332 W. Theobald & F. Stoliezka — Notes on JBarmese Land Shells. [No. 4, 
A species closely allied to D. angulata, but more slender, with less dis- 
tinctly angulated whorls, non-mammillated apex, with a slightly more dis- 
tant costulation and with a comparatively smaller aperture. 
Only the solitary figured specimen of this shell was obtained on the 
limestone hill at the so-called Farm-caves. 
Genus, Geoeissa. 
1. Georissa Blanfordiana, Stol., (J. A. S. B., 1871, vol. xl, pt. ii, 
p. 158, pi. vi, fig. 6,) described from a single specimen, occurred abundantly 
both at the 1 arm-caves and South of Mbulmain. The type specimen is 
rather a young shell, which, when adult, attains a very distinct ovately 
conoid form, the whorls being in proportion somewhat less convex ; the inner 
lip is strongly thickened. One of the largest specimens measures : total 
length 2-8, greatest width of the last whorl 2, height of aperture 2'2, its 
width 1 m.m. 
When alive, the shell is rather deep succineous and semi-transparent ; 
old specimens become white. The operculum is of the usual form, very 
thin, with a long internal process, pale coloured, becoming blackish towards 
the centre. 
2. G. Itawesiana, Bens., also known from a single specimen, found at 
the Farm-caves near Moulmain, occurred in numerous examples on two 
limestone hills in the Ataran valley. The shell differs from G. liratula* by 
a more conoid shape, particularly in the adult, and by a much finer spiral 
striation, there being on the penultimate whorl as many as seven or eight of 
these spiral stria?, while in liratula there are only five of them. Young 
specimens of both species are equally globose, and of a succineous structure” 
One of the largest specimens of G. Itawesiana measures : length 2 4, largest 
diam. T8, height of aperture 1, its width 08 m.m. In adults the fine 
sculpture wears off remarkably easily, and such specimens closely resemble 
G. Blanfordiana , but have the whorls more convex, and the aperture pro- 
portionately smaller. 
3. G. pyxis, Bens., a species common about Prome, also occurs on the 
Kumah hill in the Sandoway district. 
4. Geoeissa feateena, n. sp. PL xi. Figs. 5 and 6. 
G. testa cyhndraceo conoidea, solidula, pallida, imperforata, regione 
umbilicali paulo impressa ; anfractibus 3J, convexis, supra modice subtrun- 
catis, sutura per-profunda junctis, spiraliter crasse liratis, liris in anfrac- 
tu penultimo quinque, svpera a sutura remotiuscula ; apice valde mam- 
millato ; ultimo anfractu spird breviore, basi convexiusculo , spiraliter 
* J. A. S. B. vol. xl, pt. ii, 1871, p. 157, pi. vi, fig. 5. 
