126 



BLUE-AND-YELLOW FROG. 



Rana Bicolor. R. supra c&rulea, subtm ochracea, pedibus Jissis, 



digitis orbiculato-dilatatis. 

 Blue Frog, ochre-coloured beneath, with uuwebbed feet, and 



flattened orbicular toes. 

 Rana bicolor. R. supra cxrulca, subtus ochracea. Lin. Si/st. 



Nat. Gmel. p. 1052. Eoddaert Monogr. 1772. 

 Blue and yellow Frog. Naturalist's Miscellany, vol. 10. pi. 36'7. 



THIS is a moderately large species; the body 

 measuring rather more than four inches in length. 



o o 



The whole upper surface, both of body and limbs, 

 is of an elegant blue colour: the under parts are of 

 a pale orange or rather ochre colour ; and along 

 the sides are disposed several oblong and round, 

 slightly convex, glandular white spots or pustules : 

 the head is large ; the mouth wide ; and the tip of 

 the nose truncated or abruptly terminated : the 

 fore feet have four and the hind feet five toes, all 

 terminated by a large orbicular tip ; and beneath 

 every joint of the toes is a process or tubercle. 

 Different specimens appear to vary somewhat in 

 their colours, the blue being more intense, and 

 the orange-colour of the lower parts deeper; the 

 limbs are also sometimes tinged with purplish 

 bands or shades : the lower part of the abdomen 

 is marked with numerous Avhitish round granules. 



The female has more of the violet cast on the 

 upper parts than the male, and the whitish marks 

 on the side, &c. are more conspicuous. 



This elegant species is supposed to be a native 

 of Surinam. 



