352 CYCL0PH0RID.5. 



coLifei'tis nonnunquam obsoletis circuuidata, caruea vel albido- 

 carnea ; apice plenimque uigro ; spira conoideo-couvexa ; sutura 

 impressa. Anfr. 4| couvexi, ultiinus teres, antice descendens, 

 variceni iinperfectuin interdum pone aperturaui gerens. Apertura 

 fere veiticalis, rotunda ; peristoma obtusmn, niarginibus disjunctis, 

 externo antice arcuato, basali expansiusculo, columellari sub-late 

 expanse, uinbilicum omnino callo conipleiite. Operc. teslaceum, 

 intus uienibranaceum, paucispirale, niargine interne anfractuuni 

 elevato, nueleo excentrico. 



"Diain. maj. 12, min. 11, axis 9, ap. diain. 6 mm.'' 



Fig. 39. — Otopoiim hlnduorum. 



Hah. India: Kathiawar (^/feoJaZf?)- 



''From Cyclostoma {Otopoma) clausunt, Sow., to whicb Mr. Benson 

 referred tbe present form, it is distinguished by being much 

 smoother, witb a less excavated umbilical region and a higher 

 spire. 



" It is tbe most eastern form of the sub-genus known, other 

 forms assigned to Otojioma found in tbe Indian and Burmese 

 areas having been shewn to belong to the Cydophorida'.'' 

 (Blanford.) 



The specimen now figured is in the British Museum, Cuming 

 collection. It is larger and more elevated than the type, 

 measuring : 13-5 x 12 x 12-25 mm. 



Genus CYCLOTOPSIS, Blanford. 



Cyclotopsis, Blanford, A. M. M. II. ser. ?,, xiii, 1864, p. 447 ; Pfeiffer, 

 Men. Pneum. Suppl. 2, 1865, p. Ill; Suppl. 3, 1875, p. 161; 

 Fischer, Mau. Concbyl. 1885, p. 747 ; Kobelt & Mullend^rff, 

 Nachr. Dents. Malak. Ges. xxx, 1898, p. 156; id., Cat. Pneum. 

 1899, p. 76. 

 Type, Cyclostoma semistriatum, Sowerby. 



Range. India. 



iShell widely uuibilicate, depressed or depressed-turbinate, 

 furnished with spiral lirse ; aperture subrotundate ; peristome 

 thin ; operculum multispiral, double, the inner membranous, the 

 outer calcareous, the edges raised. 



543. Cyclotopsis montana, Pfeiffer. 



C'i/closto)iiu {Ci/clotus?) vw7itanuin, Pfeiffer, Proc. Zool. Soc. 1854, 



■p. 300. 

 C'yclotus montanus, Pfeiffer, Men. Pneum. Suppl. 1, 1858, p. 23; 



Reeve, Conch. Icon, xiv, 1863, Cyelnfus, pi. 9, lig. 58. 

 Ct/closto7na {Cyclotopsis) montuimm, Nevill, Hand List, i, 1878, 

 ■ p. 308. 



