MOLLUSCA OF INDIA. 109 



AusTENiA PAURHiENsis, 11. sp. (Plate XCI. figs. 2-2 c). 



Localiti/. Paurhi, Gurhwal (Lt. F. Howard, R.E.). 



Shell depressedly globose, not umbilicated ; sculpture quite 

 smooth, with irregular furrows of growth ; colour ochraceous, with 

 a slight green tint ; spire depressed ; apex scarcely raised ; suture 

 very shallow ; whorls 4, tumid, the last rapidly increasiug, 

 rounded on the periphery ; aperture nearly circular, oblique ; 

 peristome very thin ; columellar margin very weak, slightl}' reflected 

 above. 



Size: maj. diam. 13'0, min. 10"5 ; alt. axis 5 mm. 



I have compared this with specimens in my collection ; the shape 

 is more globose aud the aperture more circular than any of them. 

 Some six specimens were sent home which had been put in salt and 

 then in spirit, and although not in the best order, have been useful 

 as giving the following details of the anatomy : — ■ 



The animal (tigs. 2 6, 2 c) measures 12 mm. long. Sole of foot 

 with a central area, the sides distantly segmented. Colour grej'ish 

 ochre. The dorsal shell-lobes are sparsely spotted black. The 

 right shell-lobe has a pinkish tint, is broad from the respiratory 

 orifice, and narrowing below and posteriorly at the back of the shell 

 and joins the left shell-lobe there ; this last is a narrow reflected 

 band from the respiratory orifice, widening gradually, and on the 

 left margin gives oft' a triangular retractile tongue-shaped process, 

 also of a pinkish tint. Eight dorsal lobe is small, the left long aud 

 broad, of nearly equal breadth throughout. 



The generative organs were not at their full stage of development. 

 The amatorial organ was lai'ge and cylindrical, Avith a bluntly 

 pointed end. 



The odontophore was similar to A. gurhivahnsis in form of the 

 teeth. 



36 . 2 . 15 . 1 . 15 . 2 . 3G 

 53 . 1 . 53 



Jaw with a central projection. 



Specimens from the N.W. Himalaya of A. monticola, in perfect 

 preservation, are still needed before splitting this group of Ibyms 

 and Austenia still further, as proposed by Mr. T. D. A. Cockercll in 

 'The Nautilus,' vol. xii. no. 1, p. 10 (May 1898). 



In continuation of the remarks on Austenia jjlanospira, p. 93, 

 this species must be removed from this subgenus and placed for the 

 present in Eurychlamys. The amatorial organ, of which I give a 

 drawing, PI. XCI. fig. 4, is the chief diff"erence to be found. The 

 same extent of differentiation as I have shown on p. 69, Yol. II., 

 occurs in the genus Durgella. 



