26 Nelson, New Birds from Mexico. [j a u n k 



Colinus virginianus maculatus, subsp. nov. 

 Spotted-bellied Bob-White. 



Type,No. 158471, $ ad., U. S. National Mus., Biol. Survey Coll. Alta 

 Mira, Tamaulipas, Mexico. Collected May 16, 189S, by E. W. Nelson and 

 E. A. Goldman. 



Distribution. — From Tancanhuitz, San Luis Potosi, north to Victoria 

 and Jaumave Valley, Tamaulipas, Mexico. 



Subspecijic characters. — Similar to C. v. texanus from which it differs 

 in darker and grayer colors of dorsal surface and chestnut and spotted 

 lower surface. 



Color of Male. — Chin, throat and broad stripe from lores back over 

 eye to nape white. Crown and nape black, with gray and brown edges 

 to feathers on back of crown and nape. A well denned band of black 

 extends from bill back below eyes and across neck, bordering white 

 throat area. Feathers on back and sides of neck black, edged near tips 

 with white and dull rufous. Feathers of shoulders dull rufous heavily 

 marked with irregular black and gray cross bars and edgings. Rest of 

 back and tertials blackish with gray and brown mottling and indistinct 

 barring. Wing-coverts dull rufous with black bars and gray edges. 

 Lower neck and fore part of breast usually plain dull rufous, rest of 

 lower parts, including lower tail-coverts, of the same color heavily marked 

 on borders of feathers, with black and white spots on sides of feathers 

 near tips. 



Dimensions of type. — Wing, 106; tail, 60 ; culmen, 13; tarsus, 31. 



Remarks. — Compared with C. texanus the. female is decidedly- 

 darker and grayer above with a better defined pectoral band 

 of black, dull rufous and white markings just below buffy 

 throat patch. The series at hand shows conclusively that C. v. 

 ■texanus grades through the present bird directly into O. graysoni, 

 thus reducing the latter to a subspecies of O. virginianus. 



Callipepla gambeli fulvipectus, subsp. nov. 

 Buff-breasted Partridge. 



Type, No. 164093, cT a d., U. S. Nat. Mus., Biol. Survey Coll. Camoa, 

 Rio Mayo, Sonora, Mexico. Collected Nov. 7, 189S, by E. A. Goldman. 



Distribution. — Southwestern Sonora, Mexico. 



Subspecijic characters. — Differs mainly from typical C. gambeli 'in its 

 generally darker or more intense colors and larger bill. 



Color. — Crown patch rich burnt umber; neck olive washed; breast 



