BIRDS OF NORTH AND MIDDLE AMERICA. 241 



Quiscalus major, var. macrnrus Baird, Brewer, and Ridgway, Hist. N. Am. 

 Birds, ii, 1874, 225. 



Quiscalus major macrurus Goode, Bull. U. S. Nat. Mus., no. 20, 1883, 339. 



Quiscalus assimilis (not of Sclater, 1862?) Sclater, Ibis, 1884, 156, part (Veragua; 

 Panama); Cat. Birds Brit. Mus., xi, 1886, 396, part (Calobre and Calove- 

 vora, Veragua; Lion Hill, Panama R. R. ). — (?) Salvadori, Boll. Mus. Zool., 

 etc., Torino, xiv, 1899, no. 339, 5 (Punta de Sabana, Isthmus of Panama). 



IQuiscalusI assimilis Sclater and Salvin, Nom. Av. Neotr., 1873, 38, part (Vera- 

 gua; Panama). 



MEGAQUISCALUS MAJOR OBSCURUS (Nelson). 

 COLIMA BOAT-TAIL. 



Similar to Jf. m. inacrourus^ but much smaller (except feet), with 

 relatively shorter and much thicker bill; adult male identical in color- 

 ation with that of M. m. macrourun; adult female decidedly darker 

 than that of 2f. m. Tnacrourvs^ the chin and throat broccoli brown or 

 deep wood brown (instead of buffy), passing into deep broccoli brown, 

 or almost bister on chest. 



Adult male.— hQw^th. (skins), 381-388.6 (385.3); wing, 178.3-180.8 

 (179.8); tail, 181.2-190.5 (188.5); culmen, from base, 41.1-11.9 (41.7); 

 depth of bill at base, 14.5-15 (^14. 7); tarsus, 47.8-48.3 (48); middle 

 toe, 34.3-35.1 (34.5).^ 



Adult female.— LiQwgth (skins), 298.5-330.2 (314.5); wing, 139.7- 

 149.1 (144); tail, 124.5-151.9 (138.2); culmen, from base, 33.5-35.6 

 (34.5); depth of bill at base, 11.4-12.4 (11.9); tarsus, 38.9-41.1 (40.4); 

 middle toe, 27.9-31.2 (29.2).' 



Coast district of southwestern Mexico, from State of Guerrero (Aca- 

 pulco) through Colima (Manzanillo; Manzanillo Bay) to Territory of 

 Tepic (Ixtapa, Tepic, Santiago, San Bias, etc.). 



Quiscalus major (not of Vieillot) Cassin, Proc. Ac. Nat. Sci. Phila., 1866, 409, part 

 (Colima, s.w. Mexico). — Lawrence, Mem. Bost. Soc. N. H., ii, 1874, 281 

 (Manzanillo Bay and plains of Colima). 



Quiscalus macrourus obseurus l^^Ehsoi^, Auk, xvii, July, 1900, 267 (Acapulco, Guer- 

 rero, s. w. Mexico; coll. U. S. Nat. Mus.). 



Scaphidurus major obscurus Ridgway, Proc. AVash. Ac. Sci., iii, Apr. 15, 1901, 152. 



MEGAQUISCALUS MAJOR GRAYSONI (Sclater). 

 GRAYSON'S BOAT-TAILED GRACKLE. 



Similar to If. m. obscurtcs, but decidedly smaller and with relatively 

 shorter tail (usually decidedly shorter and never much longer than 

 wing, instead of the reverse); adult male similar in coloration to Jf. m. 

 ohscurufi a,nd 31. in. macrourus., but less extensively violet anteriorly, the 

 breast, sides, and back being chiefly steel blue; adult female much paler 

 than in the before-mentioned forms; scarcely distinguishable as to col- 



^ Three specimens. ^ Four specimens. 



3654— VOL 2—01 16 



