330 W. Theobald & F. Stoliczka — Notes on Burmese Land Shells. [No. 4, 
Genus, Alycusus. 
Of this genus several species were found which were previously only 
known to occur in Sikkim, and in the Khasi and Garo hills. A. pusillus 
was met with at Nattoung in the Mendon district, Pegu ; A. urnula, and a 
small variety of A. Inrjrami, at Mai-i in the Arakan hills ; A. crispatus at 
Maianoung and near Moulmain ; at this last named locality also occurred 
a large, red-liped variety of A. urnula, and several specimens of A. Bichtho- 
feni, the shells slightly vary in the height of the spire, but all are of 
exactly the same character. 
Alycasits Kubziaots, n. sp. PI. xi. Fig. 2. 
A. testa subglobose conoulea, late umbilicata, pallide rubescente ; anfrac- 
tibus 4, wide convexis, sublwvigatis, transversim distanter obsolete costellatis, 
ultimo anfractu medio ambitus modice inflate, confertim costulato, tmn 
wide constricto Iccvigatoque, in constrictione costa obtusa transversd in- 
structo, rursusque expansiusculo atque paulo deflexo; aperture magna, obliqua, 
subrotundata, supra obtuse angulata, infra anguste canaliculata ; preritremate 
modice incrassato, duplici, externo paulum expanso, labro interno plicatulo, 
labio sublcevigato. IHam. maj. specim. maximi 3'5, minor 3, alt. 2'7 m.m. 
Nab. Nattoung in provincia Barmana, Bronte dicta. 
The peculiarly formed aperture with the lower canal and its internal 
plication on the outer lip readily distinguish this species from A. polygona, 
which besides differs by more rounded and higher whorls. Mr. Kurz 
brought some years ago a specimen of this interesting species from Pegu ; 
more recently Mr. Theobald collected it near Nattoung in the Western 
Prome district. The measurements above given are those of one of the 
largest specimens. 
Genus, Diplommatina. 
Several remarkable varieties of formerly described species occurred with 
other known forms, both in Arakan and at Moulmain. Among these the 
following deserve special notice. 
1. I), sperata, Blf., was found at Mai-i in the Sandoway district. It 
is a very rare shell. 
2. I), polypleuris, Bens., occurs abundantly in the Sandoway district 
and at Nattoung, more rarely near Moulmain. 
3. B. olygopleuris, Blf. Very fine specimens, measuring 3 m.m. in 
length and l - 5 m.m. in thickness, were collected on the Kumah hill in 
Arakan, and a solitary specimen was found at Baom, also in Arakan. The 
latter exactly agrees in form and size (length 2 m.m.) with typical Cachar 
specimens, but while in these the costulation generally becomes obsolete on the 
two last whorls, the same is well developed and comparatively slightly closer 
