98 ZONITID^E. 



b. Smooth. 



141. Macrochlamys subjecta, Bs. (Helix) A. M. N. H. (2) ix, 1852, 

 p. 407 ; Pfr. (Helix) Mon. Hel. iii, 1853, p. 48 ; H. $ T. (Helix) 

 C. I. 1876, pi. 64, figs. 1, 2, 3; Nevitt, Hand-l i, 1878, p. 25. 



Shell subobtectly perforate, conoidly depressed (subglobose), very 

 thin, smooth, with a rather oily lustre above, more vitreous 

 beneath, pale yellowish amber to yellowish tawny in colour ; spire 

 low conoidal, apex rather acute, suture impressed ; whorls 6-6 j, 

 convex above, the last considerably broader, well rounded exter- 

 nally and beneath ; aperture slightly oblique, roundly lunate, 

 broader than high ; peristome very thin, in one plane, columellar 

 margin much curved, becoming vertical near the perforation and 

 triangularly expanded, but very little reflected. 



Major diam. 16, min. 13, height 9 mm. 



Hob. Kajmahal Hills; Orissa ; Cuttack (Theobald, W. T. 5.) 5 

 Oanjam. 



This species may be distinguished from its allies by its broader 

 last whorl and larger and broader mouth. 



[Animal from spirit-specimen (Rajmahal) pale in colour, with 

 slight coloration near the extremity of the foot, which has a 

 hooked overhanging termination. The right shell-lobe is mode- 

 rately long, tongue-shaped, and attenuate, the left is very small : 

 the left dorsal in two parts, overlapping. The generative organs 

 were not in the active stage and were very small. A coiled 

 csecum is present in the penis, and the amatorial organ was 

 observed. Teeth of radula of usual form, laterals evenly bicuspid. 

 Formula : 48 . 2 . 10 . 1 . 10 . 2 . 48, or 60 . 1 . 60. 



Jaw arched, with a central projection.] 



142. Macrochlamys lecythis, Bs. (Helix) A. M. N. H. (2) ix, 1852, 

 p. 406 : Pfr. (Helix) Mon. Hel. iii, 1853, p. 47; H. fy T. (Helix) 

 C. I. 1876, pi. 63, figs. 8, 9. 



Macrochlamys lecythis ?, Godwin- Austen. Mol. Ind. i, 1883, pi. 19, 

 fig. 5 (animal); ii, 1899, p. 134, pi. 94, figs. 2, 2, 4 (spermato- 

 phore) [is another species]. 



Shell subobtectly perforate, conoidly depressed (depressedly 

 subglobose), thin, polished, smooth, ochraceous horny, sometimes 

 olivaceous ; spire conoid, slightly raised, suture deep ; whorls 5-6, 

 convex, the last much broader, rounded at the periphery, moderately 

 swollen beneath ; aperture oblique, elliptically lunate, decidedly 

 broader than high ; peristome thin, straight, columellar margin 

 oblique, triangularly reflected above. 



" Major diam. 14, min. 13, height 8| mm." (Bs.). An immature 

 shell measures 11| x 10 x 6| mm. 



Hob. Eajmahal Hills (Bacon} ; Parasnath ? 



The typical form appears to pass into one with a rounder mouth 

 and vertical columellar margin, Benson's M. vesicula from Bengal. 

 The shells from Assam and the Assam Hills are much stouter 

 than those from Western Bengal and may be a different species. 



