478 INDEX 



Bathyuriscus — Continued. page 



(Poliella) caranus, new species, described 350 



figured, pi. 46, fig. 8 415 



compared with Bathyuriscus {Poliella) anteros 351 



number of segments 349 



(^Poliella) occidentaUs (jNIatthew), described 351 



figured, pi. 46, fig. 3 414 



compared with Bathyuriscus {Poliella) anteros 349 



Bathyuriscus {Poliella) primus 352 



synonymy 351 



{Poliella) powersi, new species, described 351 



figured, pi. 46, fig. 1 414 



characterized 349, 359 



compared with Bathyuriscus haydeni 351 



Bathyuriscus howelli 344 



Bathyuriscus {Poliella) balus 350 



Bathyuriscus {Poliella) probus 354 



{Poliella) primus (Walcott), described 352 



figured, pi. 46, figs. 6, 6a-d 415 



associated with Agraulos stator 353 



• characterized 349, 359 



compared with Bathyuriscus haydeni, B. {Poliella) anteros 



and B. (P.) occidentaUs 352 



Bathyuriscus {Poliella) balus 350 



Bathyuriscus {Poliella) sp. undt. ( i ) 355 



length 331, 349 



stratigraphic range and geographic distribution 332 



{Poliella) probus, new species, described 354 



figured, pi. 65, figs. 2, 2a 452 



■■ compared with Bathyuriscus haydeni and B. {Poliella) 



powersi 354 



Coosia 354 



stratigraphic range and geographic distribution. . : 332 



{Poliella) sylla, new species, described 354 



figured, pi. 48. figs. 3. 3^-/ 4 18 



compared with Bathyuriscus {Poliella) anteros and B. 



haydeni 354 



Bathyuriscus howelli 355 



{Poliella) sp. undt. (i), described 355 



figured, pi. 46, fig. 7 415 



compared with Bathyuriscus {Poliella) primus 355 



Bathyurus and Asaphus, compared with Bathyuriscus and Asaphiscus. ... 60 



Bathyurus ? haydeni jNIeek, synonymic reference 341 



parvulus Billings, genotype of Bonnia 325 



synonymic references 328 



senectus Billings, in synonymy 319 



batis, see Bathyuriscus. 

 baton, see Dolichometopus. 



Bays Mountain, Tennessee, Upper Cambrian locality io6a 170 



Upper Cambrian locality 120 205. 215, 217, 399, 401 



