1917.1 Chapman, Distribution of Bird-life in Colombia. 515 



common in this zone in eastern Panama, whence we have seven specimens 

 from Tacarcuna. In juvenal plumage the crown is umber, the throat and 

 sides of the head below the eye blackish gray, the breast but slightly tinged 

 with rusty. 

 Gallera, 1. 



(3404) Pheugopedius fasciato-ventris fasciato-ventris {Lafr.). 



T[hriothortis] fasciato^entris Lafr., Rev. Zool., 1845, p. 337 (Bogotd). 

 Thryothorus fasciativentris Scl. & Salv., P. Z. S., 1879, p. 493 (Remedies; Neohl) . 



This species appears to be restricted to the lower Cauca and Magdalena 

 Valleys. Two native skins are from Anolaima on the western slope of the 

 Eastern Andes. Specimens from the Magdalena Valley show much varia- 

 tion in the intensity of the color of the upperparts, barring of the underparts 

 and amount of white on the auriculars. In only one, however, a female 

 from near Honda, do the bars below reach the white breast, a band of 

 black, unbarred, bordering the breast posteriorly in the others. 



Puerto Valdivia, 1; Malena, 2; Algodonal, 1; Honda, 1; "Ano- 

 laima," 2. 



(3405) Pheugopedius mystacalis mystacalis (Scl.). 



Thryothorus mystacalis Sol., P. Z. S., 1860, p. 64 (Pallatanga, Ecuador); Scl. & 

 Salv., P. Z. S., 1879, p. 493 (Sta. Elena). 



Pheugopedius mystacalis saltuensis Bangs, Proo. Biol. Soc. Wash., XXIII, 1910, 

 p. 74 (San Luis, Bitaco Valley, Colombia). 



A common species in the Subtropical Zone of the Western and Central 

 Andes, and occurring also in the Eastern Andes. Six specimens from San 

 Antonio and Las Lomitas in the Western Andes, are essentially topotypical 

 and agree with the type and topotype of P. m. saltuensis, loaned me by Mr. 

 Bangs. 



Compared with two Ecuadorian specimens in the Philadelphia Academy 

 of Sciences, which agree with Sclater's description, and are from Bucay 

 (alt. 975 ft.), and the junction of the Chanchan and Chiguancay Rivers 

 (alt. 2500 ft.), both near Pallatanga, the type locality of mystacalis, the 

 Colombian birds have slightly longer tails and the brownish gray of the 

 crown appears to extend somewhat further backward, a difference, however, 

 which may in part be due to the make of the skins. Some specimens from 

 the Eastern Andes agree exactly in color and in the extent of the nape area 

 with the Ecuador birds, while others are like those from the Western Andes. 

 If therefore we recognize saltuensis we must also include mystacalis as a 

 Colombian bird, and under conditions of distribution which imply that, to 



