OF DENISON UNIVERSITY 
47 
Spirifer? hirtus, M. andw? 
(Plate III, Fig. 2. ) 
A single dorsal valve may represent this species. A similar form 
from the Cuyahoga shale has been referred by collectors to S. setigera, 
H. The existence of such an Athyris-like form is of interest even though 
some doubt must prevail as to the specific relations. To the student 
of evolution the series beginning with the Devonian and including S. 
jimbriata^ S. proematiira, S. pseiLdolineatiis, S. setigera^ S. lineata, etc. 
should be interesting. 
Cyrtina, sp. 
(Plate VIII, Fig. 18.) 
A small species is known from a ventral valve found in calcareous 
nodules at the base of the Licking Co. section at Moot’s run, four and 
one-half miles west of Granville Height 4 mm ; width 5 mm ; con- 
vexity 2 mm ; beak slightly incurved ; sinus narrow, rather deep : 
about seven plicae on either side. Our form is less elevated than C. 
acutirostris, Shumard, resembling S. hamiltonensis, but with a nar- 
rower sinus. 
Spiriferina solidirostris, White. 
(Plate II, Figs. 9-1 1 ; Plate V, Fig. 13. ) 
This pretty little shell is common in a layer of free-stone several 
feet above congl. II, at Newark. All specimens so far collected are 
very small and are characterized by the high incurved beak of the 
ventral valve and the regular concentric striae, which in well preserved 
specimens cross the few plications. The dorsal valve is rather flat, 
with a small beak and 7-9 rather large folds separated by deep, but 
not wide grooves. The median fold is flattened or even channeled 
above. 
Spiriferina depressa, sp. n. (?) 
(Plate TO, Fig. 3.) 
Shell of large size, valves nearly equally convex, transverse, the 
hinge-line equal to the greatest width. 
Ventral valve wider than high, rnoderately convex, beak incurved. 
