The Devonian System in Canada. — Whiteaves. 229 
Schuchert, published in 1889, in the eighth annual report of 
the geologist of the state of New York, contains the names of 
seventv-six species from Cayuga. Most of the Ontario ma- 
terial from which this list was made was probably obtained 
from Mr. De Cew. But Mr. Schuchert, who made additional 
collections of the fossils of the Ontario Oriskany for the United 
States National museum in 1895, says', in a recent letter to the 
writer, that he then saw how easy it is to mix Oriskany and 
Corniferous fossils while collecting, and believes that the col- 
lections made by Mr. De Cew are mixed. Mr. Schuchert 
thinks that near Cayuga there is a transition zone between the 
Oriskany and true Corniferous, and that many of the fossils 
recorded in the "Geology of Canada" as from the Oriskany 
may be from this zone. Further, he is of the opinion that it is 
only the uppermost portion of the Oriskany that is represented 
near Cayuga. 
The fossils of the Corniferous formation or Upper Helder- 
berg group of Ontario have been determined or described, 
either separately or together with those of the Hamilton for- 
mation, by E. Billings and professor H. A. Nicholson, in Ca- 
nadian publications ranging from 1857 to 1885. Inciden- 
tally they have been described or enumerated by James Hall 
in the thirty-fifth regent's report of the New York State cabi- 
net of natural history, and in volumes four to eight of the 
palaeontology of that state; also by Dr. Carl Rominger in his 
"Fossil Corals" of Michigan. 
Tabulating the information obtainable from these and other 
sources, and omitting names that have long been known to be 
synonyms, the number of species of fossils that have been re- 
corded from this formation in Ontario would seem to be 258, 
as follows : 
Corals (inclusive of Stromatoporoids) 100 
Vermes i 
Polyzoa (=Bryozoa) 40 
Brachiopoda 60 
Pelecypoda (=Lamellibranchiata) 10 
Gasteropoda 17 
Cephalopoda 8 
Ostracoda i 
Trilobita 17 
Fishes 4 
258 
