310 



INDEX. 



Page. 



simplex, Eoactis 186 



simplex, Palxaster 61, 62 



simplex, Palasophiura 235 



simplex, Xenaster 69 



skeleton, secondary, see accessory plates. 



sladenl, Echinasterella 200 



smythl, Petraster 139,147 



Solaster x . . 38 



solida, Palaeostella 156 



sollasi, Lapworthura 251 



Spaniaster 39, 43, 47, 49, 50, 74, 95 



S. latiscutatus 96 



spedosa, Palxasterina 142 



speciosus Palxaster 109 



speciosus, Petraster 47,139,142 



speciosus, Promopalaeastcr 104,105,109,113 



spines, see paxillae and pedicellarlsB. 



spinosa, Palxocoma 219 



spinosissima, Asterias 19 



spinosity 37, 41 



spinosus, Echlnasterias 211 



spinosus, Taeniaster 216,217,218, 219 



spinulosus, Palxaster 115 



spinnlosus, Promopateaster 44,104,105,115 



spryi, Gregoriura 234 



Squamaster 248, 249 



S. echinatus 249 



squamatus, Palaeaster 23 



stalk of primitive starfishes 83, 34 



starfish, most primitive 31, 33 



origin of graspers 33 



origin of wriggling type 32 



radicle 34 



stellata, Palasterina 196 



stellata, Schuchertia 195, 1 96 



stellata, Trentonaster 196 



Stelleroidea 61 



geological development 27, 28 



geological distribution 28 



ontogeny 36 



phylemhryo 34 



typembryo 86, 36 



stellifer, Protaster(?) 226,228 



Stenaster (part) 173 



Stenaster 31,41,42,43,50,68,163,168,212 



S. (?) confluens 165, 167 



S. (?) coronella 165, 167 



S. grandis ISO 



S. huileyi 182 



S. (?) obtusm 165, 167 



S. pulchcllus 178 



S. salteri 164, 165 



Stenasteracea 163 



StenasteridiB 162, 168 



stone-canal, seo madreporite. 



Strep tophiurae 215, 249 



Stiirtzaster 248, 252 



S. colvini 253 



S. cygnipes 253 



8. marstonl 253 



8. (?) mitchelll 254 



Sturtzura 235, 286 



8. brisingoides 236 



8. leptosoma 236, 237 



8. leptosomoides 236, 237 



stutchburii, Australaster (?) 73 



stutchburii, Monaster 73 



stutchburii, Palxaster (Monaster) 73 



supramarginalia 16, 34,35, 46 



Symptenu-a 248, 256 



S. minveri 256 



syngnaths 218, 222, 224, 242, 256, 267 



Taeniaster 216,218 



T. australis 236 



T. cylindricus 216, 217, 218, 219, 220 



T. elegans 219, 221 



T. meafordensls 221 



T. schohariae 219, 220 



T. spinosus 216,217, 218, 219 



Txniasteridx 172 



Txniura 216 



T.cylindrica 220 



tenuiradiatus, Coelaster 19 



terminals, see ocular plates. 



terminology of Asteroidea 13 



Tetraster 31,41,42, 43,50, 164, 165, 167, 212 



T. asperrimus 187 



T. (?) imbricatus 168, 169 



T. sp. Ind. Nicholson and Etheridge 186 



T.wyville-thomsoni (part) 65 



T. wyville-thomsoni ' 168 



tischbeinianum, Aspidosoma 244 



tischbeinianus, Encrinaster 244 



torus 16,43,54,174 



traquaiii, Echinostella 212 



Tremataster 246, 247 



T. (?) decheni 247, 248 



T. difflcilis 247 



Trentonaster 195 



T. stellata 196 



Trichotaster plumiformis 26, 38 



Trimeraster 44,45,60, 128, 134 



T. parvulus 134 



trlvium 14 



Trochitaster, see Trichotaster. 



typembryo of Stelleroidea 85, 36 



ulrichi, UrastereUa 37,43,45,49, 175, 183 



Uranaster 61, 138, 154 



U.ellzffi 165 



U.klnahani 154,165 



Uraster hirudo 188 



U. obtusus: 167 



U. primxvus 153 



U. ruthveni 187 



UrastereUa Stiirtz 163 



UrastereUa McCoy 40, 



41,42,45,47,49,50,69,164,173,194,212 



U. (7) asperrima 175,187 



U. asperula 175,188 



U. (?) constellata 175, 187 



U. girvanensis 167, 175, 186 



U. grandis 174, 175, 180 



U. hirudo 175,188 



U . huxleyl 175, 182 



U. montana 175, 189 



U. n. sp 189 



U.pulchella 175,178 



U. ruthveni 174, 175, 187 



U. selwyni 175, 188 



U.ulrlchl 37,43,46.49,175,183 



