PLATE XXV. 



PAGE 



Fig. 165. Mytilus pauperculus. Magnified. 183 



Pig. 167. Modiola cylindrica. Natural' size. 185 



Pig. 168. Lithophagus ovifokmis. Magnified. 185 



Pig. 172. Avicula pbllucida. Natural size. 186 



Pig. 173. Inoceramus Piochii. Large valve. Natural size. 187 



Pig. 174. Id. Small valve. Natural size. 187 



Fig. 175. Pinna Brewerii. Natural size. 188 



175, a. Section. 



Pig. 176. Trigonia Tryoniana. Natural size. 188 



Fig. 177. T. Evansii. Natural size. 189 



Fig. 178. T. Gibboniana, ? Young. Natural size. 190 



Fig. 179. Meekia sella. Natural size. 191 



Pig. 179, a. M. radiata. Natural size. 192 



Pig. 180. M. navis. Natural size. 192 



Fig. 181. Arca Breweriana. Magnified. 193 



Fig. 182. CucuLLiEA trtjncata. Natural size. 196 



Fig. 183. AxiNiEA Veatchii. Natural size. 197 



Fig. 183, a. End view. 



