(Thraupidae; Ϯ Fire-bellied Mountain Tanager A. igniventris) Gr. ανισος anisos  unequal  < negative prefix αν- an- ; ισος isos  equal; γναθος gnathos  lower jaw; Reichenbach's 1850, plate LXXVII, labelled Passerinae: Fringillinae Tanagrinae, shows the toothed upper mandible, shortened lower mandible, and stubby, somewhat bullfinch-like bill of these mountain tanagers. "Anisognathus Reichenbach, June 1, 1850, Av. Syst. Nat., pl. 77. Type, by subsequent designation (Bonaparte, 1851, Rev. Mag. Zoll.[sic] [Paris], ser. 2, 3, p. 172, Tanagra igniventris d'Orbigny and Lafresnaye." (Storer in Peters 1970, XIII, 331).
Synon. Compsocoma, Poecilothraupis.

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2018). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2018). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 13 December 2018).