a1. Hook of bill underneath nearly smooth or with very superficial longitudinal ridges, but with no distinct file-like surface. ... Loriidæ (p. 272) a2. Hook of bill underneath with a series of transverse ridges more or less bent along the median line and producing a file-like surface. b1. Head crested; plumage nearly all white. ... Cacatuidæ (p. 273) b2. Head without crest; plumage nearly all green, or green and blue, never white. ... Psittacidæ (p. 275) Family LORIIDÆ. "Bill much compressed, generally longer than deep, not notched, and smooth; culmen rounded and narrow; lower mandible rather long, with the gonys narrow, straight, and obliquely slanting upward, not flattened in front and with no keel-like ridge; upper mandible with no file-like surface on the under surface of the hook; tongue brushy; cere broader over the culmen and gradually becoming narrower along the sides of the bill; * * * wing acute, with the three first quills generally the longest." (Salvadori.) In the single Philippine species the forehead is "dark rosy red." Genus TRICHOGLOSSUS Vigors and Horsfield, 1826. Characters same as those given for the Family. 233. TRICHOGLOSSUS JOHNSTONIÆ Hartert. MRS. JOHNSTONE'S LORIKEET. Trichoglossus johnstoniæ Hartert, Bull. Brit. Orn. Club (1903), 14, 10; Novit. Zool. (1906), 13, 755; McGregor and Worcester, Hand-List (1906), 48; Grant, Ibis (1906), 495; Goodfellow, Avicult. Mag. (1906), 4, 83 (plate). Mindanao (Goodfellow, Waterstradt). Adult.--"Forehead dark rosy red, in the male obscured by greenish tips to the feathers; narrow loral line and broad line from the eyes backward meeting (in the female indistinctly) on the nape, dark brownish purple (not quite as dark as 'prune-purple', Ridgway's Nomenclature of Colors, pl. 8, fig. 1); rest of crown and whole upper surface grass-green, the inner webs of remiges and first primary on both webs black, all, with the exception of the first three, with a large sulphur-yellow patch in the middle of inner webs; feathers round the mandible to ear-coverts dark rose-red, those toward the ear-coverts, with yellowish-green tips; feathers of under surface dull sulphur-yellow, with gray bases and broad green tips; lower abdomen and under tail-coverts more greenish yellow, the green tips less distinct; under wing-coverts yellowish green, those near edge of wing dark green and some of the longest ones pale yellow; tail from below greenish brownish-yellow. Wing, 106 to 108; tail, 71 to 74; bill from cere to tip, [male], 14.5; [female], 12; metatarsus about 13. 'Bill yellowish red.'" (Hartert.) Known only from specimens collected on Mount Apo, Mindanao. Family CACATUIDÆ. Bill very strong; edge of upper mandible strongly sinuate; lower mandible with the lower face wide and slightly rounded; a large unfeathered space about the eye; head crested; tail moderate and square; plumage nearly all white in the single Philippine species. Subfamily CACATUINÆ.