Black seadevil
genus of fishes in the family Melanocetidae
Black seadevils are small, deep-sea lophiiform fish of the family Melanocetidae. The six known species are all within the genus Melanocetus. They are found in tropical to temperate waters of the Atlantic, Indian, and in the Pacific Oceans, as well as one other species endemic to the Ross Sea.
One of several anglerfish families, black seadevils are named for their intimidating appearance and dark skin. The humpback anglerfish (Melanocetus johnsonii) was featured on a 1995 cover of Time magazine and became a flagship species for deep sea fauna.
Taxonomy
The black seadevil family, Melanocetidae, was first proposed as a subfamily in 1878 by the American biologist Theodore Gill. The only genus in the family is Melanocetus, originally proposed as monospecific in 1864 by the German-born British herpetologist and ichthyologist Albert Günther when he described the humpback anglerfish (M. johnsonii). The type locality of M. johnsonii is off Madeira. The 5th edition of Fishes of the World classifies the family Melanocetidae within the sexually dimorphous suborder Ceratioidei of the anglerfish order Lophiiformes.
Both the black seadevil family name, Melanocetidae, and the genus name, Melanocetus, are a combination of melanos meaning "black" and cetus, which means a "large sea creature", typically used to refer to whales.
The public source identifies “Black seadevil” as genus of fishes in the family Melanocetidae. This brief keeps that definition visible, then builds a research path around Black, seadevil and genus.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Black seadevil”, the useful work is to connect “genus of fishes in the family Melanocetidae” to the records capable of establishing context and consequence.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Jul 30, 2026. The linked authority identifier is Q571546. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1995, 1878 and 1864.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Black seadevil” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.