50 



MOLLUSCA. 



BUCCINUM. 



appearance of a sinus ; outer lip thickened, internally toothed, 

 and a little straitened in the middle externally ; basal sinus 

 slightly curved, varying in size from a quarter to nearly three 

 quarters of an inch. 



Found in the Crag at Ipswich. 



3. B. RUGOSUM. — The Rough Buccinum, pi. XXXII. 



fig. 11. 



Buccinum rugosum. Sowerby, Min. Conch. II. p. 16, 

 pi. 1 10, fig. 3. Fleming, Brit. An. p. 344. 



Shell oblong-ovate ; volutions of the spire prominent, and 

 longitudinally ribbed, with wide-set transverse striae ; aper- 

 ture obovate, about a third the length of the shell, somewhat 

 widened below ; the sinus of the beak hardly recurved ; 

 columella smooth. 



Found in the Crag at Holywell. 



4. B. ? iMBRiCATUM. — The Imbricated Buccinum, pi. 

 XXXIl. fig. 10. 



Buccinum imbricatum. Sowerby, Min. Conch. VI. p. 1 27, 

 pi. 566, fig. 2. 



Shell ovate, spire short, consisting of four or five slightly 

 inflated volutions, with obtuse upper margins, which closely 

 embrace the volutions ; the whole shell provided with obscure 

 longitudinal strias ; aperture oblong-ovate, and half the length 

 of the shell. 



Found in the Mountain Limestone at Bradley, near New- 

 ton-Bushel, Devonshire. 



5. B. TENERUM. — The Tender Buccinum, pi. XXXII. 

 fig. 12, 13. Fleming, Brit. An. p. 345. 



Shell ovate, thin, spire consisting of four or five somewhat 

 inflated volutions, with longitudinal imbricated and arcuated 

 undulations ; crossed by coarse, irregular, wide-set striae ; 

 beak antiquated ; columella smooth ; aperture oblong-ovate, 

 slightly narrowed above. 



Found plentifully in the English Crag. 



6. B. RETicosuM. — The Reticulated Buccinum, pi. XXXII. 

 fig. 15. 



Buccinum reticosum. Sowerby, Min. Conch. II. p. 17, 

 pi. 110, fig. 2. Fleming, Brit. An. p. 344. 



Shell oblong-ovate ; spire short, consisting of six volutions 

 abruptly tapering to a point ; outer surface strongly reticula- 

 ted with longitudinal and transverse strife ; aperture short, 

 somewhat ovate, contracted above, and with a recurved sinus 

 below ; columella smooth, and broadly reflected on the body ; 

 outer lip even, toothed and striated within ; the greatest 

 width of the shell only half its length. 



Found in the Crag at Holywell. 



7. B. GLOBULARE. — The Globular Buccinum, pi. XXXII. 

 fig. 16. 



Buccinum globulare. Phillips, Geo. of Yorkshire, II. 

 p. 230, pi. 16, fig. 15. 



Shell subglobular, consisting of six much inflated, well 

 defined volutions ; spire small in proportion to the size of the 

 body, and terminating in an obtuse apex, with wide-set, 

 nearly obsolete spiral striae ; aperture subrotund ; columella 

 with a slight notch near its centre ; outer lip plain. 



Found at Bolland, Queen's County, Ireland. 



8. B. GLABRATUM. — The Smooth Buccinum, pi. XXXII. 

 fig. 19. 



Eburna glabrata. Parkinson, Organic Remains, III. 

 p. 59, pi. 5, fig. 25. 



Shell ovate, tumid, smooth ; body very large ; spire very 

 small, consisting of three rounded volutions, terminating in 



an obtuse apex ; aperture oblong-ovate, narrowed above ; 

 columella thickened and glabrous ; outer lip thin, and 

 plain at the margin ; beak short, with a few indistinct 

 plications. 



Found in the Crag, Essex. 



9. B. Dalei.— Dale's Buccinum, pi. XXXII. fig. 26, 27. 

 Buccinum Dalei. Sowerby, Min. Conch. V. p. 139, 



pi. 486, fig. 1, 2. 



Shell ovate, thick, smooth, sometimes with indistinct sulci 

 on the back, near the outer lip ; spire short, consisting of 

 four inflated sulcated volutions, well defined by a deep 

 suture, and terminating in an obtuse apex ; aperture ovate, 

 contracted above ; columella rather broad, spreading on the 

 body, and somewhat recurved at the edge ; outer lip plain on 

 the margin ; canal very short. 



Found in the Crag, Suffolk. 



There are two varieties of this fossil, — a, ventricose, and 

 but seldom sulcated, as in our figure ; (3 elongated, and 

 more or less sulcated. 



10. B. labiatum. — The Thick Lipped Buccinum, 

 pi. XXXII. fig. 22, 23. 



Buccinum labiatum, Sowerby, Min. Cunch. V. p. 11, 

 pi. 412, fig. 1, 2. 



Shell acuminated, with twelve or thirteen long, curved, 

 prominent ribs, crossed by numerous strong elevated, alter- 

 nately large and small striae ; spire consisting of about six 

 broad, inflated volutions, which are slightly concave above, 

 and terminating in an acute apex ; body longer than the 

 spire ; aperture oblong, a little angular above ; columella 

 smooth ; beak wide, open, and twisted ; outer lip thin, and 

 acute at the edge, and somewhat expanded, and incurved in 

 the centre, and internally striated. 



Found in the upper Marine formation, Colwell Bay, Isle 

 of Wight ; Plumsted ; and on the Hampshire coast. 



11. B. ELONGATUM. — The Elongated Buccinum, 

 pi. XXXn. fig. 21. 



Buccinum elongatum. Sowerby, Min. Conch. II. p. 15, 

 pi. 110, fig. 1. Fleming, Brit. An. p. 344. 



Shell considerably elongated, more than twice its greatest 

 diameter ; consisting of seven or eight somewhat inflated 

 volutions, which are separated by a well marked suture ; the 

 external surface traversed by longitudinal rib.s, which are 

 most conspicuous on the spire and higher region of the body, 

 where they are more undulous than the ribs ; the whole shell 

 covered with strong, regular, transverse striae, which do not 

 cross the ribs upon the spire, but become obsolete below ; 

 aperture oval, not half the length of the shell, with a 

 short, recurved sinus, and slightly angulai- above ; outer lip 

 even on the margin, with obscure crenulations internally ; 

 pillar lip smooth, and thickest at the base. 



Discovered in the Walton le Stoken Crag-pits, Essex. 



12. B. latus. — The Broad Buccinum, pi. XXXII. 

 fig. 29. 



Buccinum latus. Sowerby, Min Conch. I. p. 80, pi. 35, 

 lower left hand figure. 



Shell oblong-ovate, consisting of five or six somewhat 

 inflated volutions ; spire short, about a third the length of the 

 shell, and terminating in an acute apex ; surface even, covered 

 with transverse, alternately large and small linear striae ; 

 upper portion of each volution, with slightly oblique undula- 

 tions ; aperture oblong-ovate ; columella smooth, broadest 

 above ; outer lip even, entire and smooth on the edge, and 



