TREATISE ON ZOOLOGY 



EDITED BY 



SiByjRAY LANKEBTER 



K.C.B., M.A. 7 , LL.D., F.R.S. 



HONORARY FELLOW OF EXETER COLLEGE, OXFORD ; CORRESPONDENT OF THE INSTITUTE 



OF FRANCE; LATELY DIRECTOR OF THE NATURAL HISTORY DEPARTMENTS 

 OF THE BRITISH MUSEUM 



PART IX 



VEKTEBKATA CKANIATA 



(FIRST FASCICLE: CYCLOSTOMES AND FISHES) 



BY 



E. S. GOODRICH, M.A., F.R.S. 



FELLOW OF MERTOX COLLEGE, AND ALDRICHIAN DEMONSTRATOR OF COMPARATIVE 

 ANATOMY IN THE UNIVERSITY OF OXFORD 



LONDON 



ADAM AND CHARLES BLACK 

 1909 



