MOLLUSCA OF INDIA. 325 



flatly convex, the last subangulate on the periphery, disappearing 

 near the aperture; aperture rather widely lunate, sub^iertical ; 

 jieristome thin, slightly reflected on the columellar margin and 

 reflected (the type-specimen shows distinct varix of an old aperture). 



Size : maj. diam. 5*5 ; alt. axis 3'3 mm. 



This species had been placed in KalieUa with considerable doubt. 

 In form it approaches M. luiujloensis, G.-A., from the Xaga Hills 

 (Moll. Ind. plate xvii. fig, 3), which again is near M. Jongicmida, 

 G.-A. (plate xvii. figs. 1, 2-2 a, & 4, shells). When more is known 

 of this small group it might constitute a new sub-genus. 



Genus Psetjdokaliella. 

 (^Continued from Vol. II. p. 297.) 



PSETTDOKALIELLA DIHINGENSIS, U. Sp. (Plate CLVIII. fig. 2.) 



Locality. Dihing Valley, Eastern Assam. No. 614 B.M. 

 (M.Ogle). 



Shell turbinate, somewhat depressedly, sharply keeled ; sculpture 

 fine, even costulation on all the whorls, continuing over the keel to 

 the basal side, radiating from the umbilicus, at the keel the edge 

 is roughened ; colour dark sienna-brown ; spire half as high as the 

 diameter, apex blunt; suture impressed, a lirate edge follows it 

 from the aperture, with another finer thread above it ; whorls 6, 

 regularly increasing ; aperture semilunate, rather narrow, oblique ; 

 peristome thin ; columellar margin oblique. 



Size : maj. diam. 7'5 ; alt. axis 3'5 mm. 



A very distinctive species — only one specimen was found. 



PsETJDOKALIELLA AKHAEKSIS, n. Sp. (Plate CLVIII. fig. 3.) 



Lomiiiy. Barowli Gorge, Durrang District, Assam. No. 615 

 B.M. {Godwin- Austen). 



Shell scarcely perforate, very depressedly turbinate, sharply 

 keeled ; sculpture regular, close, rather coarse transverse ribbing, 

 crossed by 1 distant longitudinal liration, next the suture and 

 keel, and 1 or 2 finer above ; colour dark ochreous ; spire low, 

 sides flat, apex blunt ; suture moderately impressed ; whorls 5, 

 closely and regularly wound ; aperture semilunate, suboblique ; 

 peristome thin, angulate at the periphery ; columellar margin 

 oblique. 



Size: maj. diam. 7*0; alt. axis 1*25 mm. 



Only one specimen was found — in this case the form is so 

 distinctive, that it would be readily recognized when it comes to 

 be taken again. 



