GUI I) E 



TO THi; 



COEAL GALLEIJY 



(PROTOZOA, PORIFERA OR SPONGES, IIVDROZOA, 



AND ANTIIOZOA). 



IN 



THE DEPAETMENT OE ZOOLOGY, 



BEITISH MUSEUM (NATURAL HIST(.)RY). 



CROMWELT. ROAD, LONDON, S.W. 



WITH NUMEROUS ILLUSTRATIONS. 



SECOND EDITION. 



LONDON : 



PRINTED BY ORDER OF THE TRUSTEES OF THE 



BRITISH ^rUSEUM. 



Ii)07. 

 (.1// rifjhts ri'iiervcd.) 



