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SPIRIF ER oblatus, 
TAB. CCLXVIII. 
Sp. Cuar. Gibbose, transversely obovate, smooth, 
with an obtuse rather square elevation along 
the middle ; beaks approximated. 
A. little wider than long, very smooth, and rounded in 
all its parts, the ridge that extends from the front to the 
beak and its corresponding concavity, are flattened in the 
middle. The flat part of the back is very small as well 
as the triangular foramen contained init. The internal 
spiral appendages form two obtuse and irregular cones. 
I have this species from the Mountain Limestone of 
Derbyshire, and Westmoreland, it seems to diifer from 
the next only in not being quite so wide, and in being 
generally blunter in its contour. The largest figure is 
from a specimen given me by Mr. Farey, it is from Axton 
Quarry, S. W. of Llanasa in Flintshire. 
SPIRIFER glaber. 
TAB. CCLXIX.—2 Upper Figs. 
Syn. Conch: Anomites glaber, Martin Peir. 
Derb : t. 28, fig. 9 and 10. 
Nearry twice as wide as long, edge generally sharp, 
in other respects exactly resembling the last. 
This was sent me some years ago from Derbyshire, by 
Mr. Martin, the lesser figure is from an Irish specimen. 
