Vol. I, No. 3.] | Contributions to Oriental Herpetology. 87 
[WV. 8.] 
CALOTES VERSICOLOR (Daud). 
C. gigas, Blyth, J.A.S.B. XII, 1853, p. 648. 
C. gigas (under C. mystaceus), Boulenger, Faun. Ind., Rept. 
p- 188. C. versicolor ¢d., op. cit., p. 135. 
I have examined several hundred specimens of this common 
lizard. They came from nearly all parts of India and Ceylon, 
from Malaya and Pitsanuloke in Siam. With these I have 
compared Blyth’s types of C. gigas (which are in the Indian 
Museum), with the result that I find the two forms to belong 
clearly to the same species. There isno oblique fold in front of 
the shoulder in Blyth’s specimens, and therefore they cannot be 
associated with C. mystaceus, as Boulenger, who had had no oppor- 
tunity of examining them, thought probable. 
The types of C. gigas, which are adult males, differ from 
the majority of specimens only in having the secondary sexual 
characters more fully developed ; the scales (especially those on the 
throat) are heavily keeled and inclined to be lanceolate in outline, 
the crest is very high, the cheeks are greatly swollen, the size 
above the average. The large series examined shows that in 
Lower Bengal (and probably in Assam, Burma and Malaya), the 
males of C. versicolor rarely 1f ever reach an extreme degree of 
development in these respects; but no exact line can be drawn. 
We have specimens from Sind, from South and North-West India 
and from Ceylon which agree almost exactly with Blyth’s, while 
amuch larger number are intermediate in character. Dr. Blanford’s 
examples from Baluchistan (Hastern Persia uu, p. 313) belong 
to this intermediate phase; but specimens from Calcutta have 
the male characters even less marked. The extreme phase 
(gigas) probably bears much the same relation to versicolor as 
Gonyocephalus humiz (Blyth) does to G. subcristatus (Stol). 
CALOTES YUNNANENSIS. nov. 
C. maria (part.), Anderson, Anat. Zool. Res. Yunnan He., p 806. 
Among’ the lizards collected by Dr. Anderson in Yunnan I find a 
Calotes which does not agree with any published description. It is 
registered in the Museum books as 0. marda and is the only speci- 
men from Yunnan now in the collection which at all resembles this 
species. It differs, however, in certain respects from the des- 
criptions and from specimens from Assam, and I think that (in the 
present state of systematic nomenclature) it is worthy of a specific 
name. Anderson states that the specimens of C. maria which he took 
in Yunnan were compared with the types of the species; but what 
has become of the rest of them I have been unable to discover. As 
regards several important points the new form is intermediate 
between UO. mariaand OC. jerdonii ; butit has a distinct though rather 
short and shallow oblique fold in front of the shoulder covered with 
granular scales. Were it not that the presence or absence of such 
a fold is a very constant character in other members of the genus, 
