[262]

[See, however, Calman, Natural Science, xiii. 1898, p. 43.]

[263]

Zeitschr. wiss. Zool. xxii. 1872, p. 455.

[264]

Arch. Zool. Exp. sér. 2, i. 1883, p. 131.

[265]

Zeitschr. wiss. Zool. xliv. 1886, p. 273.

[266]

Ibid. liii. 1892, p. 1.