Index. 



621 



Sphajrexochus, 371, 372, 374, 377 



parvus, 372, 382, 3'^3. 514/533. 534. 

 535, 536, 541, 542, 556 

 Sphaerocoryphe, 371. 373, 374, 377 



goodnovi, 371, 378, 533, 542 



robusta, 375, 378 



salted, 375 



major, 375, 378 

 Spliragisticus nebulosus, 194 

 Spiiifer, 82, 148 



arkonensis, I44 



audaciilus. 82, 151, 155, 164 



centronatus, 418, 423 



disjunctus, 424 



forbesi, 424 



granulosus, 82, 151, 157, 164 



grimesi, 423. 424 



keokuk, 423 



niucronatus, 82, 140, 151, 155, 156, 

 157. 163, 177 



rockymontanus, 419 



striatus, 419 



thedfordensis, 144 



tullius, 157 

 Spiriferidce, 81, 147 

 Spiriferina solidostris, 422, 423 



spinosa, 418, 419 

 Spirorbis angulatus, 150, 158 



spinuliferus, 150, 159 

 Spittle-Insects or l^rog- Hoppers, 216 

 Spring Canon, Montana, 421 

 Squamularia perplexa, 419 

 Stanton T. W., 407, 425, 426, 428 

 Stenocranus dorsalis, 215 

 Stenopodina-, 205 

 Stenopora fibrosa, 502 



patula, 533, 556 



sp., 422 

 Stenotus binotatus, 198 

 Stephania picta, 204 

 Sterculia, 427 

 Stewart, Douglas, 429 

 Stictocephala inermis, 210 



lutea, 210 

 Stictopora, 154 



glomerata, 554, 555, 556 



sp., 557 

 Stii-ellus, 223 

 Stobera tricarinata, 216 

 Straparolus, cf. siniilis, 423 

 Streblotrypa hamiltonensis, 151, 161 

 Strepbochetus, 514, 534, 544, 546 

 Strei)torhynchus, 100 



arctostriata, loi 



chemungensis, 10 1 



lens, 100 



pandora, loi 



pectenacea, loi 



Streptarhynchus, perversa, loi 

 Strcpula signioidalis, 152, 173 

 Stromatoceriuni, 504, 531, 533, 542, 543, 



546, 550. 554, 565 



rugosum, 521, 556 

 Strongylocoris stygica, 199 

 Strongylotes saliens, 201 

 Slrophalosia, 150 



truncata, 83, 122, 151, 168, 177 

 Stropheodonta, 96, 120, 14S 



arcuala, 87 



cayuta, 87 



concava, 82, 98, 151, 156, 166 



demissa, 82, 100, 151, 156, 166 



inKquestriata, 82, 87, 151, 155, 166, 

 176 



iowaensis, 155 



junia, S3, 99, 151, 166 



leblanci, 96 



nacrea, 97 



perp'ana, %t^, 91, 151, 155, 156, 

 167, 176 



profunda, 97 



variabilis, 87 

 Strophomena, 506 



aurora, 503 



incurvata, 521 

 I lepis, 97 



prisca, 513, 564 

 Strophonienidfe, 81, 82 

 Strophostylus remex, 419 

 Strynophia, 563 

 Sturnid^e, 459 

 Stylara-a parva, 503, 510, 511, 517, 531, 



550 

 Styliola, 152, 173 



Stoloid Processes of Mastodon, 464 

 Subulites prolongata, 533, 565 

 Sumstine, D. R., 4 

 Sumstine's Sundrops, 480 

 Sylviella micrura, 463 

 Sylviida, 462 

 Symplectes crocatus, 460 

 melanoxanthus, 460 

 Syringopora, 419 

 Systratiotus americanus, 196 



Tseniopora exigua, 151, 155, 161 



Talbot, Mignon, 176 



Taraxacum erythrospermum, 478 



Taxocrinus, 421 



Tchitrea perspicillata suahelica, 45S 



Telamona concava, 211 



fasciata, 211 



monticola, 211 



reclivata, 211 

 Tentaculites bellulus, 152. 155, 173 

 Teretratellida;, 82, 147 



