from British Guiana. 181 
Larus atricilla, Baird, Brew., & Ridgw. Water-Birds N. 
Am. i. p. 254. 
Not represented in Mr. Whitely^s collection. 
( 613*. PoniCEPS DOMIN1CUS. 
Colymbus dominicus , Linn., Cab. in Schomb. Guiana, iii. 
p. 765. 
Podiceps dominicus , Baird, Brew., & Ridgw. Water-Birds 
N. Am. i. p. 438. 
Not represented in Mr. Whitely^s collection. 
614. Tinamxjs subcristatus. 
Trachypelmus subcristatus , Cab. in Scbomb. Guiana, iii„ 
p. 749. 
Bartica Grove, Camacusa, Merume Mountains, Roraima 
(3500 ft.). 
615. Crypturus variegatus. 
Crypturus variegatus (Gm.), Cab. in Schomb. Guiana, iii. 
p. 748. 
Bartica Grove, Camacusa, Merume Mountains. 
C. noctivagus, a species of South-eastern Brazil, is included 
in Prof. Cabanis's list of SchomburglCs collection; but it is 
open to doubt if it, as well as its near ally, C. variegatus , both 
occur in British Guiana. 
-]- 616. Crypturus pileatus. 
Crypturus sovi (Gm.), Cab. in Schomb. Guiana, iii. 
p. 748. 
Bartica Grove, Merume Mountains, Roraima (3500 
ft.?). 
In the next Number of this Journal I hope to conclude 
this paper with a summary showing the relationships of the 
Bird-fauna of this portion of Guiana with that of the rest of 
South America. 
[To be continued.] 
