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TROGON CITRBOLUS , Gould.
Mas. Trog. vertice, collo, dor so, guttureque carulescenti-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, rectri-
cum pogOniis externis albojimbriatis ; rostro ccerulescenti-corneo ; pedibus brunneis.
Fcem. Capite, gutture, dorsoque saturate cinereis ; rectricibus sex intermediis brunnescenti-nigris ;
in cceteris tnari simillivna.
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 o f 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 in the male.
Total length, lOf inches ; bill, 1 ; wing, 5t ; tail, 6 ; tarsi, i.
Trogon citreolus, Gould in Proc. of Zool. Soc. Part III. 1835, p. 30.
T h is interesting and very rare Trogon is a native of Mexico, and may be distinguished from all 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 birds figured in the accompanying Plate are an immature male, and an adult female. When more
fully adult, the male has the whole of the head, neck, chest, and upper surface of an uniform rich green.
The specimens from which the above description and the figures are taken form a part of the collection of
the Zoological Society, in which are also contained nearly all the species represented in the present Monograph.