ALYCAEUS §. 8. 55 



39. A. cresaiaVatiis BenHon. -f 277. 



„T. umbilicata, depresso-turbinata, dense oblique costu- 

 lata ; spira conoidea , sutura prof undiuscula , apice papillari ; 

 anfr. 4 convexis, ultimo rotundato, ad latus inflato, eo costulis 

 confertioribus ornato, tum juxta peristoma breviter constricto, 

 laevi, tubulo suturali elongato non procul ab apertura oriente 

 munito , apertura vix obliqua, circulari; peristomatis labro 

 subduplici incrassato, exteriore reflexo , interiore crenulato, 

 quadriplicato aperturam vix coarctante, labio slmplici, tenui, 

 marginibus callo crasso prominente junctis; umbilico profundo, 

 margine rotundato. — Operc? — Diam. maj. 4, min. 8^3, 

 axis 3 mill.''' (B. ) 



xliycaeus crenulaius Bens. in Ann. and Mag. nat. hist. 3d. ser. III. 

 (Mart. 1859) p. 180. 

 Habitat in valle Runofun. 



VL ? Opisthostoma Blanford. 



„Testa operculata ? Anfractibns aplcalibus obliquiter de- 

 flexis, anfractu ultimo constricto, delnde inflato, denique sini- 

 strorsim ascendente, anfractibus superioribus contiguo ; aper- 

 tura reversa, rotundata, continua; peristomate duplicato." 

 OpisiliGSioma W. T. ^ H. /''. £f/aw/br(/ Journ. Asiat. Soc. Beng. XXIX. 

 1861. p. 121; Contrib, to Ind. Malac. I. p 5. 

 „Noviim gcnus Operculatorum?, inter Alycaeum et Diplommatinam 

 medium." (Bl.) Cf. Duhrn in Malak. Bl. X. 1863. p. 39, et W. Blanford 

 in Ann. and Mag. nat. hist. Jun. 1864. 



Species unica: 



1. O. ]¥ilgiriea Blanford. f 



„Testa minima, truncate pupiformis, anguste umbilicata; 

 spira irregulari, apice obtusa, obllqua, sutura profunda ; costu- 

 lata, interspatils minutissime deeu.ssatis, alblda, translucens. 

 Anfractus rotundati, 5, quorum duo piimi obliquiter contorti ; 

 ultimus constrictus, deinde inflatus, refractus, ascendcns, denl- 

 que sinistrorsus, anfractum penultimum contlngens. Apertura 

 subobliqua, superne versata, orblcularis. Perlstoma continuum, 

 incrassatum, duplicatum. — Diam. maj. 1, 3, alt. 1, 1 mill." (Bl.) 



