Nova Scotian species is the same as ours. : 
. 8 ipirorbis carbonarius formerly Microconchus carbonarius abounds 1 
gee asures unit 
a - I he upper Coal-measures. It is usual] 
d slats or to shells of the Univalve 
and Modiola-like Mollusks of the Coal-measures (Naiachites Daw.). A similar 
cies is found in t ian at Gaspé and St. Jo 
Lo vol. i, 1845 . Binney referred the Britis to the 
~ soteged in 1852. In 1853 I noticed the resemblance of the Nova ange 
ne Geol. Soc., vol. x) and in my Supplement to * 
Geology, have stated my belief in their identity, (Acad. Geol., p. 147, Supl- je 
it i in that Gyromices Ammonis of the German # 
er 
is t i ; eee also, that 
lool Species as ours, and from Prof. Dawson’s specimens it is evident 
his Spirorbis carbonarius of Nova Scotia is identical with it. ‘The remarks Sie 
Sein — establi ‘a doubt the species is a shell. a 
she figure in Acadian Geology, p. 147, that shows the mouth of the oP of 
Geel, E 525), - + dngme sepicidily from Lyell’s feet a aah 
different from ours Nova Scotian and th is Farsi If 
e 
irom ours whose mouth is exactly oval, with a thick obtuse 
Lyell’s figure exact, I think still that saan represent the same species as 
