352 E. Billings—New Species of Paleozoic Fossils, 
Art. XLVIL.—On some new Species of Paleozoic Fossils * by 
EK. Bruurnes, F.G.S. 
Genus Hyouitues Hichwald. 
In the following description of new species of Hyolithes, I 
shall call the side of the fossil which is most flattened, or from 
which there is a projection in front of the aperture, “ vy ven- 
tral side.” irectly opposite is the “dorsum.” The lateral 
® ABD 
r i : ein 3 a represen 
portion of a specimen, No Ball thoes species vary slightly im the ra 
tapering. 
, 3B 
sometimes close to the ventral side, as in fig. 2. The ~ dep ss 
is the distance between the median line of the ventral side of 
the dorsum, and is at right angles to the width. That pat” 
e ventral side which projects beyond the apertye aa 
“lower lip.” The “ventral limb” of the operculum 8 7 
i Ris in contact with the lower lip, when. the pte 
lum is in place, in the aperture. The “dorsal limb” & 
; sur- 
there is a point around Mege oe, 
* Extracted from the Canadian Naturalist of December, 1871- 
