APR 16 1901 
ARTICLE I. 
NEW SPECIES OF CAMBRIAN FOSSILS FROM CAPE 
BRETON. 
By G. F. Matthew, LL. D., F. R. S.C. 
(Read October 2 , 11)00.) 
While engaged in the study of the Cambrian formation of Cape 
Breton, and in collecting fossils from this terrane in the summer of 
1899, the writer met with some new species; these are of interest to 
the biologist as showing mutations of forms described from other areas, 
or as carrying previously known genera to lower horizons. 
The Director of the Canadian Geological Survey, Dr. G M. Daw- 
son, C. M. G., has kindly allowed the writer to publish these species in 
advance of a report on the work in Cape Breton. 
The lower and middle zones of the Cambrian in Cape Breton are 
comparatively barren of fossils, and the species herein described are 
chiefly from the upper zones. They consist of Brachiopods of the 
orders Atremata and Protremata, with some few Trilobites. Other 
fossils were collected, but as they are of species already described, 
they are not included in this article. 
Though the fossils herein described are referred to the three several 
zones of Parabolina, Peltura and Dictyonema, all in the Bretonian 
Division of the Cambrian, there is some uncertainty as to the refer- 
ences of the species Lingula lens , n. sp., to the Parabolina Zone. The 
exposures are very limited where this fossil occurs, and its position is 
fixed by the occurrence of a Peltura limestone band a little way above 
it. The fossil occurs in beds which are strongly ripple-marked, filled 
with worm burrows, and bear other marks of shallow-water deposition- 
Further observations, however, may show that these ripple-marked 
beds are within the Peltura Zone. 
The band above, of the Peltura Zone (3 b), containing the three 
species of trilobites herein described, does not accord closely in its 
species with the strata of the same zone as known at St. John, but 
