[12]

Kowalevsky, Mém. Ac. St. Petersb. (7) x. No. 3, 1866, p. 7.

[13]

Spengel, Monogr. p. 474.

[14]

Zool. Res. Pt. iii. 1899, p. 256.

[15]

See also Ritter, Biol. Bull. iii. 1902, p. 255.

[16]

Zool. Res. iii. 1899, pp. 273, 280.