2 U. S. NATIONAL MUSEUM BULLETIN 206 



c'. Digits normally developed; head squarish in front; feet rather swollen; 

 dorsum usually black, variegated with bright yellow or red. 



Atelopus (p. 2) 

 (?. Digits much reduced; a large bony plate on back; body bright yellow. 



Brachycephalus (p. 4) 

 6*. Pectoral girdle partly fused; skin rough. . . . Dendrophryniscus (p. 10) 



The name Hylaplesia Boie, used by A. Lutz (1926a, p. 8) for Den- 

 drobatesflavopidus, was relegated to the synonymy of Hyla (genotype, 

 Hyla punctata) by Stejneger (Copeia, 1937, No. 2, p. 139). 



GJ«nus Atelopus Diwneril and Bibron 



1841. Atelopus DumjSril and Bibron, p. 660. (Genotype Atelopus flavescens 

 Dum6ril and Bibron.) 



Generic diagnosis. — Pupil horizontal. Tongue elliptical, entire, free 

 behind. Palate smooth. No tym.panic disk. Fingers free or webbed 

 at the base; toes more or less webbed, the tips not dilated into regular 

 disks. Outer metatarsals united. Coracoids and precoracoids more 

 or less divergent, connected by the epicoracoid cartilage; no omoster- 

 num; sternum cartilaginous. Diapophyses of sacral vertebra mod- 

 erately dilated. Terminal phalanges simple. 



Atelopus moreirae moreirae Miranda-Ribeiro 



Plate 1, Figures a-c 



1920. Atelopus moreirae Miranda-Ribeiro, 1920e, p. 307, pi. (type locality, 



Itatiaia, Rio de Janeiro); 1926, pp. 174, 224. 

 1938. Dendrophryniscus moreirae Ahl, p. 158, fig. 1. 



Description. — USNM 101725 (topotype), Itatiaia, K,io de Janeiro. 

 Tongue slightly less than one-half the diameter of the very narrow 

 mouth-opening, elongate, not indented on its very free posterior bor- 

 der; snout short, shaped like the half of a hexagon, truncate at the tip 

 from above, slanting backward in profile so that the upper jaw extends 

 considerably beyond the lower; nostrils lateral, almost at the extreme 

 tip of snout, not visible from above, not projecting, separated from 

 each other by an interval equal to their distance from eye. Canthus 

 rostralis prominent although rounded; loreal region flat and vertical, 

 continuous with the line to the upper lip border. Eye large, fairly 

 prominent, with a very heavy upper lid and a rather small aperture; 

 diameter of orbit equal to its distance from end of snout, that of aper- 

 ture a little less than its distance from nostril; interorbital diameter 

 wider than the broad upper eyehd, a little greater than interval be- 

 tween the nostrils. Tympanum not visible. Fingers distinctly 

 webbed at the base and with lateral ridges, first shorter than second, 

 which is shorter than fourth; tips of fingers not dilated into disks; 

 subarticular tubercles of fingers small but numerous; a large meta- 



