a2. Under tail-coverts moderate, their tips reaching little if any beyond toes; size generally larger; length, 360 mm. or more ... Muscadivorinæ (p. 42)
a1. General color green or greenish yellow; rectrices fourteen, under coverts usually equal to or longer than shortest rectrix; third primary deeply scooped near middle of inner web.
b1. Horny nail of bill reaching feathers of forehead ... Treron (p. 25) b2. Horny nail of bill not reaching feathers of forehead.
c1. Tail slightly graduated; under tail-coverts broadly streaked, the shafts black ... Sphenocercus (p. 26) c2. Tail square; under tail-coverts not streaked, the shafts of the same color as the webs ... Osmotreron (p. 26)
a2. General color brown; rectrices twelve, under coverts shorter than shortest rectrix; third primary not scooped ... Phapitreron (p. 29)
This genus differs from the other green pigeons in having the horny portion of culmen extending back to frontal feathers; a small naked area around eye; pattern and colors of the plumage very similar to those of Osmotreron axillaris.
Toria nipalensis Hodgson, As. Research (1836), 19, 164, pl. 9. Treron nipalensis Salvadori, Cat. Birds Brit. Mus. (1893), 21, 34; Sharpe, Hand-List (1899), 1, 53; Oates, Cat. Birds' Eggs (1901), 1, 82; McGregor and Worcester, Hand-List (1906), 9. Treron nasica Steere, List Birds and Mams. Steere Exp. (1890), 24.
Mindoro (Steere Exp., Bourns & Worcester); Palawan (Steere, Everett, Whitehead, Platen, Steere Exp., Bourns & Worcester, Celestino, White). Nepal to Burma, Malay Peninsula, Siam, Cochin China, Tenasserim, Borneo.
Adult male.--Crown ashy, forehead lighter; face and neck dark gray, the latter followed by a narrow line of ashy gray; mantle, including lesser wing-coverts, dark chestnut; lower back, rump, and tail-coverts dark green; under parts yellowish green, breast more yellowish; thighs and flanks darker and greener, mixed with white; under tail-coverts cinnamon; wings black; median and greater wing-coverts and secondaries edged with yellow; some of the inner secondaries tipped with green; tail above, ashy gray with a black band some distance from the tip, but the median rectrices green and the next two partly green. "Legs and feet vary from lake-pink to coral-red; orbital skin pea-green; the irides vary from bright orange to yellowish red, with an inner, deep-blue ring more or less apparent; gape and base of upper mandible to nostril bright red; rest of bill pale yellowish, or greenish white, tipped with greenish." (Hume.) Two males from Palawan measure: Length, 250, 260; wing, 132, 136; tail, 89, 87; culmen from base, 20, 21; tarsus, 19.8, 20.