108 Mr. P. K. Lowe on the 



Ground-Dove of Carolina with that of Jamaica. These two 

 forms, however, are not, in my opinion, identical. Linnaeus, 

 therefore, having left us in doubt as to the locality to 

 which his C. passerirta belonged, it remains to consider 

 what names the Jamaican and the North- American birds 

 ought to bear. 



For those who wish to retain the name passerina of 

 Linnaeus the birds of the latter locality would appear to be 

 best qualified to bear it ; but as the question is not free from 

 doubt it Avould appear better^ as I have suggested, to drop the 

 name " passer'ina" altogether and call the Jamaican bird 

 C. Jamaicensis, while Mr. Chapman's name terrestris would 

 still be assigned to the North- American form. 



I have myself lately shot and skinned a scries of sixty- 

 nine of these Ground-Doves, and the following notes are 

 chiefly founded on specimens in my collection. For much 

 kind help at the British Museum I once more have to thank 

 Dr. Bowdler Sharpe and Mr. Charles Chubb. 



I begin by characterizing a new form as 



Cham.'EPElia portoricensis, sp. nov. 



Nine males and three females from Guanica, Puerto Rico 

 (Feb. 1907). 



The bills of this form in the perfectlij fresh state have the 

 base crimson and the tip varying from brownish black to 

 black. The crimson colour occupies at least two-thirds of the 

 hinder end of the bill, running abruptly up to the black tip. 

 In this respect it differs markedly from the Cuban form 

 C. p. aflavida, Avhere we have only a faint wash of dull 

 crimson at the extreme base, the rest of the bill being blackish. 

 The iris varies from hazel to light stone-yellow, according to 

 sex and age. There is a narrow edging of stone-yellow along 

 the edges of the upper and lower lids. The wings of nine 

 males average 80*9 mm., those of three females 79'5 mm. 



In the Bahaman form [C. bahamensis) the bill was described 

 by Mr. Maynard as being " constantly and wholly black,^' and 

 this is one of the characters on which he established the 

 species. 



