330 J. S. BUDGETT. 



differs from it in the greater width of the skull, greater length 

 of the hind legs, which carried forwards reach tip of snout, and 

 in the skin being smooth, thin, and slimy, with the organs of 

 the lateral line showing clearly upon it. Also the tympanum 

 is larger and more evident. The tips of the toes do not bear 

 horny caps as in the preceding species. 



Below is a comparative list of measurements in millimetres 

 in two specimens of XXIII and one specimen of XXIV. 



Total Length. Hind Legs. Width of Jaw. Eye to Eye. Eye to Ear. Ear to Ear. 



r«. 80 . 62 . 34 . 4 . 8 . 24 



1^. 70 . 60 . 33 . 3| . 7i . 23 



XXIV. c. 80 . 70 . 38 . 5 . 9 . 28 



It is a source of great regret to me that I am obliged to 

 abandon for the present my work in this direction. I have a 

 considerable amount of material at my disposal of the develop- 

 mental stages of several of the species of frogs, concerning 

 which I have here merely stated the observations which I 

 made a note of while yet in the Paraguayan Chaco. I sin- 

 cerely hope that I may be able to return to this work at a 

 future date. 



Concerning the species Phyllomedusa hypochondri- 

 acs I should state that, although I have gone more fully 

 into its development than others of my collection, here also my 

 work has been cut short. 



In concluding, I should like to say that I am very greatly 

 indebted to Mr. Graham Kerr for tlie opportunity he afforded 

 me of obtaining my material, and also for much help and 

 advice in my work. 



