Sarkidiornis

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Sarkidiornis
Comb duck.jpg
Knob-billed duck (Sarkidiornis melanotos)
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Anseriformes
Family: Anatidae
Subfamily: Tadorninae
Genus: Sarkidiornis
Eyton, 1838

Sarkidiornis is sometimes considered a monotypic genus with its sole member the knob-billed duck (S. melanotos), a cosmopolitan species. Most taxonomic authorities split the species into two:

Image Scientific name Common Name Distribution
Knob-billed duck (Sarkidiornis melanotos) male.jpg Sarkidiornis melanotos Knob-billed duck Sub-Saharan Africa, Madagascar and south Asia from Pakistan to Laos and extreme southern China
Sarkidiornis sylvicola (male, captive).jpg Sarkidiornis sylvicola Comb duck eastern Paraguay, southeastern Brazil and the extreme northeast of Argentina


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