IXDEX 



PAGE 



Xisusia, associated with Coryitc.vochus (Bonnia) parz'uliis 329 



festinata (Billings), listed 317. 322 



(Jamesella) loid Walcott. listed 322 



Nolichuckj' shale, Tennessee, Upper Cambrian localities 119, 123b 



beneath 392 



zone, Tennessee, Upper Cambrian locality 107U 399 



North Granville, New York, Lower Cambrian localitj' 38a 317 



North Greenwich, New York. Lower Cambrian locality' 33 317 



Nunkoweap Valley, Grand Canj-on, Arizona, Middle Cambrian locality 



74 374, 424 



Obolella, associated with Coryncxochus (Bonnia) parvuhis 329 



chromatica Billings, listed 321 



crassa (Hall), listed 322 



Obolus mcconnelli pclias (Walcott), listed 403 



parvus Walcott, listed 353 



prindlci (Walcott) , listed -. . . 316 



rotundatus (Walcott) . listed 403 



millisi (Walcott) , listed 337 



zctus (Walcott) , listed 373 



( M^estonia) chuarensis (Walcott) . listed ^yz, 374 



{Westonia) clla (Hall and Whitfield), listed 337, 339, 409 



(JVestonia) cuglyphus (Walcott), listed 373 



occidentalis, see Bathyiirisciis (Policlla). 



Ogygia klotzi Rominger. synonymic reference 377 



parabola Hall and Whitfield. synon3-mic reference • 369 



producta Hall and Whitfield, compared w^ith Bathyiiriscus 332 



synonymic reference 369 



(Ogygopsis) klotci ^Matthew, synonymic reference 377 



Ogygiocarin?e Raymond, subfamily described 375 



genera included, named 375 



synonymy 375 



Ogygiocaris Angelin. compared with Ogygopsis 376 



compared with Orria ' 380 



under Ogygiocarinae 375 



buchii (Brongniart), compared with Ogygopsis 376 



Ordovician form of Ogygopsis 377 



suggested by Orria 380 



dilitata (Brunn), compared with Ogygopsis 376 



Ogygopsis Walcott, genus described . . : 375 



compared with Ogygiocaris Angelin 376 



Orria 376, 380 



genotype. Ogygia klotzi Rominger 376 



observations 376 



relation to Orria 380 



stratigraphic range and geographic distribution 376 



synonymy 375 



under Ogygiocarinae 375 



