122 ZONITID^. 



distinguished by its uiubilicus, sculpture, &c., besides its very 

 mucb smaller size. 



Animal light grey. A very small lobe overhangs the small 

 mucous pore. 



c. Shells not exceeding 6 mm. 

 (Greneric position very doubtful.) 



a'. Turbinate. 



1 94. Macrochlamys ? pungi, Theobald (Helix), J. A.S.B. 1859. p. 307 ; 



Pfr. (Helix) Mon. Hel. v, 1868, p. 134 ; H. ^' T. C. 1. 1876, 

 pi. 16, tig-. 9 ; NeviU, Naiiina (Microcystis), if rt?2cZ-Z. i, 1878, p. 38 ; 

 Godwin- Austen (Macrochlamys ?), Mol. Ind. i, 1882, p. 90, pi. 14, 

 fig. 1 (shell). 

 Macrochlamys poongi, Tlieobald, Cat. 1876, p. 19. 



Shell perforate, turbinate, rather thin, chestnut-brown, ^^■ith 

 very close microscopic sculpture of tine impressed longitudinal 

 lines, hardly visible on the upper whorls ; spire couoidal, suture 

 deep ; whorls B^, convex, regularly increasing, the last not 

 descending, rounded at the periphery and below ; aperture almost 

 vertical, roundly lunate ; peristome thin, right mai-gin slightly 

 arcuate, columellar slightly expanded, vertical above and trian- 

 gularly reflected. 



Major diam. 6"5, min. 6, height 5 mm. 



Hah. Moulmein (Theobald, Stoliczka). 



Near M. ? molecula, but larger and higher in the spire. The 

 measurements are those of a large adult shell ; smaller specimens 

 are 5 to mm. across. 



b'. Depressed or conoidlij depressed. 

 a". Smooth. 



195. Macrochlamys ? molecula, Ih. (Helix) A. M. N. H. (3) iii, 1859, 



p. 389; Ffr. (Helix) Mon. Hel. v, 1868, p. 69; Stol. (Micro- 

 cvstis) J. A. S. B. 1871, 1>, p. 251, pi. 18, figs. 11-13 (anatomy) ; 

 H.S,- T. (Helix) C. 7. _ 1876, pi. 32, figs. 8,9; Nevill, Naiiina 

 (Microcvstis), Hand-l. i, 1878, p. 38 ; Godivin-Austen, Mol. Ind. 

 i, 1882, p. 88, pi. 16, fig. 8 (shell). 



Shell narrowly perfoliate, depressedly conoidal, thin, smooth, 

 without longitudinal sculpture, brownish horny, approaching pale 

 chestnut in colour; spire low, conoid, with convex sides and 

 obtuse apex, suture well imjjressed ; whorls 5-5g, rather closely 

 MOund, convex above, the last rounded at the periphery and 

 convex beneath ; apertin-e scarcely oblique, broadly lunate ; peri- 

 stome thin, straight, columellar margin oblique, slightly curved, 

 very brieily reflected above. 



Major diam. 5, min. 4, height 3 mm. 



Hah. Eangoon (Theobald), Moiilmein (Stoliczl-a), common ; also 

 Kalima Doung, near Ava ( W. T. B.) ; Assam ? and Khasi Hills ? 

 (teste Nevill) ; Lampun, Slam (Daly, see Proc. Mai. Soc. v, p. 275). 

 A common and widely distributed form. 



Animal crev to black : foot narrow , sole with t\Ao irrooves. 



