On the general structure, anatomy, and metamorphoses, cf. L. Powell, Tr. N. Zeal. Inst. ii. 1878, p. 269; Emery, Atti Ace. Lincei, iii. 1879, p. 390; Lütken, Vid. Meddel. 1881, p. 190, and Overs. Vid. Selsk. Skr. 1882, Suppl. p. 21; Collett, Forh. Vid. Selsk. Christ. 1883, No. 16; T. J. Parker, Tr. Z. S. xii. 1886, p. 5; Smitt, Bih. Fören. Förh. i. 1889, p. 17; A. Meek, Stud. Mus. Univ. Coll. Dundee, i. 1890, No. vi.; F. Mazza, Int. Monatschr. Anat. xviii. 1901, p. 129.

[757]

Cf. A. Agassiz, Amer. Journ. Sci. (3), iii. 1872, p. 154; J. M. Jones, Nature, xix. 1879, p. 363; Vaillant, C. R. Soc. Biol. (8), iv. 1887, p. 732.

[758]

Ann. Sci. Nat. Zool. (3), xiv. 1850, p. 105, and C. R. Ac. Sci. lxxiv. 1872, p. 1527.

[759]

Proc. Zool. Soc. 1902, ii. p. 284.

[760]

Cf. Pellegrin, Poissons Vénéneux (Paris, 1900, 8vo), which contains a very full résumé of what is known of the toxic properties of the various Plectognaths.

[761]