14 U.S. NATIONAL MUSEUM BULLETIN 2 88 



d 2 . Heel reaching to posterior border of eye; usually a wide light mid- 

 dorsal stripe and a pair of dorsolateral stripes; size to 16.5 mm. 



D. minutus ventrimaculatus 

 c 2 . No conspicuous light spot below upper arm; size to 17.5 mm. 



D. minutus minutus 

 b 2 . Size medium, up to 38 mm. 



c 1 . Dorsum black with large or small light spots. 



d 1 . Many small white spots evenly scattered on back; size to 37.5 mm. 



D. tinctorius wittei 

 d 2 . Usually a large white spot on snout and another between shoulders; 



size to 38 mm D. tinctorius histrionicus 



c 2 . Dorsum not black. 



d 1 . Dorsum pale, usually with large dark irregular spots; size to 35.5 mm. 



D. tinctorius chocoensis 



d 2 . Dorsum olive-gray with many irregular small black spots (in alcohol; 



said to be scarlet in life) ; size to 32 mm. . . . D. tinctorius confluens 



Dendrobates trivittatus (Spix) 



Plate 5g-i 



1824. Hyla trivittata Spix, p. 35, pi. 9, fig. 1 (type locality, Teffe River, Brazil). — 

 Tschudi, 1838, p. 71. 



1824. Hyla nigerrima Spix, p. 36, pi. 9, fig. 2 (type locality, Ecgd, Amazonas, 



Brazil).— Lutz and Kloss, 1952b, p. 669. 



1825. Hyla biviltata (lapsus for trivittata). — Boie (in Wied-Neuweid), 1825, 



p. 363. 



1830. Dendrobates trivittatus .— Wagler, 1830, p. 202.— Peters, 1873a, p. 213 — 

 Cope, 1874b, p. 129; 1885, pp. 94, 96.— Boulenger, 1882a, p. 144; 

 1884, p. 636; 1888d, p. 455.— Kappler, 1885, p. 858.— Gadow, 1901, 

 p. 273. — Brandes and Schoenichen, 1901, p. 404.— Lidth, 1904, p. 

 92.— Andersson, 1906, p. 2; 1945, p. 4.— Baumann, 1912, p. 161 — 

 Fowler, 1913, p. 164.— Beebe, 1919, p. 210.— Miranda-Ribeiro, 1926, 

 p. 181, fig. 98.— Ahl, 1929, p. 148.— De Witte, 1930, p. 230.— Crawford, 

 1931, p. 37.— Crawford and Jones, 1933, p. 91.— Mello Leitao, 1937, 

 p. 292.— Parker, 1939, p. 87.— Laurent, 1942, p. 8, figs. 7-12.— Schmidt 

 and Inger, 1951, p. 448. — Lutz and Kloss, 1952, p. 665. — Cochran, 

 1961, p. 112, photograph.— Gorham, 1963, p. 25. 



1830. Dendrobates nigerrimus. — Wagler, 1830, p. 202.— Fitzinger, 1843, p. 32. — 

 Steindachner, 1864, p. 257, pi. 13, figs. 2, 2a-d. 



1841. Dendrobates obscurus Dumeril and Bibron, p. 655 (type locality un- 

 known). — Guichenot, 1855, p. 87, pi. 18, fig. 2. — Lutz and Kloss, 

 1952, p. 669. 



1958. Dendrobates pictus (not of Dumeril and Bibron). — Goin and Layne, 

 1958, p. 102, photograph. 



Description. — USNM 146832, an adult female from Puerto Narifio, 

 Amazonas, Colombia. Tongue half as wide as mouth opening, ovate, 

 its posterior border free and unnotched; snout very broadly rounded 

 when viewed from above, rounded in profile, the upper jaw extending 

 well beyond the lower. Nostrils lateral, projecting, their distance 

 from end of snout one-half their distance from eye. Canthus rostralis 



