434 INDEX 



Conokcphalina — Continued. page 

 vesta (Walcott) {^Pty chop aria vesta Walcott), present and for- 

 mer generic reference 72 



zvhitehallensis Walcott, new species described 269 



figured, pi. 44, figs. 9-1 1, iia 294 



compared with Conokcphalina oniata Brogger 269 



spelling now changed to Conokcphalina 387 



listed from Potsdam-Hoyt fauna 254 



sp. undt. (Walcott) (=:Ptychoparia sp. undt. Walcott), present and 



former generic reference 72 



constricta, see Banffia and Ptychoparia. 



Contents, " Abrupt Appearance of Cambrian Fauna " i 



" Cambrian faunas of China " 69 



" Cambrian formations, Robson Peak district " 327 



" Cambro-Ordovician boundary " 229 



" Dikelocephahis and other Genera " 345 



" Middle Cambrian Annelids " 109 



" Middle Cambrian Branchiopoda, Malacostraca, Trilobita, and 



Merostomata " 145 



" Middle Cambrian Holothurians and Medusse " 41 



" Middle Cambrian Merostomata " 17 



" New York Potsdam-Hoyt fauna " 251 



" New Lower Cambrian subf auna " 309 



contigna, see Anomocarella. 



Continental Divide, Alberta, Algonkian locality 14Z 40 



Robson Peak district, illustrated, pi. 58, fig. i 340-341 



convexa, see Anomocare. 

 convexus, see Crepicephalus. 



Coosia Walcott, new genus described 94 



■ genotype, Coosia superba 94 



f bianos (Walcott), compared with Coosia superba 96 



(= Anomocare bianos Walcott), present and former generic 



reference 70 



carme (Walcott), compared with Coosia superba 96 



{^=^ Anomocarella carme Walcott), present and former ge- 

 neric reference 70 



? daimus (Walcott), compared with Coosia superba 96 



(=-Anomocare daunus Walcott), present and former generic 



reference 70 



decelus (Walcott), compared with Coosia superba 96 



{■= Anomocare decelus Walcott), present and former generic 



reference 70 



( f ) limbata (Angelin), compared with Anomocare lisani 91 



discussed 96 



{^i Anomocare limbatum Angelin), present and former ge- 

 neric reference 70 



robusta Walcott, new species described 97 



figured, pi. 16, figs. 2, 2a 106 



compared with Coosia superba 96, 97 



listed, Cambrian faunas of China 73 



new species from Alabama 72 



