26. QUISCALTJS. 397 



Similar to Q. juaerurus, but smaller: whole length 14-5 inches, 

 wing 6-9, middle rectrices 7-2, external 4-6. 

 Hah. Veragua, Panama, and Colombia. 



a. S ad. sk. Calobre, Verajjua {Arce). Salvin-Godman Coll. 



b. S ad. sk. Calovevora, Veragua {Arce). Salvin-Godmau Coll. 



c. c? ad. sk. Veragua {Arce). Sclater Coll. 



a. S ad. sk. Lion Hill, Isthm. of Panama Sahin-Godman Coll. 



{McLeannan). 

 e,/. c? 2 ad. sk. Bogota. Sclater Coll. (Types 



of the species.) 

 5. Guiscalns graysoni. 

 Quiscalus palustris, Cassin, Pr. Ac. Sc. Phil. 1866, p. 411. 

 Quiscalus major, var. palustris, Baird, Breiv.. et Ridcjw. N. A. B. 

 ii. p. :^14; LaiL-r. Mem. Boston Sac. X. II. ii p -'82 (N w' 

 Mexico). V • • 



Quiscalus graysoni, Sd. Ibis, 1884, p. 1.57. 



Similar to Q. macrurus, but still smaller than Q. assimilis : whole 

 length 14-0 inches, wing 6-6; tail, middle rectrices 6-5, external 4-5. 



Hab. Western ]SIexico. 



This^ is a small Western Mexican form of Q. macrurus ; the 

 adult is, I believe, quite indistinguishable from Q. macrurus in 

 plumage, the specimens with brown thighs mentioned by Cassin 

 and Lawrence being doubtless immature. It is very doubtful 

 whether this bird has any real claim to Swainson's title ixdustris : 

 his specimens from the lakes near Mexico city were probably of the 

 species which he afterwards described as Q. tetmirostrts. 



a, b d' ai sk. ; c. Mazatlaii, A^'. Mexico {Furrer). Salvin-Godman Coll 



? ^•^^'- (Types of the species.) 



6. Quiscalus tenuirostris. 



Scaphidurus palustris, Stv. Phil. Mag. n. s. i. p. 437 (1827) » 



Quiscalus tenuirostris, Siv. An. in Men. p. 1^99 (1838): Cassin, Pr 



Ac. Sc. Phil. 1866, p. 411 ; Baird, Brew., et Ridt/w. iV. A B ii' 



p. 214 J Scl. Ibis, 1884, p. 157, pi. v. ; Scl. et Salv. Nomencl. p. 38.' 



Uniform dark purplish black, with slight metallic reflections; 

 wings and tail dark shining black ; thighs brownish ; bill and feet 

 black: whole length 13 inches, wing 6-7; tail, middle rectrices 7, 

 external 4-3. Female. Above brown, passing into blackish on the 

 rump, wings, and taU ; superciliaries and bodv below pale brown ; 

 flanks and crissum blackish ; bill and feet blackish : whole leno-th 

 10-5 inches, wing 5-2, middle rectrices 4-4, external 3-3. ° 



Hah. Central Mexico. 



This species is easily recognizable by its slender and more in- 

 curved bill. 



■«. d ad sk Mexico. Sclater Coll. 



6, c. c? ? ad. sk. Mexico {Boucard). Sclater Coll 



d. S ad. sk. Mexico. Salvin-Godmau Coll. 



e. V ad. sk. ^ icmity of Mexico city Salvin-Godman CoU. 



{Boueard). 



