structure, etc., [49] f.

Colymbiformes, [49] f.

Colymboïdes, fossil, [50]

Colymbomorphae, [48]

Colymbus adamsi, [50];

C. arcticus, [50];

C. glacialis, [50], [51];

C. pacificus, [50];

C. septentrionalis, [50]

Coly-Shrike, [527], [527]