BIEDS OF NORTH AND MIDDLE AMERICA. 305 



"Length, 184:.2; wing-, 95.3; tail, 76.2; tarsus, 21.0; ])ill, 21. C." 

 (Original description, the measurements converted to millimeters.) 



Island of Grand Cajnuan (south of Cuija), Greater Antilles. 



I have not seen a specimen of this form, which, like I. lavyrencii 

 of St. Andrews Island, is evidently an offshoot of /. leacopteryx. 



Icterus bairdi Cory, Auk, iii, Oct., 1886, 500 (Grand Cayman, Greater Antilles; 

 coll. C. B. Cory); v, 1888, 158; Birds W. I., 1889, 291; Cat. W. I. Birds, 

 1892, 15, 110, 129, 146. 



ICTERUS LA\A^RENCII Cory. 

 ST. ANDREW'S ORIOLE. 



Similar to /. leucopteryx^ but slightly smaller, bill longer and more 

 slender, and coloration much lighter; pileum, hindneck, back, scapu- 

 lars, rump, and upper tail-coverts slightly olivaceous gamboge yellow 

 or wax yellow (more decidedly tinged with olive on back and scapu- 

 lars); under parts and sides of head clear lemon yellow, scarcely if at 

 all tinged with olive. Young similar to that of I. leiwopteryx but 

 paler, with white band across terminal portion of greater wing- 

 coverts, broader, and the band on middle coverts pale yellow instead 

 of white. 



Adult. — Length (skin), 1S5.1; wing, 101.3; tail, 83.1; culmen, from 

 base, 25.4; depth of bill at base, 10.2; tarsus, 24.6; middle toe, 17.^ 



St. Andrews Island, Caribbean Sea. 



Idcrus laarcncii Coky, Descr. six new sp. Ijirds from Gld Providence and St. 



Andrews, May 27, 1887, 2; Auk, iv, July, 1887, 178, 181 (St. Andrews 



Island, Caribbean Sea; coll. C. B. Cory). 

 Icterus lawrencei Stone, Proc. Ac. Nat. Sci. Pliila., 1899, 301, in text. 



ICTERUS MESOMELAS MESOMELAS (Wagler). 

 YELLOW-TAILED ORIOLE. 



Adults {sexes alike). — Lores, eyelids, anterior half of cheeks (back 

 to or beyond middle of eye), chin, throat, and upper chest (except 

 laterally), back, scapulars, wings (except lesser and middle coverts and 

 outer webs of innermost greater coverts), and six middle rectrices, 

 black; outer Avebs of longer innermost secondaries edged with white, 

 producing a more or less conspicuous narrow stripe in the closed wing; 

 outer webs of longer primaries narrowly edged with white toward 

 tips; rest of plumage (including lesser and middle wing-coverts, outer 

 webs of innermost greater coverts, and greater part of three outer- 

 most rectrices,) ^ rich lemon yellow, deeper (more saffron or cadmium 



^ One specimen, sex not determined. 



^ Base of outermost rectrix black on both webs; second with about basal third of 

 inner web (less of outer web) black, and third with at least basal half of inner web 

 black; sometimes the fourth rectrix is jiartly yellow (toward end), but frequently 

 it is wholly black. 



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