Spot-flanked gallinule

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Spot-flanked gallinule
Spot-flanked Gallinule.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Gruiformes
Family: Rallidae
Genus: Porphyriops
(Pucheran, 1845)
P. melanops
Binomial name
Porphyriops melanops
(Vieillot, 1819)
Gallinula melanops map.svg

Gallinula melanops

The spot-flanked gallinule (Porphyriops melanops) is a species of bird in the family Rallidae. It is monotypic in the genus Porphyriops. It is found in Argentina, Bolivia, Brazil, Chile, Colombia, Paraguay, Peru, and Uruguay. Its natural habitats are swamps and freshwater lakes.

The spot-flanked gallinule has a W chromosome that is larger than its Z chromosome, which is unique among bird species.[2]



  1. ^ BirdLife International (2016). "Porphyriops melanops". IUCN Red List of Threatened Species. 2016: e.T22692887A93373536. doi:10.2305/IUCN.UK.2016-3.RLTS.T22692887A93373536.en. Retrieved 12 November 2021.
  2. ^ Gunski; Kretschmer; Santos de Souza; de Oliveira Furo; Barcellos; Costa; Cioffi; de Oliveira; del Valle Garnero (2019). "Evolution of Bird Sex Chromosomes Narrated by Repetitive Sequences: Unusual W Chromosome Enlargement in Gallinula melanops (Aves: Gruiformes: Rallidae)". Cytogenetic and Genome Research. 158 (3): 152–159. doi:10.1159/000501381. S2CID 195805959.