Leucippus taczanowskii -- Spot-throated Hummingbird. Alternate name on piece: Agyrtria taczanowskii. Birds only: very finished work; in roughly drawn oval as though it was intended for framing. Red crayon corrections to figures; notes, difficult to decipher, in Gould's late hand, regarding name, authority, and origin (Sclater, 1879, ProcZS, West coast of Peru). Artist's name(s): Gould, John; Hart, William Matthew.