JV 



Thofeof the ftnTile kind, are termed Balanus ; while the 

 pedunculated arc continued under their original title. 

 In the Oilrea, thofe which are aurited, are feparated 

 under the generic denomination of Peften ; and we have 

 alfo added a new genus next to the Serpula, for fuch as 

 bear feme affinity to that tribe, but do not come under 

 the Linnssan charafters of the genus, being indepen- 

 dent, and not affixed by the bafe to other bodies; which 

 we have called Vermiculum. Thefe lafl:, indeed, were 

 almoft wholly unknoM-n to Linn.eus, and are entirely 

 of the more minute kind. 



In the fpccies, as far as were known to that author, 

 we have alfo retained his trivial names, wherever they 

 could be clearly identified, except in a few inflances, 

 AV'here thofe of fom.e englifh authors were adopted, as 

 better known to the britifii conchologift ; or where we 

 had occafion to place them in different genera. 



It is not our intention to trace the hiftory of con- 

 chology from the earliefl writers on the fubjecl:, as we 

 have chiefly quoted thofe of more recent. date, fmce 

 that branch of philofophy has been better underflood. 



Amongft the foreign topical writers, Martini, 

 Chemnitz., Muller, Schroetep., andGuALTiERi 



{land 



