INDEX 477 



PAGE 



Olenellus howelli Meek, in synonymy 324 



Walcott, in synonymy 320, 324 



White, in synonymy 324 



mentioned 317, 318 



Olenellus iddingsi Holm, in synonymy 343 



Walcott, in synonymy 343 



Olenellus intermedins Peach, in synonymy 331 



compared with Olenellus gilberti 332 



note on specific reference of 332 



Olenellus kjerulU Brogger, in synonymy , 288 



Holm, in synonymy 289 



Kjerulf, in synonymy 288 



Koken, in synonynjy 289 



Linnarsson, in synonymy 288 



Matthew, in synonymy 289 



Olenellus kjeruW zone, fossils- in 83 



Olenellus lapworthi Peach 331, pi. 39, figs. 1-7 ; pi. 40, part of fig. 3 



Peach, in synonymy 331 



Peach and Home, in synonymy 331 



compared with Elliptocephala asaphoides 332 



Olenellus claytoni 319, 320 



Olenellus fremonti 322, 332 



compared with Olenellus ? gigas 323 



Olenellus gilberti 329, 332 



Olenellus intermedins 332 



Olenellus lapworthi elongatits 332 



Olenellus reticulatus 332, 335, 336 



Olenellus thompsoni 331 



Pcedeumias transitans 331, 332 



geographic distribution of 253 



hypostoma of 244 



mentioned 248, 314, 342 



stratigraphic distribution tabulated 251 



Olenellus lapworthi elongatus Peach, in synonymy 331 



note on specific reference of 332 



Olenellus logani, new species 333, pi. 41, figs. 5-6 



anterior pair of glabellar furrows in 243 



compared with Callavia crosbyi 334 



Elliptocephala asaphoides 334 



Olenellus fremonti 335 



Pcedeumias transitans 334 



eyes compared with those of Olenellus canadensis 335 



mentioned 322 



segmentation of cephalon 238 



stratigraphic distribution tabulated 251 



Olenellus lundgreni Moberg, in synonymy 290 



Olenellus mickwit::;i Schmidt, in synonymy 2f)2 



