Cinclodes oustaleti baeckstroemii Lönnberg, Nat. Hist. of Juan Fernandez andEaster Island , vol. III, Upsala 1920, p. 4.= Cinclodes oustaleti baeckstroemii Lönnberg, 1921
Holotype ? : Male ad., Masafuera, Juan Fernandez Islands. 12. II. 1917. K. Bäckström leg. No. 285. - Measurements of type : wing : 91 mm.; tail : 71 mm.; culmen : 17 mm.; tarsus : 23 mm.Click on the picture for enlargement.