ORDER XVII.— PYGOPODES. 
FAMILY. — COLYMBIDiE. 
COLYMBUS. 
Colymbus, Linnseus, Syst. Nat. i. p. 220 (17 66) partim. 
3084. Colymbus septentrionalis. 
Colymbus septentrionalis, Linn. 1. s. c. : Dresser, B. Eur. viii. 
p. 621, pi. 628. 
a , — b Orkney (E. Forbes) 1837. — c Britain (V. C. Strick- 
land) 1838. 
3085. Colymbus arcticus. 
Colymbus arcticus, Linn. Syst. Nat. i. p. 221: Dresser, B. Eur, 
viii. p. 615, pi. 627. 
a N. Europe (/. C. Kinberg) 1843. 
3086. Colymbus glacialis. 
Colymbus glacialis, Linn. Syst. Nat. i. p. 221 : Dresser, B, 
Eur. viii. p. 609, pi. 626. 
a, —b Orkney (E. Forbes) 1837. 
FAMILY. — PODIC1PEDIDJE. 
PODICEPS. 
Podiceps, Latham, Gen. Syn. Suppl. i. p. 294 (1787). 
3087. Podiceps cristatus. 
Colymbus cristatus , Linn. Syst. Nat. i. p. 222. 
Podiceps cristatus , Dresser, B. Eur. viii. p. 629, pi. 629. 
a Constantinople, March {H. E . Strickland) 1836. — b (. N \ 
C. Strickland) 1838. 
