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Ceriruium Bussacensis, n. sp. PI. V., fig. 5, 5a, 5b. 
Shell small, inflated, sub-cylindrical, volutions (seven) 
convex, having perpendicular ribs, narrow, slightly curved, 
crossed by four encircling coste, the posterior of which is 
crenulated, the others elevated, giving a rough appearance to 
the surface; there are additional coste round the base, suture 
deep, aperture nearly circular. 
Locality.—Bussage in the Great Oolite. 
CerirHium CorreswoLpiensis, n. sp. PI. V., fig. §, 8a. 
Shell small, sub-cylindrical, volutions (seven) convex, orna- 
mented with very numerous oblique ribs, which disappear on 
the anterior part of the volution; each volution has six encir- 
cling lines; suture deep; aperture ovate ; canal short. 
The large number of ribs will readily distinguish this from 
contemporaneous species. 
Locality.—Bussage, in the Great Oolite. 
PHASIANELLA CONOIDEA, n. sp. PI. V., fig. 6, 6a. 
Shell small, smooth, conical, spire acute, volutions (five) 
flattened, the last volution inflated and slightly angulated near 
the middle, aperture ovately rounded ; height four lines. 
The outline of this shell is more angular than is usual in 
this genus, by which feature and by its more rounded base it is 
distinguished from P. parvula, M. & L., to which it bears some 
resemblance. 
Locality.—Bussage, near Stroud, in the Great Oolite. 
CHEMNITZIA SPARSILINEATA, n. sp. PI. V., fig. 7. 
Shell turreted, spire regular, elevated, volutions concave, 
transversely costated, cost widely separated, longitudinally 
striated; strie faintly marked, suture deep, aperture nearly 
round. 
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pinbix.t. 45 
