INDEX 417 



Amiskwia — Continued. page 



sagittiforniis Walcott, new species described : . 112 



figured, pi. 22, figs. 3, 4 142 



dimensions 113 



stratigraphic position and association 152 



Amiskwidae Walcott, new family described 112 



Amphinomidas, compared with Canadidse Walcott 118 



Amphion ?? sp. undt., listed from locality 201a 359 



Amphoton Lorenz (^^ Dolichometopus Angelin), former and present ge- 

 neric reference 70 



steinmanni Lorenz (=z Dolichonictopus dcois Walcott), former and 



present generic reference 70 



anipla, see Lingulella. 



Ampullaria, ancestors of 166 



Analysis, chemical, of slate 150 



anatina, see Conaspis. 



anatinus, see Conocephalites. 



atigustifrons, see Lisania. 



anncctans, see Agraulos and Ptychoparia. 



Annelida, listed from Potsdam-Hoyt fauna 254 



Annelids, discussed under introduction to "Middle Cambrian Annelids", no 



Annulata, sub-kingdom named 112 



Anomalocaris Whiteaves 154, 180 



abdominal segments of 159 



canadensis Whiteaves, associated with Mollisonia symmetrica 197 



compared with Anomalocaris gigantea 180 



gigantea Walcott, new species described 180 



figured, pi. 34, fig. 3 228 



compared with Anom,alocaris canadensis Whiteaves 180 



stratigraphic position and association 153 



Anomocare Angelin, genus discussed 87 



compared with Anomocarclla 91 



Calvinella 388 



Calvinella spiniger 391 



Dikclocephaliis ? dalyi compared with T,6y 



intermediate between Dikelocephalns and 368 



genotype, Anomocare Iceve Angelin 87 



in synonymy 87 



probable species of, bracketed as Pteroccphalus by Hall and 



Whitfield 366 



angelini Gronwall, placed by Lorenz under Conaspis (footnote)... 357 

 bergioni Walcott {^=Anoinocarella bergioni (Walcott)), former 



and present generic reference 70 



bianos Walcott (= Coosia ? bianos (Walcott)), former and present 



generic reference 70 



bigsbyi Walcott (= Anomocarclla bigsbyi (Walcott)), former and 



present generic reference 70 



biston Walcott (^= Anomocarclla biston (Walcott)), former and 



present generic reference 70 



? butes Walcott {^= Anomocarclla biites (Walcott)), former and 



present generic reference 70 



