guideC o. 



TO THE 





COEAL GALLBEY 



I 



(PROTOZOA, PORIFERA OR SPONGES, HYDROZOA, 



AND ANTHOZOA), 



IM 



THE DEPAETMENT OF ZOOLOGY 



BRITISH MUSEUM (NATURAL HISTORY), 



CROMWELL ROAD, LONDON, S.W. 



WITH NUMEROUS ILLUSTRATIONS. 



SECOND EDITION. 



oil LONDON: 



CTuo^'^INTED BY ORDER OF THE TRUSTEES OF 



]_J[}'l THE BRITISH MUSEUM. 



1907. 



