''^'^ ' [November, 1891.1 



THE 



SCIENTIFIC TRANSACTIONS 



ROYAL DUBLIN SOCIETY. 



VOLUME IV. (SERIES 11.) 



XII. 



A EEYISION OF THE BRITISH ACTINIA./ PAET II. : THE ZO ANTHER. 

 By ALEEED C. HADDON, M.A. (Cantab.), M.E.I.A., Professor of Zoology, Eoyal 

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

 LVIIL, LIX., LX. 



DUBLIN: 



PUBLISHED BY THE EOTAL DUBLIN SOCIETY. 



LONDON: WILLIAMS AND NOEGATE. 



FEINTED AT THE UNIVERSITY PRESS, BY PONSONBY AND WELDRICK, 



PRINTEES TO THE SOCIETI. 



1891. 



