Gallinula mutabilis Sundevall, Öfvers. K. Sv. Vet. Akad. Förhandl., vol. VII, No. 5, 8th. May 1850, p. 132.= Porphyrio alleni Thomson, 1842
Holotype ? : Juv., Sennar Province near Bahr-el-Abiad, Anglo-Egyptian Sudan. Autumn 1835. J. Hedenborg leg. No. 4000. - Measurements of type : wing : 153 mm.; tail : 67 mm.; culmen and frontal shield : 37,5 mm.; tarsus : 51 mm.; middle toe and claw : 67 mm.Click on the picture for enlargement.