alyc',i:l"s. 253 



Original description: — "Testa umbiliciita, coiioideo-depressa, 

 laevigata, iiitida, ad ventrieiilum uiinutissinie, ad umbilic-uin crasse 

 striata, liyalina; spira conoidea,apice ()btusiusculo,sutura profunda; 

 anlractibus -A convexiusculis, ultimo couipres.se rotundato, turn 

 tutnido, tubuliiui mediocrem gereute, tunc fossiculato-constricto, 

 strictura crista recunibeiite, demuinqiie area planata ab apertura 

 separata ; apertura obliqua, .superne arcuatim proinineiite, 

 peristomate duplici, valde incrassato-reflt^xo, iiitus superne ad 

 angulum et infra ad basin leviter emargiuato ; umbilico profundo. 

 Operc. ? 



" Diani. major 2|, minor H, axis 1| mill." 



Eah. India : liiuigun Valley, ISikliim {Blanford) ; Darjeeliug 

 {Nevill). 



" Its affinities are with the Khasia A. Jiehes; but it is perfectly 

 distinct in colour, smaller size, sculpture, narrower constriction 

 behind the ridge, narrower umbilicus, and in the eraargination 

 visible within tlie aperture at the lower part." (Benson.) 



(374. Alycaeiis glaber, lilanford. 



Alijccrns ylfdicr, liliuiford, J. A. S. B. xxxiv, part 2, 1865, p. 84; 



Haiiley & Theobald, Conch. Tnd. 1874, pi. 97, tigs. 8-10 ; PfeifYer, 



Mon. Puemu. tSuppl. 3, J 875, p. GO ; Theobald, Cat. Shells Brit. 



India, 1876, p. o9; 8owerby, in Reeve, Conch. Icon, xx, 1877, 



Ali/ccetfs, pi. 4, fig-. 31 ; Nevill, Hand List, i, 1878, p. 292 ; 



Godwin- Austen, Land & Freshw. Moll. India, ii, 1914, p. 418. 



pi. 151, tig. 1. ^ 



Ali/caeus {Chara.v) fflaber, Kobelt & Molleudorft", Naclir. Dents. 



Malak. Ges. xxx, 1898, p. 129 ; id., Cat. Pneum. 1899, p. 49. 

 Alt/cams {Biclnirux) ylaber, Kobelt, Das Tierreich, Lief. 16, 1902 



p. 371. 



Original description : — " Shell broadly umbilicated, conoidlv 

 depresi^ed, solid, reddish white, the upper whorls darker, rather 

 dull in lustre, smooth, except at the swollen portion of the last 

 whorl, which is very finely and closely costulated. Spire depre.'^sly 

 conoid; apex rather obtuse; suture impressed. Whorls 4, 

 convex, the last obsoletely subangulate at the periphery, moderately 

 swollen at the side, then constricted, descending a little near the 

 mouth. Constriction of moderate length, smooth, slightly 

 swollen in the middle. Sutural tube of moderate lengtli. Aperture 

 diagonal, circular; peristome more or less distinctly duplex, 

 thickened, moderately expanded. Operculum dark coloured, 

 horny, externally concave, internally convex, with a prominent 

 centi'al nucleus. 



" Major diameter 7|, minor ditto 6, axis 4^ millim." 



Hub. Burma : Akyab, Arakan (Blanford). 



"This species closely re.sembles A. inr/rami, AV. Blanf., for 

 which I for some time mistook it, but it is distinguished by the 

 absence of any sculpture on the upper whorls, and also by the 

 jnore oblique mouth." (Blanford.) 



