page_title: Anatinae
section_title: Genera
hierarchical_section_title: Anatinae / Genera
caption_attribution_description: Anas formosa at Aqua Zoo in Leeuwarden (The Netherlands) Cropped so not very sharp.
context_page_description: The Anatinae are a subfamily of the family Anatidae. Its surviving members are the dabbling ducks, which feed mainly at the surface rather than by diving. The other members of the Anatinae are the extinct moa-nalo, a young but highly apomorphic lineage derived from the dabbling ducks.
  There has been much debate about the systematical status and which ducks belong to the Anatinae. Some taxonomic authorities only include the dabbling ducks and their close relatives, the extinct moa-nalos. Alternatively, the Anatinae are considered to include most "ducks", and the dabbling ducks form a tribe Anatini within these. The classification as presented here more appropriately reflects the remaining uncertainty about the interrelationships of the major lineages of Anatidae.
context_section_description: The following genera are (with one exception) unequivocal dabbling ducks:
  Amazonetta – status not fully resolved, most likely a dabbling duck
  Sibirionetta – Baikal teal
  Spatula
  Mareca
  Lophonetta – crested duck
  Speculanas –bronze-winged duck
  Anas
   
  The three known genera and four known species of moa-nalos all became extinct around AD 1000. They formerly occurred on the Hawaiian Islands and were derived from dabbling ducks, possibly even from a close ancestor of the mallard:
  Chelychelynechen
  Thambetochen
  Ptaiochen
   
   
  Subfossil remains of a small, flightless dabbling duck have been recovered on Rota in the Mariana Islands. These cannot be assigned to a known genus, but probably are closest to Anas. A most bizarre duck-like bird, Talpanas lippa has been found on the Hawaiian island of Kauai. Because of its unique apomorphies (it seems to have had small eyes high and far back on its head), the placement of this anatid is likewise unresolved; only dabbling ducks and true geese are with certainty known to have colonized the Hawaiian archipelago.
  Another bizarre insular anatine was Bambolinetta from the Late Miocene of Tuscana, then part of the Tuscano-Sardinian insular landmass. Flightless or at least a poor flyer, it instead shows adaptations for wing-propelled diving, occupying a similar ecological niche to that of penguins and plotopterids.
  Frequently placed into the Anatinae are these genera, whose relationships must be considered uncertain at present:
  †Chenoanas?
  †Dunstanetta (Johnstone's duck)
  †Lavadytis
  †Pinpanetta
  †Tirarinetta
  Oxyurini (stiff-tailed ducks)
  Heteronetta (black-headed duck)
  Nomonyx (masked duck)
  Oxyura
  Biziura – Oxyurini?
  Aix – Tadorninae?
  Cairina – may be paraphyletic, with one species in Tadorninae and the other closer to diving ducks
  Callonetta – Tadorninae?
  Chenonetta – Tadorninae?
  Pteronetta – may belong into a distinct clade with Cyanochen
  Nettapus – part of ancient Gondwanan lineage?
  Mergini - (seaducks)
  Chendytes (extinct)?
  Shiriyanetta (extinct)
  Polysticta
  Somateria
  Histrionicus
  Camptorhynchus (extinct)
  Melanitta
  Clangula
  Bucephala
  Mergellus?
  Lophodytes?
  Mergus?
  On the other hand, the following genera, usually considered to belong into the Tadorninae, may actually be dabbling ducks:
  Sarkidiornis
  Tachyeres
caption: Baikal teal (Sibirionetta formosa)
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