INDEX 483 



Paradoxides — Continued. page 



macro cephalus Barrande, in synonymy 269, Zi7 



Emmons, in synonymy 269, 336 



olandicus, mentioned 287, 290 



pusillus, anterior pair of glabellar furrows in 243, 233 



spinosus, anterior pair of glabellar furrows in 243, 2>33 



mentioned 299 



tessini, mentioned 287 



thompsoni Barrande, in synonymy 337 



Billings, in synonymy 305. 337 



Emmons, in synonymy 337 



verniontana Barrande, in synonymy 265 



Billings, in synonymy 265 



Emmons, in synonymy 265 



walcotti Shaler and Foerste, in synonymy 341 



Paradoxides (Gen. ?) kjeriM Matthew, in synonymy 289 



Paradoxinae, Beecher on the 314 



Emmons, in synonymy 311 



Ford, in synonymy 286 



distinguished from the Mesonacidaj 250 



mentioned 236 



transition from Mesonacidas 253 



Parietal band, defined 157 



Parkers quarry, fossils from 339, 341 



parva, see Dalmanella and Orthis (Dalmamila). 



parvus, see Dicellomus and Obelus. 



Paterina, see Micromitra (Paterina). 



Paterinidse, classification of 142 



defined 143 



diagram showing line of descent 140 



distribution in Cambrian strata 140 



number of genera referred to the family 141 



Peach, B. N., acknowledgments 235 



bibliographic reference 376 



on Olcnelloides 347 



on the telson of Olencllits 313 



mentioned 342 



Peach, B. N., and Home, J., bibliographic reference 2i7^ 



Peachella, new genus 342 



delimitation of genus 248 



development of, shown in diagram 249 



development of thorax 245 



mentioned 236 



new genus, species referred to the genus listed 232 



stratigraphic distribution tabulated 251 



Peachella iddingsi (Walcott) 343, pi. 40, figs. 17-19 



associated fossils listed 345 



