24.8 Mr. O. Salvin on the Birds of the 



separate the Cozumel and Jamaica birds ; the former is, 

 perliaps, on an average a little smaller. 



Z). petechia is found in Cozumel Island, to the exclusion 

 of D. bryanti and the migratorj^ T). (estiva. 



19. Dendrceca bryanti. 



Dendrceca vieilloti, var. bryanti, Ridgw. Am. Nat. viii. 

 p. 606. 



Dendrceca bryanti, Ridgw. Proc. U.S. Nat. Mus. viii. 

 p. 350. 



Holhox T. (December); Bonacca I. (September). 



These birds, of which I have a large series of examples 

 before me in all stages of plumage, no doubt belong to Mr. 

 Ridg way's D. bryanti, which I trace certainly to Western 

 Costa Rica. The birds from Panama and Northern Co- 

 lombia before me, which I take to be the true D. vieilloti, 

 have the chestnut throat less sharply defined and blended 

 with the streaks of the breast. D. bryanti is apparently the 

 only Dendrceca of this group found on Bonacca Island, but 

 on Holbox D. estiva is found along with it. 



It seems to be quite exceptional to find more than one 

 species of this group of Dendrceca on any one island, and at 

 present Holbox Island is the only one with two. The same 

 rule applies to the West-Indian Islands, where D. cestiva is, 

 I believe, unknown, even as a migrant. 



"^20. Dendrceca c^rulescens. 



Dendrceca carulescens (Gm.) ; Salv. & Godm. Biol. Centr.- 

 Am., Aves, i. p. 126 ; Ridgw. Proc. U.S. Nat. Mus. viii. 

 p. 564i. 



Cozumel I. (January). 



An adult specimen of each sex. 



The species is unknown in Mexico, and very rare in Gua- 

 temala, but is found in several of the West-Indian Islands. 



V^l. Dendrceca coronata. 



Dendroeca coronata (Linn.) ; Salv. & Godm. Biol. Centr.- 

 Am., Aves, i. p. 127. 



Meco I. (December) ; Holbox I. (December) ; Cozumel I. 

 (January) ; Ruatan I. 



