SUBFAM. X. MeErGaAnetrina 
The Torrent-Ducks of the Andes of South America, 
composing this subfamily are allied to the Lake-Ducks and to 
the Mergansers. There are three species, none of which have 
been introduced into living collections. They are as follows :— 
Salvadorina, Hymenolemus, and Merganetta. 
GENUS SAZLVADORINA. 
(Salvadorina waiginensts ). 
This remarkable bird, named after Count Salvadori, is 
another of the little-known mountain-stream ducks. It is 
represented by a single skin in the Rothschild Collection, which 
was brought from the Island of Waigiou, in the Pacific Ocean. 
I append the description given by Salvadori :— 
‘« Bill a little shorter than the head. Feet and Jegs moderately 
large, middle toe not quite one-third longer than the tarsus ; hind toe with 
small webs. Wings well developed, about one-third longer than the tail 
and with the second quill longest ; first and third only a little shorter. Tail 
very long, about five times as long as the tarsus, much pointed, and some- 
what stiff, consisting of fourteen feathers. General appearance singular ; 
above black, barred with white. 
“It seems difficult to state the nearest ally to this remarkable genus, 
but there is certainly no near ally among the few species of Anatide known 
to inhabit New Guinea and the adjacent islands, and it resembles more 
some American genera. Its varied appearance reminds one of Vomonyx 
dominicus from tropical America, which however, is totally different, having 
an entirely different bill, much shorter wings, stiffer tail, shorter tarsus, &c. 
In the length of the tail the new genus resembles the South American 
Merganetta, which, among other differences, differs by the sharp and bare 
spur on the bend of the wing, the narrow bill, &c. | These likenesses, how- 
ever, may be merely superficial, and it must be left to further investigations 
whether the genus Sa/vadorina should be actually placed near to these 
genera.” 
