1872.] W. Theobald & F. Stoliczka — Notes on Burmese Land Shells. 333 
striato ; apertura fere semicircular i, labro simplici, antice modice recedente, 
margine subobtuso instructo, lahio recto, incrassato ; operculo testae to, tenui, 
subdiaphano, paucispirato. Alt. tested IT, diam. max. 0‘95 m.m. 
Hub. In valle jhaninis Ataran, prope Moulmain. 
Allied to O. pyxis in having the uppermost spiral ridge on the whorls 
somewhat remote from the suture, but the ridges themselves are stronger, 
the whorls somewhat less numerous, the apex very distinctly mammillate, 
and the entire form of the shell more slender and cylindrical. Only three 
specimens were discovered by Mr. Theobald. 
The slight variation in the shape is indicated by the figures given of 
two specimens. 
Acmelia hyaltya, n. sp. PI. xi. Fig. 7. 
Ac. testa ovato conica, modice perforata, hyalina, sordide ahbida ; spira 
obtusa ; anfractibus 4} convexinsculis, sutura simplici et profunda junctis, 
ad suturam subtruncatis, loevigatis, ultimo spira paulo breviore, basi convexo ; 
apertura regulariter ovata, supra (vel postice) subangulata, baud obliqua, 
peristomate tenui fere continue. Long. 1, lat. 07 m.m. ( Operculum deest). 
Bah. Incollis calcareis prope Moulmain. 
Of the two known species of the genus, A. tersa and the doubtful 
milium, both described by Benson from the Khasi hills, the present new 
form closely agrees in the shape of the shell with the first, and in the.smooth- 
ness of the surface with the second. 
Acmella, Blanf., is evidently quite distinct from Georissa, or Bydrocena, 
the latter being one of the HEmciNinjE, while the former is most likely 
a Cyclophorid, or possibly one of the intermediate forms close to Assiminea 
and Omphalotropis, connecting the Cvcr.oi'HoiUDA: with the liissoi u.e. 
(Comp. Blanford in Ann. and Mag. N. H. for March 1869). 
BE LIC ACL A. 
Pupa eelosa, n. sp. PI. xi. Fig. 8. 
_P. testa ovato cylindracea, cornea, pellucida, apice obtusiuscula, rimate 
umbilicata ; anfractibus 41 con vexi usculis, sutura simplici junctis, trans- 
versim striis cuticularibus, obliq uis,fliformib us ornatis ; ultimospira breviore, 
basi vix angustato, convexiusculo ; apertura subguadrangulari, recta, intus 
dentihus quinque instructa, labro undique paulo expansiusculo, alque incras- 
sato, infra suturam subangulato, ad latus dentihus duobus parvis profunde 
sitis instructo ; labio tenuissimo, prope medium dentihus pliciformibus duobus 
approximate, anteriore multo minore, prxdito ; columella unidentata. Long. 
2, diam. max. 1 m.m. ; apert. cum perist. 0 75 longa, antice 0 55, postice 
0 75 m.m. lata. 
Bab. In littore AraJcanense ; satis Jr equens. 
