CORRIGENDA. 



p. 23, line 5. For " and that in " read " and in." 



p. 27, line 29. For " appear" read " appears." 



p. 37, line 18. For " their " read " the." 



p. 54. Note 2. For "xxvm" read "xx." 



p. 55. Parra is now known not to have affinities with the Ballidas. 



p. 141. In description of Fig. 15 insert "After Solgek." 



p. 151, line 2 and p. 153, Note. For "W. B." read "G. B." 



p. 198. For " Pinnipediae " read "Pinnipedia." For "Dent." read "Deut." 



p. 212. In description of Fig. 40 delete " p 1 of the left side is in symmetry with 

 two teeth on the right side." The figure is correct. 



p. 281, 15th line from bottom. Delete " and perhaps all." 



p. 382. For "W. H. Benhani" read "W. B. Benham." 



p. 429. For " Banyul's " read " Banyuls." 



p. 473, 4th and 6th lines from bottom. For " Tornaria" read " Balanoglossus." 



p. 526. Delete the heading " (1), Clear cases of Extra Parts in Secondary 

 Symmetry." 



Note to p. 461, Note 718. As to union of eyes in Bees, see further, Dittrich, 

 Zeit. f. Ent., Breslau, 1891, xvi. p. 21, and Cook, A. J., Proc. Amer. Ass., 1891, 

 p. 327. 



Note to p. 468, Note 2. In connexion with Giard's observation the following 

 fact should be given. Since this Chapter was printed I have had an opportunity of 

 examining a sample of Flounders taken in the shallow water off Bournemouth. Of 

 23 specimens seen alive, all but about half a dozen were more or less blotched with 

 shades of brown on the " blind " side. In five the brown was more extensive than 

 the white. The eyes and dorsal fins were normal. The fishmonger who shewed 

 them to me said that the Flounders in that place were generally thus blotched, and 

 that those seen were a fair sample. In estimating the significance of Cunningham's 

 experiment (p. 467) this fact should be remembered. 



