the Census for Marine Life shows a dragonfish that even has teeth on its tongue.

This undated handout photo provided by the Census for Marine Life shows a dragonfish that even has teeth on its tongue. They would be terrifying animals if they weren't the size of a banana.

This undated handout photo provided by the Census for Marine Life shows the Sargassum Fish (Histrio histrio), a member of the frogfish family (Antennariidae), a group of small, globular fishes with stalked, grasping, limb-like pectoral fins with small gill openings behind the base, a trapdoor-like mouth high on the head, and a "fishing lure" (formed by the first dorsal spine) on the snout. It typically lives in open waters in close association with floating Sargassum Weed (Sargassum natans and S. fluitans), but is frequently blown into nearshore and bay waters during storms. Although the Sargassum Fish is capable of swimming quite rapidly, it often crawls through the Sargassum Weed, using its pectoral fins like arms

Census of Antarctic Marine Life - in video!