509 



** CONTORTED, IRREGULAR. 



12. 



Serpula vermicularis. Lin. Syji. p. 1266. Vf.rmicularis, 



Gmel. SyJl. p. 3743. 



Br. Zool No. 159. 



Ti^ri. Lin. iv. p. 605. 



DaCoJia. p. IS. t. 2. (.5. 

 Serpula intricata. Lin. SyJi. p. 1265. 



Gwel. SyJl. p. 3741. 



Br. Zool. t.9 ] . f. 1 58. (fig.niifplaced) 



'Lurt. Lin. iv. p. 603. 

 , Martini Conch, t. iii. f. 24. A ? 



S. with a cylindric, white fiiell, gradually tapering, 

 generally terminating in a fine point, and wrinkled 

 tranfverfely. 



Nothing has puzzled the conchologifl: more than the 

 four fpecies (jf Linncean Serpulcz under the denomination 

 olVermicularis, intricata, triquetra, and contortuplicata. 



We have collected a vafl quantity of thefe Serpidce 

 fingle and grooped, angulated and cylindric, with all 

 the intermediate gradations, which connecl them fo 

 nearly, that were it not for the animals, we (hould have 

 been induced to have confidered them as one and the 

 farne fpecies : we have, however, by the animals more 

 than by the (hells, formed tliem into two fpecies: name- 

 ly, vermicularis and triquetra. 



This 



