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Trogons

First Edit. There is 2d edit with many more species

T. mexicanus

—   elegans

—   collaris, yet ♀ beautiful

—   variegatus do

—   atricollis

—   meridionalis

—   melanopterus

—   citreolus

—   aurantius

—   surrucura

—   massena

25 species all of which have figures

2 sexes & all differ. ♂ always more beautiful

one partial example T. reinwardtii sexes nearly alike but not quite

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(over)

113v

It is superfluous to give example — give aggregate from numbers in Gould — differences sometimes great, sometimes small

Reference:

Gould, John. 1835-1838. A monograph of the Trogonidae, or family of Trogons. 1 vol. (3 parts). London: the author.