'Slithis' (1978) – Stephen Traxler.

No fiendishly fission formed, sinisterly scaled screen monster has ever slayed quite so splendidly as fearfully foamy, deep sea sadist Slithis! Luridly lurching out of the suppurating canal detritus like some slitherously spawned, hungrily skin-shredding savage, the degenerated Venice Beach denizens are all grimly destined for a moist despicably Slithic Doom! Since this murderously mutated, bloodthirsty bipedal behemoth has morbid appetites infinities beyond your wildest imaginings! Half man, half fish, and fully fiendish! Slithis is 100% pure terror!!! This monstrously macabre manifestation of grossly mutated meat is one of the more anthropologically antisocial, ecologically evangelising 1970s schlockers! 'Slithis' remains a global warning for all mankind, since our rabidly toxic, incautiously consumerist culture has fatefully self-initiated its very own sewer-spawned apocalypse!!!!! And Creature feature impresario Stephen Traxler's perversely prescient, atomically astringent anti-hero 'Slithis' is far more than we callow celluloid sinners deserve! In this fright-lite, miserably mediocre, garbage-garlended epoch, the vengefully cruel cryptid 'Slithis' is still righteously 'taking out' the trash! 'Take care, it's gill or be killed in the 1970s silt-suckingly slimy sludge-fest 'Slithis!'