Editing Mergini (section)

==Species==
There are twenty-two species in ten [[genus|genera]]:
{| class="wikitable"
|-
! Image !! Genus   !! Living Species
|-
|[[File:Clangula hyemalis Hokkaido25 (cropped).jpg|250px]]|| ''[[Clangula]]'' {{au|Leach, 1819}}||
* [[Long-tailed duck]] (formerly [[oldsquaw]]) (''Clangula hyemalis'')
|-
|[[File:Harlequin ducks (Histrionicus histrionicus) (13022042595).jpg|250px]]|| ''[[Histrionicus]]'' {{au|Lesson, 1828}}||
* [[Harlequin duck]] (''Histrionicus histrionicus'')
|-
|[[File:Camptorhynchus labradorius (pair) -John James Audubon.jpg|250px]]|| †''[[Camptorhynchus]]'' {{au|}}||
* †[[Labrador duck]] (''Camptorhynchus labradorius'') ([[extinct]]) 
|-
|[[File:Steller's Eider (Polysticta stelleri) (13667583535).jpg|250px]]|| ''[[Polysticta]]'' {{au|Eyton, 1836}}||
*[[Steller's eider]] (''Polysticta stelleri'') 
|-
|[[File:Somateria spectabilis 389138499.jpg|250px]]|| ''[[Somateria]]'' {{au|Leach, 1819}}||
* [[Spectacled eider]] (''Somateria fischeri'') 
* [[Common eider]] (''Somateria mollissima'')
* [[King eider]] (''Somateria spectabilis'')
|-
|[[File:WWT Arundel (2552).jpg|250px]]|| ''[[Melanitta]]'' {{au|F. Boie, 1822}}||
* [[Common scoter]] (''Melanitta nigra'')
* [[Black scoter]] or [[American scoter]] (''Melanitta americana'') (sometimes considered a [[subspecies]] of ''M. nigra'')
* [[Velvet scoter]] (''Melanitta fusca'') 
* [[White-winged scoter]] (''Melanitta deglandi'')  (sometimes considered a subspecies of ''M. fusca'') 
*[[Stejneger's scoter]] (''Melanitta stejnegeri'')
* [[Surf scoter]] (''Melanitta perspicillata'')
|-
|[[File:Common Goldeneye (Bucephala clangula) RWD2.jpg|250px]]|| ''[[Goldeneye (duck)|Bucephala]]'' {{au|S.F. Baird, 1858}}||
*[[Common goldeneye]] (''Bucephala clangula'')
*[[Barrow's goldeneye]] (''Bucephala islandica'')
*[[Bufflehead]] (''Bucephala albeola'')
|-
|[[File:Mergellus albellus Oulu Finland 2020-05-08.jpg|250px]]|| ''[[Mergellus]]'' {{au|Selby, 1840}}||
* [[Smew]] (''Mergellus albellus'')
|-
|[[File:Hooded Merganser pair.JPG|250px]]|| ''[[Lophodytes]]'' {{au|Reichenbach, 1853}}||
* [[Hooded merganser]] (''Lophodytes cucullatus'')
|-
|[[File:Scaly-sided Merganser RWD.jpg|250px]]|| ''[[Mergus]]'' {{au|Linnaeus, 1758}}||
* [[Red-breasted merganser]] (''Mergus serrator'')
* †[[New Zealand merganser]] (''Mergus australis'')
* [[Common merganser]] or [[goosander]] (''Mergus merganser'')
* [[Brazilian merganser]] (''Mergus octosetaceus'') 
* [[Scaly-sided merganser]] (''Mergus squamatus'')
|-
|}


Below is a phylogeny based on a mitogenomic study of the placement of the Labrador duck and the diving "goose" ''[[Chendytes]] lawi''.<ref>{{Cite journal|author1=Janet C. Buckner |author2=Ryan Ellingson |author3=David A. Gold |author4=Terry L. Jones |author5=David K. Jacobs |year=2018 |title=Mitogenomics supports an unexpected taxonomic relationship for the extinct diving duck ''Chendytes lawi'' and definitively places the extinct Labrador Duck |journal=Molecular Phylogenetics and Evolution |volume=122 |pages= 102–109|doi=10.1016/j.ympev.2017.12.008 |pmid=29247849 |url=https://digitalcommons.calpoly.edu/ssci_fac/99 }}</ref>
{{clade| style=font-size:100%; line-height:100%;
|label1=Mergini
|1={{Clade
   |1={{Clade
   |label1=
   |1={{Clade
      |1=''[[Long-tailed duck|Clangula hyemalis]]''
      |2={{Clade
         |1=''[[Harlequin duck|Histrionicus histrionicus]]''
         |2={{Clade
            |1={{Clade
            |label1=
            |1={{Clade
               |1=''[[Steller's eider|Polysticta stelleri]]''
               |2=†''[[Labrador duck|Camptorhynchus labradorius]]'' }} }}
            |2={{Clade
               |1=''[[Spectacled eider|Somateria fischeri]]''
               |2={{Clade
                  |1=''[[Common eider|Somateria mollissima]]''
                  |2=''[[King eider|Somateria spectabilis]]'' }} }} }} }} }} }}
            |2={{Clade
               |1={{Clade
               |label1=
               |1={{Clade
                  |1=''[[Common scoter|Melanitta nigra]]''
                  |2={{Clade
                     |1=''[[White-winged scoter|Melanitta deglandi]]''
                     |2=''[[Surf scoter|Melanitta perspicillata]]''}} }} }}            
               |label2=
               |2={{Clade
                  |1={{Clade
                  |label1=
                  |1={{Clade
                     |1=''[[Bufflehead|Bucephala albeola]]''
                     |2={{Clade
                        |1=''[[Common goldeneye|Bucephala clangula]]''
                        |2=''[[Barrow's goldeneye|Bucephala islandica]]''}} }} }} 
                  |2={{Clade
                  |label2=
                  |1={{Clade
                     |1=''[[Smew|Mergellus albellus]]''
                     |2={{Clade
                        |1=''[[Red-breasted merganser|Mergus serrator]]''
                        |2=''[[Hooded merganser|Lophodytes cucullatus]]''
                        |3={{Clade 
                           |1=''[[Common merganser|Mergus merganser]]''
                           |2={{Clade 
                              |1=''[[Brazilian merganser|Mergus octosetaceus]]''
                              |2=''[[Scaly-sided merganser|Mergus squamatus]]'' }} }} }} }} }} }} }} }} }}