Note 10 — ERRATA.

Length 16 inches, expanse 33½, tail 7¾, flexure 11¼, rictus 2½, breadth of beak at base measured within 2²⁄₁₀, tarsus ³⁄₁₀, middle toe 1³⁄₁₀.

Irides hazel, orange-coloured, or brilliant straw-yellow; feet whitish, scurfy; beak black. Interior of mouth violet, passing into flesh-colour. Plumage mottled with black, brown, grey, and white; the white prevailing on the tertiaries, tertiary-coverts, and scapulars, the black upon the primaries and their coverts; the tail-feathers barred transversely with black on a grey ground, which is so mottled as to bear a striking resemblance to the soft pencilling of many Sphingidæ; tail broad, very slightly rounded. The feathers of the head lax, and fur-like. Inner surface of the wings black, spotted with white. A streak of black runs on each side the throat, nearly parallel with and close to the gape; a bay tint prevails on the breast; and some of the feathers there have broad terminal spots of black, which are arranged in somewhat of a crescent-form, having irregular spots above it. Under parts pale grey unmottled. Every feather of the whole plumage is marked with a black stripe down the centre. Tongue sagittiform, wide at the horns, slender towards the tip, fleshy; reverted barbs along the edges. The volume of brain excessively small. Intestine 10½ inches; two cæca 1½ in. long, dilated at the ends.