Smithsonian Report, 1915. — Walcott. 



Plate 12. 



Middle Cambrian Annulata. 



1-3. Canadia sctlgera Walcott. 4-7. Canadia sjjinosaWsLlcott. 8,9. Aysheaiapedunculata Walcott. 



From locality 35k, Middle Cambrian: Burgess shale member of the Stephen formation, west 

 slope of ridge between Mount Field and \Vapta Peak, 1 mile (1.6 km.) northeast of Burgess 

 Pass, above Field, British Columbia. 



