128 
17. 
obtusa. 
18. 
retusa. 
Dr. Matown’s and Mr. RACKETT’S 
Falmouth, Teignmouth, and Biddeford, by Mr. Mon- 
tagu; near Ilfracombe, Devon, by the Rev. T.-Rackett. 
This species must not be confounded with B. cylin- 
drica of Gmelin. 
B. testa subcylindrica, spira prominula. 
Walker Test. Min. Rar. t. 3. f. 62. per peram. 
Montagu Test. Brit. P. 223, t. 7. f.'S. bene. 
Halitat in mari. 
Testa ad + poll. longa, + lata, alba, opaca, versus spiram angustior. _Aper- 
tura linearis, latior ad basin. 
First noticed by Mr. Boys, at Sandwich. Found in 
abundance near Southampton; at Llaugharne, Caer- 
marthenshire ; and sparingly at Salcombe, Devon, by 
Mr. Montagu. We have received it from Chester, and 
have found it at Poole and Weymouth, Dorset. 
B. testa subcylindrica, spira retuso-umbilicata. 
Adams in Act. Soc. Linn. 5. t. 1. f. 1, 9. B. truncata. 
Montagu Test. Brit. p. 223. t. 7. f- 5. B. truncata. 
Pulteney in Hutch. Dorset. t. 18. J 13. 
Habitat in mari. 
Testa 1 poll. longa, alba, versus apicem longitudinaliter striata, medio 
coarctata. Apex truncatus.. 
Discovered by Mr. Adams, near Pembroke. Eos 
by Mr. Montagu, at Falmouth, in Cornwall; in Sal- 
tombe Bay, Devon; and at Weymouth, Dorset. 
We have not retained the specific name of truncata, 
= i given to this shell by Mr. Adams, on account of its 
g been pre-occupied by Gmelin for a very different 
species, originally described D peee ur in the 
Rudolstadt Bas f 
Se “49. umbili- 
