[409] ‘Principles of Biology,’ vol. ii. 1867, chaps. ii.-xi.
[410] De l’Espèce et de la Class.’ &c., 1869, p. 106.
[411] See, for instance, the account which I have given in my ‘Journal of Researches,’ 1845, p. 7.
[412] I have given (‘Geolog. Observations on Volcanic Islands,’ 1844, p. 53) a curious instance of the influence of light on the colours of a frondescent incrustation, deposited by the surf on the coast-rocks of Ascension, and formed by the solution of triturated sea-shells.
[413] ‘Facts and Arguments for Darwin,’ English translat. 1869, p. 20. See the previous discussion on the olfactory threads. Sars has described a somewhat analogous case (as quoted in ‘Nature,’ 1870, p. 455) in a Norwegian crustacean, the Pontoporeia affinis.
[414] See Sir J. Lubbock in ‘Annals. and Mag. of Nat. Hist.’ vol. xi. 1853, pl. i. and x.; and vol. xii. (1853) pl. vii. See also Lubbock in 'Transact. Ent. Soc.’ vol. iv. new series, 1856-1858, p. 8. With respect to the zigzagged antennæ mentioned below, see Fritz Müller, ‘Facts and Arguments for Darwin’ 1869, p. 40, foot-note.
[415] See a paper by Mr. C. Spence Bate, with figures, in ‘Proc. Zoolog. Soc.’ 1868, p. 363; and on the nomenclature of the genus, ibid. p. 585. I am greatly indebted to Mr. Spence Bate for nearly all the above statements with respect to the chelæ of the higher crustaceans.
[416] ‘Hist. Nat. des Crust.’ tom. ii. 1837, p. 50.
[417] Fritz Müller, ‘Facts and Arguments for Darwin,’ 1869, p. 25-28.
[418] ‘Travels in the Interior of Brazil,’ 1846, p. 111. I have given, in my ‘Journal of Researches,’ p. 463, an account of the habits of the Birgos.