15 



174. Actaeo7i€llidae < Adaeonidae, Meek, Sill. J. 



XXXV, 84. 



* 



175. Cyliclinidae = Bullinadae, Gray, 195. 



176. Bullidae = Bullidae, Gray, 196. 



177. Amplustridae = Amplustridae, Gray, 197. 



178. Lophocereidae = Lophocercidae, Gray, 201. 



179. Aplysiidae = Aplysiadae, Gray, 198. 



B. 



180. Runcinidae = Runcinadae, Gray, 204. 



181. Tylodinidae = Tylodinadae, Gray, 203. 



182. UmDrellidae = Umbrelladae, Gray, 204. 



183. Pleiirobranchii- 



dae = Pleurobranchidae, Gray, 201. 



Order X. — NUDIBRANCHIATA. 



Sub-Order Pygobranchia. 



184. Doridopsidae = Doridopsidae, A. & H., T. Z. S. 



1864, 124. 



185. Dorididae = Dorididae, Gray, 208. 



186. Onchidorididae = Onchidoridae, Gray, 206. 



187. Goniodorididae = Goniodoridae, Gray, 211. 



188. Polyceridae < Polyceradae, Gray, 213. 



189. Triopidae > Triopidae, Gray, 214. 



190. Ceratosomidae = CeratosomidaO; Gray, 215, 



