TREATISE ON ZOOLOGY 



K.C.B., M.A., 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 



VERTEBRATA CEANIATA 



(FIRST FASCICLE: CYCLOSTOMES AND FISHES) 



BY 



E. S. GOODKICH, M.A., F.E.S. 



FELLOW OF MERTON COLLEGE, AND ALDRICHIAN DEMONSTRATOR OF COMPARATIVE 

 ANATOMY IN THE UNIVERSITY OF OXFORD 



LONDON 



ADAM AND CHAELES BLACK 

 1909 



