SYNAPTA VIVIPARA 



A CONTRIBUTION TO THE MORPHOLOGY OF ECHINODERMS 



A DISSERTATION 



V 



ACCEPTED FOK THE DEGREE OF DOCTOR OF PHILOSOPHY BY THE BOARD OF 

 UNIVERSITY STUDIES OF THE JOHNS HOPKINS UNIVERSITY 



1897 



BY HUBERT LYMAN CLARK 



(Reprinted from Volume V, No. 2, of the Memoirs of the Boston Society of Natural History, 



and Volume IV of the Memoirs from the Biological Laboratory of 



the Johns Hopkins ITnietrrity) 



BALTIMORE 

 1898 



