296 CYCL0rH01lID,£. 



Nicida subovata, Theobald. Cat. Shells Brit. India, 1876, Addenda, 

 p. ii ; Kobelt & Mollendorff, Nachr. Deuts. Malak. Ges. xxx, 

 1898, p. 1.30 ; id., Cat. Pneum. 1899, p. 50 ; Kobelt, Das Tierreich, 

 Lief. 16, 1902, p. 385. 



Original descrijjtion : — "Shell not rimate, conieo-ovate, smooth, 

 thin, shining, yellowish white, furnished with a subobsolete, very 

 minute, oblique striation ; whorls 6, convex, the penultimate the 

 largest, the four upper ones gradually tapering, the apical one 

 obtuse, the lowest whorl furnished with a rather prominent basal 

 keel ; aperture obliquely oblong ; peristome single, not continuous 

 round the penultimate whorl : total length Jy inch [2-25 mm.]. 



"Allied to Nicida nitiduda, B\anf., hut differing in its single 

 peristome and more prominent basal keel." {Beddome.) 



Hah. India: South Cannva (Beddome). 



Genus OPISTHOSTOMA, Blanford. 



Opisthostoma, Blanford, J. A. S. B. xxix, 1861, p. 121: Dohrn, 

 Malak. Bl. x, 1863, p. 39; Pfeiffer, Mou. Pneum. Suppl. 2, 1865, 

 p. 55; Blanford, Proc. Zool. Soc. 1866, p. 448; id., A. M. N. H. 

 ser. 3, xix, 1867, p. 305; Stoliczka, .1. A. S. B. xl, part 2, 1871, 

 p. 157 ; Nevill, Hand List, i, 1878, p. 284 ; Crosse, Journ. 

 Conchyl. xxvii, 1879, p. 193: Fischer, Man. Couchyl. 1885, 

 p. 740 ; Ancey, Bull. Soc. Malac. France, iv, 1887J p. 273 ; 

 Kobelt & MoliendorfF, Nachr, Deuts. Malak. Ges. xxx, 1898, 

 p. 134; id.. Cat. Pneum. 1899, p. 54; Kobelt, Das Tierreich, 

 Lief. 16, 1902, p. 412 



Type, Oj^y'isthoKtoma nilgiricum, Blanford. 



Range. Southern India, Malacca, Borneo. 



Shell pupoicl, narrowly umliilicated; last whorl constricted and 

 turned backwards and upwards at an acute angle, when it becomes 

 inflated, and either attached to the penultimate whorl or solute ; 

 peristome double; operculum thin, corneous, composed of few 

 whorls. 



453. Opisthostoma deccanense, Beddome. 



Opist/tostoma decccoioise. Beddome, P. Z. S. 1875, p. 444, pi. 52. 



figs. 10, 11 ; Theobald', Cat. Shells Brit. India, 1876, Addenda, 



p. ii; Pfeiffer, Alon. Pneum. Suppl. 3, 1876, p. 392; Nevill. 



Hand List, i, 1878, p. 284 ; Crosse, Jomn. Conchyl. xxvii. 



1879, p. 196; Ancey, Bull. Soc. Malac. France, iv, 1887, p. 274. 

 Opisthostotna dekkanense, Theobald, Cat. Shells Brit. India, 1876, 



p. 43. 

 Opisthostoma {Euopisthostoma) deccanense, Kobelt & Miillendorff', 



Nachr. Deuts. Malak. Ges. xxx, 1898, p. 134 ; id.. Cat. Pneum. 



1899, p. 54. 

 Opisthostoma (Opisthostoma) decca^iense, Kobelt, Das Tierreich, 



Lief. 16, 1902, p. 412. 



Original description : — " Shell irregularly rhomboidal, pale pink, 

 with an oblique rather distant costulation, prominent on the lowest 



