1917.] Chapman, Distribution oj Bird-life in Colombia. 291 



may doubtless consider a representative series of true melarwrhynchus. 

 Using this series for comparison, I am miable to find any characters in our 

 series of twenty-five adult males from western Colombia, by which the 

 Colombian bird may be separated from the species I assume to be melan- 

 orhynchus. There are some slight geographic variations in size and color, 

 birds from northwestern Colombia .averaging smaller and possibly duller 

 on crown and belly, but the differences are too inconstant to be of diagnostic 

 value. 



I have seen no authentic specimens of the bird known as C. pumilus 

 Gould. The characters usually assigned to it, however, are covered by the 

 variations shown by the series here imder consideration. 



Dabeiba, 5; Barro Blanco, 1; Caldas, 5; Las Lomitas, 5; San Antonio, 

 3; Call, 3; Miraflores, 6; Popayan, 1; Cerro Munchique, 2; La Florida, 1; 

 La Sierra, 1 ; Ricaurte, 4. 



Measurements of Males. , 



(1153) Chlorostilbon poortmani poortmani {Bourc. & Muls.). 



Omismya poortmani Bourc. & Mtjls., Ann. Sc. Phys. et Nat. Lyon, VI, 1843, 

 p. 39 (Colombia). 



Our specimens are from the upper margin of the Tropical Zone on the 

 eastern slope of the Eastern Andes. 

 Quetame, 2; Buena Vista, 1. 



(1168) Thalurania fannyi fannyi (Delatt. & Bourc). 



Trochilus fannyi Delatt. & Boubc, Rev. Zool., 1846, p. 310 (Rio Dagua near 

 Buenaventura). 



Thalurania fannice Simon & Dalm., Ornis XI, 1901, p. 221 (Buenaventura; 

 El Paillon; Naranjo). 



Thalurania fannyi Hellm., P. Z. S., 1911, p. 1183 (Pueblo Rico; Noanamd). 



Inhabits the entire Pacific coast Tropical Zone, and ranges northward 

 to eastern Panama (Tapalisa; Tacarcuna) and northeastward into the lower 

 Cauca region of Antioquia. It ascends the Western Andes to the Subtropi- 

 cal Zone, Hellymayr (l. c.) recording it from Pueblo Rico (alt. 5200 ft.). 

 Our specimens, however, from the Subtropical Zone of the Western Andes 



