DENDRORTYX. 287 
Members of this family are found in all the temperate and tropical portions of the 
globe, but no true Pheasants or true Partridges occur in America, which possesses only 
species with a serrated bill. 
Subfam. ODONTOPHORINA. 
The American Partridges, consisting of the Colins and their allies, are peculiar for 
their toothed or serrated bill, a feature found in the lower mandible of all the species 
of the New World. 
DENDRORTYX. 
Dendrortyx, Gould, Monogr. Odontoph. t. 20 (1844), Introd. p. 20 (1850); Grant, Cat. Birds Brit, 
Mus. xxii. p. 392 (1893). 
The long-tailed American Partridges form a well-marked genus, including four 
species peculiar to Mexico or Central America. They are rather large birds, about the 
size of the Common Grey Partridge, and may be easily recognized from the other 
Odontophorine by their long wedge-shaped tail composed of twelve feathers, which is 
nearly as long as the wing. The sexes are similar in plumage, the bill very stout and 
short; there is a short crest and a naked space round the eye; the first flight-feather 
is much shorter than the tenth, and the tarsus is shorter than the middle toe and claw. 
1. Dendrortyx macrurus. _ 
Ortyx macroura, Jardine & Selby, Ill. Orn. i. text to t. 38 and t. 49". 
Dendrortyx macrourus, Gould, Monogr. Odontoph. t. 20°; Grant, Cat. Birds Brit. Mus. xxi. 
p. 392 *; Handb. Game-Birds, ii. p. 112‘; Ibis, 1902, p. 237°. 
Dendrortyx macrurus, Scl. P.Z. 8. 1864, p. 178°; Sumichr. La Nat. v. p. 2297; Salv. Cat. Strickl. 
Coll. p. 572°. 
Dendrortyx oaxace, Nelson, Auk, xiv. pp. 43, 44°. 
Dendrortyx macrourus griseipectus, Nelson, 1. c, p. 44 an 
Dendrortyx macrourus striatus, Nelson, 1. c. pp. 44, 45 n 
Dendrortyx macrourus dilutus, Nelson, Auk, xvii. p. 254". 
Tetrao marmorata, ua Llave, Reg. Trim. i. p. 144; La Nat. vil., App. p. 65. 
Grisescenti-olivascenti-brunneus, brunneo minute irroratus, fasciis irregularibus albidis vel ochracescentibus 
notatus ; tectricibus alarum et secundariis dorso concoloribus ; primariis brunneis haud vermiculatis ; 
supracaudalibus minute brunneo irroratis ; rectricibus brunneis, medianis paullulum ochracescente nigroque 
vermiculatim fasciatis ; pileo nigricante, plumis ochracescenti-brunneo terminatis ; nucha magis rufescente ; 
colli et interscapulii plumis medialiter castaneis, utrinque cinereo clare marginatis; capitis lateribus et 
gutture toto nigris, linea lata superciliari et altera infra-auriculari albis; preepectore et pectore toto cum 
colli lateribus cinereis, medialiter castaneis, quasi late striatis; pectore medio et abdomine summo sordide 
albicantibus ; hypochondriis imis, crisso et subcaudalibus grisescenti-brunneis, his saturatioribus, omnibus 
indistincte albido nigroque transfasciatim lineatis ; subalaribus. eodem modo coloratis ; remigibus intus 
prunneis: rostro, pedibus et iride corallinis, unguibus brunneis. Long. tota circa 15:0, ale 6-9, 
caude 7:0, culm. 0°8, tarsi 2°0. (Descr. avis adulti ex Valley of Mexico. Mus. nostr.) 
