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16 INR ODUCHTON.
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Nearly all the known species of this genus are about the same size as the members of the genus Ortye.
they Ae all adorned with an elongated crest, which in most of them when erect has a forward curvature,
a eives the bird a very elegant and sprightly appearance. The tail-feathers and the upper surface
Peel are more minutely freckled or moth-like in their markings than those of the members of any
of the preceding groups ; they are also distinguished by the more well-defined spotted markings of the
flanks. The plumage of the sexes differs considerably ; for, although the female is decorated with a similar
style of colouring, the markings are much less decided and brilliant than in the male. The range of the
members of this genus extends from Mexico to Brazil. Some of the species inhabit the temperate regions

of both the Mexican and Columbian Andes.

The species are :—

9. Eupsychortyx cristatus : , : ON
10. —————— leucotis . : : Q : : : PIES
11. —————— Sonninii . : : : : : le, OXI.
12. ——————. affinis.

Eups. criste plumis elongatis, et fuscescenti-cervinis ; gula ferrugineé, apud mentum nigro indistincté notata ;

pectore pallide vinaceo-cinereo.

Crest feathers lengthened and of a brownish buff; throat rust-red, with some indistinct black marks on the

chin; chest pale vinaceous grey.

Ortyx afinis, Vigors, in Proc. of Comm. Sci. and Corr. of Zool. Soc. Part I. Danse

From the time Mr. Vigors characterized this bird as distinct, until the present moment, I have always
had some doubt of its specific value; yet I must admit that upon every occasion that I have compared
it with its néar ally EL. Sonninit, I could not but perceive that it exhibits sufficient differences to warrant its

Separation: future research alone can decide whether the two birds be identical or not. It is smaller than
FE. Sonninii in all its admeasurements, particularly in the shortness of its tail, is much lighter in colour,
and possesses some black marks on the throat, of which I have never observed even a trace in any specimen
of E. Sonninii that I have examined.

Habitat. Said to be Mexico.

The original of Mr. Vigors’ iption is i Z
£ r. Vigors’s descr i i I
g g description is in the Collection of the Zoological Society; I possess another
precisely the same in size and plumage. which wac 1 i i judging fi in
| and plumage, which was obtained in Paris; both of these, judging from their
plumage, are adult males. I have 1 1
s S. € not considere -cessar 1 ] i
é ot considered it necessay y to figure this species.