[242]

Owen, op. cit. p. 415.

[243]

T. Jeffery Parker, Trans. Zool. Soc. xi. 1879, p. 49.

[244]

Jeffery Parker, op. cit. pl. xi. Fig. 5.

[245]

Ibid. p. 58.

[246]

Ibid. p. 58.