Involute.] 
MOLLUSCA. • 
21 
Shell with from nine to twelve taper, tui-reted, deeply divided 
volutions, terminating in an acute apex; the whole length of the 
shell invested with from nine to twelve remilar, lonsritudinal, ob- 
liijue, high, distant, membranaceous ribs ; aperture orbicular, its 
margin thickened by a rib that surrounds it; colour white, some- 
times with a few transverse fillets of brown or brownish red. 
Length an inch and a half ; diameter at the base half an inch ; 
provided with a coriaceous, black, and spirally striated oper- 
culum. 
Found at Falmouth, Cornwall, the south coast of Devonshire, 
Dorsetshire, and Kent ; Montagu procured it alive, at the Salt- 
Stone, estuary of Kingsbridge, of a sujjerior size ; found also in 
Dublin Bay and Portmarnock, Ireland, plentiful ; and at Dun- 
bar, sparingly, according to Capt. Laskey. 
2. b’. clathraUihis, pi. VIII, f. 12 — First Ed., pi. 51, f. 12 ; 
Turbo clathratulus.’Ywvtori^ Linnaeus, IV, p. 500; Ib. Brit. 
Fauna, p. 179 : Adams, Micro., pi. 14, f. 19 ; Montagu, p. 297 ; 
Sup., p. 124; Maton and Racket, Linn. Trans., VIII, pi. 5, f. 
1 ; Walker, Min. Sh., f. 45. 
Shell with five or six taper, turreted, deeply divided volutions; 
with from fifteen to seventeen close-set, oblique, longitudinal, 
very delicate ribs ; aperture orbicular ; lip thickened by a rib. 
Length about half an inch. 
Found sparingly on the south Devonshire coast, Weymouth, 
and Dunbar. 
3. S. Turtoni, pi. XXI, f. 1, 2 ; Scalaria Turtoni, Turton, 
Conch. Die., p. 208, f. 97 ; Fleming, Brit. An., 311 ; Ency. 
Meth., pi. 451, f. 3 ; Turbo clathratus, var., Donovan, Brit. Sh., 
pi. 28, lower fig. 
Shell with about twelve deeply divided volutions, and twelve 
longitudinal strong ribs, the intermediate spaces spirally striate; 
colour pale brown, with two or three dai’k reddish brown spiral 
bands, and the ribs crossed by the same colour ; aperture orbicu- 
lar ; lips white, thickened by a rib, a little reflected. Length 
two inches ; breadth nearly three-quarters. 
Found in Dublin Bay and Balbriggin, Ireland. 
Family III. — Plicacea. 
Shell with the aperture somewhat contracted, and the colu- 
mella plaited. 
Genus 25. — Tornatella. — Lamarck. 
Shell oval, oblong, or cylindrical, usually transversely striate, 
and destitute of epidermis ; spire generally very short, and some- 
what obtuse, but elongated and subacute in some species ; aper- 
ture longitudinal, elongated, entire, w'ith the outer lip simple, 
acutely edged, and sometimes with a slight contraction and in- 
crassation ; inner lip thin, and but slightly spread ; columella 
sjiiral, with one or several folds at its base. 
1. T. fasciata, pi. VIII, f. 4, 5. — First Ed., pi. 51, f. 4, 5 ; 
Tornatella fasciata, Lamarck, VI, pt. 2nd, p. 220 ; Tornatella 
tornatilis, Fleming, Brit. An., p. 336 ; Valuta tornatilus, Mon- 
tagu, p. 231 ; Pennant, Brit. Zool., IV, p, 117, pi. 71, f. 86 ; 
Donovan, Brit. Sh., II, pi. 57 ; Turton, Brit. Fan., p. 170. 
Shell oval ; body large in proportion to the spire ; with eight 
gently rounded volutions, abioiptly tapering to an acute apex, and 
well defined by a deep channelled suture ; upper part invested by 
F 
five, somewhat irregular, spiral striae, descending to the base of 
the lower band, from whence to the base of the body it is pro- 
vided with a series of five transverse ribs, the insterstices between 
them erossed by strong longitudinal striae ; aperture long, nar- 
row, much straitened above, and widened below, by the narrow- 
ing of the basal region of the body ; outer lip thin, plain above, 
but crenulated on its lower margin by the basal ribs ; columella 
provided with one plait near the retal extremity ; colour purplish 
red, the body volution ornamented with two transverse, spiral, 
white bands, usually bordered with a darker shade of purplish 
red, and the upper white band proceeds continuously to the apex ^ 
on each side of the suture ; columella and lower portion of the 
outer lip, within, in full grown shells, of a rich rusty browm. 
Length three-quarters of an inch. 
Found at Teignmouth and Exmouth, Devonshii-e ; Wey- 
mouth, Doi’setshii’e ; Anglesea and Longhorne, Wales; Poi’t- 
marnock, Ireland ; Dunbai*, Tyne Sands and Leith Roads, Frith 
of Forth. 
Genus 25. — Jaminia. — B ruguiere. 
Shell ovate, destitute of epidermis ; spire generally short ; 
aperture elongated ; pillar lip furnished with j>laits or teeth ; 
outer lip smooth and entire, or toothed in some species. 
^subdivision Without teeth on, the outer lip, 
1. J. plicata, pi. VIII, f. 10. — First ed., pi. 51, f. 10; 
Valuta plicata, Montagu, p. 325, pi. 21, f. 2 ; Turton, Bx’it. 
Fau., p. 170; Odostomia plicata, Fleming, Brit. An., p. 310. 
Shell smooth, glossy, subpellucid, and white ; with six some- 
what slender, well defined, volutions, terminating in an obtuse 
apex ; aperture suboval, somewhat contracted above, and rounded 
at the lower extremity ; outer lip sharp and even ; inner lip 
thickened, and provided with a single tooth-like plait. Length 
an eighth of an inch ; breadth one-third its length. 
Found in sand from Salcomb Bay ; but rare. 
2. J. inte.rstincta, pi. IX, f. 10. — First Ed., pi. 50, f. 10; 
Turbo inter stinctvs, Adams, Linn. Tx*., Ill, p. 66, pi. 13, f. 23, 
24; Montagu, p. 324, pi. 12, f. 10; Valuta interstincta, Tui'ton, 
Brit. Fauna, p. 170; Odostomia interstincta, Fleming, Brit. 
An., p. 310. 
Shell with five white, glossy, I'ather flat, taper volutions, sejxa- 
I’ated by a small suture, and terminating in an obtuse apex ; the 
whole shell covered by fine longitudinal ribs ; outer lip entire, 
thin ; pillar lip slightly reflected, and provided with a single 
tooth. Length one line; breadth a thii'd of its length. 
Found in sand from Bigberry Bay, Devonshire ; but very 
rare. 
3. J. unidentata, pi. IX, f. 44, 45.— Fii’st Ed., pi. 50, f. 44, 
45 ; Turbo unidentatus, Montagu, p. 324 ; Valuta unidentata, 
Turton, Bi’it. Fa., p. 170 ; Odostomia unidentata, Fleminjr, 
Brit. An., p. 310. 
Shell conic, sti'ong ; with five or six slightly inflated, white, 
smooth, glossy, subpellucid volutions, terminating in rather an 
obtuse apex ; ajxerture suboval, slightly contracted above : outer 
lip plain ; columella furnished near the middle with a single 
tooth. Length two-tenths of an inch ; breadth about one-half 
its length. 
Found in deep water in Salcomb Bay, Devonshire ; and at 
Dunbai', Frith of Forth. 
