304 PHASIANID^. 



Eab. Mexico, Putla (Eebouch^). 



The Black-headed Colin is at present known only from the specimens obtained by 

 Rebouch at Putla *. It is a western form of 0. 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. 122 ' ; Grantj Ibis, 1902, p. 241 '. 



0. atrieipiti similis, sed multo satnratior et supra grisescentior nee rufo adumbratns ; pileo undique cum 

 gattare toto et pectore summo nigemmis ; pectore imo et abdomine sordide castaneis, plumis distincte 

 nigro marginatis. Long, tota circa 7'8, alae 3-8, caudae 2-0, culm. 0-6, tarsi 1-15. 



$ 0. atrieipiti $ similis, sed supra nigricantior, et fasciis gastrsei nigris latioribus et magis distincte indicatis 

 distinguendus. Long, tota circa 7'8, alse 4-0. (Descr. maris et feminse ex San Benito, Chiapas. Mus. 

 nostr.) 



IJab. Mexico, Tapachula, Chiapas {Nelson & Goldman ^), San Benito {Nelson & 

 Goldman ^, 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 0. coyolcos and being quite as much 

 developed as in 0. 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 0. 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 locaHty intended; the 

 other in the Sistrito Federal, near Calimaya. 



