xoDOPo^rATIAS. 161 



pronounced aud distant on last whoi-l ; colour white ; an old well- 

 grown shell ; spire long, sides tiatly convex, lining to the apex 

 which is sharp ; suture impressed ; whorls 9, flatly convex ; aper- 

 ture circular, vertical; peristome douhle, inner thickened, a slight 

 nick on the upper sutnral margin. 



"Major diameter 4*4, alt. axis 12-2 mm." 



Hah. India: Siyoni, Abor Hills {(Jakes). 



"Has much the shape of P. grandis of the Dafla Hills, but 

 has much strniger costulation." {Godwin- Austen.') 



Genus NODOPOMATIAS, nom. mut.* 



Eupomutias, Godwin-Austen, liec. Ind. Mus. viii, 1917, p. 579 (non 

 Jvupomatuts, Wagner, 1897). 



Type, Eupomatias sibbumensis, GodwiJi-Austen. 



Ranye. India : Abor Hills, 



" Shell in all respects similar to Pseudopomatias, with similar 

 costulation ; peristome double, well developed, perforate, the 

 costulation on the left side of the last «horl terminates upon a 

 strong raised keel bounding the umbilical region ; this keel 

 extends up to the peristome on the lower basal side of the 

 aperture." 



" The keel has a knotted or beaded appearance, and it would 

 seem that the mantle edge must develop a close fold, the costula- 

 tion causing an irregular thickening of the peristome as it is 

 added tn." {Clodivin- Austen.) 



232. Nodoponiatias oakesi, O'odwin-Ausfen. 



Eupoxiatias oakesi, Godwin-Austen, Rec. Ind. Mus. viii, 1917, 

 . p. 580, text-figs. 5 D, 6 B. 



Original description : — " Shell narrowl}' perforate, elongatelj 

 turreted, solid, shiny ; sculpture close regular tine ribbing, on 

 the last whorl in front only seen near suture, then becoming quite 

 smooth ; colour ruddy umber-brown in type, pale ochraceons in 

 two others ; spire elongate, sides slightly convex, apex rather 

 blunt; suture impressed; whorls 7, flatly convex; aperture 

 circular, angulate above ; peristome thickened, closely double, 

 continuous just behind on the columella margin, high up there 

 is a very strong umbilical keel much curved, which terminates 

 just behind the peristome on the lower left margin ; it shows 

 white against the brown colour of the shell, and is quite bead-like 

 and raised ; operculum horny, flat in front, multispiral, ruicleus 

 central. 



" Major diameter 3-75, alt. axis 11 mm." {Godiv in- Austen.) 



Hah. India: Abor Hills (0«/.-«.?). 



* 111 allusion to the knutted apiu'iiraiice ot the basal keel. 



