No. 34 SERPULA. 



Worm Shell. Inhabitant a Terebella. 



Shell univalve, tubular and adhering, often separated internally by divisions 

 at uncertain distances. Gaultieri includes the rare Turbo Scalaris among the 

 Vermiculi. He observes, the spires of the shells are not produced from, or 

 supported by a pillar, as is constantly the case in turbinated shells; but pos- 

 sesses, on the contrary, the true character of the spiral worm shells. But, 

 although we think that this has much truth, yet we should carefully avoid any 

 useless innovation. 



Like the last shell or genus, these are confined to the ocean, and are often 

 found, in considerable numbers, attached to other shells, stones and plants. 



Serpula is derived from serpo, to creep; and has three divisions. 



DIVISION II. Detached. 



