One common fishnet-hunting false fish is the armfish. The fifth and lowest skull of these odd-looking animals is set back a ways (in most species about halfway down the body, some less, some more) and modified into a long, complex, grasping appendage. Sometimes the fourth skull is also used for grasping and coordinates with the fifth. Armfish will also capture mace snakes, not good for food, but a menace that no community wants around.
Written by Daniel Noe, ChampionOfTheGalaxy.com