1917.] Chapman, Distribution of Bird-life in Colombia. 217 



(230) Aramides cajanea cajanea (Mull.). 



Fulica cajanea Mull., Syst. Nat. Suppl., 1776, p. 119 (Cayenne). 

 Aramides cayennensis Cass., Proc. Acad. N. S. Phila., 1860, p. 196 (Turbo); 

 ScL. & Salv., p. Z. S., 1879, p. 545 (Remedios). 



Aramides cajanus Allen, Bull. A. M. N. H., XIII, 1900, p. 125 (Minoa). 



Generally distributed through the Tropical Zone. Specimens from the 

 Cauca Valley, upper Magdalena and Buena Vista are paler than those from 

 the Atrato and Caqueta region. The latter are more like those from Trini- 

 dad. The differences, however, do not appear to be sufficiently constant 

 to warrant racial distinction. 



Atrato River, 3; Salaqui, 1; Rio Frio, 1; Honda, 2; Buena Vista, 1; 

 Florencia, 2. 



9 



(235a) Amaurolimnas concolor guatemalensis (Lawr.). 



Corethura guatemalensis Lawr., Proc. Acad. N. S. Phila., 1863, p. 106 (Guatemala, 

 J. McLeannan). 



The type, an adtilt, and one immature specimen from Guatemala, an 

 adult from Nicaragua and one adult and one immature specimen from 

 Chiriqui, indicate on comparison with an adult from Jamaica, that the Cen- 

 tral American form may be distinguished by its smaller size, more olive 

 upperparts and darker underparts. An immature specimen from Bar- 

 bacoas appears to be referable to this form. 



(236) Anurolimnas castaneiceps {Scl. & Salv.). 



Porzana castaneiceps Sol. & Salv., P. Z. S., 1868, p. 453 (Rio Napo); Exot. Orn., 

 1869, pi. Ixxviii. 



An adult female from La Morelia agrees fairly well with Sclater and 

 Salvin's plate {I. c). 

 La Morelia, 1. 



