28 



FUSUS Lima. 



TAB. CCCCXXIIl.— Z^/^. 4. 



Spec. Char. Ovato-fusiform, pointed, carina- 

 ted ; upper edges of the whorls elevated 

 and pressed upon the spire ; carina? many, 

 acute, the central ones decussated by small 

 sharp costae ; lines of growth acute. 



XJpoN the upper parts of the whorls, the carinae are 

 mere striae decussated by the lines of growth ; in the 

 middle they are sharp, and so much elevated that they 

 almost form spines where they are intersected by the 

 small acute ribs ; upon the lower parts of the shell, they 

 are prominent, sharp and entire : in other respects this 

 agrees with the last species. 



We have met with but one specimen of this neat shell, 

 it came from Barton. 



Fusus rugosus of Lamarck is intermediate in form 

 between this and Fusus rugosus of Min. Conch, tab. 

 274, but quite distinct from either ; Lamarck has 

 erroneously quoted Brander's Murex porrectus, and we 

 have been accordingly misled ; of course Brander's 

 name must be restored. Lamarck's F. rugosus does not 

 occur in England. 



