Hist. 7 77.

54. Nassa fasciata, n.
Buccinum fasciatum, Lam. Hist. 7 271.

55. Nassa suturalis, n.
Buccinum suturale, Lam. Hist. 7 269 ?

56. Nassa mutabilis, n.
Buccinum mutabile, Gmel. Syst. Nat. 3481. Lam. Hist. 7 269.
Icon. List. t. 975. f. 30. Born. t. 9. f. 13. Chemn. Conch. 11 t. 188. f.
1810, 1811.

57. Nassa livida (n.s.)
Testa ovato-conica superne transverse plicata basi spiraliter striata
purpureo-livida obscure castaneo bifasciata, anfractibus convexiusculis,
sutura linea alba notata, labro extus marginato intus sulcato.

Icon. --

Shell ovate conical, livid purplish-white, with one or two central,
obscure brown, bands; upper whorls bluntly transversely plaited, the rest
smooth, livid, except at the front part of the last, just over the
groove, where it is spirally striated; the suture distinct (not
channelled) marked by a white line; the inner lip distinct, raised, the
outer thickened on the outer side, edge sharp, inside grooved; the throat
fulvous-brown; axis one inch, diameter half an inch.

This shell belongs to the group of Nassa, but will perhaps form a
distinct genus intermediate between it and Columbella, characterized by
the narrow form of the mouth. It is most nearly allied to N. olivacea, n.
(Bucc. olivaceum, Lam.) and N. canaliculata, n. (Bucc. canaliculatum,
Lam.)

58. Clavatula striata (n.s.)

Testa ovato-lanceolata turrita albida regulariter spiraliter
sulcato-striata transverse et interrupte costata, anfractuum margine
superiore angulato subnodoso, cauda brevi, fauce sulcata.

Icon. --

Shell ovate turreted, whitish-brown, with eleven or twelve longitudinal
interrupted ribs forming long tubercles on the centre of the whorls; the
whorls with distant impressed spiral lines near the suture, with a rather
flattened slightly nodulose band; the mouth rather more than one-third
the length of the shell; outer lip thin inside, grooved; tail short, with
a linear depression on its columella side; axis ten-twelfths, diameter
four-twelfths of an inch.

59. Cassis achatina, var. Lam. Hist. 7 226.

A worn specimen, apparently a variety of this species. It is entirely
smooth, polished, and has the last whorl near the spire slightly concave,
edged with a scarcely raised rather nodulous line, the outer lip is very
thick, grooved on its inner edge, and the columella is distinctly
plaited.

It may perhaps prove to be a new kind; but the species of this genus are
so exceedingly apt to vary