466 



BULLETIlSr 50, UNITED STATES NATIONAL MUSEUM. 



(15.24); depth of l)illat base, 7.11-7.62 (7.37): tarsus, 28.19-29.72 (2S.70); 

 middle toe, 17.27-20.83 (19.30).' 



Southern Mexico, in States of Vera Cruz (Jico, Motzorong-o, Cor- 

 dova, Jalapa), Mexico (Valle^^ of Mexico), Oaxaca (Cerro San Felipe, 

 La Parada, Teotalcingo), Guerrero (mountains near Chilpancingo), 

 and Chiapas (San Cristobal, Tumbala, Pinabate), through highlands of 

 Central America to mountains of Peru and \^enezuela. 



Embrrnagra bninneinuclia Lafresnaye, Rev. Zool., 1839, 97 (Mexico; coll. Bost. 

 See. Nat. Hist). 



E.[mbernagra] brunneinucJia (jRAY, Gen. Birds, ii, 1844, 361. 



Tavagnt (Embernagra) brunnei-nucha Boissoneai', Rev. Zool., 1840, 68. 



[Bunrn-mon] brunneimicJia Bonaparte, Consp. Av., i, 1850, 484. — Sclater and 

 Salvin, Nom. Av. Neotr., 1873, 24. 



J?, [uarremo??] brunnemuchus Cabaxis, Mus. Hein., i, May, 1851, 141 (Colombia). 



Buarremon brunnemuchus Sclater, Proc. Zool. Soc. Lond., 1855, 155 (Bogota, 

 Colombia); 1856, 85 (monogr.), 302 (Cordova, Vera Cruz); 1858, 72 (Rio 

 Napo, e. Ecuador), 303 (La Parada, Oaxaca); 1859, 364 (Jalapa, Vera Cruz), 

 377 (Teotalcingo, Oaxaca) ; 1864, 174 (Valley of Mexico) ; Synop. Av. Tanagr., 

 1856, 23 (monogr.) ; Cat. Am. Birds, 1862, 90 (Bogota, Colombia; Guate- 

 mala; Jalapa, Vera Cruz). — Sclater and Salvix, Ibis, 1859, 15 (Guatemala); 

 Proc. Zool. Soc. Lond., 1868, 627 (Caracas, Venezuela); 1875, 234 (Merida, 

 Venezuela); 1879, 504 (Concordia, Medellin, and Santa Elena, prov. Anti- 



^ Five specimens (three from southern Mexico, one each from Guatemala and 

 Costa Rica). 



Averages of specimens from different countries are as follows: 



Locality. 



MALES. 



Nine adult males from southern ]Mexie() 



Pour adult males from Costa Rica 



FEMALES. 



Three adult females from southern Mexico 



One adtilt female from Guatemala 



■One adult female from Costa Rica 



SEX rNDETERMlNED. 



Eight adults (from Colombia, -6; Venezuela, 1, and 

 Peru. 1 ) 



Depth 



of bill i Tarsus. 



at base, 



7.87 

 7.37 



7.62 

 7.62 j 

 7.11 I 



29.72 

 29. 21 



28. 45 

 28.19 

 29.72 



Middle 

 toe. 



20. 32 

 19. 56 



19. 30 

 18. 54 

 19.81 



With a series of thirty-eight adults, representing numerous localities from southern 

 Mexico to Venezuela and Peru, I am miable to detect any color-differences that can 

 be correlated with sepai'ate geographic areas. The individual variation in meas- 

 urements is very great, and possibly marked geographic differences in this resjiect 

 exist, but unfortunately the number of sexed si)ecimens is much too small to deter- 

 mine the question. The largest specimens in the series examined are from the State 

 of Chiapas, southern Mexico, a district where many species exhibit a tendency to 

 acquire unusual size; but among the Chiapas specimens are some of the usual dimen- 

 sions. Tlie smallest siieciineus are from Co.sta Rica. 



