166* 



forward close to the last volution ; the umbilicus is of moderate 

 size, externally carinated ; operculum horny, multispiral, lamellar, 

 with a short central point within, and a thickened edge. 



Copan, Province of Guatemala in Central America. Mas. 

 Cuming. 



195. Cyclostoma funicuiatum (Tab. Suppl. xxxi. b, f. 316, 

 317), Benson, Journ. of Asiatic Society, 1838, vol. vii. p. 217. 



C. testa cylindraceo-turrita, Iseviuscula, nitida, olivaceo-fulva ; 

 spii-a obtusiuscQla ; anfractibus septem, subrotundatis, posticis 

 tenerrime striatis, ultimo ruguloso, postice striato ; sutura dis- 

 tincta, tenui ; apertura circulari ; peritremate incrassato, rotundato- 

 reflexo, subaurantiaco ; umbilico parvo, extiis carina validu ceelata 

 munito. 



Shell of a cylindrically turreted form, smooth, shining, of an 

 olivaceous fulvous colour ; spire rather obtuse, with seven shghtly 

 rounded volutions, which are very finely striated posteriorly, and 

 the last of which is rather rugulose and posteriorly striated ; 

 suture distinct and slender ; aperture circular ; peritreme thick- 

 ened, rounded and reflected, of a dull orange-colour ; umbilicus 

 small, furnished externally with a distinct embossed carina. 



Khasya Hills, India. In Mr. Benson^s and Mr. Cuming's 

 Collections. 



196. Cyclostoma PAUPERCULUM (Tab. Suppl. xxxi. b, f. 318), 

 nobis. 



C. testa cylindraceo-turrita, nitida, olivaceo-fulva ; spira obtusi- 

 uscula ; anfi'actibus sex, subrotundatis, tenerrime lineis increnienti 

 striatis (erosione nonnunquam rugulosis) ; sutura distincta, pro- 

 fundiuscula ; apertura fere circulari ; peritremate subincrassato, 

 rotundato-reflexo, prope ultimmn anfractum subfoliaceo, subinter- 

 rupto ', umbilico parvo, linea subobsoleta circumambiente. 



Shell small, cylindrically tm-reted, shining, of an oHvaceo-ful- 

 vous colour ; spire rather obtuse, with six slightly rounded volu- 

 tions, very finely striated with the lines of growth (sometimes 

 rendered slightly rugulose by erosion) ; suture distinct, rather 

 deep ; aperture nearly circular ; peritreme slightly thickened, 

 rounded, and reflected, very slightly foHaceous and interrupted 

 at the last volution ; umbilicus small, surrounded by a somewhat 

 obsolete raised line. 



Bootan. Benson. 



