INDEX 425 



Bradoria — Continued. page 



fragilis Walcott (=AIitta fragilis (Walcott)), former and present 



generic reference 70 



sterope Walcott {^Aluta stcrope (Walcott)), former and present 



generic reference 70 



woodi Walcott (=: Aluta zvoodi (Walcott)), former and present 



generic reference 70 



Branch'mecta, specimens flattened between glass plates 169 



paludosa (O. F. Miiller), effect of pressing 168 



Branchiopoda, classification of I54 



Apodidae of, compared with Burgcssia bcUa 179 



Beltina zone, fossils related to 13 



Bidentia difficilis nearer to Merostomata than to 174 



Burgessia in 163 



Cambrian, descendants of 166 



descent of 160-161 



development discussed 163 



foreshadowed by Burgess shale fauna 165 



genera in the Cambrian I57 



of the order Anostraca 165 



relations of, to Leptostraca, Malacostraca, Trilobita, and 



Merostomata 163 



segmentation, table of 158 



subclass 148, 153, 166 



survival of 165 



mentioned ISS 



and Malacostraca, compared with Waptidse 180 



Branchipus, specimens flattened between glass plates 169 



vernalis Verrill, compared with Opabinia regalis 168 



Branner, J. C, cited on name " Saratoga " 256, 306 



breviceps, see Conocephalites. 



Bridger Range, localit}^ 151. Montana (footnote) 391 



British Columbia, Cambrian section 23 



Lower Cambrian localities 57! and gSq 242 



Lower Ordovician, Goodsir formation 231-234 



Middle Cambrian locality 35k 42-68, 1 10-144 



Mount Stephen, Middle Cambrian locality 14s 136 



occurrence of Olenopsis in 240 



Ogygopsis shale, Stephen formation, Middle Cambrian 17-38 



specimens of Beltina from 21 



Upper Cambrian locality 346e near Donald Station 368 



briso, see Dikelocephalus and Piychaspis. 



Brock, R. W., Director of Geological Survey, Canada, acknowledgments . . 204 



brocki, see Emeraldella. 



Brogger, W. C, study of Dikelocephalus by, mentioned 347 



reference of Dikelocephalus to other species by 366 



Broggeria, see Obolus. 



bronius, see Ptychoparia (Emmrichella). 



Brooks, W. K., bibliographic reference 15 



hypothesis, cited 2 



Brown, F. M., fossils collected by 371 



buchruckeri, see Shantungia. 



