[347]

Bridge and Haddon, op. cit. p. 234, Pl. II. Fig. 18.

[348]

Ibid. p. 216.

[349]

Weber, De aure et auditu Hominis et Animalium, Leipzig, 1820, p. 73.

[350]

Moreau, Compt. Rend. lxxx. 1875, p. 1247.

[351]

Coggi, Mitth. Zool. Stat. Neapel, vii. 1887, p. 381; Swale Vincent and Stanley Barnes, Journ. Anat. and Phys. xxx. 1896, p. 545.