20 
VICTOBIA MEMORIAL MUSEUM. BULLETIN NO. I 
Mr. James MeEvoy had previously, in 1898, collected a few 
invertebrate fossils from the same limestone beds, to which he 
assigned a Devonian age, relying on the determinations of 
Dr. J. F. Whiteaves 1 . 
The invertebrate fossils from Bullrush mountain near the 
waterfall are also, according to Dr. Raymond, indicative of an 
upper Devonian rather than a Carboniferous horizon. 
For the fish tooth from Roche Miette the specific name 
subtuberatus is here proposed, the term having reference to the 
very small and inconspicuous swelling observed on either side 
of the central prominence of the crown 
The second specimen to which reference has been made 
consists of a portion of a fish tooth labelled “Fall, north side of 
Athabaska river, RruI4 lake, D. B. Dowling, 1911.” The position 
of this locality has already been explained. The specimen is 
preserved in a piece of limestone similar to that of Roche Miette, 
and also holding numerous remains of crinoid rings in a like 
state of preservation. 
This specimen (Plate II, fig. 4) is incomplete and formed part 
of a pavement tooth. The portion preserved is flat and four- 
sided with two rounded angles, one of the sides being the irregular 
line of fracture; it measures 9 mm. in length and breadth, with 
a maximum thickness where broken of less than 1 mm. The 
upper surface is smooth and polished, and, as in the Roche 
Miette tooth, minute punetse or pores are present and similarly 
disposed. At the unbroken end the bony base projects beyond 
the margin of the upper polished surface as shown in the figure. 
Traquair has shown that in the Cochliodont sharks there is 
a great variation, in both shape and size in individual teeth in 
a connected series, according to location. It is probable, 
therefore, that the tooth from the eastern slope of Bullrush 
mountain may belong to the same species as the one represented 
by the Roche Miette specimen. 
1 See Mr. MeEvoy’s “Report on the Geology and Natural Resources of the 
country traversed bj the Yellow Head Pass route," Annual Report, Geological 
Survey, Canada, Vol. XI. p. 29 D. 
