Barfurth, Arch. Entwickmech. I. 1895, p. 117.

[39]

The Horn Scientific Expedition, 1897, p. 155.

[40]

Amer. Natural. xxix. 1895, p. 998.

[41]

J. Morphol. xi. 1895, p. 375.

[42]

P. Z. S. 1895, p. 401.

[43]