Todd — Studies in the Tyrannidce. 197 



fully establish the status of the present form, which seems to have gone 

 unrecognized until recently, having passed for ferox for the most part, as 

 shown by an inspection of the labels attached to the specimens. The 

 soiled greenish yellow color of the posterior under parts, in connection with 

 the proportions of the bill, wings, and tail, is a uniform characteristic of 

 the form in question. 



Specimens examined. — Venezuela: El Trompillo, Carabobo, 5; Ciudad 

 Bolivar, 1; Agua Salada de Ciudad Bolivar, 1. British Guiana: Annai, 1. 

 Brazil : Benevides, 1 ; Santarem, 1 ; Piassaguera, Sao Paulo, 1 ; Santa Maria 

 River, Rio Grande do Sul, 2; Rio Negro, Parana, 1. Total, 14. 



Myiarchus phaeonotus Salvin and Godman. 



Myiarchus phceonotus Salvin and Godman, Ibis, 1883, 207 (Merume 

 Mountains, British Guiana; orig. descr.; type now in coll. Brit. Mus.). — 

 Salvin, Ibis, 1885, 298 (Mount Roraima, 3500 feet, British Guiana).— 

 Reichenow and Schalow, Journ f. Orn., XXXIV, 1886, 87 (reprint 

 orig. descr.).— ScLATER, Cat. Birds Brit. Mus., XIV, 1888, 255 (Mount 

 Roraima and Merume Mountains, British Guiana; descr.; references). — 

 Sharpe, Hand-List Birds, III, 1901, 146 (in list of species; range). — 

 Dubois, Syn. Avium, I, 1902, 251 (ref. orig. descr.; range). — Ridgway, 

 Bull. U. S. Nat. Mus., No. 50, IV, 1907, 612, note (crit.)— von Ber- 

 LEPSCH, Ornis, XIV, 1907, 477 (in list of species). — Penard, Vogels 

 Guyana, II, 1910, 261 (Guiana; descr.). — Brabourne and Chubb, 

 Birds S. Am., I, 1912, 303 (ref. orig. descr.; range). — Chubb, Birds 

 British Guiana, II, 1921, 229 (British Guiana references and localities; 

 descr.). 



Description. — Above between deep and dark grayish olive, passing into 

 dusky brownish on the pileum and sides of the head ; wings dusky brownish, 

 the coverts and secondaries with paler (light grayish olive) edgings, becom- 

 ing nearly white on the tertiaries; inner margins of remiges dull whitish; 

 upper tail-coverts and tail dusky brownish; throat and fore breast pale 

 neutral gray; rest of under surface and under wing-coverts Marguerite yel- 

 low; bill (in skin) dark brown above, paler below; feet black. 



Measurements. — Male (one specimen): wing, 93; tail, 84; bill, 17.5; 

 tarsus, 20. 



Range. — Mount Roraima and Merume Mountains, British Guiana. 



Remarks. — This proves to be a very distinct form, having nothing to do 

 with M. ferox, as suggested by Mr. Ridgway, but belonging in the same 

 group as M. pelzelni and M. sordidus, having the same small bill, relatively 

 short tail, and long outer primary. It is nearest the latter, but is decidedly 

 darker above, and has evidently been developed on the higher elevations 

 of British Guiana, where it was discovered by Whitely in 1881. 



Specimens examined. — British Guiana: Merum6 Mountains, 1. 



Myiarchus ferox ferox (Gmelin). 



"Tyrannus cayanensis" Brisson, Orn., II, 1760, 398 (Cayenne, French 

 Guiana; descr.). 



