dialphantom: If you got a buck for every organism (plant/animal - fossil record to present) with the species name 'histrix' you'd be a rich man. Just off the top of my head, fish-wise, there is:
Diodon histrix - Porcupine fish
Potamotrygon histrix - Histrix stingray
Hippocampus histrix - Thorny seahorse
and, of course, the monster pleco posted above.
Check your facts before you post.