4 MOLLUSCA. 
bilicated. Length not quite three-ciehths of an inch, breadth an eighth and a half. 
Found at Greenock by Stewart Ker, Esq. ; rare. 
5. V. pellucida, pl. XIX, f. 45-46.—First Ed., pl. 38, f. 45-46. 
Shell subeylindrical, smooth, thin, pellucid and white ; aperture whole length of 
the shell, somewhat dilating for half its extent ; outer lip rising above the body, and 
a little thickened at its edge; superior extremity with a subumbilicus, and a very 
slight duplicature towards the base of the columella. Length an eighth and a half 
of an inch, breadth a little more than half its length. We found this on the beach 
- at Dunbar; very rare. 
6. V. truncata, pl. XIX, f. 17-18.— V. retusa—First Ed., pl. 38, f. 17-18; Bulla 
truncata ; Montagu, p. 223, pl. 7, f. 5. 
Shell subeylindrical, rather strong, opaque white; upper part longitudinally 
striated, for about a third its length; apex truncated and largely umbilicated, 
showing their volutions; aperture the whole length, very narrow, but dilated a little 
at the base, and contracted most in the middle. Length nearly a quarter of an 
inch, breadth about half its length, more bulging beneath. Found in sand at Sal- 
comb bay, Devonshire, Weymouth, and Falmouth. 
7. V. retusa, pl. XIX, f. 12.—First Ed., pl. 38, f. 12; Bulla truncata ; V. 
Reglubiensis ; Adams, in Linn. Tr. V, pl. J, f. 1-2. 
Shell moderately strong, subeylindric, opaque and white, longitudinally wrinkled ; 
apex obtuse, aperture whole length of the shell, very much compressed at the top, 
and gradually widening beneath, base somewhat contracted; outer lip slightly inflected 
above and thin below. Length an eighth anda half of an inch, breadth half its 
length. Found in sand at the Wash, and at Belton sands, Frith of Forth. 
Genus 4.—MarGine_ita.— Lamarck. 
Shell oblong-ovate, smooth; spire short, outer lip with a mar- 
ginal longitudinal varix; base slightly notched; columella plaited ; 
folds nearly equal. 
1. M. catinata, pl. X, f. 14.—First Ed., pl. 51, f. 14; Voluta catinata ; Mon- 
tagu, p. 236, pl. 6, f. 2. 
Shell oblong-oval, strong, subpellucid, white and very glossy; with four bands of 
opaque white, oblong spots, connected by small rufous catinated specks; upper 
yolution hardly defined, apex indented, involute ; aperture linear, extending the whole 
length of the shell; outer lip thick, obsoletely denticulated, but not marginated ; 
columella quadruplicated, with two strong and two faint folds. Length a quarter of 
an inch, breadth at top one-eighth. Found in pools of water, St Austle bay, near 
Fowey, off the Lizard, and at Penzance. 
Genus 5.—CoLuMBELLA.—Lamarck. 
Shell oval, or ovate, spire short; base of the aperture more or 
less emarginate, and destitute of a canal; columella plaited; outer 
lip with an internal prominence, which contracts the aperture. 
1. C. levis, pl. X, i, 15.—First Ed., pl. 51, f. 15; Cyprea voluta ; Montagu, 
p- 203, pl. 6, Ea 
Shell conoid, stronz, thick, the body very large, spire very short, consisting of 
two very small volutions; aperture linear, terminated by a short canal; inner lip 
faintly, and the outer lip rather strongly denticulated and thickened ; columella sub- 
plicated; surface with a fine polish, and both angles of the aperture have a slight 
tinge of pink. Length about half an inch. Found in deep water in Salcomb bay. 
Famity I]]—Purpurirera. 
Shell with a short canal posteriorly ascending, or with an oblique 
notch at the base of the aperture, directed backwards. 
Genus 6.—Buccinum.—Linneus. 
Shell ovate, or ovate-conical; aperture longitudinal, with the 
base emarginate; no canal; columella not depressed, turgid above. 
1. B. undatum, pl. 1V, f. 8.—First Ed., pl. 49, f. 8; Montagu, p. 237; La- 
marek, VII, pl. 7, p. 263; Pennant, IV, pl. 73, f. 90; Donovan, pl. 104. 
Shell strong, with seven or eight ventricose volutions, spire short, body large, 
ventricose; undulately ribbed, and with strong waved transverse striw, intersected 
with finer longitudinal striz; covered with a strong fuscous epidermis, beneath 
which the shell is brownish or white. Young shells are sometimes mottled with 
brown. From 4 to 5 inches in length. Inhabits*almost all the British coasts. 
Figures 9 and 10 is a reversed or heterostrophe variety of this shell, found by Walter 
C. Trevelyan, Esq. at Ramsgate, and is preserved in the splendid museum of Sir John 
Trevelyan, Bart., at Wallington. A small variety is common in Loch Ryan, with a 
strong wave in the outer lip; the body without undulations, and the spire slightly 
undulate. Fig. 1, pl. 4, is what appears to us another variety of B. undatum ; 
it is much more subulate, the spire is fusiform; the breadth of the body being only 
[TRacHELIPoDA. 
a third of its length. It is from deep water, off the Orkney coast. We figured this 
from an excellent specimen in the cabinet of William Nicol, Esq., Edinburgh. 
2. B. Anglicanum, pl. IV, f. 11.—First Ed., pl. 49, f. 11; Lamarck, VII, p. 264; 
Buccinum striatum ; Pennant, 1V, p. 121; Lister Ang., p. 157, pl. 3, f. 3. 
Shell oblong, conical, thin, transversely and prominently suleated and striate ; 
fuscous brown, with reddish-brown spots and clouds; volutions convex; spire very 
short, body very large; apex of the spire obtuse; columella subverrucose. From 
three to four and a half inches in length. Found on the whole of the western coast 
of Britain, but rather rare on the east coast. Fig. 2, pl. 3, we consider a greatly 
produced variety of this shell from Orkney, where it is obtained by fishermen in 
deep-sea fishing adhering to their lines. It agrees in every particular with the B. 
Anglicanum, except in being much more elongated. Drawn from a fine specimen 
in the cabinet of William Nicol, Esq., Edinburgh. Fig. 3, pl. 3, is another variety 
from Zetland, in the cabinet of our friend, Edward Forbes, jun., Esq., of Douglas, 
Isle of Man. This variety was procured by Dr Edward Charleton, and was figured 
by Mr Forbes in the Magazine of Natural History, VIII, p. 593. 
3. B. glaciale, pl. IV, f. 12-13.—First Ed., pl. 49, f. 12-13; Montagu, Sup. 
p- 109; Maton and Racket in Linn. Trans. VIII, p. 136; Donovan, V, pl. 154. 
Shell rather thin, taper and of a livid brown colour, with nine volutions, spirally 
striate; top of each volution dentated or semicostated; near the base there is usually 
a single transverse stria larger than the others, which has been described as a semi- 
carina; aperture ovate, outer lip thin, somewhat spreading in adult shells. Length 
two and a half inches. Found in Orkney; very rare. 
4, B. Humphreysianum, pl. IV, f. 14.—First Ed., pl. 49, f. 14; Bennet, in 
Zool. Jour., 1, p. 398, pl. 17, f. 1-2. 
Shell thin, ovate-conical, with eight convex volutions, covered with fine, close 
set, transverse, slightly undulated strie, crossed by very minute longitudinal lines ; 
the last volution furnished with three brown double bands, the upper one nearly 
obsolete, irregularly spotted with white, gradually disappearing in the upper volutions, 
columella smooth, white; aperture horn coloured, lip white, slightly thickened and 
reflected on the margin; canal very short, with a slight tinge of violet behind it. 
Length two inches, breadth one inch. Inhabits the harbour of Cork, where it was 
discovered by Mr John D. Humphreys. 
Mr Bennet says this shell approaches nearly to the Buccinum Norwegicum, En- 
cyclop. Method., pl. 399, f. 5, but differs from it in its less elongated form, m 
the absence of the grooves which that shell possesses in addition to the strie, in the 
regular convexity of its volutions, which are not flattened at the top, and in the 
smoothness of its columella. 
5. B. ovum, pl. IV, f. 15.—First Ed., pl. 49, f. 15; Turton, in Zool. Jour., 
II, p. 366, pl. 13, f. 9. 
Shell oval, inflated, thin, ivory white, with six tumid volutions; outer lip thin, 
smooth. Length an inch and three quarters, breadth rather more than an inch. 
Dredged off Plymouth. 
6. B. breve, pl. 1V, f. 16-17.First Ed., pl. 49, f. 16-17; Adains, in Linn. 
Trans., III, pl. 13, f. 3-4; Montagu, p. 250. 
Shell white, short; with five volutions; longitudinally costated, and transversely 
striate. 
7. B. obtusulum, pl. IV, f. 18.—First Ed., pl. 49, f. 18; Walker, pl. 9, f. 89; 
Adams, Mic., pl. 14, f. 25; Montagu, p. 250. 
“: The bellied whilk of three spires, with an oval aperture; colour opaque white.” 
From Feversham Creek; very rare. Walker. 
The above two species have not come under our own notice, and therefore we give 
them as figured and described by the authors. 
8. B. acuminatum, pl. III, f. 5-6; Broderip, in Zool. Jour., V, p. 44, pl. 3, 
f.. 1=2. 
Shell conical-subulate, tapering gradually from the angle of the body to the apex, 
which is acuminated ; spire consisting of nine volutions; the whole shell covered 
with strong spiral, elevated, angular strie ; coated with a brown epidermis; aperture 
milk-white ; edge of the lip somewhat reflected; columella with the inner lip strongly 
marked with a double plait; basal furrow deep, and the canal large. Dredged alive 
off Torquay, by Viscount Kilcoxrsie ; and is now in the cabinet of Mr Sowerby. 
9. B. fusiforme, pl. II, f. 4; Broderip, in Zool. Jour., V, p. 45, pl. 3, f. 3. 
Shell fusiform, white, with seven ventricose volutions, crossed by numerous 
longitudinal subgranulose ribs, and striate transversely ; the ribs do not extend to the 
lower part of the body volution, but leave the base simply striated transversely, 
pillar smooth. Found by Mr J. Humphreys, near Cork. In the museum of Mr 
Sowerby. 
Genus 7.—Nassa.—Lamarch. 
Shell ovate, or ovate-conical, spire generally very short, and in 
some species much depressed; aperture contracted, or nearly ovate; 
lip in some species greatly thickened, and covering the whole body in 
front, forming a uniform mass with the columella; canal straight. 
1. N. reticulata, pl. 1V, f. 22.—Buccinum reticulatum.—First Ed., pl. 49, f. 225 
Montagu, p. 240; Donovan, pl. 76; B. pullus, Pennant, IV, pl. 72, f. 88; Lamarck, 
VIF; pie6as 
