[NOVEMBEE, 1891.] 



THE 



SCIENTIFIC TRANSACTIONS 



OF THE 



ROYAL DUBLIN SOCIETY. 



VOLUME IV. (SERIES II.) 



XII. 



A REVISION OF THE BRITISH ACTINIA. PART II. : THE ZOANTHE^. 

 By ALFRED C. HADDON, M.A. (Cantab.), M.R.I. A., Professor of Zoology, Royal 

 College of Science, Dublin ; and MISS ALICE M. SHAOKLETON, B.A. Plates 

 LVIII., LIX., LX. 



DUBLIN: 

 PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 



LONDON: WILLIAMS AND NORGATE. 

 PRINTED AT THE UNIVEESITY PRESS, BY PONSONBY AND "WELDRICK, 



PEINTEES TO THE SOCIKTT. 



1891. 



Price Three Shillings and Sixpence. 



