THE BERNACLES. 329 



Chambered, or pearly nautilus Common, ami goose bernaclea. 



The chambered, or pearly nautilus, belongs to 

 a different tribe, and bears very little resemblance 

 to the paper nautilus, (which, as before remarked, 

 is the real nautilus of the ancients,) either in its 

 construction or habits. This animal, if seen de- 

 tached from its shell, might be mistaken for an 

 eight-armed cuttle fish, the principal difference 

 consisting only in the shape of those arms that 

 are used as sails. 



BERNJCLES. 



THE two shells of this tribe that are best 

 known are the common bernacle, which is found 

 adhering in vast numbers to rocks, and to oysters 

 and other shell fish, and the goose bernacle, so 

 well known from the fables, of its producing the 

 bernacle goose. (See vol. iii. p. 230.) The ani- 

 mals contained in these shells, (which are fixed 

 at the base, and consist of more than two unequal 

 and erect valves,) as well as in those of all the 

 other species, have twenty-four claws or tenla- 

 cula, all joined in pairs near the bottom, and 

 inserted in one common base. The twelve long- 

 est stand somewhat erect and arched, arising 

 from the back part of the animal; they appear 

 like so many yellow curled feathers, clear, horny, 

 and articulated ; every joint is furnished with 

 two rows of hair on the concave side. They are 



VOL. v. NO. 37. 2 T 



