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T. formosus, Gray. P. Z. S, 18G9, p. 217, pi. 15, f. 1. 

 Nilssonia formosa. Gray. P. Z. S., 1873, p. 45. 



My type specimen from Pegu was a young one, and its identi- 

 fication with the large skull of unknown origin on which Gray 

 based the genus 'Nilssonia,' may prove erroneous. 



Colour of young olive, with four very large black-eyed spots, 

 the central spot circular, black with a narrow white margin 

 (yellow?), surrounded by a dark brown ring, enclosed within an 

 outer broad pale ring, with a narrow olive interspace between. 

 Back ornamented with symmetrical dark reticulations. Beneath 

 sooty. Head and neck olive, symmetrically ornamented with 

 dark-edged yellow spots. A yellow spot on the temple, another 

 behind the gape, with a second below it. A yellow spot on the 

 throat, and the upper lip yellow dotted. A broad yellow collar, 

 effused below and interrupted over the spine. 



It is more than probable that this form is the young of one 

 of the other Pegu species, though of which cannot be safely 

 guessed at. 



Inhabits Pegu. 



T. Peguensis, Gray. Sup., Cat. S. R., p. 99. 

 Isola Peguensis, Gray. P. Z. S., 1873, p. 51, f. 5. 



Head only known, brought from Pegu by myself. " Pale 

 olive green, minutely and closely punctulated with black. The 

 upper lip, lower part of the sides of the head, sides of the neck, 

 chin, and throat uniform greyish white. The lower margin of 

 the flap of the upper lip opaque white." Length 4 inches. 



Inhabits Pegu (Tonghu). 



T. Grayii, Theobald. Proc. As. Soc, Bengal, 1875. 



Skull corresponds in general characters with the last, but the 

 colouration is so difierent as to leave no question of their specific 

 distinction. Head marked after the fashion of T. Phayrei, Th. 

 whilst the granular osseous bones of the sternum are much 

 more developed than in that species. 



Inhabits Pegu. 



