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



Here it appears to be a zonal representative of Z. r. rohinsoni, the tropical 

 or base form, which in the Temperate Zone of the Eastern Andes is repre- 

 sented by Z. r. ruficauda. 

 Barro Blanco, 2. 



Measurements of Males. 



Wing Tail Tarsus Culmen 

 Z. r. antioquice, Barro Blanco, Col. 146 104 23 17 



148.5 101 20:5 15 



Z. r. ruficauda, Bogotd Savanna, Col. 



(i a u u a i( 



" " " 'Bogotd' (Typeof bogrotewsis) 



" " " New Grenada (Type of ruficauda) 



Z. r. rohinsoni, Honda, Col. 



(174a) Chsemepelia passerina albivitta Bonap. 



Ch[amcepelia] albivitta Bonap., Consp. Av., II, 1854, p. 77 (Carthagena, Col.). 

 Chamcepelia granatina Cass., Proo. Acad. N. S., 1860, p. 195 (Carthagena). 

 Chamcepelia passerina Wyatt, Ibis, 1871, p. 383 (Santa Marta). 

 Columbigallina passerina Robinson, Flying Trip, p. 154 (Barranquilla). 

 Columbigallina passerina granatina Allen, Bull. A. M. N. H., XIII, 1900, p. 128 

 (Bonda; Santa Marta). 



This pale form is doubtless restricted to the arid coastal zone. Our 

 specimens are essentially topotypical. 

 La Playa, 6. • 



(1746) Chsemepelia passerina parvula Todd. 



Chcemepelia passerina parvula Todd, Ann. Carn. Mus., VIII, 1913, p. 544 (Honda, 

 Col.). 



Columbigallina passerina Robinson, Flying Trip, p. 154 (Honda; Guaduas). 



Common in the Tropical Zone of the upper Magdalena Valley. The 

 small size of a young female from Quetame induces me to refer it provision- 

 ally to this form. Probably our very inadequate series of this and the suc- 

 ceeding representatives of this genus may be attributed to their abundance ! 

 This inspired the belief that specimens could be collected when the search 

 for rarer birds was less pressing — a time which never came. 



Our series of the forms of passerina is therefore not large enough to 

 warrant a review of Mr. Todd's work on Colombian Ground Doves, and I 



1 Measurements from type in the British Museum by Ghas. Chubb. 



