276 LAND AND FIlESinVATfil? 



EuAUSTENiA LUMSDE>^i, n. sp. (Plate CXXUI. figs. 1, 1 a.) 



Locali/)f. Kuram Valley, N.W. frontier, Punjab (21. J. 0(/Ie). 



[Shell ovoid, depressed, scarcely perforate, hidden by callus, 

 solid ; sculpture, jierfectly smooth and shining surface ; colour 

 of fresh shells unkuown, all the specimens are milky m hite atid 

 bleached, most of them tilled and covered with fine mud such as 

 that of irrigated fields ; spire low, very flatly conoid, apex very 

 slightly raised above the last whorl ; suture impressed ; whorls 4, 

 increasing rather rapidly, the last large and ample ; ai)erture very 

 broadly flatly lunate, very oblique ; peristome thin, sinuate near 

 the inner upper angle; columellar margin not thickened, rounded, 

 reflected into a callus, covering the peft'oration. 



The animal is unknown ; the shell-character is that of the genus 

 Euaustenia, and if on dissection it proves to belong to it, the 

 Ivuram Valley will be its most westerly extension. 



nun. mm. mm. 



Size, of spec, figured : maj. diam. li)'(i, min. 16"0, alt. axis 6"75 

 „ of largest : „ 20-^5, „ 17"0, „ 8-6 



I have pleasure in naming this species after General Sir 

 Peter Lumsden, G.C.B., C.S.I., who, when in the Quartermaster- 

 General's Department at Peshawar, was the first officer to make a 

 Plane Table Survey of the Kuram A^alley, the fair map of which 

 he gave me to draw and compile prior to its publication in the 

 Surveyor-General's office, Calcutta, in 185(i, and which led to 

 my own appointment to the Kashmir Survey Party in 1857. 



Subfamily Helicakionin^. 



Moll. Ind., Vol. I. p. 140, Plate XLI. 



In this work as far as Fart X. 1907, the genus Anstenia of 

 Geoffroy Nevill has had included in it a large number of species, 

 many of which differ very much in form of the shell from the 

 type of the genus, viz. A. gigaa, Bs., while considerable similarity 

 occurs in the internal anatomy. 



The anatomy of those that had been examined was not at all 

 like that of Australian species constituting true 11 eUc avion. 

 With the preparation of the volume ou Mollusca of the 'Pauna 

 of British India,' published in June 1908, the time had arrived to 

 make an atteuipt to impro\e classification based on the anatomical 

 investigations of previous years, and it became necessary to restrict 

 Austema to forms like the type shell, while for the shells hitherto 

 included in it, differing in various degrees in their shell characters 

 and internal del ail, the following generic divisions were adopted : — 



1. Crjn>fai(sf€ni<i, with 10 species. 



C sv(ri>7e(i tvpe, ovntn, httmtconclia, remicosa, fJin-raiu/cnsis, 

 zemocnaii!, silcharensis, glohosu., bcnsoni, iianchdcnsis. 



