 | This article relies largely or entirely on a single source. (May 2024) |
| Sarkidiornis | |
|---|---|
| |
| Comb duck (Sarkidiornis sylvicola) | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Anseriformes |
| Family: | Anatidae |
| Subfamily: | Tadorninae |
| Genus: | Sarkidiornis Eyton, 1838 |
Sarkidiornis is a genus within the family Anatidae comprising two species that inhabit aquatic environments in tropical and subtropical regions of South America, Africa and southern Asia.. Sarkidiornis is sometimes considered a monotypic genus with its sole member the knob-billed duck (S. melanotos), a cosmopolitan species.