[352]

Semper, Animal Life, "Internat. Sci. Series," 1881, p. 401.

[353]

The experiments were made by Mr. Garstang at the Laboratory of the Marine Biological Association, and are recorded by Poulton in The Colours of Animals, "Internat. Sci. Series," 1890, p. 201.

[354]

Panceri, Atti Acad. Sci. Napoli, vii. 1875.

[355]

M‘Intosh, H.M.S. "Challenger" Reports, "Polychaeta," vol. xii. p. ix.

[356]

For an account of these worms see M‘Intosh, loc. cit. p. 257.