344 LAND AND FRESHWATER 



ridge of rer/ular hreadtli ; aperture circidar, obtusely angulate on 

 upper inner margin ; peristome simple, double, not reflected ; 

 operculum hlaclc, midtispiral, co»cave, whorls rottgh ctyid raised above 

 each other. 



Size: maj. diam. 5 ; alt. axis 2-75 mm. 



Only cue example occurred on this peak, which is so conspicuous 

 from the terai at the base of the hills ; its characters are so distinct 

 from species known to me that I name it, as I feel sure it will be 

 found again. 



Alyctitjs stylifeb, Bs. (Plate CXXXITI. figs. 2-2 c.) No. 1255 

 B.M. Coll. 



Benson, A. M. N. H. ser. 2, vol. ix. March 1857, p. 204 ; 

 Pfeiti'sr, Mon. Pneum. vol. ii, p. 37 ; Novit. vol. i. pi. 35, figs. 2-1- 

 27; Hanley & Theob. Conch. Ind. 1870, p. 38, pi. xcii. figs. 1,4; 

 Theobald, Cat. Supp. p. 30 ; G. Neviil, Hand-list, i. 1878, p. 294. 



Original description : — " Testa umhilicata, depressa., confertim 

 sfriatula, ad spatimn infJatum confertissime acute costidata, nitente, 

 albida ; spira brevi, mvcronata, apice obirisnlo, sitiura profunda; 

 anfractibus 4 convexis, idtiwo iione strictwam gibho, tubidam viedio- 

 crem r/erenie, medio striclurce costam p>roniinentem (intus concavum) 

 ea'hihente ; apertura obliqna., s^dmrcidari, irregularis sinuata, peri- 

 stomate simplici, incrassato-rejlexo. 



" Operc. ? 



" Diam. maj. 5|, min. 4| ; axis 31 mill. 



" Habitat ad Darjiling. Teste H. Blanford. 



" The rib behind the outer lip corresponds with a deep sulcus 

 within the aperture. A similar feature is observable in the little 

 Boruean Alycceus spiraceUam, A. & li., and in the following species 

 (hehes). The single specimen from which the description above 

 given was made is a dead and discoloured shell. The two Ali/ceei 

 previously known to inhabit Darjiling are of the pupiform type '*' 



The example figured is not from the typical locality Darjiling, 

 but from Damsangin the Daling District, east of the Teesta, known 

 as Western Bhutan until it came under our rule after the Bhutan 

 campaign iu 1864-GG. I am able to compare it with a typical 

 specimen, No. 2503 B.M., given to me by Henry Blanford its dis- 

 coverer ; they are not absolutely identical. The Darjiling form ia 

 the largest, the sutural tube is longer, and the costulation next it 

 far coarser. 



Size of Damsang specimen : major diam. 5-0 ; alt. axis 2*5 mill. 



Dr. 0. von MollendorfF described the following under a MS. name 

 of G. Nevill's :— 



Altc^us (Charax) stjbhtjmilis, Nev. 



Nachrbl. Deutsch. Malak. Ges., March-April 1897, p. 41. 



Original description : — " T. angnsle umbilicata, depresso-globosa, 

 solldiila, suhpellucida, sjibtillfer striaiida, costulis valde distantihts 

 deciduis sculpta. Spira convexo-conoidea sursinn rubella. Anjr. 



