Pseudotharrhaleus unicolor Hartert, Bull. Brit. Orn. Club (1904),
14, 74; McGregor and Worcester, Hand-List (1906), 80; Grant, Ibis
(1906), 479.
Mindanao (Goodfellow).
"Female.--Of exactly the same structure as P. caudatus Grant, from
Luzon, but the tail much shorter, the upper side deeper rufous-brown,
the whole under side rufous-brown with an olive tinge, only the upper
throat lighter and somewhat tinged with buff. Wing, 92.5 [62.5?];
tail, 75; culmen from forehead, 16; metatarsus, 26." (Hartert.)