The Utica Terrane in Canada. 235 
From Cape Santé, the following species have been 
identified from a coliection placed in the writer’s hands in 
1882 :— 
. Cyathophycus reticulatus, Walcott. 
. Orthograptus quadrimuneronater, Hall. 
. Dendrograptus sp. 
. Leptobolus insignis, Hall. 
% 8p. 
Leptxna sericea, Sowerby. ' 
. Pterinea insueta, Conrad. 
. Endoceras proteiforme, Hall. 
. Triarthrus Becki, Green. 
Om DO OD bo 
From a small collection of fossils labelled ‘‘ Grondines,” 
north side of the St. Lawrence, the following three forms 
were Observed :— 
1. Climacograptus bicornis ? Hall. 
2, Diplograptus pristis ? Hall. 
3. Leptobolus insignis, Hall. 
From a collection of fossils from St. Antoine de Tilly— 
made by Mr. Weston—in 1887, there occurs several por- 
tions of Triarthrus Becki, Green, in good state of preserva- 
tion, and from along the “ Gréve de Beauport.” L’Abbé 
Laflamme sent a slab of shaly rock to the museum of the 
Geological Survey, on which there were seen :— 
1, Climacograptus sp. 
2. Leptobolus insignis, Hall. 
3. Triarthrus Becki, Green. 
whilst on a similar slab, which from Charlesbourg, Que., 
Prof. Laflamme collected, the following forms occurred :— 
1. Orthograptus quadrimucronatus, Hall. 
2. Leptobolus insignis, Hall. 
3. Triarthrus Becki, Green. 
West of Pointe-aux-Trembles, near Quebec the Utica 
shales have not been observed to crop out from beneath the 
the overlying till, or from under the overlying Hudson 
River terrane, except in the vicinity of Montreal. Here, 
this formation, as well as most of the Cambro-Silurian or 
Ordovician strata occurring in the neighbourhood, have 
