1*6 mm. 



Its nearest ally is K. nongsteinensis, of the North-western Khasi 

 Hills ; but it is broader on the keel in proportion to height of 

 spire and much flatter on the base.] 



436. Kaliella? tirutana, Godwin-Austen, Mol Ind. i, 1883, p. 72, 

 pi. 16, figs. 4, 5 (shell). 



Shell imperforate, conoidal, with the area below the carination 

 prominent, smooth, whitish horny (? bleached) ; spire conoidal, 

 sides slightly convex, apex obtuse, suture shallow; whorls 6, 

 convex, closely wound, narrow, the last keeled, flattened, but 

 inclined below keel, and projecting considerably in the umbilical 

 region ; aperture narrow across, but long, almost rectangular, and 

 elongate in a line oblique to the axis ; peristome with columellar 

 margin straight, oblique, and reflected. 



Diam. 1J, height 1| mm. 



This resembles nongsteinensis, but is smaller, and has fewer 

 whorls and a less convex spire. It has the same rectangular 

 mouth inclined to the axis of the shell. 



