106 Canadian Record of Science. 
8. ENDOCERAS PROTEIFORME, Hall.—As is usually the case, 
with nearly all the specimens collected of this species 
in the Utica, the shells are flattened and broken, show- 
ing that it was exceedingly thin and brittle. There 
are four cepta in the space of 3°5 centimetres. 
TRILOBITA AND OstTRacoDA. 
The trilobites and bivalved crustaceans mentioned in the 
list (supra) have been determined with as much accu- 
racy as the state of preservation of the specimens war- 
rants. When more specimens are obtained, and some 
more perfect ones than those before me, the relations, 
both generic and specific, may be changed, and a num- 
ber of additional species recorded from that outcrop of 
the Utica at Murray Bay. 
It may not be deemed out of place here to point out the 
entire absence of those species of fossils which characterize 
the so-called Utica shales along the south shore of the St. 
Lawrence, and on the northern side of the Island of Orleans. 
The geological horizon indicated by the fossils contained in 
this brief note is evidently that of the Utica formation. 
Nearly every species mentioned occurs in that formation at 
Ottawa and Whitby, in Ontario; so that the exposures of 
this formation at Murray Bay may be said to be the most 
easterly outcrop visible of the Utica on the north shore of 
the St. Lawrence. 
