517 



GEN. XXXIV. 



VERMICULUM. 



Animal a TEREBELLAf 



SHELL, univalve, fhape various: not attached, or 

 adhering to other bodies. 



We have been induced to feparate the Linnxan clals 

 of Serpulce, not only from their dilTimilitude in ftruclure, 

 butbecaufe many of them do not come under the generic 

 charafter, (of being fixed to other bodies.) Thofe, 

 therefore, which are independant, or not attached to 

 other bodies, we have formed into a new genus, under 

 ihe x\t[^o{VcrwiciUum. Thefe, again, might with pro- 

 priety be divided into two diftinft genera ; thofe which 

 are convoluted, or fub-convoluted, and thofe which 

 are ftraight, and of a bottle fhape : the latter of which 

 Mr. Walker has very fignificantlv diftinguifhed by the 

 name of Lagena. The number of thefe, however, as 

 yet difcovered are inconfiderable, we (hall therefore only 

 rqake them into two divifioris of the fame genus. 



The 



