BIKI>S <»1' N'oli'l'H A XI) MIDDLK .\MEK1(A. 



185 



portion of malar ic^ioii: imclcr [nivts very pale butiy ycllowi.sh or dull 

 yollowLsh white, shading laterally into palo oreenisli olive; under wino- 

 coverts pale straw yellow; maxilla horn brown; mandible with terminal 

 third (more or less) horn brown, much paler basally : lej^.s and feet du^kv 

 (bluish <^'ray or grayish blue in life^). 



Adult male. — Length (skins), 146-149 (147.5); wing, 70-78 (77); 

 tail, 50-58 (57); exposed culmen. 10-17 (ir).5); depth of ])ill at nostrils. 

 5.5; tarsus, 22; middle toe, 12." 



Adult female {f). — Length (skin), 148; wing. ~{?>\ tail. 58; exposed 

 culmen. 10; d(>])th of bill at nostrils, 5; tarsus. 2;>; middle toe, 12.'' 



British Honduras (Belize); coast of Honduras (Ruatan Island; 

 Bonacca Island).'' 



Vireo.'<ylvia magister "Baird, N. S." Lawrence, Ann. Lye. Nat. Hist. N. Y., x, 

 1871, 20 (Belize, Brit. Honduras; coll. U. S. Nat. Mus.; ex Baird, MS.). 



V\ireosylvia\ niaylster Baird, Brewer, and Rid(;way, Hist. N. Am. Birds, i, 1874, 

 359. 



Vireo magviter Salvin and (todmax, Biol. Centr.-Am., Aves, i, sig. 24, Dec, 1881, 

 191 (Belize).— Gadow, Cat. Birds Brit. Mus., viii, 1883, 295.— Ridgwav, 

 Proc. U. S. Nat. Mus., x, 1888, 578 (Ruatan I., Honduras; crit.). — Salvin, 

 Ibis, 1888, 254, part (Ruatan I.; Bonacca I.). 



]\ireo'] niagider Riduway, Man. N. Am. Birds, 1887, 470. 



"Two specimens, one from Belize (the type), one from Ruatan Island. 



''One si)ecimen (sex not determined by collector) from Ruatan IsJand. 



''Two specimens from Ruatan differ somewhat from two Belize e.xaniples (one of 

 them the type of the species) , but peiliaps not sufficiently to characterize them as 

 sul)specifically distinct. At any rate it would require a large series from botli locali- 

 ties to show whether the differences indicated arc constant or not. The difference 

 consists chiefly in a more decided olive or olive-greenish cast to the plumage, but 

 the two Ruatan specimens <liffer ijuite appreciably from one another in this respect, 

 one of them having the upper surface nearly uniform dull olive-greenish, instead of 

 having only the rump, upper tail-coverts, and edges of wing-feathers distinctly of 

 this color. This specimen is also much more strongly tinged with yellowish on the 

 under parts, the under tail- and wing-coverts and the axillars l)eing a pale creamy 

 yellow, the whole abdomen a paler tint of the same. The measurements compare 

 as follows: 



