112 ZOOTECUS. 



columellar margin subvertical, narrowly refiexed, overhang- 

 ing. Length 16, diarn. 6, aperture 5 x 3% mm. (Kurr). 



Agra (Munich Museum). 



Bulimus agrensis KURR, Malak. Bl. ii, 1855, p. 107. PFR., 

 Novit. Conch, i, p. 57, pi. 16, f. 9, 10; Monogr. iv, p. 463- 

 HANLEY & THEOBALD, Conch. Indica pi. 23, f. 1. 



I have not seen this form, which seems to differ from in- 

 sularis by the smooth surface ; yet I think it should probably 

 be ranked as a subspecies of the wide-spread insularis. 

 Hanley figures a more tapering form than the type figured 

 by Pf eiffer. 



B. chion Pfr. (PI. 26, fig. 32). Shell perforate, oblong, 

 solid, striatulate, white. Spire long, terminating in a some- 

 what acute cone. Whorls 7 to 8, moderately convex, the last 

 a little more than one-third the total length, somewhat as- 

 cending in front, the base rounded. Aperture vertical, ovate- 

 lunar; peristome calloused, the margins joined by a callus, 

 columellar margin short, somewhat straightened, dilated. 

 Length 12, diarn. 5.5, oblique alt. of aperture 4.33, width 

 3 mm. (Pfr.). 



Mouth of the Indus river and in the Punjaub (Shiplay), in 

 Cuming Coll.). 



Bulimus chion PFR., P. Z. S. 1856, p. 332; Monogr. iv, p. 

 463. HANLEY & THEOB., Conch. Indica p. 11, pi. 22, f. 1.- 

 Rumina chion Pfr., ANCEY, Bull. Soc. Malac. France iii, 

 1883, p. 60. 



Bulimus estellus Benson. (PI. 26, fig. 29). Shell narrowly 

 perforate, oblong, cylindric, rather remotely grooved spirally, 

 the intervals between grooves being very closely rib-striate; 

 whitish ; spire cylindric, the apex conic, rather acute ; suture 

 impressed; whorls 8, slightly convex, the last ascending in 

 front, about one-third the length of the shell, the base slightly 

 compressed around the perforation. Aperture vertical, an- 

 gulate-oval ; peristome obtuse, the columellar margin vertical, 

 thickened and refiexed. Length 18, diam. 6 mm. (Bens.) . 



India: in the district of Sind (Col. "W. E. Baker). 



B. estellus BENS., Ann. and Mag. N. H. (2), xix, April, 



