452 WEB-FOOTED BIRDS. 



brown ; the secondaries black, tipped with white ; the tertiaries violet 

 black externally, white internally, they are also pointed and curved 

 outwards towards their extremities. Vent and tail black, the latter 

 short and pointed. Bill black. Iris pale brown. The feet black. — 

 The female is ferruginous marked with dusky and black, with two 

 white spots upon the wing coverts, the feathers of which are straight 

 and blackish. This is the Jinas ferruginea of Latham. 



Subgenus. — Harelda. (Genus of, Leach.) 



With the bill very short, and high at the base, the nail broad and 

 arched; laminae distant, prominent, and cutting; the upper ones 

 projecting below the margin of the mandible ; the lower ones also 

 considerable as the upper, and divided into two nearly equal rows. 

 JYostrils large and oblong, almost basal. Front high ; the neck rath- 

 er thick. Tail very long and tapering composed of 14 feathers. 

 Toes short. 



This is altogether a marine species, inhabiting the arctic regions 

 of both continents. It is generally gregarious, feeds on marine pro- 

 ductions, vegetable and animal, and is remarkable in winter for its 

 noisy vociferation. The plumage varying in color with the season. 



