Prunella atrogularis -- Black-throated Accentor. Alternate name on piece: Accentor atrogularis [Back-throated accentor] Layout drawing, birds very finished; birds in published form changed in coloration and slightly in pose; marginal sketches of plant details; 2 notes on color and form of plant; "atrogularis / 2 specimens." Artist's name(s): Gould, John; Richter, Henry Constantine.