[30] Yarrell, ‘British Fishes,’ vol. ii. p. 11.

[31] According to the observations of M. Gerbe; see Günther’s ‘Record of Zoolog. Literature,’ 1865, p. 194.

[32] Cuvier, ‘Règne Animal,’ vol. ii. 1829, p. 242.

[33] See Mr. Warington’s most interesting description of the habits of the Gasterosteus leiurus, in ‘Annals and Mag. of Nat. Hist.’ November, 1855.

[34] Prof. Wyman, in ‘Proc. Boston Soc. of Nat. Hist.’ Sept. 15, 1857. Also W. Turner, in ‘Journal of Anatomy and Phys.’ Nov. 1, 1866, p. 78. Dr. Günther has likewise described other cases.

[35] Yarrell, ‘Hist. of British Fishes,’ vol. ii. 1836, p. 329, 338.

[36] Dr. Günther, since publishing an account of this species in ‘The Fishes of Zanzibar,’ by Col. Playfair, 1866, p. 137, has re-examined the specimens, and has given me the above information.

[37] The Rev. C. Kingsley, in ‘Nature,’ May, 1870, p. 40.

[38] Bell, ‘History of British Reptiles,’ 2nd edit. 1849, p. 156-159.

[39] Bell, ibid. p. 146, 151.