MOLLUSCA. 



[TkaCIIELIPODA. 



hilicated. Length not quite three-eighths of an inch, breadth an eighth and a half. 

 Found at Greenock by Stewart Ker, Esq. ; rare. 



5. V. peliucida, pi. XIX. f. 4:>-l;>. — Fust Ed., pi. 38, f. 45-46. 



Shell subcylindrical, smooth, thin, pellucid and white ; aperture whole length of 

 the shell, somewhat dilating fur half ils extent ; outer lip rising above the body, and 

 a little thickened at its edge; superior extremity with a subumbilicus, and a very 

 slight duplicative towards the base of the columella. Length an eighth and a half 

 of an inch, breadth a little more thin half its length. We found this on the beach 

 ;it Dunbar ; very rare. 



<>. V. truncata, V \.X\X t f. 17-J8._ V. rWwsa— First Ed., pi. 38, f. 17-18; Bulla 

 truncata; Montagu, p. 223, pi. 7, f. 5. 



Shell subcylindrical, 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, pi. XIX, f. 12. —First Ed., pi. 38, f. 12; Bulla truncata; V. 

 biensts; Adams, in Linn. Tr. V, pi. 1, f. 1-2. 



Shell moderately strong, subcylindric, 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 and a half of an inch, breadth half its 

 length. Found in sand at the Wash, and at Belton sands, Frith of Forth. 



Genus 4. — Marginella. — 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, pi. X, f. 14 First Ed., pi. 51, f. 14; Valuta catinata ; Mon- 

 tagu, p, 23b\ pi. 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 

 volution 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. 



J. C. la-vi.% pi. X, f. 15.— First Ed., pi. 51, f. 15; Cyprma voluta ; Montagu, 

 p. 203, pi. li, f. 7. 



Shell conoid, strong, 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- 

 nlicated ; 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. 



Family III. — Purpurifera. 



Shell with a sliort canal posteriorly ascending, or with an oblique 

 notch at the base of the aperture, directed backwards. 



Genus G — Buccinum. — Linnams. 



Shell ovate, or ovate-conical; aperture longitudinal, with the 

 base emarginato; no canal; columella not depressed, turgid above. 



1. B. undatum, pi. IV, f. 8— First Ed., pi. 49, f. 8; Montagu, p. 237; La- 

 marck, Nil, pi. 7, p. 268; Pennant, IV, pi. 73, f. 90; Donovan, pi. 101. 



Shell strong, with seven or eight ventricose volutions, spire short, body large, 

 ventricose; ondulately ribbed, and with strong waved transverse striae, intersected 

 with finer longitudinal strite ; 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 

 O. Trevelyan, Esq. at Ramsgate, and is preserved in the splendid museum of Sir John 

 Trevelyan, Bart., at Wellington. 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, pi. 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 



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, pi. IV, f. 1 1. —First Ed., pi. 49, f . 1 1 ; Lamarck, VII, p. 264 ; 

 Bua inum striatum ; Pennant, IV, p. 121 ; LUter Ang., p. 157, pi. 3, f. 3. 



Shell oblong, conical, thin, transversely and prominently sulcatcd 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, pi. 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, pi. 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. glaciate, pi. IV, f. 12-13.— First Ed., pi. 49, f. 12-13 ; Montagu, Sup. 

 p. 109; Maton and Racket in Linn. Trans. VIII, p. 136; Donovan, V, pi. 154. 



Shell rather thin, taper and of a livid brown colour, with nine volutions, spirally 

 striate ; top of each volution dentated or seraicostated ; 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, pi. IV, f. 14.— First Ed., pi. 49, f. 14; Bennet, in 

 Zool. Jour., 1, p. 398, pi. 17, f. 1-2. 



Shell thin, ovate-conical, with eight convex volutions, covered with fine, close 

 set, transverse, slightly undulated stria?, 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 volutvons , 

 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., pi. 399, f. 5, but differs from it in its less elongated form, in 

 the absence of the grooves which that shell possesses in addition to the stria?, in the 

 regular convexity of its volutions, which are not flattened at the top, and in the 

 smoothness of its columella. 



5. B. ooum, pi. IV, f. 15.— First Ed., pi. 49, f. 15; Turton, in Zool. Jour., 

 II, p. 366, pi. 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, pi. IV, f. 16-17— First Ed., pi. 49, f. 16-17; Adams, in Linn. 

 Trans., Ill, pi. 13, f. 3-4; Montagu, p. 250. 



Shell white, short ; with five volutions ; longitudinally costated, and transversely 

 striate. 



7. B. obtusulum, pi. IV, f. 18.— First Ed., pi. 49, f. 18; Walker, pi. 9, f. 89 ; 

 Adams, Mic, pi. 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, pi. Ill, f. 5-6; Broderip, in Zool. Jour., V, p. 44, pi. 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 stria?; coated with a brown epidermis; aperture 

 miik-whitc ; 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 Kilco*rsie ; and is now in the cabinet of Mr Sowerby. 



9. B. fusiforme, pi. Ill, f. 4; Broderip, in Zool. Jour., V, p. 45, pi. 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 tic 

 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 — Lamarck. 



Shell ovate, or ovate-conical, spire generally very sliort, and in 

 some species much depressed; aperture contracted, or nearly ovale; 

 lip in some species greatly thickened, and covering the whole body in 

 front, forming a uniform mass with the columella; canal straight. 



I . Zv*. reticulata, pi. IV, f. 22. — Buccinum reticulatum.+—Tirst Ed., pi. 49, f. 22 ; 

 Montagu, p. 2-10 ; Donovan, pi. 7ii ; J3. pullus, Pennant, IV, pi. 72, f. 68 ; Lamar, It, 

 VII, p. 2(>7. 



