Dicæum hypoleucum Sharpe, Nature (1876), 24, 298; Cat. Birds
Brit. Mus. (1885), 10, 37; McGregor and Worcester, Hand-List
(1906), 97.
Basilan (Steere, Everett, Steere Exp., Bourns & Worcester,
McGregor); Bongao (Everett); Siasi (Everett); Sulu (Guillemard).
Male.--Upper parts, including sides of head and of neck deep black;
under parts white; wing-lining and axillars white. A male from Basilan
measures: Wing, 53; tail, 24; culmen from base, 13; bill from nostril,
9; tarsus, 13.
Female.--Above mouse-gray faintly washed with olive-green except
on tail-coverts where the green is heavier; secondaries and greater
coverts edged with olive-green; under parts white. Wing, 50; tail,
24; culmen from base, 13; bill from nostril, 9; tarsus, 13.
"Found by us in the deep woods. Stated by Guillemard to frequent
coconut groves. Three males average: Length, 89; wing, 53; tail, 27;
tarsus, 12; middle toe with claw, 12.7. Iris reddish brown; bill,
legs, feet, and nails black." (Bourns and Worcester MS.)