364 Bulletin American Museum of Natural History. [Vol. XXXVI, 



form, C I. lineatus, occurs. Five males and two females agree with Panama 

 specimens. 



Novita, 1; Noanama, 1; Barbacoas, 5. 



(1858) Taraba unduliger {Pelz.). 



Thamnophilus unduliger Pelz., Orn. Bras., 1869, p. 75 (Maribitanas). 



An adult male appears to be referable to this species of which, however, 

 I have seen no authentic specimens. 

 La Morelia, 1. 



(1862) Taraba transandeana transandeana (Scl.). 



Thamnophilus transandeanus ScL., P. Z. S., 1855, p. 18 (Guayaquil); Cass., 

 Proc. Acad. N. S. Phila., 1860, p. 188 (Turbo). 



Thamnophilus major transandeanus Hellm., P. Z. S., 1911, p. 1157 (Guineo, 

 Rio Calima; El Tigre, R. Tamand; La Selva, R. Jamaraya, alt. 4600 ft.). 



Inhabits the Tropical Zone of the Pacific coast. I find also that two 

 males and three females from Rio Frio, in the Cauca Valley, are to be re- 

 ferred to this form rather than to granadensis of the Bogota region. The 

 males have the lower tail-coverts black tipped with white, and the females 

 are fully as dark as specimens from the coast. A male from La Manuel- 

 ita, in the Cauca Valley, is less typical, the under tail-coverts being less 

 black, their white margins broader, but it may be referred to transandeana 

 rather than to granadensis. 



The appearance of characters of humid Pacific coast forms in the speci- 

 mens from the comparatively arid Cauca Valley, indicates that the charac- 

 ters may have been acquired before the form entered the Valley. 



Alto Bonito, 7; La Vieja, Choco, 1 ; Baudo, 1; San Jose, 3; Barbacoas, 

 6; Rio Frio, 5; Palmira, 1. 



(1863) Taraba transandeana granadensis (Cab.). 



Diallactes granadensis Cab., J. f. O., 1872, p. 234 (Bogota). 

 ^Thamnophilus transandeanus Sol. &. Salv., P. Z. S., 1879, p. 524 (Remedios; 

 Nechg). 



Inhabits the Tropical Zone of the Magdalena River and also the eastern 

 base of the Eastern Andes. Hellmayr (P. Z. S., 1911, p. 1158) has de- 

 scribed the differences distinguishing this race from T. t. transandeana. 



