522 



angulated ; margin in live fliells yellow. Diameter a- 

 bout half a line. 



This fpecies is not half fo common as the laft; but is 

 found in fand on feveral of our {hores. 



Oblokgum. V. with an oblong, oval, opaque, glolTy, white fhelL 



Tab. 14. f. 9, fomewhat compreffed; on one fide a fingle longitudinal 

 future, that feems to divide the fliell into two parts : on 

 the other fide, the middle compartment is furrounded by 

 a faint depreffion, that feparates it from the exterior one, 

 and is more elevated; aperture a little produced, oval; 



margin yellow, 



Length not half a line. 



In fand from Salcomb bay Devonjhire : rare. 



The five laft defcribed fpecies have fomewhat the ha- 

 bit of Nautili, though not regularly concamerated, oi 

 divided into chambers : they are contracted at the angu- 

 lated turns, which form the fub-volutions. 



** 



^^ BOTTLE-SHAPED, NOT CONVOLUTED. 



Lactecm. 



Serpula laClea. Turi. Lin. iv. p. 609. 



Adams Microfc. t. 14. f. 4. 

 Serpula tenuis ovalis laevis. Walk. Min. Shells, f. 5. 



The 



