300 PHASIANIDA. 
Colinus graysoni nigripectus, Nelson, Auk, xiv. p. 47%; xv. pp. 116,121"; xix. p. 389, t. 14. 
fig. 2°”. 
Colinus minor, Nelson, Auk, xviii. p. 47°; xix. p. 389, t. 14. fig. 3”. 
Supra brunneus, sicut in ceteris speciebus affinitis, albido nigroque fasciatim variegatus; pileo et regione 
parotica nigricantibus ; loris, supercilio lato, facie laterali gulaque albis; torque lato prepectorali et colli 
lateribus nigris ; corpore reliquo subtus castanco, plumis nonnullis nigro marginatis. Long. tota circa 7-0, 
ale 4:15, caude 2-0, culm. 0-6, tarsi 0-9. (Descr. maris adulti ex Jalapa. Mus. nostr.) 
Q a mari diversa, pileo brunneo ; fascia superciliari gulaque ochraceis ; preepectore minime castaneo, ochraces- 
cente tamen nigro maculato. (Descr. femine ex Mexico. Mus. Brit.) 
Hab. Mexico!27, Eastern coast, Llanos de Paso de Ovejas, La Estanzuela (Swmi- 
chrast*), Atlixco, Puebla 116, Orizaba 13, and Carrizal!4, Vera Cruz, Palenque, 
Chiapas 1819 (Nelson), Jalapa (Sallé4, De Oca®™), Cordova (Sailé*), Chietla, 
Vera Cruz (Lerrari-Perez !*), Guanajuato (Dugés"). 
The Chestnut-breasted Colin belongs to the section of the genus Orfyx in which all 
the species have a uniform rufous breast and abdomen, but a white throat. Mr. Nelson 
has described a Colinus graysoni nigripectus from the tableland of Southern Puebla 
(3000 to 6000 feet) 1°, and another species, C. minor, from Chiapas 18. Mr. Ogilvie 
Grant® has expressed an opinion that both these forms are inseparable from 
O. pectoralis. It seems extremely probable, from a comparison of specimens, that 
O. nigripectus is referable to O. pectoralis; but of O. minor from Chiapas we have no 
series before us, and the identity of this form with the above-mentioned bird may 
prove to be incorrect. In any case it can only be regarded as a small race of 
O. pectoralis; and Mr. Nelson’s description in the ‘Auk’ for 190219 does not agree 
with his original diagnosis }5. 
Near the city of Orizaba O. pectoralis has been found living in brush-grown and 
weedy old fields—sometimes straying about the coffee-plantations }°. 
8. Ortyx graysoni. 
Ortyx graysoni, Lawr. Ann. Lyc. N. Y. villi. p. 476"; Mem. Bost. Soc. N. H. ii. p. 83067; Grant, 
Cat. Birds Brit. Mus. xxii. p. 422°; Handb. Game-Birds, i. p. 142, t. 32 *. 
Colinus graysoni, Stejn. Auk, ii. p. 45°; Jouy, Pr. U.S. Nat. Mus. xvi. p. 790°; Nelson, Auk, xv. 
p. 121". 
O. pectoralt similis, sed major: subtus pallidior, torque nigro gutturali angustiore. Long. tota circa 8:5, alw 4-7, 
caudee 2°4, culm. 0°65, tarsi 1°15. (Descr. maris adulti ex Santana. Mus. nostr.) 
Q O. pectorali 2 similis, sed major. Long. tota circa 8°5, ale 4:9. (Descr. feminz ex Hacienda El Rosario. 
Mus. nostr.) 
Hab. Mexico, Santana, near Guadalajara (Lloyd*), Guadalajara (Grayson1?, Jouy ®), 
Hacienda El Rosario, Guadalajara (Buller), Lake Chapala (Richardson?), El 
Molino (Jowy®), Hacienda Angostura, Jalisco (Jouy®, Nelson”), San Luis Potosi 
(Nelson *). 
Grayson’s Colin is a larger bird than O. pectoralis, and slightly paler below, and is 
