10 U. S. NATIONAL MUSEUM BULLETIN 206 



Genus Dendrophryniscus Espada 



1871. Dendrophryniscus Espada, p. 65. (Genotype, Dendrophryniscus brevipolli- 

 catus Espada.) 



Generic diagnosis. — Pupil transverse. Tongue oblong, entire, free 

 behind. Vomerine teeth, none. Tympanum hidden. Fingers and 

 toes webbed at the base, the tips dilated. No omosternum; sternum 

 with a bony style. 



Dendrophryniscus brevipollicatus Espada 



Plate 2, Figures a, b 



1870. Dendrophryniscus brevipollicatus Espada, p. 65 (type locality, Corcovado, 

 [city of] Rio de Janeiro) ; 1875, pi. 6, figs. 3, 3, a-f . — Boitlenger, 1882a, 

 p. 274.— Gadow, 1901, p. 224.— Baumann, 1912, p. 162.— Nieden, 1923, 

 p. 545.— Noble, 1926b, p. 1. — Miranda-Ribeiro, 1926, p. 136, figs. 

 70, 71.— DE WiTTE, 1930a, p. 225.— A. Lutz, 1932a, pp. 775-6.— Myers, 

 1946, pp. 15, 32.— Carvalho, 1949, p. 223. 



1920. Atelopus imitator Miranda-Ribbiro, 1920e, p. 310 (type locality, Santos, 

 Cubatao, Sao Paulo). — Noble, 1926b, p. 1. — Luederwaldt, 1929, p. 39. 



1926. Dendrophryniscus brevipollicatus imitator Miranda-Ribeiro, p. 139. 



1926. Dendrophryniscus brevipollicatus lauroi Miranda-Ribeiro, p. 138, fig. 72 

 (type locality, Angra dos Reis, Rio de Janiero). 



1926. Dendrophryniscus brevipollicatus lutzi Miranda-Ribeiro, p. 138 (type 

 locality, Corcovado, [city of] Rio de Janeiro) . 



Description. — ^Adult female, USNM 96273, Tijuca, District© Federal. 

 Head anteriorly narrow and pointed, the snout projecting far beyond 

 the front of the lower jaw, slanting backwards in profile, about l}i 

 times the length of the eye; nostrils lateral, scarcely visible from above, 

 near the snout tip, separated from each other by a distance about equal 

 to the interorbital width; no external tympanum visible; tongue small, 

 equal to about one-fourth the mouth-opening, oval and free behind; 

 canthus rostralis rounded but distinct, loreal region flat and almost 

 vertical ; area between anterior parts of canthi concave, with the nasal 

 bones making small elevations on either side ; eye large and prominent, 

 projecting moderately, its diameter equal to its distance from nostril; 

 interorbital diameter 1% times the width of upper eyelid, VA times the 

 distance between nostrils. Fingers webbed at base, first very short, 

 fourth much longer than second, extending almost to base of disk of 

 third, all with dermal ridges along the sides; subarticular tubercles 

 low and flat, not well developed; toes one-fourth webbed, with dermal 

 fringes, third and fifth subequal, reaching halfway to base of ante- 

 penultimate phalanx of fourth; inner metatarsal tubercle not de- 

 veloped, outer one an oval flat tubercle; a pronounced inner tarsal 

 ridge extending from first toe to heel and a shorter outer tarsal ridge 

 on the proximal part of tarsus. Body very elongate and slender, in 



