TROGON CITREOLUS, Gould . 
Lemon-breasted Trogon. 
Specific Character. 
Trog. corpore supra guttureque cterulescenti-viridibus; rectricibus duabus intermediis ad apicem, 
proximarum duarum utrinque pogoniis internis, reliquisque ad basin nigris, his apicem 
versus albis; ventre citrino in aurantiacum vergente; alis brunnescenti-nigris, primariorum 
pogoniis externis albo fimbriatis; rostro ccerulescenti-corneo; pedibus brunneis. 
Foem. Capite, gutture dorsoque saturate cinereis ; rectricibus sex intermediis brunnescenti- 
nigris ; in reliquis mari simillima. 
Male. —Crown of the head, neck, back, and throat bluish green ; tips of the two middle 
tail-feathers, the internal web of the two next on each side, and the base of the 
remainder black, the rest of each feather white; abdomen lemon-yellow, passing into 
orange ; wings brownish black, the outer webs of the primaries fringed -with white ; 
bill bluish horn-colour ; feet brown. 
Female. —Head, throat, and back dark grey ; six middle tail-feathers brownish ; in other 
respects the same as the male. 
Total length 105 inches; bill 1; wing 5{; tail 6 ; tarsi §. 
Trogon citreolus. Gould, P. Z. S. 1835, p. 30.—Id. Monogr. Trog. ed. 1, pi. 13.—Gray, 
Hand-1. B. i. p. 82.—Scl. & Salv. Nomencl. Ay. p. 104. 
lucidus. Licht. in Mus. Berol. (fide Cabanis). 
Agamus citreolus. Cab. & Heine, Mus. Hein. Th. iv. p. 197. 
This interesting and very rare Trogon is a native of Mexico, and inay be distinguished from most other 
known species by the delicate lemon-yellow of the under surface, by the greater extent of the white on the 
lateral tail-feathers, and by the uniform colouring of the central portion of the wing. 
The foregoing paragraph relates all that was known of the species at the time of publication of the first 
edition of the ‘ Monograph but I have lately been indebted to my kind friend Mr. Salvin for the following 
account of the species :— 
“ Of this well-marked species but little is known. The original specimens, formerly in the collection of 
the Zoological Society, came from Mexico; but, beyond the indication of the particular places where the 
species occurs in that country, next to nothing has been added to its history. Herr Deppe, who so largely 
enriched the Berlin Museum with specimens of the natural objects of Mexico, obtained this bird at Tequistlan 
and Tehuantepec; and at this latter place Col. A. J. Grayson also met with it. The same careful explorer 
also says, in a note given in Mr. Lawrence’s “Catalogue of the Birds of North-Western Mexico” in the 
second volume of the ‘ Memoirs of the Boston Society of Natural History,’ that the bird is well distributed 
throughout the forests of the tierra caliente of that region, which includes the district round Mazatlan, where 
both Col. Grayson and Mr. Xantus procured specimens. Mr. Lawrence says that the collections sent from 
Tehuantepec by Prof. Sumichrast to the Smithsonian Institution contained numerous specimens of 
T. citreolus. At one time I thought that this Trogon might be included in the birds of Guatemala; but this 
supposition has not received actual confirmation, though I still think it far from improbable that the bird is 
to be found in the forests of the province of Soconusco, if not actually in Guatemalan territory. One point 
seems certain, that its range is restricted to the forests of the western slope of the Cordilleras, which spread 
out to the shores of the Pacific Ocean. 
“ It remains to be stated that Messrs. Cabanis and Heine, in their account of T. citreolus, place as a 
synonym T. capistratus of Lesson, described in the ‘Revue Zoologique’ for 1842, p. 136. But from the 
