[54]

Cf. Gare-fowl (Alcidae), infra.

[55]

P. L. Sclater, Ibis, 1888, p. 330.

[56]

Cf. Moseley, Rep. Voy. "Challenger," Zool. ii. 1880, Birds, p. 123.

[57]

Cf. Abbott, Ibis, 1860, p. 336; Sclater, op. cit. 1894, p. 501; and Eaton, Phil. Trans. clxviii. 1879, pp. 154-157.

[58]

Cf. Abbott, ut supra, and Moseley, op. cit. pp. 124, 125.