The BEAUTIFUL TROGON (_Calurus Pharomacrus_ or _C. antisianus_)--(See
Coloured Plate XXV.)--is recognisable from the Peacock Trogon by a bunch
of hair-like feathers on the region of the beak, and by the inferior
length of the long feathers on the wing and tail. The coloration of the
plumage is almost identical, except that the tail-feathers are quite white
underneath, and the beak of a yellowish shade. The body is fourteen inches
long; the wing measures seven inches and a half, and the tail six inches
and a half. D'Orbigny discovered this bird in Bolivia, where it frequents
the vicinity of the rivers.