GEOLOGICAL SURVEY OF OAKAD A. 



CONTRIBUTIONS TO CANADIAN PALEONTOLOGY. 



VOLUME I. 



EY J. F. WHITE AA'BS. 



5. The Fossils of the Devonian Rocks of the Mackenzie River Basin. 



In 1887, 1888 and 1889 large and important collections of fossils were 

 made by Mr. E. G. McConnell from the Devonian I'ocks exposed along 

 the Hay, Mackenzie and Peace Rivers. A detailed report upon the 

 species contained in these collections was wiitten, and the five j)lates 

 required to illustrate it were printed off, in the fall of 1890. Before the 

 manuscript of this report was sent to the printer, however, the receipt 

 of an additional collection of fossils, made hj Mr. McConnell in 1890 

 from the Devonian rocks of the Athabasca and Pembina Rivers, in- 

 duced the writer to enlarge its scope so as to include tlierein a con- 

 sideration of all tlie specimens now in the Museum of the Survey from 

 the Devonian rocks of the Mackenzie River Basin. The whole of the 

 specimens referred to in these pages were collected by members of the 

 Staff of the Survey between the years 1875 and 1890, both inclusive, 

 and some of the collections made prior to 1885 have been provisionally 

 reported upon by the writer, in the Reports of Progress of the Survey 

 for the years in which they were made. In the study and comparison 

 of many of the species represented in these collections, and especially 

 in ascertaining the internal structure of the corals and the minute pecu- 

 liarities of the polyzoa, the writer has been ably assisted by Mr. L. M. 

 Lambe. 



SPONGIJ^:. 



AsTiivEospoNGiA Hamiltonensis, Meek and Worthen. 

 Plate 28, figs. 1, la. 



Astricospongia Hamiltontnsis, Meek and Worthen. 1866. Proc. Chicago Ac Sc, 



vol. I, p. 12. 

 Astrxospongia Hamiltonensis . Meek and Worthen. 1868. Geol. Surv., Illinois, vol. 



Ill, p. 419, pi. 10, flg. 6. 



Hay Eiver, forty miles above its mouth, E. G. McConnell, 1887 : the 



May, 1891. 



