1870.] Indian and Malayan Amphibia and Reptilia. 177 



I have obtained two specimens at the old Portuguese settlement 

 of Martaban, opposite to Moulmein ; the species does not seem to 

 be common. The larger specimen measures 3^ inches of which 

 the tail is 2 ; the other is only 2£ /r , of which the tail is very nearly 

 If inch, its head is considerably shorter and the snout more obtuse, 

 than that of the larger specimen. 



I consider Riopa to be a good distinct genus, or sub-genus, 

 particularly characterized by the slender form of its body and 

 feeble limbs. The present species appears very closely allied 

 to Eum. JBowringii, (G tint her, 1. cit., p. 91,) but this one 

 has twenty-eight longitudinal series of scales and only thirty 

 transverse series between fore and hind limbs ; the scales must 

 be, therefore, much longer, as G-iinther's specimen is in 

 measurements equal to the larger one from Martaban. Another 

 allied form is Riopa anguina, Theobald, (Burmese Rept., p. 27 

 in Journ. Linn. Soc, London, Vol. X, Zoology), but this again has 

 much shorter limbs, the hind one being " as long as from snout to 

 ear, fore-limbs a trifle less," while in the present species the fore- 

 limbs are considerably shorter than the hind limbs and the latter 

 proportionately longer ; the colour of anguina is also " uniform brown 

 above with no markings." The number of scales &c. is not men- 

 tioned by Theobald, but even with the few differences noticed, 

 it would impossible to regard them as belonging to one and the 

 same species, though both come from the same region. Theo- 

 bald in his Burmese Catalogue (p. 26) says of E. Bowringii, as 

 having been captured at Thaiet-mio. The specimen, he states has 

 " a minute lobe in front of the ear" and " an inconspicuous white 

 streak from the eye down either side of the back, bordered below 

 with black." These characters also don't agree with those of 

 the species here described, but perhaps they do not exclude the 

 possibility of either one or the other of Mr. Theobald's 

 specimens being identical with R. lineolata. 



Fam. Agamidje. 



30. Calotes mystaceus, D. and B. (Gr ii n t h., 1. cit. p. 141). 

 The peculiar coloration of this species has been noted by Mr. Theo- 

 bald in his Cat. of Kept, in the Asiat. Soc. Museum, p. 36, and in 



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