430 INDEX 



PAGE 



Ceratopyge Corda, genus named 233 



canadensis Walcott, new species described 233 



figured, pi. 35, figs. 13-22 236 



associated with brachiopods 230 



compared with Ceratopyge forficida Sars 233, 234 



from Goodsir formation 230, 231 



forficula Sars, compared with Ceratopyge canadensis 233, 234 



Ceratopyge shale, Sweden, at base of Ordovician 230 



Cerauriis pleurexanthemus, mentioned 190 



Cercopods of Hyinenocaris and Odaraia 159 



ceticephalus, see Agraulos. 

 ceus, see Ptychoparia. 



Chsetognatha, class named 112 



represented by Aviiskwia Ill 



Chsetopod worm, Climactichnites trails perhaps made by 261 



Chsetopoda, class named 113 



represented by six genera in 



chalcon, see Solenopleura. 



Chamberlin, T. C, and Salisbury, R. D., bibliographic reference 15 



cited on Keweenawan system 5 



cited 6, 7 



Champlain Canal, New York, Upper Cambrian locality 109 268 



Champlain Valley, Vermont, distribution of Dikcloccphalus in 365 



Chancellor formation, named by Allan 230 



Chapa (beaver) Point, specific name taken from 311 



new name 332 



Robson Peak district, illustrated, pi. 57, fig. i 338-339 



pi. 59, fig. 2 342, 343 



chapa, see Lingulella. 



Chapman, E. J., cited in discussion of Protichnites 277 



Chariocephalus, association of, with Conokephalina 362 



whitfieldi Hall, listed from Franconia formation 357 



sp., listed from Franconia formation 357 



Chateaugay, New York, Upper Cambrian locality iii 267, 268, 292 



Chetang (hawk) Cliffs, new name 332 



Robson Peak district, locality described 329 



illustrated, pi. 57, fig. i 338-339 



text fig. 12 331 



Chetang formation, comparative stratigraphic sections 343 



summary stratigraphic section 341 



Chetang limestones, in stratigraphic section 338 



new formation name 335 



chinensis, see Anomocarclla. 

 chione, see Damesella. 



Chlaia euglochis Ehlers, resemblance of Canadia spinosa to 119 



chromatica, see ObolcUa. 



