1917.] Chapman, Distribution of Bird-life in Colombia. 609 



(4293) Ramphocelus nigrogularis (Spix). 



Tanagra nigrogularis Spix, Av. Bras., II, 1825, p. 35, pi. 47 ("Ad flumen Soli- 

 moens"). 



Five specimens taken by Miller at La Morelia add this species to the 

 recorded avifauna of Colombia. 

 La Morelia, 5. 



,< ' i 

 (4294) Ramphocelus dimidiatus dimidiatus Lafr. 



Ramphocoelus dimidiatus Lafh., Mag. ZooL, 1837, pi. 81 (Carthagena, Col.); 

 Cass., Proc. Acad. N. S. Phila., 1860, p. 141 (Turbo); Wtatt, Ibis, 1871, p. 326 

 (Bucaramanga region up to 7000 ft.); Scl. & Salv., P. Z. S., 1879, p. 501 (Antio- 

 quia; Remedios; Nech6); Robinson, Flying Trip, 1895, p. 161 (R. Magdalena; 

 Guaduas); Stone, Proc. Acad. N. S. PhUa., 1899, p. 307 (Ambalema; Ibagile); 

 Allen, Bull. A. M. N. H., XIII, 1900, p. 168 (Cacagualito; San Antonio; Santa 

 Marta; Pueblo Viejo; Palomina; San Miguel). 



An abundant Tropical Zone bird which has ascended the Atrato Valley 

 to Quibdo, the Cauca Valley at least as far as Call, and from this point has 

 doubtless reached the arid pocket on the western slope of the Western Andes 

 at Caldas. In the Magdalena Valley it is found to the very head of the 

 valley at San Agustin where the semi-arid Tropical Zone reaches an altitude 

 of 5000 feet. Our series of seventy specimens includes essentially topotypical 

 examples from the lower Magdalena, with which the other birds in the series 

 practically agree; though specimens from the upper Magdalena "Valley are 

 slightly larger and have the throat and interscapular region somewhat darker. 



Specimens from La Chorrera, western Panama, have slightly longer 

 tails but agree minutely in color with Colombian birds. 



Quibd6, 4; Bagado, 2; Caldas, 2; Puerto Valdivia, 4; La Frijolera, 2; 



Rio Frio, 5; La Manuelita, 1; Call, 5; San Agustin, 5; La Candela, 1; 

 Andalucia (w. slope, 3000 ft.), 4; Chicoral, 8; Honda,!; El Alto de la Paz, 

 2; Tenasuca, 2; Puerto Berrio, 3; Varrud, 1; Algodonal, 5. 



(4297) Ramphocelus carbo carbo {Pall.). 

 Lanius carbo Pall., Vroeg's Cat. Rais. Adumb., 1764, p. 2 (Surinam). 



Specimens from La Morelia and Florencia and the slopes above at an 

 altitude of 2000 ft. agree with others from Napo, Santarem and Cayenne, 

 and are evidently to be referred to this form. They are very close to but 

 slightly darker than others from Suapure on the Caura River, Venezuela. 



E. slope above Florencia (2000 ft.), 1; Florencia, 7; La Morelia, 4. 



