2 University of Michigan 



Unfortunately, Mr. Duryea and I did not discriminate be- 

 tween P. talamancae and P. latinasus while in the field, but 

 the fact remains that contrary to the general experience oi 

 herpetologists all the frog calls we heard were so nearly iden- 

 tical that we could not certainly tell which of several forms 

 was calling, and this identity of calls included Hyla alhomar- 

 yinata, Hyla uranochroa, Phyllohates latinasus and Phyllo- 

 bates talamancae at one locality, and the new form from the 

 nearby cloud forest. The call of these five forms was a rather 

 metallic "cheep," a single, brief note, repeated at intervals. 

 There were unquestionably slight differences, appreciable 

 when one watched a calling specimen. Thus Hyla uranochroa 

 had a less metallic note than Hyla alhomarginata and both 

 were louder than the Phyllobates, yet the general impression 

 was much the same. 



The two Hylas and two of the Phyllobates were observed 

 most carefully at a place called La Loma where we camped 

 for a little over a week. This was in rain forest near the 

 trail from Chiriquicito to Boquete, and at an altitude of about 

 2,000 feet. Here, in a little brook, we found four sorts of tad- 

 poles. Two of these we traced to two Hylas which we had 

 previously caught ; the other two later proved to be Phyllo- 

 ])ates. Two lots of eggs were found, and as the Phyllobates 

 males carried their tadpoles to the stream, it seems fair to 

 assume that the eggs were those of the two Hylids. The four 

 tadpoles from La Loma were all traced to their respective 

 adults by complete series of transforming young. 



Hyla uranochroa Cope 



Eggs assumed to be those of this species were found at- 

 tached to a leaf overhanging the stream. The eggs when 

 found contained well developed tadpoles. This form of egg- 

 laying has been reported for Agalychnis and for Phyllome- 

 dusa. Hyla uranochroa has much the appearance of an Aga- 

 lychnis, as it is uniform green, with very prominent red eyes. 

 The technical characters are those of Hyla. The species was 

 never seen on the ground or in the water, and the calling indi- 

 viduals were always on leaves; even the transforming speci- 



