1895.] ON SOME TREE-FEOGS OF BEAZIL. 89 



February 5, 1895. 



Sir W. H. Flowee, K.O.B., LL.D., F.E.S., President, 

 in the Chair. 



The Secretary read the following report on the additions to 

 the Society's Menagerie during the month of January 1895. 



The total number of registered additions to the Society's 

 Menagerie during the month of January was 39, of which 29 

 were by presentation, 1 by birth, 3 by purchase, and 6 were 

 received on deposit. The total number of departures during the 

 same period, by death and removals, was 110. 



Mr. Holding exhibited and made remarks on the skull of a 

 Three-horned Stag, the head of a Four-horned Earn, and the 

 gnawed horn of a Eed Deer. 



The following papers were read : — 



1. Contribution to the Knowledge of the Breeding-habits 

 of some Tree-Frogs {Hylidce) of the Serra dos Orgaos, 

 Rio de Janeiro, Brazil. By Dr. Emil A. Goeldi, 

 Director of the Museum of Natural History and 

 Ethnography of Para \ 



[Received January 1, 1895.] 



1. Htla fabee, Wied. 



Hyla jjalmata, Burmeister ; H. maocima, Eeinhardt et Liitken. 



The "Ferreiro"(" Smith") is of common occurrence in the Pro- 

 vince Eio de Janeiro, more frequently still in the mountain regions 

 of the Serra dos Orgaos than in the hot lowland. At Colouia 

 Alpina, near Theresopolis, I could be sure to pick up three or 

 four individuals in less than an hour in the evening, guided to 

 their retreats by their singular voice. In fact this voice is one 

 of the most characteristic sounds to be heard in tropical South 

 America. Fancy the noise of a mallet, slowly and regularly 

 beaten upon a copper plate, and you will have a pretty good idea 

 of the concert, given generally by several individuals at the same 

 time and with slight variations in tone and intensity. 



When you approach the spot where the Tree-Frog sits, the 

 sound ceases. But keep quiet, and it will be resumed after a few 

 moments. Tou will discover the frog on a grass-stem, on a leaf 

 of a low branch, or in the mud. Seize it quickly, for it is a most 



^ Communicated by Mr. G. A. Boulenger, F.R.S. 



