368 Mr. P. L. Sclater on the 



certainly quite apparent in some Bogota specimens, and is 

 also well marked in examples from Western Pern. It does 

 not seem to me to be a constant character, and I cannot 

 recognize the si^ecies. 



25. Icterus grace-annjs. (Plate XI.) 

 Icterus grace-annce, Cass. Pr. Ac. Sc. Phil. 18G7, p. 52 ; 

 Tacz. P. Z. S. 1877, p. 323 (Tumbez) ; Salvin, Ibis, 1874, 

 p. 323; Scl. et Salv. P. Z. S. 1878, p. 137 (Pacasmayo). 

 Flavissimus, aurantiaco tinctus; interscapulio lato, alis et 

 Cauda, fronte, oculorum ambitu et gutture ad medium 

 pectus nigcrrimis ; tectricibus alarum minoribus flavis ; 

 secundariorum plaga oblonga et rectricum externarum 

 apicibus albis ; rostro et pedibus nigris : long, tota 7*5, 

 alse 3'5, caudse 3*7. Fern. Mari similis. 

 Hab. Littoral of Ecuador and N.W. Peru. Machala 

 (Orton), Tumbez {Jelski), Pacasmayo {Steere), Payta {Mark- 

 ham, Mus. S.-G.). 



Mus. P. L. S. et S.-G. 

 Obs. Sp. macula alari alba rotabilis. 



The figure (PL XI.) is taken from a female specimen in my 

 collection obtained at Tumbez by Jelski and Stolzmann. 



26. Icterus xanthornus. 



Oriolus xanthornus, Gm. S. N. i. p. 391. 

 Carou(je de Mexique, Daub. PI. Enl. 5. fig. 1. 

 Xanthornus linncei, Bp. Consp. p. 434. 

 Icterus xanthornus, Daud. Tr. d^Orn. ii. p. 334; Cab. in 

 Schomb. Guian. iii. p. 680, et Mus. Hein. p. 185 ; Burm. 

 Syst. Ueb. iii. p. 269; Scl. Cat. A. B. p. 133; Cassin, Pr. 

 Ac. Phil. 1867, p. 50; Scl. et Salv. P. Z. S. 1868, p. 167 

 (Venezuela), et Nomencl. p. 36 ; Taylor, Ibis, 1864, p. 84 

 (Trinidad) ; Salv. et Godm. Ibis, 1880, p. 123 (Santa Marta) ; 

 Finsch, P. Z. S. 1870, p. 578 (Trinidad); Pelz. Orn. Bras, 

 p. 195. 



Flavissimus, loris et gutture medio nigcrrimis ; alis cauddque 

 nigris ; tectricibus minoribus flavis • tectricum et remi- 

 gum marginibus externis anguste albis ; eauda ad basin 

 flava; rostro et pedibus nigris : long, tota 7'2, al?e 3'6, 

 caudpe 3'2. Fern. Mari similis. 



