Adult male.--Back, wings, rump, tail, and tail-coverts dark brown with a slight olive tinge; head, neck, throat, and breast bright chestnut; posterior half of breast, abdomen, flanks, under tail-coverts, under wing-coverts and axillars black with wide white cross-bars, most conspicuous on the breast; thighs brown with but little white; primaries and secondaries blackish with wide white bars on inner webs. "Bill blackish, the base tinged light green, tip grayish; legs dull greenish leaden; feet dark lead-gray; nails gray; iris brilliant red." (Everett.) Length of a male from Basilan, 254; wing, 128; tail, 65; exposed culmen, 23; tarsus, 46; middle toe with claw, 37. Adult female.--Differs little if any from the male. A specimen from Cagayancillo had upper mandible black; lower mandible pea-green, tip bluish; legs very dark green; nails dark brown. Length, 215; wing, 128; tail, 69; exposed culmen, 23; tarsus, 40; middle toe with claw, 35. "So far as our observation goes R. eurizonoides is a woods form, all of our specimens having been killed in deep forest. Eyes orange-red; legs and feet dark olive; upper mandible nearly black; lower olive-green." (Bourns and Worcester MS.) Genus PORZANA Vieillot, 1816. Smallest of the Philippine rails; bill slender; middle toe with claw longer than tarsus. Species. a1. Upper surface freckled with white. ... auricularis (p. 71) a2. Upper surface uniform. ... plumbea (p. 72) 62. PORZANA AURICULARIS Reichenbach. PALLAS'S CRAKE. Porzana auricularis Reichenbach, Jour. für Orn. (1898), 139; Sharpe, Hand-List (1899), 1, 102; Oates, Cat. Birds' Eggs (1901), 1, 118. Porzana pusilla (not of Pallas) Sharpe, Cat. Birds Brit. Mus. (1894), 23, 106; McGregor and Worcester, Hand-List (1906), 16. Luzon (Heriot). Eastern Siberia, Japan, China, Burmah, India, Ceylon, Borneo.