113 Mr. P. R. Lowe on the 



I have unfortunately never made notes of the soft parts 

 of this form in the fresh state. Mr. Ridgway (Manual N. 

 Am. Birds^ p. 591) says that the wings are on an average 

 rather longer and the bill much smaller or more slender than 

 in C. passerina. The bill is ''often (always in fully adult 

 males ?) red basally.^' 



The specimens of this form that I have seen are very pale 

 in plumage, so conspicuously so that they can easily be picked 

 out from a collection of other forms. i 



This form inhabits the South-western United States 

 (Texas to Arizona and Lower California) and south through 

 Mexico (on both coasts) to Central America (Ridgway). 

 I have only met with it near Tampico in Eastern Mexico. 



Cham^epelia socorroensis. 



Coluinbigallina passerina socorroensis Ridgw. Man. N. Am. 

 Birds, p. 586 (1887). 



Chaino'pelia socorroensis Salv. & Godm. Biol. Centr.-Amer., 

 Aves, iii. p. 252 (1902). 



I have never met with this form from the Socorro Islands. 



Cham.'epelia bahamensis. 



Columbigallina passerina bahamensis Mayn. Amer. Exch. 

 & Mart, vol. iii. no. 4, p. 69 (1887). 



Mr. Maynard described the Ground-Dove of the Bahamas 

 as " similar to the Common Ground-Dove, but with the bill 

 constantly and wholly black, and much smaller and paler." 



I have examined the series of this species in the British 

 Museum, which includes Mr. Maynard's types, and also 

 have to thank Mr. Bonhote for allowing me to compare four 

 specimens which he collected in the Bahamas. The bills of 

 all the specimens appear to be wholly black, but whether 

 ttiere was, or was not, originally a basal cast of crimson 

 (as in C. aflavida) it is difficult to say : Mr. Bonhote's 

 specimens, which were obtained in 1904, sjiew no traces of it. 



In both sexes the upper parts are of a pale ashy brown, 

 while the pink coloration beneath in the males is also 

 very pale. 



