392 



Phyllobates flotator Dunn. 



This has been seen from Suretka, Costa Rica (M. C. Z. no. 

 9819); La Loma, Panama (M. C. Z. no. 10257-62) Las Cascadas 

 (M. C. Z. no. 9989), Rio Chenillo, Balboa, Empire, Barro 

 Colorado Island (M. C. Z. no. 15289-92, 10728; Univ. Michigan 

 no. 61620, 63587-93); Punta Bruja, Pacific side (M. C. Z. no. 

 16007); Cana, Panama (U. S. N. M. no. 50177). This is the 

 common Barro Colorado species. 



Phyllobates lugubris (Schmidt). 



1858, Denkschr. Acad. Wien. 14, 1. 250, pi. 2, fig. 14. 



Type. — Krakau no. 1016 from cloud forest on Boquete trail, 

 5000-7000 feet. 



It has been seen from Talamanca Valley, Costa Rica (M. C. 

 Z. no. 9902-3); Zent, Costa Rica (M. C. Z. no. 8022, type of 

 Phyllobates beatriciae Barbour and Dunn 1921, Proc. Biol. Soc. 

 Washington 24, p. 159); Almirante, Panama (M. C. Z. no. 

 9873-7). 



The Krakau types, five in number, are completely faded, are 

 26 mm. long, and seem to have no maxillary teeth. They came, 

 apparently, from much higher than any of the others. The 

 largest of the recent specimens (and some were adult, tadpole- 

 carrying males) was 20 mm. The description gives the coloration 

 pretty exactly, except for an inverted horseshoe mark on the 

 throat, which is not present in the recent specimens (but is 

 present in recent specimens of the next form). 



I am inclined to think Dendrobates tinctorius vittatus Cope 

 1893 (Proc. Amer. Phil. Soc, p. 340) from Buenos Ayres, Costa 

 Rica, the type of which is non-existent may come in here. 



Phyllobates truncatus Cope. 



1860, Proc. Acad. Nat. Sci. Philadelphia, p. 372. 



Type. — The type, perhaps from New Grenada, is not in 

 existence. 



I have seen it from Barro Colorado Island, Panama, and from 

 Nicuesa, San Bias, Panama. Both localities are represented in 

 the Museum of Comparative Zoology. 



•The specimens seen differ as given in the key from lugubris. 

 They are all tiny, about 14 mm. long. No maxillary teeth can 



