INDEX. 



307 



Page. 



M.finei 75,81 



M. grant! 75,89 



M. intermedius 75, 79 



M.(?) lanceolatus 75, 82 



M.(?) parviusculus 75, 87 



M. proavitus 75, 83,85 



M.shafferi 44,75,77 



M.(?) wilberanus 75, 84 



Mesopalseasterinae 52, 74,162 



miamiensis, Alepidaster 230, 238 



miamiensis, Anorthaster 127 



miamiensis, Palseaster 127 



miamiensis, Protaster 233 



miellensis, Agalmaster 132 



milleri, Hudsonaster 55, 60 



miltoni, Lapworthura 250, 251, 253 



mittoni, Protaster 251 



minveri, Sympterura. . : 256 



Miomaster 43,50, 74, 96 



M. drevermanni 96 



Miospondylus 262, 263 



M. rhenanus 263 



mira, Calliasterella 191 



mirabilis, Loriolaster 201 



mirus, Calliaster 190 



mitchelli, Sturtzaster (?) 254 



Monaster Gregory 49, 72 



Monaster Etheridge 40, 1 70 



M. Clarkei 171, 172 



M. giganteus 73 



M . stutchburii 73 



Monasteridae 162, 163, 1 70 



montana, Urasterella 175, 189 



montanus, Asterias 189 



montanus, Palseaster 189 



montanus, Schoenaster (?) 43, 207 



mouth angle plate, see oral armature. 



multidactylus, Echlnodiscaster 211 



multidactylus, Echinodiscus 211 



multlrayed starfishes 38, 40, 157, 207 



narrawayl, Hudsonaster 43, 50, 55, 69 



narrawayi, Protopalseaster 59 



neglecta, Palseura 223 



Neopalseaster 40, 43, 48, 49, 57, 69, 98, 134 



N. crawfordsvillensis 135, 136 



Neopalseasteridse 52,53, 184 



niagarensis, Palaeaster 68, 69 



obtusus, Ophiura 25 



obtusus, Palssaster 167 



obtusus, Protaster (Ophiura) 25 



obtusus, Stenaster (?) 165, 167 



obtusus, Uraster 167 



occurrence of starfishes 28 



ocularplate 16,34,48,134,135 



oculars in Echini 35 



ontogeny of Stelleroidea 36 



Onychaster 268 



O.asper 270,272 



O. barrisi 270, 272 



O. confragosus 270, 273 



O. demissus 270, 274 



O.flexllis 269,270 



Onychasteridse 268 



Ophiocistia 275 



Ophio-Encrinasterix .' 215 



OpJiiopege 263 



Page. 



Ophiura ciliaris 268 



O. obtusus 25 



O. (?)ramosa 22 



O . rhenana 263 



O . salteri 227 



O. schlotheimii 13 



Ophiurasterix 215,246 



Ophiurella 263 



0- primigenia 263 



Ophiurina 246, 260 



O. lymani 247 



Ophiurinidse 246 



Ophiuroidea 41, 42, 43, 2 1 2 , 258, 267 



geological distribution of 28 



number of, in Paleozoic 27, 28 



oral, see actinal. 



oral angles 16 



oral armature 16, 43, 162, 172, 210, 242 



oral skeleton, see oral armature. 



ordinaria, Schuchertia 196, 199 



ossicles, see plates. 



Palseaster 10, 



40, 41, 44, 49, 56, 66, 67 , 75, 98, 104, 135, 158 



Palseaster (Monaster) Etheridge (part) 72,170 



P. (Argaster) antiqua 86 



P. antiquata 109 



P. aniiquus 86 



P. asperrima 187 



P. caractad 92 



P. clarkana 61,63 



P. clarke i De Koninck .- 172 



P. clarkei Miller 61 



P.darki : 94 



P. coronella 167 



P. crawfordsvillensis 136 



P.dubius 85 



P.dyeri 120 



P. eucharis 98 



P.exculptus 117 



P. fin* 81 



P. (Monaster) giganteus 73 



P. grant i 89 



P. granulosus Hall 112 



P. granulosus Meek 109 



P.Mrrisi 180 



P.Mrudo 188 



P. imbricatus 169 



P. incomptus 61 



P.jamesi 146 



P. longibrachiatus 115 



P. matutinus 57 



P. miamiensis 127 



P. montanus 189 



P. niagarensis 68, 69 



P . obtusus 167 



P. parviusculus 87 



P.pukJiellus 178 



P. pygmaea. 23 



P.ruthveni 187 



P.sJiafferi - 77 



P. simplex. 61, 62 



P.speciosus 109 



P. spinulosus - ^ 



P. squamatus 2 s 



P. (Monaster) stutchburii 73 



P. wilberanus 84 



