5g6 Records of the Indian Muse: ni. [Vol. VIII, 



Bensonia? aborensis, n. sp. 



(Text-fig. I.) 



Locality. — Yamne Valley, Abor Hills {Capt. G. F. T. Oakes, 

 R.E.). 



Shell perforate, depressedly conoid, flattened both above and 

 below ; sculpture rather close transverse lines of growth ; colour 

 rich dark umber brown, narrowly black on peristome , internally 

 very white, with a callous on the inner side of the body whorl; 

 spire much flattened, apex showing just above the last whorl; 

 suture well impressed ; whorls 6, regularly increasing, well rounded 

 on the periphery, seasonal arrest of growth and hybernation is 

 shown by black transverse stripes of old apertures; aperture sub- 

 vertical, seniilunate ; peristome moderately thickened ; columellar 

 margin oblique. 



Size: major diameter 40 05, minor 36-0, alt. axis 145 mm. 



The generic position of this shell, a single specimen, is very 

 doubtful; its form and colouration is very noticeable I had 

 asked Captain Oakes to put up living specimens he came across 

 in bamboo tubes, " choongas ' ' as they are called in Assam. They 

 must be cut green and are easily made. A bamboo of suitable 

 diameter being selected 5 or 6 inches in length is simply cut off 

 at a knot and plugged. Specimens alive travel better in this than 

 in any box. In this instance many specimens were living when 

 the tube reached me by post. Unfortunately not enough moss 

 had been put in and the prisoners had suffered in consequence, the 

 helicoids most and among them this single shell of which the 

 animal had recently died and was unfortunately not in a state to 

 see anything of its anatomy, not even the radula. I place it in 

 Bensonia with considerable doubt, but it is the nearest genus I can 

 think of. It is such a remarkable shell, it will not be long before 

 it is found again by the first naturalist who may visit the valley of 

 the Tsanspu. 



Pseudokaliella annandalei, n. sp. 

 (Plate lii, figs. 5, 5a, 56.) 



Locality. — Abor Hills, exact locality not stated {Capt. G. F. 

 T. Oakes). 



Shell lenticular, fragile, very openly umbilicated, fringed on 

 the sharp keel, each fringe is a triangular sharply pointed layer 

 of epidermis; sculpture finely decussate, irregular transverse, fine 

 ribbing, crossed by fine close-set longitudinal striae, this is finer on 

 the lower side; colour ochraceous; spire flatly convex, low; su- 

 ture linear; whorls 6, very regularly increasing, flat above, the 

 last atcuate above at aperture; aperture widely lunate, oblique ; 

 peristome thin, sinuate on upper margin, reflected slightl)^ but 

 decidedly on the lower ; columellar margin oblique. 



Size: major diameter 17*0, minor I5'25, alt. axis 4*75 mm. 



