224 



B. with a moderately ftrong, fub-cylindric, opaque 

 white (hell, wrinkled longitudinally : apex convoluted, 

 obtufe ; volutions four or five, very little produced : 

 aperture nearly the whole length of the (liell, narrow, 

 rather more compreffed in the middle, dilated at the bafe: 

 inner lip thickened, fmooth, white. 



Length two-tenths, rarely a quarter of an inch; breadth- 

 about half its length. 



We were firft favoured with this fpecies from Mr. Boys, 

 for the fliell figured by Mr. Walker, as above quoted; 

 and have fince found it in great abundance on the fhore 

 near Southampton ; rarely at Salcomb in DevonJIiirc : and 

 not uncommon about Laugharnc on the coaft o{ Caerviar- 

 thenjliire. 



In a recent flate it is frequently covered with a chefnut- 

 coloured epidermis. It was once fent to us for the Valuta 

 ■pallida; but from that fhell it is readily diflinguifhed by 

 being much fliorter, the volutions more deeply divided, 

 more obtufe, and in wantinjj Ihe effential charafter of a 

 Valuta, the plicated columella. It is, indeed, more nearly 

 allied to the lafl fpecies of Bulla, but differs not only in 

 being much larger, but in the produced volutions, and 

 the aperture not reaching quite to the top, as well as be- 

 ing defiitutc of the regular longitudinal ftriae on the upper 

 part of the fliell. 



B.with 



