

,<>~ 



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THE OTTAWA ItATURALIST.^ 



Vol. XX. 



OTTAWA, OCTOBER, 1906. 



No. 7 



NOTES ON CYRTOCERAS CUNEATUM.* 



By J. F. Whiteaves. 



Cyrtocetas cuneatum, A. Side view of the type and 

 only known specimen of this species, in outline only. 

 B. Smaller end of the same, also in outline. Both 

 figures are of the natural size, and in both v is the 

 venter. 



This species was based upon a single specimen from the 

 Silurian rocks at Stonewall, Manitoba, collected by Mr. D. B. 



'Communicated by permission of the Director of the Geological Survey 

 Department. 



