1880.] W. T. Bhinfovdi.—Gonfriliitions to Indian Malacology. 187 



3. Hemiplecta tinostoma, sp. Bov., Plate III, Fig. 1. 



Testa angxiiste umhilicata, convexo-depressa, confertim striis sjyiralihtis 

 minutis lineisque incrementi decussata ; fulva, lined pallida, angustd supra 

 periplieriam, alterd fused infra, cincta ; suhtus pallidior, Icevior, nitidula. 

 Spira convexa, apice oltuso, suturd primum lineari, ant ice impressd. Anfr. 

 5, planiusculi, sensim accrescentes ; ultimiis convexior, antice latior stih- 

 ascendens, ad fcriplieriam angiilatus, sultus convcxus, aperturam versics 

 planulatus. Apertura ohliqua, multo latior quam alta, lunato-ohlonga, 

 intus albescens, fascia periplierali albidd conspicud ; peristomatis margini- 

 Jjus subparallelis, callo tenui junctis, hasali alho, recto, crassiusculo, longe 

 oJjliquo, ad umbilicum suhreflexo, supero arcuato, leviter inflexo. JDiam. 

 maj. 50, min. 39, axis 21 mm. ; apert. 28 mm. lata, 18 oblique alta. 



Hab. In montibus ' Tinnevellj Ghats' dictis Indise meridioualis, ad 

 latus orientale provincite Travancore (ZT. Beddome). 



Shell narrowly umLilicate, conveslj depressed, closely decussated with 

 fine spiral strise and lines of growth, smoother beneath, yellowish brown 

 above, paler below, surrounded by a narrow pale line just above the peri- 

 phery and a dark line below. Spire convex, apex obtuse ; suture at first 

 flat, becoming impressed towards the mouth. Whorls 5, the first nearly 

 flat ; the last convex above, becoming more so towards the aperture, where 

 it is rather broader and rises a little ; below, the shell is convex, but flatten- 

 ed near the mouth, and the greater breadth of the last whorl near the 

 aperture is more conspicuous than above. Aperture oblique, much wider 

 than high, brownish kvid^ with a whitish enamel Avithin, the pale peripheral 

 band being conspicuous ; peristome slightly sinuate, the upper and lower 

 margins nearly parallel, the former slightly inflexed, the latter oblique, 

 straight, white, and somewhat thicker than tlie other mai'gins. Major 

 diameter 2 inclies, minor 1-55, axis 0'85 ; breadth of aperture I'l, height' 

 (measured obliquely) 0'72. 



This shell somewhat resembles S. hasilessa and S. leddomei, but 

 differs from both in the peculiar form of the aperture and the great flatten- 

 ing of the last whorl beneath. The fine, decussated, almost granulate 

 sculpture of the present species, and the less rapid increase of the last 

 whorls would serve to distinguish it from either of the forms named, even 

 if the peculiar shape of the aperture proved to be an individual peculiari- 

 ty' — not a very probable supposition, as tliere is a faint approach to the 

 same change of form in the last whorl in S. hasilessa.. 



But a single specimen has been procured by Col. H. Beddome, and 

 entrusted to me for description. This shell was obtained on the Tin- 

 jievelly Ghats, between Tinnevelly and Travancore, at a spot east of Papa- 

 nassam, and at an elevation of 5000 feet. 



