2S8 Ci'CLOrHOKlD.I. 



Khasi Hills ; but on placing the two side by side, there is 

 considerable difference in its size, longer sntural tube, aperture 

 not so circular and the peristome larger, so much more tliickened." 

 (Godiviu-Aiisten.) 



435. Alycseus luyorensis, Godivin- Austen. 



Ab/cceus luyorensis, Godwin-Austen, Land it Freshw. Moll. India, 

 li, 1914, p. 365, pi. 157, figs. 6, 6 a. 



Original description : — " Shell globosely turbinate, umbilicated ; 

 sculpture: very fine close regular eostulatiou next the suture, very 

 fine on whorls above, hardly seen on apical ; colour dull white 

 above, pale ochraceous on the swollen portion of the last whorl ; 

 spire moderately high ; suture moderately impressed, sutural tube 

 moderately long ; whorls 4^, constriction short, no swelling 

 between sutural tube and aperture ; aperture circular ; peristome 

 double, very slightly reflected, openly and expandedly crenate ; 

 columellar margin curving vertically ; operculum slightly concave 

 in front, distantly spiral. 



" Major diam. 6*8 ; alt, axis 4 mm." 



Hah. India : Luyor, Abor Hills {Oal-es). 



" The form and sculpture distinguishes this shell from the 

 other crenulated species obtained in the valley of the T-^anspu." 

 ( Godioin- Austen.) 



436. Alycseus magnificus, Godwin-Austen. 



Ali/cmis {liaptomjihalus) wacpiifcus, Godwin-Austen, Land k. 

 Freshw. Moll. India, ii, 1914, p. 36G, pi. 156, figs. 1, 1 «, 1 h. 



Oriqlnul description : — " Shell very openly umbilicated, bordered 

 by a distinct keel, very globosely conoid ; sculpture on the upper 

 whorls, and as far as the end of the long sutural tube there is 

 distant strong costulation, thence for the length of the tube it is 

 extremely fine and close ; colour white, shell old ; spii-e moderately 

 high, apex small, somewhat depressed; suture impressed; whorls 4|, 

 tumid, the constriction is sudden and close to the base of the 

 sutural tube, it there expands considerably towards the aperture, 

 commencing with a high ridge well raised, and this again by 

 another broader and more rounded, which merges into the very 

 broad expanded wavy peristome ; aperture ovate, subangulate 

 both above and below ; peristome strongly crenulated, with five 

 indentations. 



" Major diam. 4-25 ; alt. axis 1-7 mm." 



Hcd). India : Yamne Valley, Abor Hills (OaJces). 



" This is a very beautiful species. The sharp, well defined keel 

 around the umbilicus is a character quite new to me in this 

 genus, one which has led me to place it in a new subgenus. In 

 the very fine costulation on the swollen portion of the last whorl 

 it is similar to A. aborensis.'" {God win- Austen.) 



