TROGON. 493 
and Nicaragua, it reappears in Costa Rica, where it has been found by most collectors, 
and also in many places in the district of Chiriqui in the State of Panama, and as far 
in this direction as Santa Fé, which seems to be its extreme southern limit, as we have 
no tidings of it on the isthmus itself or any place on the mainland of South America. 
The habits of this species resemble those of 7. mexicanus. Of its nest and eggs 
nothing is on record. . 
Regarding the orange-breasted bird usually known as Trogon aurantiiventris, which 
was described by Gould in 1856 2° from a specimen obtained by T. Bridges in Chiriqui, 
and has since been traced to Guatemala?! and Cordova 2? in Mexico, we have little 
doubt that it is only an aberrant form of 7. puelia. Though not nearly so common, 
the range of the two birds is practically the same; moreover, in the series from the 
more southern parts of its range, the orange colour of the abdomen varies from a 
lighter to a darker redder tint. 
Mr. Ogilvie-Grant, when writing the Catalogue of Trogonide in the British Museum, 
expressed his great doubt as to the distinctness of the two birds °°. We now go a little 
further and unite them. 
5. Trogon atricollis, 
Trogon curucui, var. y, Gm. Syst. Nat. 1. p. 403°. 
Trogon atricollis, Vieill. N. Dict. d@’Hist. N. viii. p. 318°; Gould, Mon. Trog. t. 8°; ed. 2, 
t. 144; Cassin, Pr. Ac. Phil. 1860, p. 186°; Scl. & Salv. P. Z. 8. 1864, p. 364°; Salv. 
P. Z. S. 1867, p. 1517; 1870, p. 202°; Ibis, 1872, p. 321°; Ridgw. Pr. U.S. Nat. Mus. x. 
p- 591"°; Zeledon, An. Mus. Nac. Costa Rica, 1887, p. 120‘; Grant, Cat. Birds Brit. Mus. 
Xvi. p. 455", 
Trogon tenellus, Cab. J. f. Orn. 1862, p. 173'°; Lawr. Ann. Lyc. N. Y. viii. pp. 3, 1845 ix. 
p. 119"; v. Frantz. J. £. Orn. 1869, p. 312. 
Trogon atricollis tenellus, Richm. Pr. U. 8. Nat. Mus. xvi. p. 513”. 
Trogon aurantiiventris, Lawr. Ann. Lyc. N. Y. vii. p. 290 (nec Gould) ”. 
Supra nitente viridis, tectricibus supracaudalibus vix cyaneo tinctis ; loris, capitis lateribus et mento nigris, gula 
et pectore dorso concoloribus, abdomine citrino, tectricibus subcaudalibus concoloribus, torque pectorali 
vix obvia albida; alis nigris albo limbatis, tectricibus alarum albo minute irroratis ; caud rectricibus 
duabus mediis uropygio concoloribus nigro terminatis, rectricibus tribus externis nigris extrorsum albo 
regulariter transfasciatis et albo late terminatis, reliquis in pogonio externo duabus mediis concoloribus ; 
oculorum ambitu ceruleo; rostro viridescente, pedibus plumbeis. Long. tota 9:5, ale 4°3, caude rectr. 
med. 5:5, rectr. lat. 3:0, tarsi 0°55. 
Q supra brunnea, gutture toto et pectore concoloribus, abdomine et tectricibus subcaudalibus pallide citrinis, 
torque pectorali alba; alis nigricantibus, extrorsum albo limbatis, tectricibus alarum brunneis minute 
nigro irroratis ; caude rectricibus duabus mediis castaneis nigro terminatis, rectricibus tribus externis sicut 
in mare fasciatis. (Descr. maris et femine ex La Libertad, Nicaragua. Mus. nostr.) 
Hab. Honvuras, Segovia R. (Townsend !°); Nicaragua, Chontales (Belt °), La Libertad 
and §. Domingo in Chontales (W. B. Richardson), Escondido R. (Lichmond '*), 
Greytown (Lolland °); Costa Rica (v. Frantzius}° \"), Pacuare, Angostura 
(Carmiol 6, Zeledon"!), Barranca, Guaitil (Carmiol 16) Las Trojas (Zeledon 1%) ; 
