LIST OF MOLLUSC A OF RANGOON. 
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but more white round the umbilicus. V'ery young specimens are almost 
transparent, and mottled with reddish brovur. Young specimens before the 
lip is formed are very deep reddish brown. Full grown adult specimens 
greyish brown. Very old specimens seem to lose their colour and become 
almost white, though the peristome never loses its colour. ’ 
(C.) River Mollusca. 
Ic. Cerithium lemniscatum , Qusay and Gaimard. — This .species is recorded 
from Rangoon by von Martens. 
2c. ?? Cerithidea sp.—A large specimen something like a Cerithium was 
taken at Dawbong, Rangoon. I have also a specimen from Kyanktan, 
Burma. Having no books dealing with Cerithium and its allies I am not 
able to say what this is. 
3c. Turritella columnaris, Kiener. — This species has been recorded from 
Rangoon by von Martens. I have not been able to obtain specimens. 
4c. Littorina rubropicta, von Martens. — (Fauna of Mergui, p. 170). This is a 
very common species in Rangoon. Specimens obtained in Kyanktan, 
Burma, are much larger than Rangoon specimens. 
5c. Littorina subintermedia, Nevill. — This specimen was kindly identified for 
me by Dr. Annandale of the Indian Museum. It is fairly common attach- 
ed to stones on the banks of the river. 
6c. Assiminia francescice ?, Gray. — These specimens were very kindly identi- 
fied for me by Dr. Annandale as probably francescioe. 
7c. Assiminia sp. — These specimens are red in colour and might possibly 
be A. brevictila, Pfeiffer, but unfortunately no books are available giving 
the description of this species. 
8c. ? Rissoina sp. — These specimens were found on the river training walls. 
I am unable to say what they really are. 
9c. Larina biirma riorum, Blanford ; — This species has been recorded from 
the Rangoon River (Burma, Its People, and Productions, Vol. I, p. 157). 
I have not been able to obtain any specimens. 
10c. Neritina crepidularia, Lam. ; — (Fauna of Mergui, p. 171). Black (lower 
surface) coloured specimens {Dostia cornucopice) are usually found mixed 
with typical red (lower surface) specimens. The periostracum varies 
• from olive green to almost black. Some specimens being very prettily 
marked with black lines resembling somewhat Arabic writing. 
11c. Neritina sp. — These are small and very dark being whitish below. I 
at first took them for young of N. crepidularia but probably they are a 
separate species. 
12c. Nerita sp. — Only one specimen was taken and I am unable to identify 
it. 
13c. ? Siphonaria sp. — This limpet is very plentiful. I cannot say whether 
it is really a Siphonaria or not. 
14e. Auricula jiidoe, L.- — Specimens apparently representing this species 
have been taken near Monkey Point in decaying vegetable matter. They 
are not common. 
15c. Auricula sp. — This is the common Auricula of Rangoon, and may, per- 
haps, be A. (j angelica. 
16c. Rythia plicata, For. — This species is mentioned by von Martens as from 
Rangoon. Many specimens have been taken on trees from two localities. 
( 1 ) trees on bank of tidal drain Lower Pazundaung Road, (2) trees in 
marshy land exposed to tide near Monkey Point. Auricula and Rythia 
have been so far found in the same localities, but Auricula has never 
been seen on trees. Rythia appears to be more of a land shell than a salt 
water species. 
17c. Rythia trigona, Troschel. — This species is also recorded from Rangoon 
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