558 INDEX 



Spokane shale — Continued. page 



evidently not seen by Rothpletz (footnote) 277 



identified 279, 280 



interpreted by Rothpletz 2';'] 



Little Belt section 273 



and T^Iarsh shale, confused by Rothpletz with Empire shale 278 



spongiosa, see Camasia. 



Squaw Island, Canandaigua Lake, New York 1 18. 120 



stator, see Agraulos. 



Steeprock Lake, Lower ? Huronian fauna of 98 



stenometopa, see Solenopleura. 



stenometopus, see Acrocephalites. 



Stenotheca clurius Walcott (^=Helcionella clurius), generic references.. 16 



elongata Walcott, listed 317, 353, 369 



rugosa (Hall) , listed 317 



rugosa chincnsis Walcott (=HcIcionclIa rugosa chinensis), generic 



references 16 



rugosa oricntalis Walcott (=^Helcioiiclla rugosa orientalis), gen- 

 eric references 16 



simplex Walcott (=Helcionella ? ? simplex), generic references. . 16 



Stephanocare Monke, distinctive in Chinese Middle Cambrian 70 



(^ Datncsella) , generic references 15 



exceptional to China 59 



t monkei Walcott, listed, Ku-shan 66 



stratigraphic and geographic position 47 



richthofeni Monke (=zDamesella chione), generic references 15 



synonymous species of Walcott 8 



listed, Ku-shan 66 



stratigraphic and geographic position 47 



.? sinensis (Bergeron) (= Blackwelderia sinensis), generic refer- 

 ences 17 



(=^Daniesella sinensis and Diccllocephalus f sinensis), gen- 

 eric references 15 



hsted, Ku-shan 66 



Shan-tung and Manchuria 70 



stratigraphic and geographic position 47 



? sp. undt., listed, Ku-shan 66 



Monke's Geology of Shan-tung 8 



stratigraphic and geographic position ■ 47 



Stephen formation, Alberta and British Columbia, Middle Cambrian locali- 

 ties 364 



Burgess shale member. Middle Cambrian locality 35k 226 



correlated, Chinese Cambrian 66 



Ogygopsis zone. Middle Cambrian locality 14s 



225, 325, 346, 347. 351 



}kliddle Cambrian locality 35k 325, 347, 408 



57J • 347 



58J 335 



58r 378 



