292 



PEor. p. M. Duncan's eetisiok or the 



Alliance. 



Grenus 

 Echinolampas, p. 190. 



Subgenus Milletia, subgen. nov. 



p. 191. 



Phylloclypeus, p. 192. 



Conolampas, p. 192. 



Plesiolampas, p. 193. 



Subgenus Oriolampas, p. 194. 

 Palseolampas, p. 194. 

 Microlampas, p. 195. 

 Neolampas, p. 195. 



Family COLLYEITID^, p. 196. 



Grenus 

 Collyrites, p. 196. 

 Dysasler, p. 197. 

 Hyboclypus, p. 198. 

 Infraclypeus, p. 198. 

 Grasia, p. 199. 



Family 

 PLESIOSPATANGID^, p. 199. 



Genus 

 Eolampas, p. 200. 

 Archiaeia, p. 200. 

 Claviaster, p. 201. 

 Asterostoma, p. 202. 

 Pseudasterostoma, gen. nov., p. 203. 

 Metaporhinus, p. 204. 



Suborder II. Spatangoidba, 

 p. 205. 



Family ANANCHYTID^, p. 205. 



Genus 

 Ecliinocorys, p. 206. 



Subgenus Jeronia, p. 207. 

 Holaster, p. 207. 



Subgenus Lampadaster, p. 208. 

 Entomaster, p. 311. 

 Offaster, p. 208. 

 Hemipneustes, p. 209. 



Subgenus Opisopneustes (see Con- 

 cluding Note, p. 306). 

 Guettaria, p. 311. 

 Oardiaster, p. 209. 



Subgenus Infulaster, p. 210. 

 Hagenowia, gen. nov., p. 210. 



Subfamily Urechinince, p. 211. 



Genus 

 Urechinus, p. 212. 

 Cystechinus, p. 213. 

 Calymne, p. 214. 



Genera incertse sedis : 

 Enicbaster, p. 215. 

 Stenonia, p. 216, 



Family SPATANGID./E, p. 216. 



Division Adetes, p. 217. 



Genus 

 Isaster, p. 217. 

 Epiaster, p. 218. 



Subgenus Macraster, p. 219. 

 Ecbinospatagus, p. 219. 

 Ennalaster, p. 220. 

 Heterolampas, p. 221. 

 Megalaster, p. 221. 

 Hemipatagus, p. 222. 

 Platybrissus, p. 222. 

 Palffiopneustes, p. 223. 



Division Prymnadetes, p. 224. 



Genus 

 Hemiaster, pp. 225, 229. 



Subgenus Tripylus, p. 231. 

 Faorina, p. 231 . 

 Perieosmus, p. 232. 

 Lintbia, p. 233. 

 Scbizaster, p. 234. 

 Prenaster, p. 235. 

 Ornith aster, p. 236. 

 Ooraster, p. 236. 

 Agassizia, p. 237. 

 Moira, p. 238. 



Subgenus Moiropsis, p. 238. 

 Hypsopatagus, p. 239. 



Division Pryjinodesjua, p. 239. 



Genus 

 Micraster, p. 240. 



Subgenus Brissopneustes, p. 241. 

 Subgenus Plesiaster (see Conclu 

 ding Note, p. 305). 

 Brissus, p. 241. 



Subgenus Meoma, p. 243. 

 Spatangomorpha, p. 243. 

 Troschelia, p. 244. 

 Metalia, p. 245. 

 Bbiuobrissus, p. 246. 

 Brissopsis, p. 248. 



Subgenus Cyclaster, pp. 219, 250. 

 Brissopatagus, 23. 250. 

 Spatangus, p. 251. 



Subgenus Loncophorus, p. 252. 

 Maretia, p. 252. 

 Eupatagus, p. 253. 



Subgenus Macropneustes, pp. 254, 

 255. 

 Nacospatangus, p. 256. 

 Gualtieria, p. 257. 

 Linopneustes, p. 257. 

 Neopneustes, gen. nov., p. 258. 

 Cionobrissus, p. 229. 

 Ecbinocardium, p. 261. 

 Breynia, p. 262. 

 Lorenia, p. 263. 



