Ardea intermedia Wagler, Isis (1829), 659. Mesophoyx intermedia Sharpe, Cat. Birds Brit. Mus. (1898), 26, 85; Hand-List (1899), 1, 195; Oates, Cat. Birds' Eggs (1902), 2, 115; McGregor and Worcester, Hand-List (1906), 32. Bohol (Steere Exp.); Calayan (McGregor); Mindanao (Everett); Mindoro (Bourns & Worcester); Palawan (Whitehead); Samar (Steere Exp.). Indian Peninsula, Malayan Archipelago, China, Japan. "Adult male in breeding plumage.--Pure white above and below; the head crested, but having no drooping plumes; long ornamental plumes of back immensely developed, being 430 mm. in length; feathers on the fore neck beautifully developed, 200 mm. long, the webs entirely broken up; bare part of tibia entirely black like the tarsi and toes. 'Bill black, facial skin green; iris yellow; feet and toes black.' (Oates.) Length, about 208; culmen, 74; wing, 317; tail, 137; tarsus, 114; middle toe with claw, 99. "Adult female.--Similar to the male, but the ornamental plumes not so much developed. "Adults in winter plumage.--Pure white, but losing the ornamental plumes altogether. 'Bill yellow, with blackish tip.' (Oates.) "Young.--Entirely like the adults in winter plumage; the texture of the plumage soft and downy, and devoid of ornamental plumes." (Sharpe.) "Comparatively rare and very shy. Fairly abundant about the Laguna de Naujan in Mindoro." (Bourns and Worcester MS.) Genus HERODIAS Boie, 1822. Of very large size and plumage entirely pure white. 138. HERODIAS TIMORIENSIS (Lesson). TIMOR WHITE EGRET. Ardea timoriensis Lesson, Traité d'Orn. (1831), 575. Herodias timoriensis Sharpe, Cat. Birds Brit. Mus. (1898), 26, 98; Hand-List (1899), 1, 195; Mearns, Proc. Biol. Soc. Wash. (1905), 18, 89; McGregor and Worcester, Hand-List (1906), 33. Luzon (McGregor); Mindanao (Mearns). Northern China and Japan to Australia. Adult male in breeding plumage.--"Entirely pure white; a bunch of elongated plumes on the back scarcely reaching beyond the tail. 'Bill beautiful orange; naked space before and behind the eye fine greenish yellow; legs above the knee pale dull yellow, this color continued down the center of the inner part of the tarsi; remainder of tarsi and feet black.' (Gould.) Length, 762; culmen, 112; wing, 381; tail, 160; tarsus, 132 to 162." (Sharpe.) The following data are from the Luzon specimen which I have recorded: Killed on the Laguna de Bay, Luzon, March 16, 1906. Sexed by the taxidermist as a male. Entire legs and feet black; bill yellow. Dorsal plumes reaching little beyond base of tail, the bird being in rather poor plumage. Tarsus, 159; bill from gape, 140; culmen from frontal feathers, 114. This species is the largest as well as the rarest of the pure white herons known from the Philippine Islands. Genus EGRETTA Forster, 1817.