INDEX. 



311 



Urasterollacea 163 



UrastereUidas 162, 163, 172 



ventral, see actinal. 



ventral shield 213 



vermiformis, Bdellacoma 254 



vermtformis, Palxocoma 254 



vertebral ossicles 18, 213,257,267,269 



wachsmuthi, Schoenaster (?) 205 



whiteavesianus, Trotaster (?) 226, 22 7 



wilberanus, Mesopalscaster (?) 75, 84 



wilberanus, Palxaster 84 



wilberianus, Pctraster 84 



wilsoni, Palxaster (?) 106 



wilsoni, Promopaljcaster 104, 106 



woodwaidi, Eucladia 276,277 



wrigglers 82 , 33, 38 



wykoffi, PalxasUr 119 



wykofli, Promopalasaster 42,104,119 



wyvillc-thomsoni, TdrasteT 65 



wy^-ille-thomsoni, Tetraster 168 



Xcnaster 40,44,45,46,47,49,50,08,128, 129 



X. dispar 130,181 



X. elegans 130, 181 



X. eucharis 98 



X. margaritatus Follmann 131 



X. margarUatus Simonovitsch (part) 131, 132 



X. margaritatus Simonovitsch 129, 130, 181 



X. (?) rhenanus 130,181 



X. simplex 96 



Xenastcridaj 52,53, 128 



zitteli, Palxospondylus 262 



zlttell, Palastropecten 262 



o 



