MACROCHLAMYS. 115 



E. Species from Burma, Arakan, and Teuasseriin. 

 a. Peristome labiate. 



1 78. Macrochlamys ? consepta, Es. (Helix) A.M.N. H. (3) vi, 1860, 

 p. 190; xi, 1863, p. 320; Pfr. (Helix) Man. Hel v. 1868, p. 239; 

 H. # T. (Helix) ' C. I. 1876, pi. 88, figs. 5, 6 ; Godwin-Austen, Mol. 

 Ind. i, 1888, p. 209, pi. 53, fig. 1 ; id. 1883, p. 110, pi. 26, tig. 4 

 (small var., more globose) ; id. P. Z. S. 1888, p. 241 (small var.). 



Shell subperf orate, depressed, almost discoidal,not thin, smooth, 

 polished, glassy, whitish horny ; spire almost flat, apex slightly 

 raised, suture impressed; whorls 7, convex, closely wound, the 

 last not much broader, rounded at the periphery, slightly convex 

 beneath, impressed in the umbilical region ; aperture almost 



Fig. 47. Macrochlamys (?) consepta. 



vertical, broadly lunate ; peristome blunt, white and narrowly 

 labiate within, basal margin slightly arcuate, columellar oblique, 

 expanded and reflected above, almost completely closing the 

 perforation. 



Major diam. 18, min. 16, height 7 mm. 



Hob. Damathat near Moulmein, Muleyit Range (4000') ; Upper 

 Burmah ; Shan States ? 



Benson described the type as obsoletely spirally striated, but 

 no sculpture can be detected on numerous specimens examined. 

 Easily recognized by its almost flat whitish glassy shell. The 

 animal is not known and the generic relations are doubtful. 



a'. Smooth. 



179. Macrochlamys ? petasus, Bs. (Helix) A. M. N. H. (3) iii, 1859, 

 p. 388 ; Pfr. (Helix) Mon. Hel. v, 1868, p. 197 ; H. 8? T. (Helix) 

 C. L 1876, pi. 89, figs. 8, 9; Nevitt, Nanina (Microcystis), 

 Hand-l. i, 1878, p. 35 ; Godwin-Austen, Mol. Ind. i, 1883, p. 210, 

 pi. 53, fig. 6 (shell). 



Shell subobtectly perforate, depressed, smooth, polished, yel- 

 lowish tawny; spire low, convexly conoid, suture scarcely 

 impressed ; whorls 5-6. increasing slowly, flatly convex above, 

 the last rounded to slightly subangulate at the periphery, convex 

 beneath ; aperture subvertical, broadly lunate ; peristome blunt, 

 very narrowly labiate inside at the edge, basal margin slightly 

 arcuate, columellar oblique, rather broadly reflected above. 



Major diam. 10|, min. 9J, height 5 mm. 



Hab. Phiethan, Tenasserim Valley. I wrongly regarded as 

 identical a snail common about Thayetmyo in Pegu and in the 

 Arakan Hills, now distinguished as M. notha. Nevill refers to 



i2 



