( 35 ) 



3. ' ClAvaCElla. Lam. 



Foss. 



Tube attenuated and 

 open anteriorly, termina- 

 ted at the other end by an 

 oval club, compressed, 

 armed with spiniform 

 tubes. Club presenting 

 one valve enchased into 

 the side, and the other 

 free in the tube. (1) 

 Fig. 131. 



4. FistulanA. Lam. M. 



Tube swelled and clo- 

 sed posteriorly, attenuated 

 towards the anterior ex- 

 tremity, opening at the 

 top and containing a free, 

 equivalved, bivalved, ga- 

 ping shell. (2) Fig. 125. 



5. Sept aria. Lam. M. 



Tube very long, insen- 

 sibly attenuated towards 

 the anterior part, and di- 

 vided interiorly by arched 

 cells, mostly incomplete ; 

 shell unknown, but sup- 

 posed to be bivalved. (3) 

 Fig. 122. 



6. Teredina. Lam. Foss. 



Tube cylindrical, pos- 

 terior extremity closed, 

 shewing the two valves of 

 the shell; anterior end 

 open. (4) Fig. 124. 



(1) These are only known in the fossil state, and are found at Grigndn and in 

 Italy. 



(2) They live in wood, sand stones, and in the shells which they have pierced ; 

 the valves of certain species resemble Modiolce. They are found in the Indian 

 Ocean; and, in a fossil state, at Grignon, Beynes, Courtagnon, and Sienna, 



. (3) In the sands of the Indian Ocean, 



(4) At Courtagnon, Plaiwnce* 



c 2 



