BIRDS OF NORTH AND MIDDLE AMERICA. 



531 



throat, and chest, black; supraloral spot (continued backward over 

 eyes), chin, and upper throat, bright yellow; under parts (except chest, 

 etc.) olive-grayish, tinged with olive-greenish on breast and sides, the 

 abdomen much paler, approaching dull white; bill black; feet brown- 

 ish; length (skins), 85.85-114.30 (98.81); wing, 18.26-52.58 (50.55); 

 tail, 34.54-4:2.42 (38.35); exposed culmen, 8.38-10.16 (9.14); depth of 

 bill at base, 6.10-7.11 (6.60); tarsus, 14.73-16.51 (15.75); middle toe, 

 10.92-13.21 (11.94).^ 



AcImU female. — Similar to the adult male, but usually without any 

 black on head or chest, or else with the black markings less distinct, 

 the yellow markings also less distinct; length (skins), 86.11-99.06 

 (95.00); wing, 47.50-50.80 (48.77); tail, 34.29-39.12 (36.58); exposed 

 culmen, 8.38-9.65(8.89); depth of bill at base, 5.84-7.11 (6.35); tarsus, 

 14.22-16.00 (15.49) middle toe, 10.67-12.70 (11.94).^ 



Cuba; Grand Caj'^man; Little Cayman; Jamaica; Haiti. 



[Ernberiza] olivacea LiNN.a!us, Syst. Nat., ed. 12, i, 1766, 309 (Santo Domingo; 



based on Emberiza dom'micenm Brisson, Av. 3, p. 380, no. 14, pi. 13, fig. 5). — 



Gmelin, Syst. Nat., i, 1788, 870. 

 P[asserina] olivacea YiEihi^oT, Enc. MiSth., iii, 1823, 935. 

 Passerina olivacea D'Oebigny, in La Sagra's Hist. Nat. Ckiba, Ois., 1839, 84, 



atlas, pi. 15. — GuNDLACH, Journ. Bost. Soc. N. H., vi, 1853, 317. 

 S. Ipermophila'] olivacea Gray, Gen. Birds, ii, 1844, 386. 

 SpermophUa olivacea GossB, Birds Jamaica, 1847, 249. — AlbEecht, Journ. fiir Orn., 



1862, 196 (Jamaica) . 



' Thirty four specimens. 



^ Twenty specimens. 



Average measurements of specimens from the different islands are as follows: 



I am not quite satisfied as to the propriety of referring to this form specimens from 

 Cuba and the Caymans, which seem to differ in average duller coloration and decidedly 

 longer wing and tail in males, there being apparently much more sexual difference in 

 size than among specimens from Haiti and Jamaica. Much larger series of specimens 

 will be necessary to settle this question, however. 



