270 LAND AND 1 KKSll WATKK 



i^ivui. Brit, liid., Moll. p. 127:— 



" Shell narrowly perforate, depressed, smooth, with faint micro- 

 scopic traces of minute, close, spiral (longitudinal) striation, polished, 

 pale yellowish or greyish brown ; spire very depressedly conoidal, 

 suture faintly impressed : whorls 6-7, slightly convex above, in- 

 creasing slowly and regularly, the last rounded outside, obtusely 

 subangulate above the periphery in immature shells, convex 

 beneath ; aperture slightly oblique, lunate ; peristome thin, upper 

 margin straight, basal slightly arcuate, columellar oblique, ex- 

 panded throughout the greater part of its length, more broadly above. 



"Major diam. 12^, min. 11, height nearly 6 mm. A rather 

 smaller specimen with 6 whorls measures 11^ x 10^ x5 mm. 



•' Hah. Mount Harriet, Port Blair, South Andaman Island. 



" Benson's type measured only 10 ram. in major diameter. 



'•The ligures in the 'Conchologia Indica' are not good, and 

 perhaps represent a different shell. M. stejohus niay be recognized 

 by its closely-wound whorls, low spire, and want of distinct 

 sculpture under the microscope. 



"Animal throughout yellow, except the tentacles, which are 

 black, sole of foot also yellow {Nevill). 



" [In a specimen recently examined, sent home by Mr. G. Eogers 

 from South Andaman Island, a minute left shell-lobe is present, 

 contracted and hooked in the spirit-specimen. Preserved in this 

 way and brittle, it would very readily be broken off. The penis 

 has a small coiled cfecum ; the jaw a small central projection. In 

 the radula the laterals are slightly curved aculeate teeth, and the 

 formula is 



30 . 1 . 10 . 1 . 10 . 1 . 30 

 41 . 1 . 41 



in all respects similar to that of M. e.rid.'] " 



Mackoohlamys kumahensis, Theob. & Stol. (Plate CXXYIII. 

 fig. 8; from specimen in Dr. W. T. Blanford's collection.) 



Nanina ramriensis, Blf., Nevill, Hand-1. i. p. 24 (no description). 



MacrocMamys l-umahensis, Theob. & Stol. J. A. S. B. 1872, 2, 

 p. 334, pi. 11. figs. 9, 10; Pfr. {Uelix) Mon. Hel. vii. 1876, 

 p. 531 ; Nevill {Sanina), Hand-1. i. 1878, p. 25. 



Paun. Brit. Ind., Moll. p. 117:— 



" Shell openly perforate, depressed (almost subglobose), thin, 

 smooth, polished, with close, minute, longitudinal (concentric) 

 striation, only visible under a microscope, above and below, 

 yellowish to brownish tawny; spire low, suture rather well iui- 

 pressed ; whorls 4^, convex, subangulate outside the suture ; the 

 last considerably broader, well rounded at the periphery and 

 rather tumid below ; aperture oblique, roundly lunate, almost 

 circular ; peristome thin, straight, columellar margin much curved, 

 becoming vertical above, and rather broadly triangularly expanded. 



" Major diam. 9|, uiin. 8^, height 5^ mm. 



