Fusus. 



MOLLUSCA. 



63 



26. F. siGMiLiNiATUS. — The Sigmi-lined Fusus, pi. XXXV. 

 fig. 11. 



Buccinum sigmilineutn. Phillips, Geo. of Yorkshire, II. p. 

 230, pi. 16, fig. 12. 



Shell elongated ; spire rather lengthened, consisting of six or 

 seven ventricose volutions; whole shell covered with signioidal 

 striae ; aperture oblong-oval, ending in a short, nearly straight 

 beak ; outer lip rather thin, and even. 



Found in the Mountain Limestone at Holland and Kildare, 

 Queen's County, Ireland. 



27. F. coNTRARius — The Reversed Fusus, pi. XXXV- 

 fig. 10. 



J-'usus contraritts: Fleming, Brit. An. p. 253. Lyell's Elts. 

 of Geo. p. 303, f. 129. Murex contrarius, Sowerby, Min. 

 Conch. I. p. 63, pi. 23. 



Shell elongated, fusiform, reversed; spire consisting of five 

 or six hetrostrophe, rather ventricose volutions ; whole shell 

 generally with numerous, rounded, spiral stria; (and in some 

 instances smooth) ; aperture oblong placed on the right side, 

 a little pointed above, and terminating below in a short, slightly 

 bent, open canal ; inner lip broadly reflected on the columella ; 

 outer lip somewhat thickened, and expanding. 



This species is sometimes met with upwards of four mches and a 

 half in length. 



Found in the Suffolk Crag, &c. 



28. F. ALVEOLATUS. — The Checquered Fusus, pi. XXXVI. 

 fig. 27, 28. 



Fu^us alveolatus. Sowerby, Min. Conch. VI. p. 45, pi. 525, 

 fig. 1. 



Shell turreted, much elongated ; spire consisting of six or 

 seven volutions, obliquely flattened above ; the whole shell pro- 

 vided with thick, straight, rounded, longitudinal ribs, crossed by 

 two obtuse, spiral ribs on the volutions of the spire, and with 

 six or seven on the body, which gradually diminish in thickness 

 as they descend upon the beak ; the intervals between the ribs 

 presenting series of square and deep cells ; aperture nearly 

 round, contracting towards the canal below, which is close and 

 narrow ; inner lip smooth, broadly reflected on the columella, 

 and descending to the base of the canal ; outer lip plain, and 

 even on the edge ; beak half cylindrical in its form. 



Found in the Suffolk Crag. 



29. F. LONG/Evus — The Lengthened Fusus, pi. XXXV. 

 fig. 14. 



Fusus longcevus. Sowerby, Min. Conch. I. p. 141, pi. 63. 

 Fleming, Brit. An. p. 352. Murex longcevus, Brander, Foss. 

 Hant. p. 22, pi. 2, fig. 40, pi. 6, fig. 73, and pi. 8, fig. 93. 



Shell ventricose, smooth ; spire consisting of eight or nine 

 abruptly tapering, turreted volutions, flattened above, with 

 several knobs on the lower volutions, which extend to the 

 body, and terminate on the upper and inner margin of the 

 outer lip, where they are about half an inch in length, and 

 the same distance apart ; aperture nearly circular, contracting 

 below into a long, nearly straight, narrow canal, which is a 

 little curved near the base; inner lip smooth, broadly reflected 

 on the columella, and suddenly contracted as it approaches the 

 canal, continuing a mere line to the base of the beak, which 

 is about the same length as the spire ; outer lip thin, and even 

 on its edge. 



In the young state, the tubercles are nearly obsolete, and with 

 some transverse stria; upon the upper volutions. The full grown 

 shell is from seven and a half to eight and three (piarter inches in 

 length. 



Found at Ilordwell and Barton Chffs, Hampshire ; and also 

 at Muddiford. 



30. F. I'ORRECTDs — The Elongated Fusus, pi. XXXV. 

 fig. 17. 



Fusus pon-cclus. Fleming, Brit. An. p. 352. Fusus 

 rugosus, Sowerby, Min. Conch. III. pi. 274, fig. 8, 9. Murex 

 porrectus, Brander, Foss. Hant. p. 21, pi. 2, fig. 35. 



Shell much elongated, and narrow; spire consisting of twelve 

 or thirteen inflated volutions, well defined by the suture; whole 

 shell covered by numerous, prominent, longitudinal ribs, each 

 crossed by eight or nine fine, sharp, elevated stria;, producing a 

 rough appearance on the surface ; aperture subovate, contract- 

 ing as it descends, and ending in a long, narrow canal ; inner 

 lip smooth, rather broad above, and continuing to the base of 

 the lengthened, nearly straight beak ; outer lip thin. 



Found in the London Clay at Hordwell. 



31. F. ACUMINATUS — The Accuminated Fusus, pi. XXXV. 

 fig. 22. 



Ftisus acuminatus. Sowerby, Min. Conch. III. p. 131, fio-. 

 1, 2, 3. Fleming, Brit. An. p. 352. Murex porrectus, Bran- 

 der, Foss. Hant. pi. 2, fig. 36. 



Shell much elongated, acicular ; spire consisting of eight or 

 ten ventricose volutions ; the whole shell provided with many 

 depressed, nearly obsolete, irregular, longitudinal ribs, crossed 

 by numerous, elevated, spiral stria? ; aperture oblong-ovate, con- 

 tracting beneath into a narrow, lengthened canal; inner lip nar- 

 rowly reflected on the columella; outer lip expanded, and even 

 on the edge. 



Found in the London Clay at Hordwell. 



32. F. ASPER_The Rough Fusus, pi. XXXV. fig. 18. 

 Fusus asper. Sowerby, Min. Conch. III. p. 131, pi. 274, 



fig. 4, 5, 6, 7. Fleming, Brit. An. p. 352. 



Shell much elongated ; spire consisting of six or seven ven- 

 tricose volutions, terminating in an acute apex ; whole shell with 

 numerous, longitudinal, rather depressed ribs, which do not 

 extend to the beak ; crossed by four or five elevated, sharp, 

 tuberculate ridges, which are most conspicuous as thoy pass 

 over the costa;, and especially on the upper volutions; aperture 

 oblong-ovate, narrowing as it approaches the canal, which is 

 very long, and contracted ; inner lip slightly reflected on the 

 columella ; outer lip thin. 



Found in the London Clay at Hordwell Cliff. 



33. F. Harpulus The Little-Harp Fusus, pi. XXXVI. 



fig. 31, 32. 



Murex Harpula. Sowerby, Min. Conch. VI. p. 152, pi. 

 578, fig. 5. 



Shell oblong-ovate ; spire short, consisting of five depressed, 

 somewhat square volutions, terminating in a sharp apex ; with 

 numerous, close, thin, oblique, longitudinal ribs, which increase 

 in number towards the base, from intervening shorter ones ; 

 aperture almost orbicular, ending in a nearly straight canal. 



Found in the Carboniferous Limestone at Bradley. 



