IGG BULLETIN OF THE 



Fig. 160. Ophiotrochits 2^ctnnicid us a.vm.-}omts ; f. 



Pig. 161. Ophioceramis ? clausa, below: f. 



Fig. 162. " " above ; h 



Fig. 163. " " arm -joints ; }. 



Fig. 164. " ? ohstricta, below ; }. 



Fig. 165. " " above ; \. 



Fig. 166. " " arm-joints ; \. 



Fig. 167. Ophiomastiis tcgulUius, below ; \-. 



Fig. 168. " " above ; Y- 



Fig. 169. " " disk and ai-m in profile ; -i]^. 



Fig. 170. Ophiemus vallincola, below; f. 



Fig. 171. " " above ; f. 



Fig. 172. " " arm-joints ; \. 



PLATE VII. 



Fig. 173. Ophiopyren brevispinus, below; f. 



Fig. 174. " " above ; Y- 



Fig. 175. " " arm-joints ; Y. 



Fig. 176. " longispinus, below ; ^. 



Fig. 177. " " above ; ^. 



Fig. 178. " " arm-joints; -^i^. 



Fig. 179. Ophiophijllum iKtilum, below; ^. 



Fig. 180. " " above ; ^. 



Fig. 181. " " arm -joints; f 



Fig. 182. Ophiochiton fastigatus, below; f. 



Fig. 183. " " above ; ^. 



Fig. 184. Ophioscolex dcntatiis, below ; ^. 



Fig. 185. " " above ; %. 



Fig. 186. " " arm-joints; $. 



Fig. 187. Ophiogcron edcntulus, below ; f. 



Fig. 188. " " above ; f 



Fig. 189. " " one spine ; ^. 



Fig. 190. Ophioscolex tropicus, below ; f. 



Fig. 191. " " above ; f 



Fig. 192. V " " arm-joints ; f. 



Fig. 193. Ophinsci'xsnia attcnuntum, below ; ^. 



Fig. 194. " ' " above ; f 



Fig. 19.'>. " " arm-joints; 



Fig. 196. Ophiolehcs scorteus, below : ^. 



Fig. 197. " " above ; \. 



PLATE VI I L 



Fig. 198. Ophiobyrsa rudis, below ; J. 



Fig. 199. " " above ; J. 



Fig. 200. " " arm-joints; }. 



