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CHIONIDAE - Sheathbills and Magellanic-plover (2:3)
CHIONINAE
CHIONIS J.R. Forster, 1788 M - Vaginalis alba J.F. Gmelin, 1789; type by subsequent monotypy (J.F. Gmelin, 1789, Systema Naturae, 1, pt. 2, p. 705).  
Chionis albus   (J.F. Gmelin, 1789) Snowy Sheathbill
vAntarctic Pen., South Shetland Is., Elephant I., South Georgia I., South Orkney Is. >> Falkland Is., Tierra del Fuego and coasts of Patagonia
Chionis minor Black-faced Sheathbill
marionensis Reichenow, 1908 vPrince Edward Is.
crozettensis (Sharpe, 1896) vIles Crozet
minor Hartlaub, 18411 vIles Kerguelen
nasicornis Reichenow, 1904 vHeard I.
PLUVIANELLINAE2
PLUVIANELLUS G.R. Gray, 1846 M - Pluvianellus socialis G.R. Gray, 1846; type by monotypy  
Pluvianellus socialis   G.R. Gray, 1846 Magellanic-plover
vS Argentina (Santa Cruz) to Tierra del Fuego >> coastal C Argentina (Chubut to S Buenos Aires)

1 Marchant & Higgins (1993) [Marchant, 1993 #2487] implicitly included nivea Mathews, 1933 [Mathews, 1933 #2528].
2 For placement here see chapter herein by Cracraft.
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