FROM THE TERTIARY OF VIRGINIA. 257 
A. scunptus, Pu. 36. Fic. 59. 
A. testd ovato-acuminatd, crass, sub-perforatd, cancellatd; spird brevi, conted, mamillatd, ad apicem levi; suturis profundis; 
anfractibus quinque, converis, ad sutwram superiorem sub-canaliculatis; striis transversis, crebris, magnis; sulcis longitudi- 
nalibus, parvis, prope suturam infertorem obsoletis; anfractu ultimo rotundato; basi striata; perforatione minima; apertura 
ovata, effusd; plicd columellari obliqud, obtusd. 
Shell ovate-acuminate, thick, sub-perforate, cancellate; spire short, conical, mamillate, smooth at the apex; sutures 
deep; whorls five, convex, sub-canaliculate near the upper sutures; stri@ transverse, numerous, large; sulci longitu- 
dinal, small, nearly obsolete at the lower suture; last whorl rounded; base striate; perforation very small; mouth ovate, 
effuse; fold on the columella oblique, obtuse. 
Length .11. Breadth .05 of an inch. 
Remarks.—The transverse strie are extremely numerous. Near the base they be- 
come alternate. ‘The longitudinal sulcations are small; they are very perceptible near 
the superior suture, but gradually become obsolete as they approach the lower part of 
the whorls. The perforation is extremely minute,—so much go as to be almost obsolete. 
‘The margin of the mouth is continuous round the inner lip. This character is wanting 
in young and unfinished specimens. The fold on the columella can scarcely be seen on 
a front view. ‘The upper side of it is perpendicular, the lower very oblique. 
This shell and the last are almost too bullate to be classed with the Acteons. They 
may, perhaps, more properly belong to the Tornatelle. 
A. nitens, Px. 86. Fic. 60. 
A. testd ovato-acuminatd, crassd, perforata, levi, politd; spird subulatd, mamillatd; suturis impressis, profundis; 
anfractibus quinque, convexis; anfractu ultimo rotundato; basi levi; perforatione parvd; aperturd ovatd, elongata, 
effusd; plicd columellari obtusd, crassa. 
Shell ovate-acuminate, thick, perforate, smooth, polished; spire subulate, mamillate; sutures impressed, deep; 
whorls five, convex; last whorl rounded; base smooth; perforation small; mouth ovate, elongated, effuse; fold on the 
columella obtuse, thick. 
Length .18, Breadth .10 of an inch. 
Remarks.—The mouth is large, acute above and rounded and effuse below. The last 
whorl expands rather suddenly beyond the line of the rest, and is more than half the 
length of the shell. The fold on the columella is broad at base, but slightly elevated, 
and obtuse. The surface of the shell is remarkably glabrous and shining. 
The external outline has more the aspect of a Phasianella than that of an Acteon. I 
know none of its congeners to which it is allied. 
A. Minium, Px. 86. Fia. 61. 
A. testd ovato-conicd, crassd, perforatd, striatd, politd; spird sub-attenuatd, conicd, obtusd, ad apicem levi; suturis 
linearibus, impressis; anfractibus quinque, planulatis; striis transversalibus, raris, impressis; anfractu ultimo rotun- 
dato; basi crebré striata; perforatione parva; apertura ovatd, integra; plicd columellari magni, aculd, ad basim lata. 
Shell ovately conical, thick, perforate, striate, polished ; spire somewhat attenuate, conical, obtuse, smooth at the 
“pex; sutures linear, impressed; whorls five, flattened; strie transverse, few, impressed; last whorl rounded; base 
closely striate: perforation small; mouth ovate, entire; fold on the columella large, acute, wide at base. 
Length .10, Breadth .04 of an inch. 
Remarks.—On the upper whorls the strie are three in number. On the last whorl 
they are much more numerous, particularly towards the base, where they become 
VOL. IX.—68 
