98 



tity of Bulla rivalh as a diflinc:!: fpecies, having been fa- 

 voured with a fpecimen by the Rev. Mr. Rackett. 



It is faid to have been firfl difcovered in Hampjlme, by 

 Mr. James Hay, but neither tlie habitat nor a defcription of 

 the animal is mentioned, we may however realonably con- 

 clude it to be an aquatic. It will be feen by confulting 

 Tgjlacea Britaimkathat the animals inhabiting Bullafontinali's 

 and hypnorum are fo extremely difTimilar that all doubts mull 

 be removed from the moll determined fceptic; and it is to 

 be wilhed that with the fhell in queftion, as with all others of 

 fimilar affinity, the animal fliould be particularly attended to 

 as the heft and moft incontrovertible auxiliary of dillindlion. 



This appears to be common in the Weft Indies, growing 

 to double thefizeof the Britifli fpecimens, having received a 

 great many from that quarter. 



Truncata, Bulla retusa, Lin. Trans, viii. p. 128. 



p, 223, Pult, Hutch, Dorm, t. 18. f. 13. 



VOLUTA. 



