CACrown ArchivesThe cinema collection
Menu
Research dossier · Science & Nature

Blacktail redhorse

species of fish

Specimen drawers, botanical folios and brass scientific instruments under study light
Science and natureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMar 30, 2026
Entity authorityQ3763436 ↗
Source-derived summary

The blacktail redhorse (Moxostoma poecilurum) is a species of ray-finned fish in the genus Moxostoma. The blacktail redhorse occupies North America, being located throughout Mississippi River tributaries on the former Mississippi Embayment, ranging from Southern Kentucky to Galveston Bay in Texas.

Description

Like other Moxostoma, the blacktail redhorse has a long and cylindrical body. It is gold to bronze on the upper half with a silver-green iridescence, and is a silver yellow to white on the lower half. The caudal and lower fins are red, with a black stripe on the lower half of the forked caudal fin, which is normally larger than the upper half. The edge of the dorsal fin is usually concave, and the fin is a dusky grey on the lower half and more red on the upper half.

There are normally 41 to 44 lateral scales, and 12 to 13 dorsal rays.

The fish has a maximum total length of 51 cm (20 in), but is normally has a total length of 25 cm (10 in) to 41 cm (16 in).

Distribution and habitat

Moxostoma poecilurum is found throughout Mississippi River tributaries on the former Mississippi Embayment running from Southern Kentucky to Southern Arkansas, south to Louisiana. It can also be found in gulf slope drainages from the Choctawhatchee River in Alabama and Florida to Galveston Bay in Texas.

Editorial summary

“Blacktail redhorse” enters the record as species of fish. Crown Archives preserves that source wording while asking what Blacktail, redhorse and species can confirm, complicate or overturn.

Editorial reviewUseful for establishing the present vocabulary of the subject while preserving a route back to the evidence on which that vocabulary rests. The current 224-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Blacktail, redhorse and species.
Editorial analysis

Why this record matters

“Blacktail redhorse” is worth following because a concise public description often conceals a longer documentary argument. Here, Blacktail, redhorse and species provides the most credible route into that argument.

Evidence profile

Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Mar 30, 2026. The linked authority identifier is Q3763436. None of the 0 selected statements returned an explicit reference.

Critical limits

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.

How to read it

Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.

Best used for
  • Current terminology
  • Classification context
  • Finding cited technical literature
Verify next

Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “Blacktail redhorse”, its source revision and the description used here.
  2. Expand the search: follow Blacktail redhorse primary sources, Blacktail redhorse archive and Blacktail research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Blacktail redhorse”?
  2. Is the terminology current, historical or disputed?
  3. Has classification or technical consensus changed since the cited source?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Blacktail redhorse” 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.