Deepwater sculpin
species of fish
The deepwater sculpin (Myoxocephalus thompsonii) is a species of freshwater fish in the family Cottidae of order Scorpaeniformes. It is a glacial relict, native to a limited number of deep, cold lakes in Canada and the United States.
Taxonomy
The deepwater sculpin was first described in 1851 by Charles Frédéric Girard under the name Triglopsis thompsonii. The description was based on specimens obtained by Spencer Fullerton Baird for the Smithsonian Institution from the stomachs of burbot (Lota lota) caught by anglers on Lake Ontario. The name Triglopsis referred to its resemblance to the piper gurnard (Trigla lyra).
Etymology
The specific epithet honored fellow naturalist Rev. Zadock Thompson of Burlington, Vermont.
The similarity between this species and the fourhorn sculpin (Myoxocephalus quadricornis) led to some taxonomic discussion. Some authors considered it a subspecies (Myoxocephalus quadricornis thompsonii), while other authors maintained it as a species within the same genus (Myoxocephalus thompsonii). Mitochondrial DNA analysis was able to establish that the two species were distinct while providing additional support for the proposal that the deepwater sculpin evolved from the fourhorn sculpin during the early Pleistocene era.
The public source identifies “Deepwater sculpin” as species of fish. This brief keeps that definition visible, then builds a research path around Deepwater, sculpin and species.
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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 6, 2026. The linked authority identifier is Q2131245. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1851.
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 “Deepwater sculpin” 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.