1917.] Chapman, Distribution of Bird-life in Colomhia. 553 



Strongly suffused with brownish. Two males average, wing, 63; tail, 54; 

 tarsus, 19.5 mm., while Trinidad and northeast Venezuela males average 

 wing, 58; tail, 52 mm. 

 Buena Vista, 4. 



(3682) Basileuterus rufifrons mesochrysus Scl. 



Basileuterus mesochrysus Sch., P. Z. S., 1860, p. 251 (Bogota); Wyatt, Ibis, 

 1871, p. 323 (Herradura; Cocuta Valley); Allen, Bull. A. M. N. H., XIII, 1900, 

 p. 176 (Bonda; Minoa; Cacagualito; Manaure; Chirua; Santa Marta; Palomina). 



Found only in the semi-arid Tropical Zone of the Magdalena River. 

 Near Honda, 1; Chieoral, 3; below Andalucia (3000 ft.), 10. 



(3690) Basileuterus fulvicauda semicervinus Scl. 



Basileuterus semicervinus Scl., P. Z. S., 1860, p. 84 (Nanegal, w. Ecuador); 

 Scl. & Salv., P. Z. S., 1879, p.- 494 (Remedios; Neoh6). 



Basileuterus fulvicauda semicervinus Hellm., P. Z. S., 1911, p. 1092 (Juntas, R. 

 Dagua; Rio Garrapatas; Sipi). 



Inhabits the Tropical Zone of the Pacific coast and extends eastward 

 through Antioquia where the more olive-green color of four specimens from 

 Peque and Puerto Valdivia show that it evidently merges into the gray- 

 crowned, olive-green backed Magdalena Valley form. Our specimens agree 

 with a series from western Ecuador. 



Alto Bonito, 2; Bagado, 1; Juntas de Tamana, 3; No vita, 1; San 

 Jose, 5; Barbacoas, 6; Ricaurte, 1;- Puerto Valdivia, 1; Peque, 1. 



(3691) Basileuterus fulvicauda fulvicauda (Spix). 



J 

 Musdcapa fulvicauda Spix, Av. Bras., II, 1825, p. 20, pi. xxviii (BraziKan Ama- 

 zons) = Basileuterus uropygialis Scl., P. Z. S., 1861, p. 128 (Brazil). Cf. Hellm., 

 Abhk. Akad. der Wiss., 1906, p. 652. 



With but one specimen from Chieoral and two 'Bogota' skins, I am 

 unable to determine satisfactorily the status of this species in the Magdalena 

 Valley and Bogota region. It is evident that two forms are represented by 

 these three specimens. Probably the Bogota skins came from the Villa- 

 vicencio region when they should perhaps be referred to B. f. fulvicauda 

 (Spix), while the Chieoral bird should be described as new. Although 

 obviously faded, the Bogota skins have the underparts and basal part of the 

 tail darker in color while the crown is darker, less ashy and the back browner; 

 the color of this part, however, has unquestionably changed. These 



