PAGE 



Coulouma, " Montague Noire," Herault, France, Middle Cambrian local- 

 ity I52d 319 



Cub Creek, Tennessee, Upper Cambrian locality 119 397, 399, 401 



Cystid plates, listed 350 



Dalman, cited on Asaphns palpebrosus 405 



Danish Flat, Idaho, Middle Cambrian locality 55c 341, 351, 2,62, 408 



Dearborn River section, IMontana, Middle Cambrian locality 3j 362 



Lower ? Cambrian localities 4V and 4q 339 



Lower ? Cambrian localities 4 w and 8j 340 



Deecke, Dr., acknowledgments ' 366 



delagei, see Corynexochus. 



deois, see Dolichometopus. 



derceto, see Dolichometopus. 



Dicellocephalus ? quadriceps Hall and Whitfield (Walcott), synonymic 



reference 36S 



Dikelocephalus cf. D. minnesotensis Owen, listed 409 



dirce, see Dolichometopus. 



Discinella sp., listed 322 



Dolichometopinse, subfamily named 330 



characterized 309 



typical genera, Bathyuriscus and Doliclwtiictoptts 309 



Dolichometoptis Angelin, genus described 355 



Asiatic species 359 



Bathyuriscus as a subgenus of (sj^nonymy ) 330 



characterized 309, 357 



compared with Bathyuriscus ;i;i^, 358, 362 



Bathyuriscus (synonymy) 372 



Corynexochus 309, 311 



Housia 374 



distinguished from Bathyuriscus 357 



genotype, Dolichometopus suecicus Angelin 357 



Greek derivation, synonymy 355 



guide fossil for uppermost Middle Cambrian, Sweden 358 



identical with Bathyuriscus 358 



may have developed from Corynexochus 308 



observations 357 



related to Bathyuriscus 333 



* species characterized 356 



listed 359 



referred elsewhere 359 



stratigraphic range and geographic distribution 357 



synonymy 35 :; 



acadicus Matthew, described 360 



figured, pi. 53, figs. I, la-c 428 



compared with Anomocare 360 



Bathyuriscus asiaticus 358 



synonymy 360 



Dolichometopus suecicus 36c 



