Not Rated | | Action, Adventure, Comedy
A marine biologist, a dolphin trainer, a research scientist, and a local sheriff try to hunt down a large sea monster, a shark/octopus hybrid, that is devouring swimmers and fishermen off a south Florida coast.
One of a cycle of 1970s and 1980s movies made after the box-office success of Jaws (1975). The films include that movie's three sequels, Jaws 2 (1978), Jaws 3-D (1983), and Jaws: The Revenge (1987), as well as: Orca (1977), Piranha (1978), Tentacles (1977), Killer Fish (1979), Barracuda (1978), Tintorera: Killer Shark (1977), Blood Beach (1980), Piranha II: The Spawning (1981), The Last Shark (1981), Up from the Depths (1979), Humanoids from the Deep (1980), Screamers (1979), Devil Fish (1984), and Mako: The Jaws of Death (1976).
Whatever it is, I wouldn't want to rub it the wrong way.
As has been pointed out, Doctor Bates mistakenly says fish evolved teeth 320 years ago, presumably meaning 320 million and describing the devil fish as a toothed species from this era. However, the monster onscreen has a mouth that most resembles the maw of the prehistoric fish Dunkleosteus which evolved before teeth. The massive serrations in its mouth are actually part of its jawbone. The monster's very similar "teeth" also appear to be part of the jaw, not separate attachments to it.
The "Devil Fish" version shows the title twice at the beginning; once just after the attack on the boat and once during the opening credits.