324 TANAGEIDiE. 



only one, Arremon aurantiirostris, is found within our area, where, however, it is widely 

 distributed. The South-American species are chiefly from the Subandean regions, but 

 the best known of all, A. silens, spreads over the whole of the eastern portion of the 

 continent, from Guiana and Amazonia to Brazil. 



In structure and coloration Arremon is very homogeneous. The bill is straight, 

 rather high, short, and conical, with an obsolete subterminal maxillary notch. The 

 wings are short and rounded ; the tail also rather short and much rounded ; the tarsi 

 are somewhat long, appropriate to a semiterrestrial habit. Most of the species have a 

 black head, and in many of them is a vertical median cinereous stripe ; the under- 

 surface is white, and many species have a conspicuous black pectoral band. The bill 

 is often of a rich orange or yellow ; the back is either olivaceous or grey. 



The species all appear to frequent the denser forests, where they are to be found in 

 the underwood or on the ground. 



1. Arremon aurantiirostris. 



Arremon aurantiirostris, Lafr. Eev. Zool. 1847, p. 72'"; Des Murs, Icon. Om. t. 55 ^j Bp. 



Consp. i. p. 488 ' ; Scl. P. Z. S. 1856, p. 83 * ; 1859, p. 377 ' ; Scl. & Salv. Ibis, 1860, p. 32 = ; 



P. Z. S. 1864, p. 351 ' ; Lawr. Ann. Lye. N. Y. vii. p. 298 ' ; viii. p. 180 ' ; ix. p. 102 " ; Salv. 



P. Z. S. 1867, p. 140"; 1870, p. 188"; Ibis, 1872, p. 317 '^ v. Frantz. J. f. Orn. 1869, 



p. 300". 

 Arremon rufodorsalis, Cassin, Pr. Ac. Phil. 1865, p. 170"; Lawr Ann. Lye. N. Y. ix. p. 102"; 



Salv. Ibis, 1874, p. 308". 



*Supra oleagineus, cauda fusoesoentiore, capite nigro, superciliis elongatis albis, stria verticali cinerea ; subtus 

 gula et abdomine medio albis, pectore late nigro, hypoctondriis fuscis oleagiaeo iadutis ; campterio alari 

 Isetissime aiirantiaco ; rostro aurantiaco, pedibus cameis. Long, tota 6'5, alae 3'2, caudae 3"0, rostri a 

 rictu 0-7, tarsi 1. (Descr. maris ex Santa Fe, Panama. Mus. nostr.) 

 5 mari persimilis. 



Hah. Mexico, Playa Vicente {Boucard s) ; British Honduras, Belize {Blancavieaux) ; 

 Guatemala, Coban^, Choctum, Chisec {0. S. & F. D. G.}; Nicaragua, Chontales 

 (Belt 12), Greytown (Holland ^) ; Costa Rica (v. Frantzius i*), San Mateo (Cooper ^% 

 Dota (Zeledon i"), Guaitil (Carmiol ^% Tucurriqui (Arce), Turrialba (Carmiol ^^ ^^ ; 

 Panama, Bugaba ^^, Mina de Chorcha ^^, Cordillera del Chucu ^^, Santa Fe ^i (Arci), 

 Lion HUl (M'Leannan "^ ^), Panama (Helattre ^ ^ *). 



Lafresnaye's description of this species was based upon Panama specimens obtained 

 by the French collector Delattre i. We have since both received skins from the isthmus 

 and observed the bird in that region. In May 1873 Salvin found a nest in the forest 

 near Obispo Station, which was placed on the ground and prettily screened by an 

 overhanging frond of an Adiantum. This nest contained young, which were not 

 disturbed. 



From Panama^, aurantiirostris has been traced northwards to South Mexico, where, 

 however, it is not common, having been found at Playa Vicente alone by M. Boucard ^. 



