144 
Contributions to Indian Malacology . 
[No. 2, 
Hab. in montibus Arab an a Pegu secernentibus. 
But two perfect specimens of this shell occurred to me at Modi* 
toung on the Prome and Tongoop road, together with Algcccus gra- 
phicus, &c. It resembles D. pachycheilus , B. in the shape of the 
mouth, but is distinguished by the slighter rise of the last whorl, 
and by its subremote costulate sculpture, which, together with its 
less rounded aperture, serves also to distinguish it from D. diploclici - 
lus, B. D. pullula, B. and D. Blanfordiana, B. the two latter of 
which are closely costulated, and the first named smooth. 
I have met with two other species of Diplommatina in Pegu, both 
apparently undescribed. # The genus had not previously been met 
with in the Burmese peninsula. 
During the past year (1861) I have found Hydrocena pyxis, B. 
as far South as the neighbourhood of Henzada. Cyclophorus ful¬ 
gurates , Pfeiffer, C. Thcobaldianus, B. and C, patens, appear to occur, 
the former abundantly, the others sparingly, throughout the greater? 
portion of Pegu, west of the Irrawaddy. A small JBupina is com¬ 
mon at Tliondoung near Thayet Myo and in several places furthe 
south. 
Leptopoma aspirans, B. occurs among Captain Ingram’s Arakan 
collections. Two large species of Cyclophorus, one of which may 
perhaps be a variety of C. aurantiacus, Sebum, were found near Ton-* 
goop. A solitary specimen of a small Uelicina , allied to H. Anda- 
manica, B. was obtained from Ramri Island.t 
Thayet Myo, August, 1861. 
Since the above paper has been written, undescribed forms have 
accumulated upon my hands. Of these the most interesting are a 
second species of the genus Hypselostoma from Ava, whence I have 
also had the good fortune to obtain two more Alyccei and two 
Diplomniatinoe, as well as a very singular little operculate shell allied 
to the anomalous Plerocyclos hispidus, Pearson. Two new species of 
Helix of the section plectopylis of Benson have also occurred to me 
and a very considerable number of other novelties. 
Bassein, March, 1862. 
* Two other distinct species have since been obtained in Upper Burma. 
f Both Leptopoma aspirans and the email Relicina referred to above, have 
since been found abundantly in the South Western extremity of Pegu. They 
nr© there associated with the Darjiling and Khasi Relist plectostoma, B, 
