304 PHASIANIDA. 
Hab. Mexico, Putla (Rébouch *). 
The Black-headed Colin is at present known only from the specimens obtained by 
Rébouch at Putla*. It isa western form of O. coyolcos, and has a blacker head and 
darker chestnut under surface; the black on the throat, too, extends over the front 
of the neck. 
9. Ortyx salvini. 
Colinus salvini, Nelson, Auk, xiv. p. 45°; xv. p. 1227; Grant, Ibis, 1902, p. 241°. 
O. atricipitc similis, sed multo saturatior et supra grisescentior nec rufo adumbratus; pileo undique cum 
gutture toto et pectore summo nigerrimis; pectore imo et abdomine sordide castaneis, plumis distincte 
nigro marginatis. Long. tota circa 7°8, ale 3°8, caudex 2:0, culm. 0:6, tarsi 1°15. 
2 O. atricipiti 2 similis, sed supra nigricantior, et fasciis gastreei nigris latioribus et magis distincte indicatis 
distinguendus. Long. tota circa 7°8, ale 4:0. (Descr. maris et femine ex San Benito, Chiapas. Mus. 
nostr. ) 
Hab. Mexico, Tapachula, Chiapas (Nelson & Goldman1), San Benito (.Melson & 
Goldman1, Richardson *). 
This is a distinct species, very dark in colour, and with an intensely black head, the 
black also covering the entire sides of the face and throat, and extending over the upper 
part of the breast, reaching lower down than in OQ. coyolcos and being quite as much 
developed asin O. pectoralis. The chestnut colour of the under surface is much duller 
than in the latter species, and the black edgings to the feathers give it a scaly appear- 
ance which is not seen in the allied forms. The strongly marked black bars on the 
breast of the female are also a feature of O. salvini. 
Messrs. Nelson.and Goldman discovered the present species in Chiapas, on the 
grassy coast-plains between Tapachula and San Benito, near the Guatemalan border ; 
it was found from the sea-level up to 500 feet?. Mr. Richardson afterwards procured 
us a series from the neighbourhood of San Benito, on the Pacific coast. 
The habits of this Colin resemble those of the other members of the genus. 
CYRTONYX. 
Cyrtonyx, Gould, Monogr. Odontoph. t. 7 (1844), Introd. p. 14 (1850); Grant, Cat. Birds Brit. 
Mus. xxii. p. 425 (1893). 
In the Harlequin-Quails the sexes differ in plumage, and the crest is rather full, but 
none of the feathers are very elongate. The first flight-feather is intermediate in 
length between the seventh and eighth; the tail is less than half the length of the 
wing and composed of twelve feathers. 
The three species recognized are all found within our limits. 
* There are two places of this name in Mexico: one in Oaxaca, which is probably the locality intended ; the 
other in the Distrito Federal, near Calimaya. 
