402 



Page. 



Spirifer eatoni 212 



Spirifer fimbriatus 215 



Spirifer granulosus 34, 47, 58, 61, 104, 210 



Spirifer granulosus, var. clintoni 211 



Spirifer macronatus 214 



Spirifer mucronatus 33, 36, 39, 40, 41, 46, 57, 58, 60, 64, 207 



Spirifer sculptilis 32, 20S 



Spi rifer subumbonus 62, 210 



Spirifer tullius 10, 21, 22, 23, 25, 208 



S] >i rifer zigzag 26 



Spirorbis angulatus 140 



Spirorbis nautiloides 34'. » 



Sporangites huronensis 15 



Stictopora incisurata 80, 33, 172 



Stictopora palmipes 174 



Stictopora permarginata 174 



S t ic topora recta 173 



Stictopora sinuosa 173 



Straparollus rudis 277 



St reblot rypa hamiltonense 107 



Streptelasma rectum 27, 41, 48, 57, 59, 60, 122 



St reptelasma ungula 122 



St repula plantaris 305 



Strepula sigmoidales 305 



Strongylocentrotus drobachiensis 346 



Strophalosia t runcata 63, 206 



Stropheodonta concava 59, 104, 195 



Stropheodonta demissa 34, 47, 103, 104, 194 



Stropheodonta inequistriata 198 



Stropheodonta j unia 199 



Stropheodonta nacrea 199 



Stropheodonta perplana 27, 196 



Stropheodonta plicata 79, 200 



Styliola recta 281 



Styliolina fissurella 9, 10, 11, 15, 19, 20, 23. 36, 64, 65, 66, 79, 84, 282 



S t y liolina spica 282 



S'.ylophora pistillata 344 



Sy ringoxy) on m irabile 12 



Tsen iopora exigua 174 



Taxocrin us nunt i us 145 



Tellinopsis subemarginata 265 



Tentaculites bel lulus 283 



Tentaculites gracilistriatus 283 



Terebratulina septentrionalis 350 



Trachypora limbata 136 



Trematospira gibbosa 221 



Trigeria lepida 235 



