INDEX 



Ptychoparia — Continued. page 



kochibei, compared with Saratogia 195 



( f ) Hmiarssoni Walcott, in synonymy 185 



minuta Walcott, in synonymy 193 



miniitiis Walcott, in synonymy 193 



f prospectensis Walcott, in synonymy 186 



striata (Emmrich), compared with Acrocephalites 175 



compared with Alokistocare althea and A. pomona 183 



subcoronata (Hall and Whitfield), in synonymy 187 



vulcanus (Billings) Walcott, in synonymy. 182 



sp., associated with Vanuxemella contracta 222 



(Crepicephalus) iowensis, in synonymy 208 



(Lonchocephalus) wisconsen'sis Walcott, in synonymy 199 



Rawlins, Carbon County, Wyoming, Upper Cambrian locality 340c 179 



Red Clay, Whitfield County, Georgia, Upper Cambrian locality 358f 215 



Reeds Landing, Lake Pepin, Minnesota, Upper Cambrian locality 97.... 199 

 River Junction, Houston County, Minnesota, Upper Cambrian locality 84a 167 

 Rock Falls, Dunn County, Wisconsin, Upper Cambrian locality 83a, 



163, 192, 209 



Roddy, H. Justin, acknowledgments 219, 258 



Rohrerstown, Lancaster County, Pennsylvania, Lower Cambrian locality 



I2X near .220 



Rome, Floyd County, Georgia, Upper Cambrian locality 96c near 170 



Upper Cambrian locality I38d near 172 



saffordi, see Norwoodia. 



St. Croix Falls, Polk County, Wisconsin, Upper Cambrian locaHty 82 ... . 192 



salteri, see Menocephalus. 



Saratoga Springs, New York, Upper Cambrian localities 76 and 76a near 197 



Saratogia, new genus, described 195 



compared with Crepicephalus iowensis Owen, Ptychoparia 



diademata, and P. kochibei 195 



Lonchocephalus appalachia 190 



Lonchocephalus chippewacnsis 196 



Ptychoparia , - 19S 



genotype, Conocephalites calciferus Walcott 195 



observations 195 



species listed 196 



compared 195-196 



stratigraphic range and geographic distribution 195 



arses, new species, described 196 



figured pi. 35, figs. 4, ^a-b 252 



compared with Saratogia aruno and 6". wisconsensis 196 



formation and locaHty 196 



listed 196 



aruno, new species, described 196 



figured pi. 35, figs. 5, sa-b 252 



compared with Saratogia arses 196 



Saratogia wisconsensis 196 



listed 196 



