The flightless _Nesonetta aucklandica_, of the Auckland group, hardly differs in colour from _Elasmonetta chlorotis_, of the New Zealand area, which is brown waved with black and rufous above, chestnut and reddish with black spots below, the speculum being green and black, the gorget whitish. The female is rufous brown. _Dafila acuta_, the Pintail or Sea-Pheasant of the northern regions generally, reaching North Africa, Ceylon, the Sandwich Islands, Panama, and elsewhere in winter, has a brown head and nape, a white line down each side of the neck, grey upper parts vermiculated with dusky, long black scapulars and rectrices mostly edged with white, a purple-green speculum margined in turn with black and white, a cinnamon bar on the wing-coverts, and a white breast. The female is greyish with brown speculum and ochraceous barring above, the markings being oblique on the tail. It now breeds in Scotland. _D. eatoni_, of Kerguelen Island and the Crozets, has a grey breast; _D. spinicauda_, ranging from Peru and South Brazil to Patagonia and the Falklands, has a rufous head and blackish speculum, the sexes being nearly alike, as in the next genus. _Poecilonetta bahamensis_ of the Bahamas, Antilles, and South America, _P. galapagensis_ of the Galapagos, and _P. erythrorhyncha_ of South and East Africa with Madagascar, are somewhat similar birds, having reddish plumage spotted with black, whitish cheeks and throat. In the first two the tail is buff, in the third the bill is chiefly pink, the speculum in all being much as in _Dafila_.