282 U. S. NATIONAL MUSEUM BULLETIN 206 



the specimen except^in one other matter: the spines at the base of the 

 first finger are not mentioned in the redescription of vomerina, but 

 instead appear at the end of the discussion of bufonium. The plate 

 legend is likewise unfortimately mixed up, for his figure 39, said to be 

 nasuta (=nasus) is in reality that of the larger cotype of vomerina, 

 while his figure 17, said to represent vomerina, corresponds to USNM 

 67445, an example of E. nasuta which Girard had from the U.S. 

 Exploring Expedition. His figure 26, representing the spiny first 

 finger of vomerina, is wrongly attributed to bufonium in the legend. 

 Apparently bufonium may be considered a synonym of nasus, since 

 much subsequent collecting has revealed only the one form of Elosia 

 from near the city of Rio de Janeiro, and it is fairly certain that the 

 U. S. Exploring Expedition material comes from the immediate 

 vicinity of the city. The type of bufonium is missing from the U.S. 

 national collection. The synonymy of the type species, nxisus, was 

 worked out largely by the late Dr. Stejneger. 



For a statistical analysis of measurements of the species of Elosia 

 here discussed, see pages 373 and 383. 



Elosia aspera L. Muller 



Figure 24 



1923. Elosia nasus (not of Lichtenstein) Miranda-Ribeiro, 1923b (part), p. 815, 



pi. 3, figs. 1-7; 1926, p. 32 (specimens from Alto da Serra, Sao Paulo.) — 

 deWitt, 1930a, p. 221. 



1924. Elosia aspera L. Miller, 1924a, p. 173 (type locality, Barreira, near 



Teres6polis, Rio de Janeiro); 1927, p. 270.— A. Lutz, 1931, pp. 234, 241. 



Description. — Adult male, USNM 97833, from Alto da Serra, Sao 

 Paulo. Vomerine teeth in two small, heavy, well-separated slanting 

 patches between and behind the choanae; tongue nearly one-half the 

 width of mouth-opening, oval, not indented on its free posterior 

 border; snout rounded when viewed from above, truncate and slanting 

 backwards to the upper lip border in profile, the upper jaw extending 

 considerably beyond the lower; nostrils lateral, scarcely projecting, 

 about halfway between eye and tip of snout, separated from each 

 other by an interval 1% times as great as their distance from eye. 

 Can thus rostralis sharply defined, the loreal region vertical and con- 

 cave, similar to that of E. nasus. Eye large and prominent, its diameter 

 equal to its distance from end of snout; interorbital diameter equal 

 in width to the broad upper eyelid, about two-thirds that of distance 

 between nostrils. Tympanum large and distinct, about one-half the 

 diameter of eye, separated from eye by an interval equal to one-half 

 its own diameter. Fingers free, their tips dilated into disks twice 

 the width of terminal phalanx, with a pair of distinct pads separated 

 by a longitudinal furrow on top of each disk; fourth finger much 

 longer than second which reaches to base of penultimate phalanx of 



