344 Annals of the Carnegie Museum. 



Nos. Z7:77^^! Cincinnati, June i6, are in juvenal plumage, having 

 the streaking on the under parts almost obsolete, the superciliary and 

 malar stripes more buffy, the under mandible dark at the base, and the 

 back brownish olive, vs^ith the pileum a little darker and browner, and 

 without a trace of a median crown-spot. February and March adults 

 are more richly colored than those taken in June, with the margins of 

 the remiges and rectrices rufous rather than buffy. 



On the San Lorenzo this bird is found between 4,000 and 6,000 feet, 

 but in the Sierra Nevada its range drops down to nearly 2,000 feet. 

 In its faunal distribution it may be considered essentially Subtropical, 

 but it is not an abundant bird anywhere. Ordinarily it is a forest- 

 dweller, keeping to the tops of the trees, but occasionally it ventures 

 into the higher parts of the coffee haciendas or plantations. 



296. Myiodynastes maculatus maculatus (Miiller). 



Myiodynasies nobilis Sclater, Proc. Z06I. Soc. London, 1859, 42 (" Santa 

 Marta " ; orig. descr. ; type now in coll. Brit, Mus. ; crit.) . — Sclater, Cat. 

 Am. Birds, 1862, 223 ("Santa Marta")- — Sclater and Salvin, Proc. Z06I. 

 Soc. London, 1864, 360 ("Santa Marta"). — Giebel, Thes. Orn., II, 1875, 

 669 (ref. orig. descr.). — von Berlepsch, Journ. f. Orn., XXXII, 1884, 303, 

 in text ("Santa Marta"; crit.). — Sclater, Cat. Birds Brit. Mus., XIV, 

 1888, 183 (Santa Marta, Minca, Valle de Upar, and Manaure). — -Bra- 

 bourne and Chubb, Birds S. Am., I, 1912, 294 (ref. orig. descr.; range). 



Myiodynastes audax Salvin and Godman, Ibis, 1879, 201 (Manaure). 



Myiodynastes audax nobilis Bangs, Proc. Biol. Soc. Washington, XII, 1898, 

 137 ("Santa Marta"), 176 (Palomina). — Allen, Bull. Am. Mus. Nat. 

 Hist., XIII, 1900, 145 (Bonda, Minca, and Cacagualito) ; XXI, 1905, 283 

 (Bonda; descr. nest and eggs). 



Myiodynastes maculatus nobilis Ridgway, Bull. U. S. Nat. Mus., No. 30, 

 IV, 1907, 659 (Santa Marta localities and references). — -Chapman, Bull. 

 Am. Mus. Nat. Hist, XXXVI, 1917, 463 ("Santa Marta"). 



Additional records : Fundacion (Carriker). 



Twenty-five specimens : Bonda, Buritaca, Cacagualito, Don Diego, 

 Cincinnati, Minca, Mamatoco, and La Tigrera. 



After examining and comparing a good series of specimens from 

 Costa Rica, Colombia, Venezuela, Trinidad, and French Guiana, it is 

 our deliberate judgment that they belong to one and the same form. 

 Individual and seasonal variation in birds from the same region far 

 outweighs the geographical variation alleged to exist. There is cer- 

 tainly no constant difference in the character and extent of the streak- 



