Fourspine sculpin
species of fish
The fourspine sculpin (Rheopresbe kazika) is a species of freshwater ray-finned fish belonging to the family Cottidae, the typical sculpins. It is the only member of the genus Rheopresbe. It is endemic to Japan. It reaches a maximum length of 30 cm (12 in).
Taxonomy
The fourspine sculpin was first formally described in 1904 by the American ichthyologists David Starr Jordan and Edwin Chapin Starks with its type locality given as Niigata in Japan. This species is placed in the monospecific genus Rheopresbe by some authorities, as molecular analyses indicated that this species was a sister taxon to Trachidermus fasciatus, another catadromous Japanese sculpin. This taxonomy is followed by Eschmeyer's Catalog of Fishes. The specific name kazika is a Japanese word for river sculpins.
“Fourspine sculpin” enters the record as species of fish. Crown Archives preserves that source wording while asking what Fourspine, sculpin and species can confirm, complicate or overturn.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated May 21, 2026. The linked authority identifier is Q1956600. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1904.
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This entry incorporates text from “Fourspine 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.