4, TYRANNIDA., 
considerably below the closed mandible, there is a distinct notch at the end of the 
tomia. The tarsi are short and stout, covered with distinct scutellz; the toes short, the 
outer slightly shorter than the inner. The third and fourth quills are equal and 
longest—2nd > 5th, lst=6th. The tail is nearly square at the end, with the exception 
of the two middle feathers, which are greatly elongated. The web on each side of 
these feathers is narrow in the middle but widens gradually towards the end, forming 
an oar-shaped spatule. . | 
1. Copurus leuconotus. 
Copurus leuconotus, Lafr. Rev. Zool. 1842, p. 835°; Lawr. Ann. Lyc. N. Y. vii. p. 8277, ix. 
p. 110°; Scl. & Salv. P. Z. 8. 1864, p. 858%, 1867, p. 279°, 1879, p. 511°; Salv. P.Z.S. 
1867, p. 146"; Ibis, 1872, p. 318°; v. Frantz. J. f. Orn. 1869, p. 306°; Nutt. & Ridgw. 
Pr. U.S. Nat. Mus. vi. p. 402; Scl. Cat. Birds Brit. Mus. xiv. p. 51”. 
Copurus pecilonotus, Cab. in Schomb. Guiana, iii. p. 702”. 
Niger ; fronte, loris et superciliis albis ; capite summo griseo-fusco ; dorso medio grisescenti-albo, uropygio albo: 
rostro et pedibus nigris. Long. tota (cauda inclusa) 10-0, ale 3:0, caude rectr. med. (pogoniis medialiter 
attenuatis) 7-5, reliquis 2°1, rostri a rictu 0°5, tarsi 0-5. (Descr. exempl. ex Tucurriqui, Costa Rica. 
Mus. nostr.) 
Hab. Nicaracua, Chontales (Belt *), Los Sabalos (Nutting 1°), Blewfields (Wickham 5) ; 
Costa Rica, San José, Pacuar (Carmiol®), Turrialba (v. Frantzius °), Tucurriqui 
(Arcé); Panama, Santa Fé (Arcé), Lion Hill Station (IM‘Zeannan2+), Paraiso 
Station (Hughes).—CotomBia ®; W. Ecuapor ! ; Gurana !2; Boxrvia !2 
The range of this species seems confined to Western Ecuador, Colombia west of the 
Andes of Bogota, and Central America as far north as Nicaragua. It has also been 
traced to Guiana 1”, but its presence in Bolivia requires confirmation. The allied form 
C. colonus (of which we believe C. fuscicapillus to consist, only of darker-headed 
individuals) ranges throughout the Valley of the Amazons from the eastern slope of 
the Andes of Peru, Ecuador, and Colombia to South-eastern Brazil. The two birds 
may readily be recognized by the presence in C. lewconotus of a light grey dorsal stripe 
extending from the hind neck to the rump; in C. colonus the back is wholly black. 
Salmon met with C. leuconotus at Remedios in the Colombian State of Antioquia °, 
but he did not find its nest and made no note on its habits. Most other collectors are 
also silent on this subject, but Mr. Nutting, who found the species rather common at 
Los Sabalos on the Rio San Juan del Norte in Nicaragua, says that it builds a nest in a 
hole in a dry tree after the manner of a Woodpecker—perhaps the abandoned nest- 
holes of the latter 1°. The note he describes as weak. 
PLATYRHYNCHUS. 
Platyrhynchus, Desmarest, Hist. Nat. Tod. sub t. 72 (1805) ; Scl. Cat. Birds Brit. Mus. xiv. p. 64. 
Platyrhynchus is a well-marked genus containing nine species, which are distributed 
