Sula dactylatra personata -- Masked Booby, Bobo enmascarado, Fou masqué. Alternate name on piece: Sula personata [Masked gannet] Bird well drawn; label blank. Interesting sequence: Gould's sketch at Gould item 1177, Richter's development here, and the published plate (Birds of Australia 7:77). Artist's name(s): Gould, John; Richter, Henry Constantine.