Todd — Studies in the Tyrannidce. 205 



crit.)- — ScLATER and Salvin, Proc. Zool. Soc. London, 1879, 515 (Retiro, 

 Concordia, and Santa Elena, Antioquia, Colombia; descr. eggs). — Salvin 

 and GoDMAN, Ibis, 1880, 125 (Santa Marta, Colombia). — Gates and 

 Reid, Cat. Birds' Eggs Brit. Mus., Ill, 1903, 210, pi. 5, fig. 10 (Santa 

 Elena, Antioquia, Colombia; descr. eggs). 



Myiarchus ferox (not Muscicapa ferox Gmelin) Sclater, Proc. Zool. Soc. 

 London, 1855, 150 ("Bogota," Colombia). — Cassin, Proc. Acad. Nat. 

 Sci. Philadelphia, 1860, 143 (Rio Truando, Colombia). — Sclater, Cat. 

 Birds Brit. Mus., XIV, 1888, 253, part (Santa Marta, Santa Elena, and 

 "Bogotd, " Colombia). — Bangs, Proc. Biol. Soc. Washington, XII, 

 1898, 137 ("Santa Marta," Colombia).— Allen, Bull. Am. Mus. Nat. 

 Hist., XIII, 1900, 142 (Bonda, Colombia). 



Myiarchus ferox panamensis Nelson, Proc. Biol. Soc. Washington, XVII, 

 1904, 29 (range).— RiDGWAY, Bull. U. S. Nat. Mus., No. 50, IV, 1907, 

 640 (Colombian localities and references; descr.; meas.). — Gberholser, 

 Proc. Indiana Acad. Sci., 1918, 306 (range; crit.). — Todd and Carriker, 

 Ann. Carnegie Mus., XIV, 1922, 346 (Santa Marta region, Colombia; 

 crit.). 



Myiarchus panamensis Brabourne and Chubb, Birds S. Am., I, 1912, 302 

 (ref. orig. descr.; range). 



Myiarchus (ferox?) panamensis Chapman, Bull. Am. Mus. Nat. Hist., 

 XXXVI, 1917, 475 (Tumaco, Bagado, Malena, Puerto Berrio, Chicoral, 

 and Turbaco, Colombia; local range; crit.). 



Subspedfic characters. — Similar to Myiarchus ferox venezuelensis, but 

 still lighter and paler above, the back Saccardo's olive, the pileum more or 

 less shaded with mouse gray, and the margins of the wings and tail generally- 

 paler. 



Measurements. — Male: wing, 87-94 (average, 91.5); tail, 82-91 (87); 

 bill, 17.5-20 (19); tarsus, 22.5-25 (23.5). Female: wing, 83-95(?) (89); 

 tail, 81-87 (86); bill, 17-20.5 (18.5); tarsus, 21-23.5 (22.5). 



Range. — From Panama to northern and western Colombia, in the 

 Tropical Zone. 



i^emarfcs.— Compared with typical ferox from Guiana panamensis is a 

 very distinct race, easily told by its decidedly paler coloration throughout, 

 but Venezuelan specimens are obviously intermediate. It was described 

 by Lawrence in 1860 as a distinct species from Panama skins, but all the 

 more recent authors (except von Berlepsch) agree in considering it a race 

 oi ferox, with a range extending from Panama into Colombia, where it covers 

 the lowlands of the northern and western parts and the valleys of the Mag- 

 dalena and Cauca Rivers. Colombian specimens are precisely hke a series 

 from Panama. 



Specimens examined. — Colombia: Bonda, 4; Cautilito, 1; Don Diego, 1; 

 La Tigrera, 2; Fundacion, 5; Punto Caiman, 2; Tucurinca, 2; Calamar, 1; 

 Turbaco, 4; Lorica, 1; Gamarra, 2; Aguachica, 1; El Tambor, 1; Sautata, 

 1 ; Rio Truando, 1 ; "Santa Marta, "4; Puerto Berrio, 2; Bagado, 1; Malena, 

 1; La Herrera, 1; Tumaco, 2. Total, 40. 



