
1865.] Contributions to Indian Malacoloqy. 73 
Aperture 3 millem. broad, 2 high. 
Animal with a small mucus pore, and very small lobe above. 
Habitat—Irawaddy valley, Pegu. 
This pretty little species abounds near Thayet Myo, and occurs 
throughout the Trawaddy valley in British Burmah. I do not re- 
member meeting with it in Arakan. It is easily distinguished from 
all others of similar form among Indian shells, by its very oblique 
mouth, by the peculiar columellar margin of the peristome, and by 
the strong lirate sculpture. I have much doubt as to whether it 
should be assigned to Z’rochomorpha, the species of which group are 
larger, and the animals somewhat different. 
Section Kaliella ? 
11. N. convza, n. sp. 
Shell subperforate, turreted, white, horny, thin, translucent, marked 
with oblique sinuous subfiliform costulate striation, and, below the 
centre of the whorl, with very fine spiral lines, only visible under a 
powerful lens. Spire conical, apex rather obtuse, suture deeply sunk. 
Whorls 6, very convex, keeled in the centre, the keel very fine, raised, 
thread-like, opaque and white; the last whorl bicarinate, the second 
raised spiral line being below the periphery ; flatly convex beneath, and 
marked by radiating striz and concentric impressed lines. Aperture 
oblique, tumidly and subangulately lunate, about equally broad and 
high ; peristome thin ; margins distant ; columellar nearly vertical, very 
briefly reflexed at the penultimate whorl. 
Millem. inch. 
aM Cte a Wa. Aledcniacsck. apd es 1? 0.07 
Height, ..... Codie ethabta sees P 2. 0.08 
Habitat—Phoung ditto. Arakan. 
A minute species remarkable for its keeled and convex whorls. 
Only 4 specimens were found. J 
Genus HELIX. 
Section Plectopylis. 
12. H. Karznorvum, n. sp. 
Shell sinistrorse, very widely umbilicated, discoid, flat above, solid, 
white, with rather irregular oblique pale chesnut. streaks crossing the 
whorls, transversely and sinuously striated with decussating spiral 
