ORTALIS. 209 



tail-coverts; length 19.75-24.00, wing 7.50-8.50, tail 

 9.00-10.50. Nest in trees or bushes, usually 4-10 feet 

 from ground, carelessly constructed of sticks, grasses, 

 leaves, etc. Eggs usually 3, 2.34 X 1-60, creamy white, 

 with very hard, distinctly granulated shells. Sab. 

 Northeastern Mexico, from Vera Cruz north to lower 

 Eio Grande Valley (both sides). 



311. O. vetula maccalli (Baird). Chachalaca. 1 



e 2 . Tip of tail dull buffy brown, or isabella-color ; colors generally 



darker than in maccalli, and size decidedly less (length 



about 21.00, wing 7.70, tail 9.00). Sab. Guatemala and 



southern Mexico (Isthmus of Tehuantepec). 



O. vetula plumbeiceps Gbat. Guatemalan Chachalaca. 2 

 d 1 . Belly dull whitish. 



Tip of tail brownish white; otherwise like maccalli, but 

 smaller (size of plumbeiceps). Sab. Yucatan. 



O. vetula pallidiventris Kidgw. (subsp. nov.). 

 Yucatan Chachalaca. 

 <?. Wing 9.00, or more ; feathers of neck distinctly lanceolate ; under tail- 

 coverts deep ochraceous, tip of tail pale ochraceous. 



O. poliocephala Wagl. Gray-necked Chachalaca. 8 

 6 s . Quills chestnut. 



Otherwise very similar to O. plumbeiceps, but much browner above. 



O. cinereiceps Gbat. Costa Rican Chachalaca. 4 



J It is possible that this may be the true 0. vetula of Wagler (Penelope vetula Wagl., Ms, 1830, 1112), 

 which seems to agree exactly in color with O. maccalli ; but the size is much smaller, the length being given 

 as 18 inches, the tail 9.70. The locality is given as simply " Mexico," and it may be that a fourth local race, to 

 which Wagler's name is strictly applicable, may exist in some portion of Mexico specimens from which have 

 not come under my observation. 



2 Ortalida plumbeiceps GitAY, List Gallin. Brit. Mus. 1867, 11. 



3 Penelope poliocephala Wagl., Isis, 1830, 1112, Ortalida poliocephala Wagl., Isis, 1832, 1227. 

 * Ortalida cinereiceps Gray, List Gallin. Brit. Mus. 1867, 12. 



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