14 



If 



PECTEN NODOSUS. 



Tab. II, /^. 4. 



% SPECIFIC CHARACTER. 



Shell with strong radiating strisB^ ribs nine, thick, 

 with vesicular nodes. 



SYNONYM A. 



pECTEN NODOSUS, Lom. An. sans Vert. vol. 6. part 



!,/>. 170. 

 OsTREA NODOSA. GmeUn. "*r" f 

 Pecten. Enc. Method, pi. 210, fig. 2. '^iMf^ 



Cabinet of the Acad. Nat. Sciences, No. 1153. 



OBSERVATIONS. 



f The colour of this shell is generally reddish brown 

 or orange, and Lamarck describes a variety of a small 

 size, in which most of the nodules are white like small 

 pearls. The nodes or vesicles of the ribs are, in its 

 young state, entire, but they open as the shell in- 

 creases in size. 



This well known and distinctly characterized spe- 

 cies inhabits the African, South American and West 

 Indian seas ; and upon our own coast it occurs only 

 at the southern extremity of East Florida, where it 

 was found by Mr. Peale. 



The figure is from a beautiful, though small speci- 

 men, in the collection of Mr. Thomas Rogers. 



