ADDITIONS AND ERE AT A. 



Page 8, 5 lines from bottom of the page 5 in accordance with the language employed 

 by Mr. William K. Parker, in his work on the ' Shoulder Girdle,' 

 pp. 145, 209, 210, which was not in my hands when the first pages of 

 this part of this book were printed off, for "There are two lateral 

 episternal," read "There are two lateral omosternal ;" and at 3 lines 

 from bottom of page, /or " there is no central episternum," read "The 

 praesternum does not develope a pro-osteon, as in Helamys and Coelo- 

 genys." 



Page 9, II lines from bottom of the page, add reference to Mr. Parker's work, "A 

 Monograph on the Structure and Development of the Shoulder-Girdle 

 and Sternum in the Vertebrata," by W. K. Parker, F.R.S., F.Z.S., 

 London, published for the Eay Society by Robert Hardwicke, 192 

 PiccadiUy, 1868. 



Page 13, II lines from bottom of the page, add reference to Mr. Darwin's work, 

 which, like Mr. Parker's, was not in my hands when these pages were 

 struck off, " The Variations ot Animals and Plants under Domesti- 

 cation," vol. i., pp. 115-130, Osteological Characters of Rabbits. 



Page 29, 15 lines from top of page, add reference to Professor Huxley's Paper 

 " On the Alectoromorphae," Proceedings of the Zoological Society, 

 May 14, 1868, p. 294. 



Page 33, 16 lines fi-om bottom of the page, for "The Ophidia differ," read "The 

 Ophidia and the apodal Sauria differ." See V. Carus, Handbuch der 

 Zoologie, i. B'*. p. 372. 



Page 138, note c, 7 lines from top of the page, dele " Gephyrei ;" — and 2 lines from 

 bottom of page, erase words " Glycera and Phoronis Jnppocrejna," and 

 substitute " Opheliae and Cirratulidae." See Claparfede, Ann^Jides 

 Ch^topodes du Golfe du Naples, p. 19, 1868. 



Page 147, note e,for "an Echinus," read "an Echinoid." 



Page 149, line i, for "with the masticatory apparatus," read "with the radial 

 elements of the masticatory apparatus." 



Page 152, note f, 32 lines from top of the page, after words "of the ' nettle-cells,' " 

 add words, " See, however, p. cxliv supra, ibique citata." 



Page 153, 4 lines from the bottom of the page, for " to the majority of Vermes," read 

 " to many Vermes, such as Apliroditea, Glycerea, and Polycirrida." See 

 Claparede I. c. supra, and Ann. and Mag. Nat. Hist., 1867, vol. xx. 

 p. 348. 



Page 177, 8 lines from bottom of page, for "This latter branch is not," read "This 

 latter branch, by which the blood from the posterior limbs can find its 

 way directly back to the heart, is not." 



