MACUOCnLAMYS. 129 



thin, pale yellowish to rufescent horny, not polished above, more 

 so beneath, transversely striated and with subobsolete rather dis- 

 tant longitudinal (spiral) lines, and obliquely somewhat closely 

 irregularly and flexuously rugate abo\e, faintly decussated and 

 much smoother below; spire conoidal, the sides convex, apex 

 obtuse, suture almost flat ; whorls '), flatly convex above, the 

 last rather broader, bluntly angulate at the ])eriphery, slightly 

 tumid beneath; aperture oblique, subovately lunate: "peristome 

 thin, in one plane, columellar marfjin curved, scarcely vertical 

 above and briefly but broadly reflected, partly concealing the per- 

 foration. 



Major diam. 18, min. IG, height 10 mm. 



Hah. South Andaman. 



Distinguished by its peculiar wrinkled surface. By this young 

 specimens may be separated from 31. 2>seudaulo2ns, which they 

 otherwise resemble. 



207. Macrochlamys ? perinconspiena, Godwin- Austeti {Nevill, MS.), 



A. M. X. JI. (U) ii, 1888, p. 57. 



Shell narrowly umbilicate, conoidly depressed, sublenticular, 

 not very thin, slightly polished above, more brilliantly beneath, 

 marked with tine, close, spiral or concentric (longitudinal) im- 

 pressed lines above and below, brownish horny ; spire conoidal, 

 with tiie sides convex, apex obtuse, suture impressed ; whorls 5, 

 regularly increasing, convex ; last whorl bluntly angulate at peri- 

 l)hery, convex beneath ; aperture oblique, subangulately and 

 broadly lunate, subovate ; peristome straight, basal margin mnch 

 rounded, columellar vertical, slightly reflected. 



Major diam. 7-5, min. 7, height 4 mm. Smaller shells measure 

 X o X 3-5 mm. 



Hah. Little Brother Island, Andaman group. 



This is probably not a Mucrocldamys. 



208. Macrochlamys ? battimalvensis, Godwin-Austen {Nevill, MS.), 



A. M. A. H. (6) ii, 1?88, p. 58. 



Shell narrowly umbilicate, depressed, lenticular, compressedly 

 carinate, not thin, smooth, finely transversely striated and decus- 

 sated with microsco|)ic rather distinct longitudinal impressed lines 

 above and below, brownish yellow ; spire low, conoidal, suture 

 almost flat; whorls 4.J, flatly convex, the last compressed above 

 the prominent keel, more convex beneath, tumid around the deep 

 pervious umbihcus ; aperture oblique, subsecuriform ; peristome 

 thin (? immature), straight, columellar margin vertical, rather 

 broadly reflected. 



Major diam. 9-5, min. 8, height 4 mm. 



Hah. Batti Malve, one of the Nicobar Islands. 



This shell is not like any known Macrochlamys. and the only 

 .specimen may be immature. 



K 



