Species ovate, slightly elongated; the spire rather projecting, pointed, not coronated.
C. imperialis. The imperial Cone.
Species conic, spire coronated, projecting, or flat.
C. striatus. The striated Cone.
Species oblong-ovate, gibbous, not coronated, clouded and strongly striated transversely.
C. generalis. The general Cone.
Species conic, spire projecting, not crowned with tubercles; colour reddish brown, or clouded with orange and interrupted fillets.
C. mustelinus. The Weasel Cone. Pl. [31], fig. 1.
Species with base sub-truncated; spire channelled and banded with orange spots; body whitish, encircled in the middle by orange-spotted bands.