rr LLOYD’S NATURAL HISTORY. 
THE AMERICAN PARTRIDGES AND QUAILS. 
SUB-FAMILY ODONTOPHORIN:. 
The following genera of American Partridges and Quails 
are distinguished from all the Pasianide previously described 
by having the cutting edge of the lower mandible serrated, 
and together form the Sub-family Odontophorine (see vol. 1. p. 
78). They vary considerably in size, some, suchas Dendrortyx, 
being as large as the Common Partridge or slightly larger, 
while others are smaller than the Common Quail. In some 
instances the tooth-like process on the lower mandible is less 
distinct, but in the great majority of species it is easily recog- 
nised. 
THE LONG-TAILED AMERICAN PARTRIDGES. GENUS 
DENDRORTYX. 
Dendrortyx, Gould, Monogr. Odontoph. pl. 20 in pt. 1. (1844); 
Introd. p. 20 (1850). 
Type, D.,macrurus (J. & S.). 
Plumage alike in both sexes. 
A short crest ; a naked space round the eye. 
First primary flight-feather sch shorter than the tenth; fifth 
longest. 
Tail as long, or nearly as long as the wing, wedge-shaped, 
composed of ¢ze/ve feathers, the middle pair being much longer 
than the outer pair. 
Tarsus shorter than the middle toe and claw. 
Bill very stout and short. 
Three rather large species about the size of the common 
Grey Partridge are known. 
I. THE LONG-TAILED PARTRIDGE. DENDRORTYX MACRORUS. 
Ortyx macroura, Jard. and Selb. Ill. Orn. i. text to pl. 38 
and pl. 49 (1825-39). 
