312 Annals of the Carnegie Museum. 



by the present writer. But we cannot at all follow Mr. Hellmayr in 

 considering it a race of D. mentalis. 



A pair were encountered on July 22, 1920, in the heavy forest near 

 the eastern extremity of the Sierra Nevada range, at about 4,500 feet, 

 and the male secured. The specimen agrees absolutely with a series 

 from the Eastern Andes of Colombia. This capture is of great inter- 

 est, constituting as it does the first record for this genus in the Santa 

 Marta region, and considerably extending the known range of D. oli- 

 vaceus. It appears to belong to the Subtropical Zone, here as else- 

 where in Colombia. 



264. Erionotus punctatus gorgonaB (Thayer and Bangs). 

 Thamnophilus navius (not Lanius ncevius Gmelin) Salvin and Godman, 



Ibis, 1880, 171 (Minca). — Sclater, Cat. Birds Brit. Mus., XV, 1890, 197 



(Minca). — Bangs, Proc. Biol. Soc. Washington, XII, 1898, 138 ("Santa 



Marta"). — Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, 161 (Bonda, 



Minca, Cacagualito, and Onaca). 

 Thamnophilus navius atrimicha (not of Salvin and Godman) Hellmayr, 



Abhand. K. Bayerischen Akad. Wiss., II Kl., XXII, 1906, 659 (" Santa 



Marta," in range). 

 Erionotus punctatus atrinucha Ridgway, Bull. U. S. Nat. Mus., No. 50, V, 



191 1, 49 (Santa Marta localities and references). 

 Erionotus punctatus subcinereus Todd, Proc. Biol. Soc. Washington, XXVIII, 



1915, 80 (Don Diego; orig. descr. ; type in coll. Carnegie Mus.). — - 



Apolinar Maria, Bol. Soc. Cien. Nat. Inst. La Salle, III, 191S. 87 



(ref. orig. descr.). 

 Thamnophilus punctatus punctatus (not Lanius punctatus Shaw) Chapman, 



Bull. Am. Mus. Nat. Hist, XXXVI, 1917, 366, 367 (Santa Marta region; 



crit.). 



Twenty-nine specimens: Bonda, Buritaca, Onaca, Don Diego, La 

 Tigrera, Agua Dulce, Las Vegas, Minca, Fundacion, and Loma Larga. 



The determination of these specimens has involved a study of this 

 entire group of conspecies, the results of which it seems desirable to 

 place on record. The already large series from various regions in the 

 collection of the Carnegie Museum, amplified by specimens kindly 

 loaned by the Biological Survey and the Museum of Comparative 

 Zoology, has afforded a satisfactory basis for such a study. 



The type-locality of Erionotus punctatus (Shaw) is Cayenne Birds 

 from that locality agree with those from the Orinoco Valley in Vene- 

 zuela and the Bogota region of Colombia. The form is characterized 

 by its relatively small bill (the culmen averaging about 17.5), and by 



