AKT. 7 REVISION OF THE GENUS BASILEUTEEUS — TODD 81 



qui, ranama ; descr. ; refs.)- — Bangs, Proc. New England Zool. Club, vol. 

 3, 1902, p. 60 (Boquete and Volcan de Chiriqui, Panama). — Ridgway, 

 Bull. U. S. Nat. Mus., No. 50, vol. 2, 1902, p. 751, psirt (Panama localities 

 and refs.). 

 Bas-ll€uteriu<i melanogenys eximius Neilson, Smithsonian Misc. Coll., vol. 60, 

 No. 3, 1912. 22 (Boquete [5,000 feet], Panama; orig. descr.; type in coll. 

 Mus. Comp. Zool.). — Goldman. Smithsonian Misc. Coll., vol. 69, No. 5, 

 1920, p. 42 (faunal range).— Griscom, Amer. Mus. Nov. No. 280, 1927, p. 

 13, in text (crit). 



Suhspeclfic chofracters. — Similar to Basileuterus melanogenys mel- 

 anogenys^ but upper parts averaging duller, less decidedly olivaceous, 

 and under parts less bufFy, more whitish. 



Measwements. — Male (seven specimens) : Wing, 59-65 (average, 

 G3) ; tail, 57-64 (60) ; bill, 9.5-10.5 (10) ; tarsus, 22-23 (22.5). Fe- 

 male (six specimens) : Wing, 58-64 (61) r tail, 55-61 (58) ; bill, 10- 

 10.5 (10) ; tarsus, 22-23 (22.7). 



Range. — Highlands of western Panama. 



Remarks — Bamleuterus melanogenys eximius is not a strongly 

 marked race, but is discernible in comparison of series. The de- 

 scriber had only the type and one other specimen, both of which are 

 more grayish aboA^e than Costa Rican skins, but a larger series fail 

 to emphasize this feature, and manj^ examples are scarcely or not 

 distinguishable in this respect. Specimens were taken in Chiriqui by 

 Arce not long after von Frantzius secured his in Costa Rica, but the 

 Chiriqui bird was not recognized as racially distinct until Doctor 

 Nelson examined some of those collected by Mr. W. W. Brown in 

 1901. 



Specimens examined. — Panama: Volcan de Chiriqui, 7; Boquete, 

 8 (including type). Total, 15. 



BASILEUTERUS MELANOGENYS MELANOGENYS Baird 



Basileuterus melwrioffen/ys Bajrd, Rev. Amer. Birds, 1865, p. 247 (diag.), 

 p. 248 [San Jose?], Costa Rica; orig. descr.; type in coll. U. S. Nat. 

 Mus.).— Lawrence, Ann. Lye. Nat. Hist. N. Y., vol. 9, 1868, p. 95 (San 

 Jos^, Costa Rica). — Salvin and Godman, Biol. Centr.-Amer., Aves, vol. 1, 

 1881, p. 174. part, pi. 10, fig. 3 (San Jos4 and Volcano Irazfl, Costa Rica; 

 descr.; Costa Rican references). — Shabpb, Cat. Birds Brit. Mus., vol. 10, 

 1885, p. 398, part (Irazta district, Costa Rica). — Zeledon, An. Mus. Nac. 

 Costa Rica, vol. 1, 1887, p. 107 (La Palma de San Jos$, Costa Rica). — 

 Cherbie, Proc. U. S. Nat. Mus., vol. 14, 1891, p. 528 (descr. young). — 

 Ridgway, Bull. U. S. Nat. Mus., No. 50, vol. 2, 1902. p. 751, part (descr ; 

 Costa Rican localities and refs.). — Ferry. Field Mus. Orn. Ser., vol. 1, 

 1910, p. 277 (Coliblanco and Volcano Turrialba, Costa Rica). — Carrikeb, 

 Ann. Carnegie Mus., vol. 6, 1910, p. 796 (Costa Rican localities and refs. ; 

 crit. ; habits). 



Description. — Pileum chestnut, inclosed by two lateral narrow lines 

 of black, meeting on the forehead, and widening on the nape; con- 

 21B10— 29 6 



