pimelepterus

from The Century Dictionary.

• noun The typical genus of Pimelepteridæ, having the skin and scales encroaching on the dorsal and anal fins, which are consequently thickened, whence the name. These fishes are partly herbivorous, and the species are numerous in all warm seas. P. (or Cyphosus) bosci extends from the Isthmus of Panama along the Atlantic coast as far north as Massachusetts.