CYATUOPOMA. 131 



Nevill, Hand List, i, 1878, p. 258; Nevill, J. A.S. B. 1, 1881, 

 p. 1-14; Fischer, Man. Conchyl. 188.5, p. 74,5 ; Kobelt & Miillendortf, 

 Naclir. Deuts. Malak. Ges' xxix, 1897, p. 11!); Svke.s, Proc. 

 Malac. Soc. iii, 1898, pp. 66, 159 ; Kobelt, Das Tierreich, Lief. 16, 

 1902, p. 218. 



Type, Cyclotus JilocinctHS, Benson. 



Eanc/e. India, Fartlier India, Ceylon, Andanians, Nicobars, 

 Seychelles. 



Animal white, with a short oval foot, undivided beneath ; small 

 blaek tentacles with eyes at base. 



Shell small, umbilicated, pyrainidal-tvirbinate or depressed tur- 

 binate, generally with spiral lirae, periostracum thick. Operculum 

 convex on the inner side, multispiral, normally truncate conoid, 

 composed of two larainte, the inner membranaceous, outer calca- 

 reous, very concave, the edges of the whorls free, occasionallv 

 beautifully ornamented. 



Subgenus CYATHOPOMA, Blanford. 



. Cyathopoma (part.), Blanford, J. A. S. B. xxx, 1861, p. 348 ; Kobelt 

 ' Sz Mollendorff, Nachr. Deuta. Malak. Ges. xxix. 1897, p. 119; id.. 

 Cat. Pnenni. 1899, p. 31; Kobelt, Das Tierreicb, Lief. 10,1902,' 

 p. 219 ; Pilsbry, Bull. Amer. Mus. Nat. Hist, xl, 1919, p. 328. 



Type, Cyclotus filocinctus. Benson. 



Bange. Southern India, Ceylon, Nicobars, Japan ; Seyclielles, 

 Belirian Congo. 



Shell small, more or less depressed, widely umbilicated, with 

 distinct spiral lirae ; peristome single or double ; opiu-ciilum with 

 raised edges to the whorls, which are often incurved towards tlie 

 centre and prettily ornamented. 



182. Cyathopoma album, Beddome. 



Cyathopoma (Jerdonia) alhunt, Beddome, P. Z. S. lS7o, p. 446, 

 p. 52, fiji". 14. 

 Cyathopoma album. Theobald, Oat. Sht-lls Brit. India, 1870, 



Addenda, p. ii ; Pfeiffer. Mon. Pnenm. Siippl. 3. 1876, y. 379. 

 Jvvdo7iia <d/Hi, .Toiisseaume, Mem. Soc. Zool. Krance, vii, 1894, 



p. 308. 

 Cyathopoma (9.. ^\\\) alhum,'Ko'he\t Sc Mollendorff, Nachr. Dents. 



" Malak. Ges. xxix, 1897, p. 119 ; id.. Oat. Pnenm. 1899, p. 31. 

 Cyathopoma {Cyathopoma) album, Kobelt, Das Tierreicb, Lief 16 

 1902, p. 219, fi?. 46. 



Original description : — " Shell widely umbilicated, depresso- 

 tui'binate, furnished with a chalky-white or whifish-brown 

 epidermis, having a minute vertical striation, which is eai-lv 

 deciduous, or only present in patches, the shell beneath being of 

 a peculiar shining white horny texture; spire coiioidal, apex 

 subacute; whorls 4-5, spirally Urate, the lowest with four fo five 



k2 



