TEOGON. 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 F6, 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 T. 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 20 from a specimen obtained by T. Bridges in Chiriqui, 

 and has since been traced to Guatemala ^4 and Cordova ^^ in Mexico, we have little 

 doubt that it is only an aberrant form of T. puella. 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 Trogonidae in the British Museum, 

 expressed his great doubt as to the distinctness of the two birds so. We now go a little 

 further and unite them. 



5. Trogon atricollis. 



Trogon curucui, var. 7, Gm. Syst. Nat. i. p. 403 '. 



Troffon atHcoUis, YieiM. N. Diet. d'Hist. N. viii. p. 318'; Gould, Mon. Trog. t. 8'j ed. 2, 



t. 14*; Cassin, Pr. Ac. Phil. 1860, p. 136'; Scl. & Salv. P. Z. S. 1864, p. 864"; Salv. 



P. Z. S. 1867, p. 151^ 1870, p. 203 ^ 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. 



xvii. p. 455 ". 

 Troffon tenellus, Cab. J. f. Orn. 1862, p. 173"; Lawr. Ann. Lye. N. Y. viii. pp. 3", 184"; ix. 



p. 119"; V. Frantz. J. f. Orn. 1869, p. 312". 

 Trogon atricollis tenellus, Richm. Pr. U. S. Nat. Mus. xvi. p. 513 ''. 

 Trogon aurantiiventris, Lawr. Ann. Lye. N. Y. vii. p. 290 (nee Gould) ". 



Supra nitente viridis, tectricibus supracaudalibus vix oyaneo 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 ; caudae rectricibus 

 duabus mediis uropygio concoloribus nigro terminatis, rectricibus tribus externis nigris extrorsum albo 

 regulariter transfasciatis et albo late terminatis, reiiguis in pogonio externo duabus mediis concoloribus ; 

 oculorum ambitu cseruleo ; rostro viridescente, pedibus plumbeis. Long, tota 9-5, alse 4-8, caudse rectr. 

 med. 5"5, rectr. lat. 3-0, tarsi 0'55. 



2 supra brunnea, gutture toto et pectore concoloribus, abdomine et tectricibus subcaudalibus paUide citrinis, 

 torque pectorali alba ; alis nigrieantibus, extrorsum albo limbatis, tectricibus alarum brunneis minute 

 nigro irroratis ; caudas rectricibus duabus mediis castaneis nigro terminatis, rectricibus tribus externis sicut 

 in mare fasciatis. (Descr. maris et feminas ex La Libertad, Nicaragua. Mus. nostr.) 



Hah. Honduras, Segovia R. (Townsend 1°) ; Nicabagua, Chontales {Belt ^), La Libertad 

 and S. Domingo in Chontales ( W. B. Eichardson), Escondido R. {Richmond ^*), 

 Greytown {Holland ^^) ; Costa Rica {v. Fmnizius ^^ "), Pacuare, Angostura 

 {Carmiol^^, Zeledon'^^), Barranca, Guaitil {Carmiol^% Las Trojas {Zeledon ^^) ; 



