For recent experiments on this case, see a forthcoming paper by J. E. Duerden (P.Z.S.).
Saville Kent, "Great Barrier Reef," London, 1893, p. 145.
O. Carlgren, Biolog. Centralbl. xxi. 1901, p. 480.
Saville Kent, "The Great Barrier Reef," 1893, p. 144.
A. C. Haddon, Trans. Roy. Dubl. Soc. iv. 1889, p. 325.