494 INDEX 



Corynexochus — Continued. page 



minor (Walcott) , described 319 



figured, pi. 55, figs. 6, 6a-d 433 



characterized 3io, 31 1 



compared with Corynexochus delagei 318 



dimensions 311 



synonymy 318 



roemingeri Matthew, synonymic reference 324 



romingeri, compared with Corynexochus delagei 318 



senectus (Billings), described 319 



figured, pi. 55, figs. 7, ya-c ; pi. 56, figs, i, la-g 433, 434 



associated fauna, listed 321, 322 



associated with Corynexochus (Bonnia) parvulus 329 



characterized 310 



compared with Corynexochus brennus 314 



Corynexochus bubaris 314, 321 



Corynexochus capito 315 



Corynexochus (Bonnia) parvulus 320, 328 



discussed 307, 308 



horizon of 322 



listed 321, 322 



synonymy 319 



spinulosus Angelin, described 323 



figured, pi. 55, figs, i, la-b 432 



characterized 310 



compared with Corynexochus bornholmiensis 323 



Corynexochus clavatus (Walcott) 316 



Corynexochus delagei 318 



Protypus senectus (in synonymy) 315 



genotype 311 



genus founded on 312 



synonymy 323 



stephenensis (Walcott), described 334 



figured, pi. 55, figs. 5, 5"-^ 432 



characterized 311 



correction of error 324 



synonymy 324 



umbonatus, genus founded on 312 



does not belong to Corynexochus 312 



(Bonnia) busa, new species, described 326 



figured, pi. 57, fig. la ; pi. 60, figs. 3, sa-c 436, 442 



compared with Corynexochus bubaris 314, 327 



Corynexochus (Bonnia) parvulus 326, 327 



(^Bonnia) fieldensis (Walcott), described 327 



figured, pi. 57, figs. 4, 4a-b 437 



above Bathyuriscus (Poliella) primus 353 



associated fauna listed 327 



associated with Mesonacis gilberti and Olenellus canadensis 2)^7 

 compared with Corynexochus (Bonnia) parvulus (Billings) 327 



