312 J. S. BUDGETT. 



decaying vegetation in the forest. Plum-coloured and very 

 glossy above, and greyish with white spots below. One speci- 

 men found. Native name unknown. 



(The specimens collected by Bohls, in Paraguay, are all 

 brightly spotted above.) 



XI. PSEUDIS PARADOXA, L. 



A water-frog never seen on land, and extremely shy. 

 Though often seen floating in a shallow pool, it was caught 

 with great difficulty. 



In life most beautifully coloured with bronze, bright green, 

 and black markings above ; underneath a satiny sulphur- 

 yellow, with brown spots on the trunk and brown stripes on 

 the thighs. On killing, all the brilliant colours of the back 

 turned to a dull uniform brown in a few minutes. 



Though there were a pair of these in a pool all through the 

 early part of the wet season, yet the pool did not contain any 

 of the well-known gigantic larvae with reference to which the 

 frog is named. 



No native name known to me. 



XII. PSEUDIS LIMELLUM (Copc). 



Small green frog abundant on the camelota leaves at Con- 

 cepcion. Capable of changing its colour greatly from bright 

 green to dull brown, underneath silvery. Two white streaks 

 run backwards from the eyes. The call is a succession of 

 sharp croaks or vibrations resembling the sound made by 

 castanets. The throat is inflated for each series. 



They hop quickly over the surface of the water, and perch 

 on the camelota leaves and stems. They are enabled thus to 

 hop on the surface of the water by reason of the very large 

 webs of the hind feet. The tips of the toes also have dilated 

 discs. Their food consists mainly of small fresh-water Gas- 

 teropods. Females larger than the males. 



No native name known to me. 



