1862.] 
Contributions to Indian Malacology. 
135 
Contributions to Indian Malacology* No. III. Descriptions of new 
operculated land-shells from Degu, Arahan and the Khasi hills ,— 
By William T. Blawfoei)., F. GL S. 
1. Alyo^ius Ingbami, n. s. 
Testa late umbilieata, conoideo-depressa, acute sinuato-costulata, 
albida, interdum rubello-albida, versus apicem ferruginea, vix trans- 
lucens. Spira conoidea, apice obtusula, sutura parum profunda. 
Anfr. 4 eonvexi, ultimus ad peripheriam sub compressus, ad latus 
mediocriter tumidus, ibidem confertissime costulatus, turn constric- 
tus, prope aperturam non descendens. Spatium constrietumf longi- 
tudinis mediocris, costulatum, medio tumidum; tubulum suturale 
mediocre, f peripberia3 subsequans. Apertura obliqua, eireularis : 
peristoma duplex ; externo breviter incrassato-expanso; interno ex- 
pansiusculo, continuo. Operculum fusco-corneum, multispirum, ex« 
terne perconcavum, nucleo centrali intus prominente papillari. 
millemetres inch 
Diam. maj. 6 or 0.24 
„ min. 5 0.2 
Alt. 3f 0.13 
Aper. diam. If 0.07 
Habitat prope Tongoop in Arakan. 
The present belongs to the typical group of Alycceas , according to 
Mr. Benson, and is most nearly allied to A. umbonalis, B. from 
Pegu. It is distinguished from that species by its more raised spire, 
smaller size, shorter sutural tube, and shallower suture, by its less 
oblique mouth and non-descending last whorl, and by its duplex 
slightly expanded peristome, which contrasts strongly with the 
broadly reversed lip of A, umbonalis. That species also has the 
upper whorls much more closely, but less sinuously costulated than 
are those of A. Ingrami. In the subangulation of the last whorl at 
the periphery there is some resemblance to the little Thayet Myo A. 
* My brother having left India, I have no longer the advantage of his co¬ 
operation in the publication of these “ contributions.” In consequence of hia 
absence, I fear that I shall be unable in future to add. drawings of the shells 
described. 
f By Spatium comtrictum or strictura in these descriptions of Alycati, the 
whole constricted space from the peristome to the origin oi the sutural tube is 
to be understood. 
T 
