Merula kelleri Mearns, Proc. Biol. Soc. Wash. (1905), 18, 6;
McGregor and Worcester, Hand-List (1906), 83.
Pó-lo, Bagobo of Mount Apo.
Mindanao (Mearns, Goodfellow).
Adult.--This species is almost exactly like P. thomassoni in colors,
but is considerably smaller in size. A male collected by Mearns
measures: Length, 246; wing, 110; tail, 94; culmen from base, 21;
bill from nostril, 13; tarsus, 31.
A female, wing, 110; tail, 89; culmen from base, 20; bill from nostril,
12; tarsus, 30.