IXDEX 



^athyuriscus — Continued. page 



atossa, new species, described 336 



figured, pi. 48, figs. 2, 2a-b 418 



compared with Bathyttrisctis anax 335, 336 



Bathyuriscus batis 338 



Bathyuriscus belus 339 



Bathyuriscus rotundatus 336 



Bathyuriscus sp. undt. (i) 348 



length 331 



hantius, new species, described 336 



figured, pi. 49, figs. 2, 2a-c 420 



approaches Dolichometopus bessus ^32 



associated fauna, listed 337 



compared with Bathyuriscus haydeni 336 



Dolichometopus ? bessus 362 



batis, new species, described 337 



figured, pi. 48, figs. 4, 4a 419 



associated with Mesonacis gilberti 332, 338 



compared with Bathyuriscus haydeni and B. atossa 338 



Protypus hitchcocki (Whitfield), Dorypyge, and Bathy- 

 uriscus primus 338 



belesis, new species, described 338 



figured, pi. 50, figs, i, la-i 422 



associated fauna, listed 339 



compared with Dolichometopus productus, Bathyuriscus 



haydeni, Bathyuriscus belus, and B. anax 338 



stratigraphic range and geographic distribution 332 



belus, new species, described 339 



figured, pi. 50, figs. 2, 2a-d 422 



associated species 34° 



compared with Bathyuriscus anax, B. atossa, and B. 



belesis 339 



stratigraphic range and geographic distribution 332 



? bixhus, new species, described 340 



figured, pi. 47, figs. 4, 4a 417 



compared with Dolichometopus tontoensis 340 



haydeni (Meek), described 341 



figured, pi. 46, figs. 2, 2a-b 4I4 



characterized 33^> 333 



compared with Bathyuriscus bantius 336 



Bathyuriscus batis 338 



Bathyurisctis howelli • 344 



Bathyuriscus ornatus 342 



Bathyuriscus (Poliella) anteros 349 



Bathyuriscus (Poliella) pozversi 351 



Bathyuriscus (Poliella) primus 352 



Bathyuriscus (Poliella) probus 354 



Bathyuriscus (Poliella) sylla 354 



Zacanthoides spinosus Walcott 333 



