c ° ■ 



A P a 



TREATISE ON ZOOLOGY'**** 



, -^ EDITED BY 



}*|0^ Sir EAY LANKESTEB 



^Z^fS 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 



VEKTEBEATA CEANIATA 



(FIRST FASCICLE: CYCLOSTOMES AND FISHES) 



BY 



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



FELLOW OF MERTON COLLEGE, AND ALDRICHIAN DEMONSTRATOR OF COMPARATIVE 

 ANATOMY IN THE UNIVERSITY OF OXFORD 



LONDON 



ADAM AND CHARLES BLACK 



1909 



