o 



84 



Hydatis. Bulla Hydatis. Vignette 1. f. 1. 2. — animal's gizzard, 3, 4.r'. 



p. 217. 



Cylindracea. Bulla cylindrlca. Don. Br. Shells, iv. t. 120. f. 2. 



p. 221. 



It is unfortunate, that this fliell, which was properly 



firfl; named by Mr. Pennant, and we believe has hither- 

 to only been noticed as Britijli, (hould have been fo 

 confounded ; efpecially, as the figure given in the Britijlc 

 Zoology is very expreffive. 



Da Costa firfl led to thefe errors, by making it the 

 Valuta pallida of Linn.eus, not knowing the fhel!. 

 Donovan, following T>\ Costa, fell into the fame 

 error; but afterwards corre^led his miflake, by figuring 

 the true cylindracea of Pennant, and by acknowledg- 

 ing, that it more clearly correfponds with that fl^^ell than 

 the V. pallida: unfortunately, however, this author has 

 referred to Bulla cylindrica of Gmelin^, a fppcies total 

 ly different, and not the leafl allied to it, if we may 

 judge from the figure referred to by that author, in Fa- 

 vanne, Chemnitz, and Gualtieri: nor does he 

 quote the Britijk Zoology. 



Do6lor Pulteney was not aware, or rather, did not 

 rccoUetlj that the name of cylindrica was preoccupied 

 for a very difi'erent fpecies of Bulla, or certainly he 

 vould not have recorded it by that name, and thereby 

 have continued perplexity; but he feems to have been 

 •induced to do fo, from its being fo called in the Mufeum 



Port- 



