Linophryne, the bearded seadevils, is a genus of marine ray-finned fishes belonging to the family Linophrynidae, the leftvents.

Linophryne was first proposed as a monospecific genus in 1886 by the Norwegian zoologist Robert Collett when he described L. lucifer as a new species.

The prefix may be a reference to the sac like mouth hanging off the trunk, which in the holotype contained a lanternfish, like a fisherman's keep net.

Its use may date as far back as Aristotle and Cicero, who referred to anglerfishes as "fishing-frogs" and "sea-frogs," respectively, possibly because of their resemblance to frogs and toads.

These include the possession of a hyoid barbel, well-developed spines on the sphenotic bone and the preoperculum and a single nearly oval bulb on the esca with a short projection in its middle and has no appendages as well as a low number of fin rays in the dorsal and anal fins.