INDEX 



The references in heavy-faced type refer to the locality numbers and the 

 pages upon which the genera and species are described and figured. 



PAGE 



Abrigo limestone, Upper Cambrian locality 358c 213 



Acrocephalites Wallerius, genus described I74 



compared with Alokistocare 183 



Alokistocare ? labrosum 185 



Alokistocare, Inouyia, and Ctenocephalus exsulans 



Linnarsson 176 



Ptychoparia striata (Emmrich) 175 



comparison of genera 176 



of species I74-I75, 176-177 



formerly would have been included with Ptychoparia 177 



genotype, Solenopleura ? stenometopa Angelin 174 



geographic distribution 17S 



observations I75 



stratigraphic range I7S 



Swedish diagnosis i74 



americanus, new species, described I77 



figured pi. 24, figs. 2, 2a-h, 3, za-h 230 



compared with Acrocephalites ? majus 180 



Acrocephalites aoris 178 



Acrocephalites insignis and A. stenometopus 177 



Acrocephalites multisegmentus 180 



Acrocephalites tutus 181 



Alokistocare althea and A. pomona 183 



discussed I75 



formation and locality 178 



segments I77 



aoris, new species, described 178 



figured pi. 26, figs. 3, 3a-b 234 



compared with Acrocephalites tutus and A. americanus 178 



formation and locality 178 



stratigraphic range 17S 



f aster, new species, described 178 



figured pi. 26, figs. 9, ga-c 334 



compared with Acrocephalites stenometopus 177, 178, 181 



formation and locality 178 



stratigraphic range 175 



t glomeratus, new species, described 179 



figured pi. 26, figs. 7, 7a 234 



compared with Acrocephalites ? majus, A. haynesi, and Pty- 

 choparia 179 



formation and locality 179 



stratigraphic range 175 



