This genus is distinguished by plumage more than by structure; it differs from all other Ducks in having a pink head and a dark body. The sexes differ but little from each other. The egg is peculiar and very short, subspherical in fact. The bill is lower at the base than that of Sarcidiornis, but otherwise similar. The bulba ossea at the lower end of the male trachea is very peculiarly formed, being swollen on both sides and anteriorly (see Garrod, P. Z. S. 1875, p. 153).
Only one species is known.
BookTitle:
The Fauna Of British India, Including Ceylon And Burma-birds
Reference:
Blanford, William Thomas, ed. The Fauna of British India: Including Ceylon and Burma. Vol. 4. 1898.
Title in Book:
Genus RHODONESSA
Year:
1898
Page No:
425
M_ID:
499
M_SN:
Rhodonessa
Volume:
Vol. 4
Term name:
id:
2314
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