424 INDEX 



PAGE 

 Billingsclla coloradociisis (Shumard), association of, with Conokcphalina. 362 



listed from Eau Claire formation 358 



from Franconia formation 357 



from locality 70a 359 



from locality 78 361 



with St. Lawrence fauna 356 



billingsi, see Hungia. 



Billingsia, Mather ella saratogcnsis previously referred to 264 



saratogensis, listed from " Saratogian," Hoyt quarry 253 



hilobatiis, see Dikelocephaliis. 



bilobus, see Pterygotus. 



binodosa, see Ptychoparia. 



bipunctata, see Conaspis. 



bipunctatus, see Arionellus. 



biston, see Anomocare and AnomocarcUa. 



Blackf oot terrane, thickness of 6 



Black River-Trenton lim.estone, horizon of as indicated by Aliller 255 



Blackwelder, Eliot, collection made by, referred to 69 



Blackwelderia alastor (Walcott) (=r Dorypygella alastor Walcott), pres- 

 ent and former generic reference 71 



cilix (Walcott) {=. Olenoides ? cilix Walcott), present and former 



generic reference 71 



sinensis (Bergeron) (1= Calymene ? sinensis Bergeron), present and 



former generic reference 71 



(= Olenoides Icblanci Bergeron), present and former generic 



reference 71 



(=SfepIianocare sinensis Monke), present and former ge- 

 neric reference 72 



Blairstown, New Jersey, fauna of " Kittatinny " limestone 255 



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



text fig. 12 331 



borealis, see Winianella. 



Bohemilla stnpenda Barrande, thorax of MoUisonia, recalls 196 



Bornemann, cited on Olenopsis : 240, 241 



Bosworth formation, comparative stratigraphic sections 343 



summary, stratigraphic section 342 



Bosworth section, comparative stratigraphic section 343 



comparison of, with Robson section 342 



Kicking Horse Pass route 341 



summary, stratigraphic section 342 



boszvorthi, see Albertella. 



Bow River, Laggan, Alberta, Belt series 340 



Brachiopoda *, listed from Potsdam-Hoyt fauna 254 



Bradoria bcrgcroni Walcott {^Aluta bergeroni (Walcott)), former and 



present generic reference yo 



enyo Walcott (=Aluta enyo (Walcott)), former and present ge- 

 neric reference 70 



eris Walcott (^^z Aluta eris (Walcott)), former and present generic 



reference 70 



* Brachiopoda was used as heading by error, p. y;^, and should there be 

 omitted. 



