362 



PYGOPODE8. 



tljc Arctic Regions, and three of wliich visit Japan in winter. The 

 Podicipida number Ijetween twenty and thirty species, which are 



r'eiuur and front part of tibia. 



distributed over the rest of the world, includinf^ Madagascar, Aus- 

 traba, and New Zealand, but not the Pacific Islands. Five of the 

 rodiei])i(lce breed in Japan. 



368. COLYMBUS ADAMSI. 

 (WIIITK-BILLKD DIVEH.) 



Colymhus admiixii, (5 ray, Proc. Zool. Soc. LS^O, ]i. 1(17. 



This species may always be recognized by its hill, which is nearly 

 white, not decurvcd, and very large (height at nostrils 1^ to 1 inch, 

 instead of, as in ('. ylacialis, from 1 to ^ inch). 



Figures : Elliot's liirds of North America, pi. 63. 



There can scarcely bo any doubt tiiat the (ircat Northern Divers 



