NationMaster - Encyclopedia: Aythya

Aythya is a genus of diving ducks. Canvasback at Slimbridge Wildfowl and Wetlands Centre, Gloucestershire, England. ... Binomial name Aythya valisineria (Wilson, 1814) The Canvasback (Aythya valisineria) is a larger-sized diving duck. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Phyla Subregnum Parazoa Porifera (sponges) Subregnum Agnotozoa Placozoa (trichoplax) Orthonectida (orthonectids) Rhombozoa (dicyemids) Subregnum Eumetazoa Radiata (unranked) (radial symmetry) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anemones) Bilateria (unranked) (bilateral symmetry) Acoelomorpha (basal) Orthonectida (parasitic to flatworms, echinoderms, etc. ... Typical Classes Subphylum Urochordata - Tunicatas Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... For other meanings of bird, see bird (disambiguation). ... Families Anhimidae Anseranatidae Anatidae â€ Cnemiornithidae â€ Dromornithidae â€ Presbyornithidae The order Anseriformes contains about 150 species of birds in three families: the Anhimidae (the screamers), Anseranatidae (the Magpie-goose), and the Anatidae, which includes over 140 species of waterfowl, among them the ducks, geese, and swans. ... Subfamilies Dendrocygninae Thalassorninae Anserinae Stictonettinae Plectropterinae Tadorninae Anatinae Merginae Oxyurinae Anatidae is the biological family that includes the ducks and most duck-like waterfowl, such as geese and swan. ... Heinrich Boie (May 4, 1784 - September 4, 1827) was a German zoologist. ... In biology, a genus (plural genera) is a taxonomic grouping. ... Genera Marmaronetta Netta (including Rhodonessa) Aythya â€ See also dabbling duck The 16 species of diving duck, also known as pochards, make up a sub-group of the biological subfamily Anatinae, which itself is part of the diverse and very large duck, goose and swan family, Anatidae. ...

Categories: Bird stubs | Aythya | Genera of birds Binomial name Aythya valisineria (Wilson, 1814) The Canvasback (Aythya valisineria) is a larger-sized diving duck. ... Binomial name Aythya ferina (Linnaeus, 1758) The Pochard (Aythya ferina) is a medium-sized diving duck. ... Binomial name Aythya americana (Eyton, 1838) The Redhead (Aythya americana) is a medium-sized diving duck. ... Binomial name Aythya collaris (Donovan, 1809) The Ring-necked Duck (Aythya collaris) is a smaller diving duck. ... Binomial name Aythya australis Eyton, 1838 The Hardhead (Aytha australis) is the only true diving duck found in Australasia. ... Binomial name Aythya baeri Radde, 1863 The Baers Pochard (Aythya baeri) is a species of the genus Aythya. ... Binomial name Aythya nyroca (Güldenstädt, 1770) The Ferruginous Duck (Aythya nyroca) is a medium-sized diving duck. ... Binomial name Aythya innotata (Salvadori, 1894) The Madagascar Pochard (Aythya innotata) is a species probably extinct, of the genus Aythya. ... Binomial name Aythya novaeseelandiae (Gmelin, 1789) The New Zealand Scaup (Aythya novaeseelandiae) is a diving duck species of the genus Aythya. ... Binomial name Aythya fuligula (Linnaeus, 1758) The Tufted Duck (Aythya fuligula) is a medium-sized diving duck. ... Binomial name Aythya marila (Linnaeus, 1761) The Greater Scaup (Aythya marila), or just Scaup in Europe, is a small diving duck. ... Binomial name Aythya affinis (Eyton, 1838) The Lesser Scaup (Aythya affinis) is a small diving duck. ...

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Species