408 MURlCIDJi. 



B. Dalei, J. Sowerby. 



Polished white, smooth to the eye, never with folds ; body 

 half as long again as the spire. 



Plate CIX. fig. 1, 2. 



Bitcciniim Dalei, (Fossil) J. Sow. Min. Conch, pi. 486, f. 1, 2. — S. Wood, 

 Crag Moll. p. 34, pi. 3, f. 10. 

 " ovum, TuRTON, Zoolog. Joum, vol. ii. p. 366, pi. 13, f. .0. — Fleming, 

 Brit. Anim. p. 343. — Brit. Marino Conch, p. 215. — Bkown, 

 Illust. Conch. G. B. p. 4, pi. 4, f. 15.— King, Ann. Nat. 

 Hist. vol. xix. p. 340. — Alder, Cat. Moll. Northumb. and 

 Durh. p. 67. — Blainv. Faunc Franf . Moll. p. 172. — Reeve, 

 Conch. Icon. vol. iii. Buccin. pi. 4, f. '25. 

 „ fusiforme, Kiener, Coq. Vivant. Buccin. p. 5, pi. 5, f. 12 ; transl. 

 Storer, p. 6 (probably). 

 Halia Fleminf/iana, Macgilliv. Moll. Aberd. p. 189, copied, Brown, Illust. 

 Couch. G. B. p. 132 (Young, teste Jeffreys, from 

 type). 

 Tritouium ovum, Middend. Malacoz. Rossica, pt. 2, p. 174, pi. 4, f, f. 12, and 

 pi. 6, f. 1 to 4 ? 



This shell, whose form is rather obliquely subovate, 

 being somewhat rounded and moderately broad below, 

 and tapering rather quickly above to a very blunt apex, is 

 not so strong as most of its genus, a little translucent, very 

 glossy, and of an uniform ivory white that is obscurely 

 stained with pale yellowish streaks at the stages of 

 increase. The epidermis has a greenish hue (King). 

 Not the slightest vestiges of any folds are perceptible be- 

 neath the very fine and but little oblique suture ; but the 

 surface, although smooth to the eye, is seen, when closely 

 examined, to be most obscurely striated with minute 

 spiral lines. The spire, the apical coils of which are sym- 

 metrical and greatly depressed, only fills about one-third of 

 the dorsal length ; it is composed of five simply but much 

 rounded quickly increasing volutions that taper above, 

 whereof the penult is not much more than half as high 

 as it is wide. The basal declination of the body-whorl, 



