858 CYCLOPHORlD.t:. 



noil nitente albida; spira acuininato-coiiica, apice acutiusculo, 

 sutura profunda ; anfractibus 6, coiivexis, ultimo ad peripheriam 

 et circa unibilicum subcarinato, carina umbilicali extus linea 

 iuipressa notata ; apertura subobliqua, angulato-ovata, spiram 

 aequante; peristomate recto, acuto, niai'ginibu.s reniotioribus callo 

 tenui junctis ; coluniellari subincrassato. Operc. ? 



" Long. 3, diam. 2.| mill." (Benson.) 



Hub. Andaman Is. (Theohald). 



552. Omphalotropis sordida, Frauenfeld. 



Assiminea sordida fEebu), Frauenfeld, Verb. K. K. zool.-bot. Ges. 



Wien, xiii, 18(33,~p. 212. 

 07»pJialofropis sordida, Morcb, Journ. Concbyl. xx, 1872, p. 318 ; 



id., op. cit. xxiv, 187G, p. 362. 



Orif/inal descrij^tioii (in German): — "Shell turbinate, acute, 

 rather solid, dull, opaque, brown, with two indistinct clear spiral 

 bands ; whorls 5-6, increasing gradually, flattened, suture very 

 slightly impressed ; last whorl suddenly descending. Aperture 

 moderately, the upper part rather prominently angular. Margins 

 not united, acute, columellar tliickened, somewhat reflected, leaving 

 only a narrow umbilical perforation. 



" Length 4-4, width 3 mm." {Fratienfdd.) 



Hub. Nicobar Is. : Sambelong (HeinJiardt). 



GeiHTs REALIA, Grm/. 



Realia, Gray, Synopsis Cont. Brit. Mus. Ed. 42, 1840, first issue 

 p. 149 (nom. nud.); id., Ed. 44, 1842, p. 91 (noni. nud.); id.,rrnc. 

 Zool. Soc. 1847, p. 182 (nom. nud.) ; id., iSomencl. Moll. Brit. Mus. 

 part 1, Cyclopboridte, 1850, p. 03 ; I'feiffer, Zeits. Malak. viii, 185] , 

 p. 17o; "Gray, Cat. Pbaneropo. Brit. Mus. 1852, p. 217; Pfeiffer, 

 Men. Pneum! 1852, p. 305 ; Adams, Gen. Bee. ]Moll. ii, 1856, p. 299 

 (as subgenus of Hydrocciia) ; Pfeiffer, Men. Pneum. Suppl. 1, 

 1858, p. 153; id., Suppl. 2, 1865, p. 170; id., Suppl. 3, 1875, 

 p. 207 ( + Omjjhalotrojns) ; Cooke, Cambridge Nat. Hist. iii,1895, 

 p. 414 (as subgenus of Onip/ialotropis) ; Kobelt & Mullendorff, 

 Nacbr. Ueuts. Malak. Ges. xxx, 1898, p. 148 ; id., Cat. Pneum. 

 1899, p. 68. 



Type, liealia egea, Gray. 



Mange. Andaman Is., New Zealand, Marquesas. 



Shell perforate or narrowly umbilicated, turreted or glohose- 

 turbinate, keeled around the pei'foration. Aperture ovate, peri- 

 stome continuous, straight or expanded. Operculum thin, corneous, 

 paucispirai. 



553, Realia decussata, Blanford. 



Realia decussata, Blanford, J. A. S. B. xlix, part 2, 1880, p. 218. 



Original description :— " Shell perforate, ovately conical, rather 

 thin, finely marked with oblique striae of growth and minute 



