124 
Genus OrpEemMta. 
The members of this little division of the Diving Ducks are ren- 
dered remarkable by their velvety black covering, as well as the 
bright colouring of some of the soft parts, particularly of the bill 
and the naked portions of the head of one species. They are strictly 
denizens of the salt waters, resorting to freshwater lakes only for 
the purpose of breeding. 
345) OmEnra WIERA ct og) Kado) trtfokl m TRVol WV aR] ekav aii: 
Scorer. 
Very common along our coasts in winter; a fair number stay to 
breed in Caithness and Sutherland. 
SAG. (OIEMIA FUSCA ©. «0s -s Gow ie MolerVe RlgeOriwe 
VeELveEt Scorer. 
A common winter bird in the Orkney and Shetland Islands ; soli- 
tary individuals have been killed on the Thames and even further 
south. 
347, OIDEMIA PERSPICILLATA . . . » « « Vol: V. Plexo 
Surr-Scorerk. 
Quite an accidental visitor from the coasts of North America ; has 
been killed about ten times in Britain. 
Genus CLANGULA. 
The Golden-eye, Barrow’s Duck, and the Buftle-headed Duck are 
about the only members of this genus; like several of the pre- 
ceding forms they seek their food at the bottom of the shallow parts 
of the seas, the inlets of rivers, &e. 
348. CLANGULA GLAUCION «ow 6) ee CV OLY Sab eerie 
GOLDEN-EYD. 
A true winter visitant, said to have once found a breeding-place 
on Loch Assynt in Sutherland. Breeds in Lapland. 
CLANGULA ALBEOLA. 
349. Buffle-headed Duek. 
This American bird having been killed four or five times in Eng- 
land, some have included it in our ayifauna; and so do J, but with- 
out figuring it. 
Genus Hisrrionicvs. 
The fantastically marked Harlequin Duck is the type and only 
known species of this genus, 
