Be

See tS Ta VG Xi Eee. eS ae
be hd) eX Oe =< Vj “oF AS -
eS EWAN ‘

ie]

VAAD

“)

FEM

RAALARARCRAAAL AAR AAAAAAR AAAS AAS AAD

=

INTRODUCTION.

x a

i

:
E

Te

1 upon being disturbed fly off to the forest and take shelter among the trees, upon which they readily
anc being

perch and walk along the branches with ease.

Of those species with which we are best acquainted, the females are found to differ from the males in

being of a more diminutive size, and in having the markings of the head and throat less strongly con-
5 o

trasted; for instance, the throat of the female of O. Virgimanus is brown, while that of the male is white.

The species are—

 

1. Ortyx Virginianus . ; . ; ; ; . . eae

2. Cubanensis . : : : : : , : eae
3. —— castaneus . : : : ; : Pl. I.
4. —— nigrogularis : : : ; : ; : : BE ye

The O. nigrogularis is distinguished from every other by the strongly-defined crescentic markings of the
under surface; it is so rare in the continental collections, that the Museum at Brussels is the only one in
which I have observed it. Iam indebted to the Earl of Derby and the Viscomte DuBus for the loan of the
specimens from which my figures and descriptions were taken.

d. Ortyx pectoralis ‘ Eve

: . : : ; : PV

6.

 

Coyolcos

The second section comprises two species, which, from the great size of their nails, I propose to form
into a distinct genus under the title of

CYRTONYX,

WITH THE FOLLOWING CHARACTERS :—

Rostrum 7 RODS TUITE mnTeneme . : :
n breve, et robustum, culmine arcuato, et a basi deorsim curvato, tomiis acutis; mandibuld inferiore recta,
cum denticulis S ibus anic Ete . . ; ; : é
nticulis duobus levibus apicem versus; naribus magnis, membrana obtectis et circumdatis ; caput,
cristé occipitali TA ap ates oe oe ae ; ae
ceipitali plumosd, et retrorsd, decoratum; orbitis plumis indutis ; ale paulo elongate, tertiariis
superimpendentibus, et quam re

miges primarice longioribus ;

Cc auda bi €V1s Sy Velexaea t ect I icibus di S tincta, mo :
xa a | >
lay 3 e culati, 1 di ce No} 1 & Ss b 5 S rtim di 1to inter1 re I ‘
t St J ti d m¢ Cc lo 1g ’ et robust 3 digiti rev ibu 5, preesert & O alluce ¢ b ‘

et alté posit UngurbUus i LO Ss Ss r 1s d c ] 1ce SSIS
0 > U uy 4 b Oke gn > elongatis, cu vat > aU apicem crassis.

3ull short and r
nd robust; ¢ mn arche eee He B LA. -
3 culmen arched and gradually curving downwards from the base; tomia sharp ; lower man-
dible straight, with tw

OFSliclita entationerneanrc len: i .
ght dentations near the Up; nostrils large, covered and bordered with a membrane ;