
1865.] Contributions to Indian Malacology. 97 
Bens., but has flatter whorls, a sharper keel, a more acute apex, and 
rather less strongly marked sculpture. 
A small turbinate species of Cyclophorus, which I found at a con- 
siderable height on the Arakan hills between Prome and Tongoop, 
with a rounded periphery and very narrow umbilicus, requires compa- 
rison with C. scurra, Bens. Another form, with a subangulate peri- 
phery, was met with in Bassein district, and a third, rather larger, but 
otherwise identical, in Ramri island. All of these may be varieties of 
the same shell. All possess a very narrow umbilicus, a thin white 
expanded lip, and minute sculpture. 
None of the small discoid Cyclophori, so far as I am aware, occur in 
Pegu. C. hispidulus, W. Blanf., I described in a previous paper as 
occurring at Mya Leit Doung, Ava. C. calyx, Bens. is stated by 
Mr. Theobald to occur at Akoutoung, Pegu, and that locality has been 
quoted for it by Mr. Benson in describing the shell, and repeated by 
Pfeiffer in Suppl. Mon. Pneum. p. 56. I think some mistake must 
have been made by Mr. Theobald in arranging and labelling the very 
extensive collections which he made in 1854-55, for the shell abounds 
in Molmein, while, although I have repeatedly searched all round the 
Akoutoung hills, I have not met with it. 
Leptopoma. 
In a previous paper (J’ A. 8. B. for 1862) reference was made to 
the occurrence of the Tenasserim L. aspivans, Bens., in Arakan, near 
Tongoop, and in the Bassein district of Pegu. It was found in great 
abundance in Long Island in the Bassein river. I also found speci- 
mens close to Akyab, in the hills on the opposite (south) side of the 
harbour. Some of these last are rather larger than the typical form, 
and measure 14 by 103 millemetres in the two diameters and 12 in 
height ; they are also smoother, wanting the raised spiral lines, and 
the last whorl is rounded or subangulate near the mouth : but other 
specimens are scarcely distinguishable from typical shells from Tenas- 
serim, among which also some of the above characters, and especially 
the sculpture, are variable. 
Pterocyclos. 
Pt. pullatus, Bens., has only been found near Akoutoung. In 
Arakan, near Tongoop, and again at Akyab, I found a species closely 
allied to Pt. parvus, Pearson. The Akyab specimens possess their 
