128 U. S. NATIONAL MUSEUM BULLETIN 2 06 



lar ridge encircling upper part of tympanum and descending diagonally 

 behind it to the axilla; skin of throat and chest smooth, that of belly 

 and lower part of fem.ur coarsely granular; a skinfold across the chest. 

 A very large median external vocal sac. 



Dimensions. — Head and body 19 mm.; head length 6.5 mm., width 

 6 mm.; femur 9 mm.; tibia 10 mm.; foot 8.5 mm.; hand 5.5 mm. 



Color in alcohol. — Dorsal ground color cinnamon; a large chocolate 

 spot between the eyes, its anterior border marked off by a row of 

 sepia spots forming a slightly darker crossband between the eyes, its 

 posterior border by a similar, darker, curved band across the nape; a 

 large X-shaped mark composed of small black dots on the anterior 

 half of the back, its anterior prolongations extending to the eyelids, 

 its posterior arms fading out on the dorsolateral region behind the 

 axilla; an aggregation of dark dots making an irregular dark blotch 

 on the sacral region; knee and heel with a dark patch; a heavy 

 crossbar across upper tibia, with a lighter one on each side; forearm 

 with dark crossbars; upper arm with a dark stripe anteriorly; femur 

 immaculate light cinnamon; ventral surface uniform cinnamon. 



Variations. — -The specimens at hand seem to be constant in both 

 structure and coloration. In one of the females the heel comes barely 

 to the center of the eye; in all others to the anterior corner. Two or 

 three of the specimens have the snout a little flattened at the tip, and 

 the vomerine teeth, while always distinctly visible, are sometimes less 

 strongly developed than in the described specimen. The toes and 

 fingers show about the same degree of webbing and size of disks. The 

 interorbital area is light in some of the specimens, marked off only by 

 the interorbital bar anteriorly and by the converging anterior arms of 

 the dorsal X mark posteriorly. The largest male measures 22 mm. and 

 the largest female the same. 



Remarks. — In color pattern this species is somewhat suggestive of 

 H. nana, H. goughi, and H. decipiens. From the first it can easily be 

 distinguished by its much stouter body, and from the two last by its 

 narrower head, and also because its dorsal pattern has a true X shape, 

 instead of being composed of nearly parallel or somewhat diverging 

 lines which do not meet in the midlme. 



Specimens examined 

 BRAZIL: 



DiSTRicTO Federal: Manguinhos, USNM 97361-4, Venancio, January 1935. 



Santa Catarina: Humboldt, USNM 66564 (type of H. werneri), Fritsohe. 

 November 1918; USNM 66562-3, 66565-6, 101445-6, 118242 (with same 

 data, all paratypes of H. werneri); BM (2); MZUM 58512 (10). 



Sao Paulo: Campo Grande, USNM 102302, Museu Paulista. 



