Myrmotherula ambigua Zimmer, 1932a: 5

LECROY, MARY & SLOSS, RICHARD, 2000, Type Specimens Of Birds In The American Museum Of Natural History. Part 3. Passeriformes: Eurylaimidae, Dendrocolaptidae, Furnariidae, Formicariidae, Conopophagidae, And Rhinocryptidae, Bulletin of the American Museum of Natural History 2000 (257), pp. 1-88 : 43-44

Myrmotherula ambigua Zimmer, 1932a: 5 (Playa del Río

Base, Mt. Duida, Venezuela, altitude 550 feet). Now Myrmotherula ambigua Zimmer, 1932 . See Sibley and Monroe, 1990: 384, and Ridgely and Tudor, 1994:

268.

HOLOTYPE: AMNH 273547 , adult male, collected at Playa del Río Base Camp , ca. 03°25′N, 65°40′W, 550 ft, Cerro Duida, Amazonas, Venezuela, on 29 November 1928, by the Olalla brothers on the Tyler Duida Expedition.