Forpus xanthopterygius olallae Gyldenstolpe, Vet. Akad. Handl., 22, No. 3, 1945, p. 55.= Forpus xanthopterygius crassirostris Taczanowski, 1883
Holotype ? : Male, Lago de Canacary, E. do Amazonas, R. Amazon, Brazil. 3 Jan. 1936. A. M. Olalla. - Measurements of type : wing : 78,2 mm.Click on the picture for enlargement.