172 Records of the Indian Museum. [VOL.ViE, 
plateau at an altitude of at least 3,000 ft. and also at sea level on 
the coast. It also occupies the greater part of the Bombay Presi- 
dency, including Cutch. 
(2) The Burmese race (scutaia) is only known from the valleys 
of the Irrawaddi and the Salween. 
(3) The Ceylon race (ceyvlonensis) is confined to the plains of 
that island. 
A. Forma tvpica. The granulations on the carapace and 
more especially on the plastral callo- 
sities are small, even and regular and 
are not arranged in concentric curves. 
The head and the carapace, at all ages, 
are of a dark olivaceous shade conspi- 
cuously spotted with yellow. There 
are usually I4 bony marginal plates 
situated round the posterior part of the 
carapace. The entoplastral callosity is 
never very large and the xyphoplastral 
callosities are never in contact for the 
whole of their length, invariably diver- 
ging from one another above. The 
median process of the hyoplastra is 
long and slender. 
B. intermedia (pl. vi, fig. 3). The granulations of the plastral 
callosities are coarser and more irregular, 
the granules being larger but not arrang- 
ed definitely in concentric curves. The 
head of the young is very obscurely 
marked; the carapace is deep olive-green 
with obscure paler markings The head 
of the adult bears very conspicuous longi- 
tudinal dark lines ; its carapace is dark 
olive-green with a darker vermicular 
reticulation. The entoplastral callosity 
is of moderate size and the two xypho- 
plastral callosities are never in contact 
for the whole of their length. The 
marginal and the median hyoplastral 
process are as in the preceding race. 
C. vtttata. The granulations of the plastral callosities are 
still coarser than in zntermedia and the 
granules tend to be arranged in con- 
centric curves. The head of the young 
bears longitudinal dark lines, but the 
carapace is without markings at any 
age. In older individuals the dark 
lines on the head tend to disappear, 
the colour being an almost uniform 
