OF DENISON UNIVERSITY. 
45 
middle to well into the upper third of the Waverly. The figures on 
plate four represent specimens from a horizon forty feet below con- 
glomerate I, that on Plate X, from Cuyahoga Falls. 
NUCULANA, sp. 
(Plate IV, Fig. 12.) 
A small species known only from imperfect casts differs from all 
other Waverly species in the outline. The anterior portion is very 
short and abrubtly rounded. The hinge margin is straight and oblique 
to the axis of the shell. Posterior portion short and acute ; surface 
moderately convex. Length, 9 mm., height, 5 mm., beak about 2 
mm. from front. 
Williams quarry, Granville. Freestone. 
NUCULANA NUCUL/EFORMIS, Stevens? 
(Plate IV, Fig. 23.) 
Opportunity has not presented for careful comparison with au- 
thentic specimens of this species hence our identification is provision- 
al. Found associated with Ctenodonta houghtoni above conglomer- 
ate II at Newark. Length, 18 mm., height, 10 mm. 
NUCULANA, sp. 
(Plate IV, Fig. ii.) 
This is the characteristic species of this genus in the freestone, but 
the material is too imperfectly preserved for description. 
FLEMINGIA (?) STULT-S5. sp. n. 
(Plate VII, Fig. 10.) 
Shell small, acutely conical ; spire composed of five whorls, ob- 
liquely flattened along the dorsum to produce a plane conical spire 
with sub-carinate suture ; surface of cast unmarked. Diameter of low- 
er whorl, 10 mm., height of spire, ii mm. The body whorl is 
strongly angulate along the free side and slopes rapidly to the umbil- 
icus which with the aperture is unknown. A single specimen from 
