II 



MOLLUSC A. 



[TltACHELIPODA. 



Genus XVIII Pyramis — Brown. 



Shell generally subulate, gradually tapering to a point; body 

 usually short, and the spire long; volutions but slightly divided by 

 the suture, and seldom inflated; aperture mostly oblong-ovate, 

 placed nearly perpendicular, with its upper angle contracted for the 

 most part; outer lip rarely continuous. 



1. /'. tubuleUtu, pi. IX. f. 04,05 First Ed., pi. 50, f. 04, 05; Turbo 



. Donovan, pi. 172; Helix suhulata, Maton and Racket, Linn. 

 Trans., VIII, p. 210; Montagu, Sup. p. 142; Phasianellajubulata, Flem- 

 ing, Brit. An., p. 801. 



Shell strong, subulate, very smooth and glossy; consisting of ten per- 

 fectly flat volutions, separated by a fine suture, and tapering to a sharp- 

 . 1 1 1. x : aperture ohlong-ovatc, contracted above ; outer lip rather 

 thick; pillar lip slightly reflected on the columella; colour cream-white 

 or flesh-colour, with a double spiral band of burnt-sienna colour, which 

 becomes obsolete towards the apex. Length of the largest sized sped- 

 ii larly three quarter- of an inch; breadth not a third its length. 

 Found at Weymouth, and in the Frith of Forth. Very rare. 



Donovan's figure has six hands on the hod)', but we have never met 

 with any specimens containing more than two. 



2. P.politus, pi. IX, f. 59, 00 — First Ed., pi. 50, f. 59, 60; Helix 

 polita, Montagu, p. 398; Maton and Racket, Linn. Trans., VIII, p. 210 ; 



Turbo albus, Donovan, pi. 177; PhasianeUu polita, Fleming, Brit. An., 

 p. 301. 



Shell subulate, strong, white, extremely glossy, and quite smooth ; 

 with from nine to thirteen flat volutions, and hardly defined by the suture, 

 which is very indistinct in this species; volutions gradually tapering to a 

 sharp point ; spire very long ; body short ; aperture oval, slightly con- 

 tracted above; outer lip thick, but not marginated or reflexed; pillar lip 

 replicated. Length five-eighths of an inch. Found at Exmouth, 

 Devonshire; Weymouth, Dorsetshire; South Wales; the Frith of Forth; 

 and Bantry Bay, Ireland. We procured a fine specimen from the stomach 

 of a haddock, which was taken in the Frith of Forth. 



3. P. elegant issimus, pi. IX, f. 01 — First Ed., pi. 50, f. 61 ; Helix 

 elegantissima, Montagu, p. 298, pi. 10, f. 2; Maton and Racket, Linn. 

 Trans., VIII, p. 209 ; Walker, f. 39 ; Turritella subulata, Fleming, Brit. 

 An., p. 303. 



Shell subulate, glossy, semi-pellucid, white; with from nine to thirteen 

 Hit volutions, well defined by the suture; body very short; spire long, 

 taper, and terminating in an acute apex; the whole shell covered with 

 regular, somewhat oblique, strong longitudinal ribs, which are hardly in- 

 terrupted by the line of the suture; the sulci are moderately deep, but 

 not BO broad as the elevated ridges; aperture suborhicular, somewhat 

 angulated both above and below; outer lip strong; pillar lip slightly re- 

 i.n the columella. Length a quarter of an inch; breadth not a 

 fourth of its length. Found at Sandwich, Falmouth, Salcomb Bay, Ilfra- 

 comb, Devonshire, and Portmarnock, Ireland. 



I. P. crenatus, pi. IX, f. 53 First Ed., pi. 50, f. 53. 



Shell subulate, white, pellucid, with ten volutions, well separated by 

 the hue of the suture; hotly very short, spire very long, and tapering to 

 ii acute point ; the whole shell covered with strong, longitudinal, straight 

 ribs, which are crossed by extremely minute transverse striae; aperture 

 suborbicular ; outer lip Strong; pillar lip slightly reflected on the colu- 

 ii ilia. Length a quarter of an inch; breadth about a fourth of its length. 

 Found at Belton Sands, near Dunbar, by General Bingham, and in his 

 Cabinet. 



This species may easily be mistaken for Pyramis elegantissimus, but 

 differs in the ribs being quite straight, and in being transversely striate. 



5. /'. suiarcuatus, pi. IX, f. 62 First Ed., pi. 50, f. 62; Turbo tubar- 



rwitus, Adams, Linn. Trans., Ill, p. 66, pi. 13, f. 27, 28; Maton and 

 Racket, Linn. Trans., VIII, p. 185; Montagu, p. 333. 



" Shell pellucid, white, and a little curved towards the tip, with ten 

 longitudinally ribbed volutions; colour white." — Adams. Probably only 

 a distorted variety of P. elegantissimut. Found on the coast of Pem- 

 brokeshire. 



0. /'. unicus, pi. IX, f..46 — First Ed., pi. 50, f. 46 and 48 ; Turbo 

 unicus, Maton and Racket, Linn. Trans., VIII, p. 174; Montagu, p. 

 ■><)<K pi. 12, f. 2; Turbo albiilus, Adams, Micros., pi. 14, f. 17; Turri- 

 tella mi/,, ;, Fleming, Brit. An., p. 303. 



Shell subulate, with nine slender, glossy, pellucid, white, well-rounded 



volutions ; hody very short, spire very long, terminating in a fine point ; 

 the whole shell invested with fine longitudinal, somewhat undulating 

 ridges, and the intermediate spaces covered with extremely fine transverse 

 stria?, which can only be seen by the aid of a strong lens ; aperture subor- 

 bicular, inclining to oval. Length two-tenths of an inch ; breadth about 

 a fourth its length. Found on the Devonshire and Welsh coasts ; and at 

 Dunbar, by General Bingham. 



7. P- indistinct us, pi. IX, f. 47 First Ed., pi. 50, f. 47; Montagu, 



Sup. p. 129; Turritella indistincla, Fleming, Brit. An., p. 304. 



Shell suhcylindrical, glossy, white; with six nearly flat volutions, ter- 

 minating in a somewhat obtuse apex, but well-defined by the line of the 

 suture ; the w hole shell is very finely ribbed longitudinally, and slightly 

 and indistinctly punctured in the furrows, which can only he seen by the 

 aid of a powerful lens, through which it appears cancellated ; these trans- 

 verse striae are confined to the sulci, and do not cross the ribs ; aperture 

 subovate ; outer lip thin, expanded ; pillar lip a little spread on the co- 

 lumella. Length an eighth of an inch; breadth one-third its length. 

 Found at Sandwich, and at Belton Sands, near Dunbar, by General 

 Bingham. 



8. P. subtruncatus, pi. IX, f. 49, 50 First Ed., pi. 50, f. 49, 50; 



Turbo subtruncatus, Montagu, p. 300, pi. 10, f. 1; Turritella subtrun- 



cata, Fleming, Brit. An., p. 303. 



Shell suhcylindrical, with six or seven rounded, smooth, pellucid, yel- 

 lowish-white volutions; slightly tapering, and terminating in an obtuse 

 apex, with strong longitudinal stria?; aperture suborhicular, somewhat 

 inclining to oval. Length three-tenths of an inch; breadth not half its 

 length. Found on the Southampton coast, at Salcomb Bay, and at Belton 

 Sands, near Dunbar, by General Bingham. 



Colonel Montagu had described this species from worn specimens, as 

 ours are all distinctly striate. 



9. P. nivosus, pi. IX, f. 25, 26 First Ed., pi. 50, f. 25, 26; Turbo 



nivosus, Montagu, p. 326; Maton and Racket, Linn. Trans., VIII, p. 163 ; 

 Turbo nivosus, Fleming, Brit. An., p. 300. 



Shell suhcylindrical, smooth, white, pellucid, with five slightly pro- 

 duced volutions, but well separated by the raised, thread-like, spiral line of 

 the suture, terminating in an obtuse apex ; body somewhat longer than 

 the spire, the base furnished with a series of spiral striae, which reach to 

 the upper margin of the outer lip in front ; aperture suborhicular, much 

 turned to one side ; outer lip smooth, a little thickened, continuous ; 

 pillar lip considerably reflected on the columella, with a slight subumbili- 

 cus behind. Length not quite an eighth of an inch ; breadth not half its 

 length. Found on the south coast of Devon, very rare, and at Belton 

 Sands, near Dunbar. 



This species has much the appearance of Jaminea interstineta, but is 

 destitute of both the tooth and ribs. 



Colonel Montagu has overlooked the transverse striae at the base of 

 the shell. 



10. P. eandidus, pi. IX, f. 31 First Ed., pi. 50, f. 31. 



Shell semicylindrical, rather strong, blueish-white, and glossy ; consist- 

 ing of five volutions, slightly separated by the line of the suture, and ter- 

 minating in a rather obtuse apex; hody somewhat longer than the spire; 

 the whole shell covered with very fine spiral stria?; aperture subovate; 

 flattened at the base of the columella ; outer lip smooth, somewhat thick- 

 ened; pillar lip very slightly reflected on the columella. Length a little 

 more than an eighth of an inch; breadth not half its length. Found at 

 Belton Sands, near Dunbar, by General Bingham. 



11. P. discon, pi. IX, f. 32 First Ed., pi. 50, f. 32. 



Shell suhcylindrical, strong, snow-white, and glossy; five rather pro- 

 duced, slightly-divided volutions, and terminating in a rather obtuse apex; 

 body and two lower volutions of the spire covered with close, regular, 

 spiral stria 1 ; these are till crossed tit top by numerous, short, longitudinal 

 furrows; aperture semiovate, a little contracted at its upper angle, and 

 slightly flattened on the pillar side; outer lip smooth, somewh.it thickened; 

 pillai lip slightly reflected on the columella. Length an eighth of an inch ; 

 breadth not half its length. Found at Belton Sands, near Dunbar, by 

 General Bingham. 



This species is nearly allied to P. eandidus, but it is broader in propor- 

 tion to its length, the stria? are wider, the spire shorter, the aperture 

 longer and different in shape, and the furrows at the upper margin of the 

 three lower volutions, all distinguish it from that shell. 



12. P. Uevis, pi. IX, f. 51-52 First Ed., pi. 50, f. 51-52. 



Shell subulate, snow-white, shining, consisting of eight greatly pro- 



