Monarcha viduus -- White-collared Monarch. Alternate name on piece: Piezorhynchus vidua [White-backed pied flycatcher] Very finished painting; at head of sheet: "Put on stone"; "Curtis Vol 13 tab 5007"; large number 16 (probably fascicle number); at foot: "San Cristoval / Solomon Islands." Title in pencil by Sotheran, bookseller. Artist's name(s): Hart, William Matthew.