510 Mr. P. R. Lowe — Observations 



Coll. Rothschild; ten from Tobago and Triuidad iu Coll. 

 P. R. L. 



If a fairly large series of birds from these two islands is 

 compared with a similar series from or near the typical 

 locality they arc easily seen to be of a deeper and richer 

 coloratiou, both above and below, and to have larger 

 measurements. The grey of the throat-patch is also darker. 



CCEREBA CERIXOCLUNIS. 



Cwreba mexicana columbiana Bangs, Auk, xviii. 1901, p. 30 

 (San Miguel Island, Panama). 



CdTeba cerinoclunis Baugs, Proc. New Engl. Zool. Club, 

 ii. 1901, p. 52 (Sau Miguel Island, Panama, Coll. E. A. & 

 O. Bangs) ; Ridgway, Birds N. & M. Araer. pt. ii. 1902, 

 p. 408. 



Hab. Island of San Miguel, Bay of Panama, Columbia. 



I have not seen an example of this species. Judging by 

 Mr. Bangs's description the upper parts differ from C. mexi- 

 cana in being sooty black (as in C. hiteola) ; the rump is 

 olive-yellow, becoming purer yellow below ; there is a large 

 and conspicuous wbite wing-spot, and the yellow of the 

 under parts is or a bright lemon coloration {cf. Ridgw. /. c). 



From the description, therefore, it is obvious that this 

 species is quite distinct from C ?nexicana and rather close 

 to C. luteola. 



COEREBA GORGOX^. 



Coereba gorgona: Thayer & Bangs, Bull. Mus. Comp. Zool. 

 Harvard, vol. xlvi. p. 97. 



Type. Coll. E. A. & O. Bangs. Gorgona Island, 1904. 



Wing, J (J, 55*5-57'5 mm.; culmen 13-13'5 mm. 



Hab. Gorgona Island, West Coast of Columbia. 



Mr. Baugs says of this species, which I have never seen : 

 '' A very distinct species, nearest to C. cerinoclunis Bangs, 

 of the Pearl Islands, Bay of Panama. Differs in the much 

 smaller — reduced to a mere dot — white wing-spot, much 

 deeper black back, darker grc}^ throat, darker and more 

 greenish-yellow belly, and in having a greenish band bordering 



