ILLUSTRATIONS TO THE SECOND VOLUME, vii 



FIG. PAGE 



113. Otolites of magnified Thaumantias . . . .93 



114. Development of Medusa-buds . . . . .95 



115. Khizostoma . . . . . . .98 



116. Cydippe pileus and Beroe Forskalia . . . .102 



117. Praya diphyes . ^ to face 103 



118. Graleolaria lutea . . [/pj^iA* frontispiece 



119. Apolemia contorta . j to face 108 



120. Physophora hydrostatica J , . . . ,,109 



121. The Physalia ... ... 112 



122. Velella spirans ( F<??AO . . . . . .115 



123. Alcyonian polypes, highly magnified ' . . . . 120 



124. Polype of Alcyonidium elegans . . . 120 



125. Spicula of Alcyonium digitatum . . . . .121 



126. Eed coral branch . . . . . .126 



127. Red coral greatly magnified . . 127 



128. Tubipora musica . . . . . . .130 



129. Actinian polype ....... 131 



130. Lobophylla angulosa . . . . .135 

 131 Nervous system of Leech ..... 151 



132. FootofNa'is . .152 



133. Terebella conchilega . . 154 



134. Pushing poles of Serpula ..... 155 



135. Foot of aPolynoe . . . . .160 



136. Brachionus pala . . . . . . .163 



137. Common Kotifer . . . . . . .167 



138. Section of shell of Echinus . . .177 



139. Sucker-plate of Sea-Egg . . . .179 



140. Section of a sucker-plate . .179 



141. Spine of Echinus miliaris . . .181 



142. Pluteus of the Echinus .... .181 



143. Larvae of Echinus in various stages of development . .182 



144. Skeleton of Synapta . . .185 



145. Wheel-like plates of Chirodata violacea . . . .186 



146. Ear of Crab .... . 191 



147. Section of a Crab . . . . . .193 



148. Young of Carcinus mcenas in various stages of development . 195 



149. Lucifer, a stomapod crustacean ..... 200 



150. Female Cyclops ....... 205 



151. Cypris . . . . . . . .207 



152. Section of Daphnia pulex . . . 208 



153. Balanus culcatus . . . . . .213 



154. Tentacles or feet of the Balanus . . .214 



* From Voght's ' Syphonophores de la Mer cle Nice. 



