CACrown ArchivesThe cinema collection
Menu
Research dossier · Science & Nature

Pseudaxine trachuri

species of worm

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 revisionApr 20, 2026
Entity authorityQ1914076 ↗
Source-derived summary

Pseudaxine trachuri is a species of monogenean, parasitic on the gills of a marine fish. It belongs to the family Gastrocotylidae.

Systematics

Pseudaxine trachuri was first described and illustrated based on specimens from the gills of the Atlantic horse mackerel Trachurus trachurus (Carangidae) (referred to as Caranx trachurus in the original description) off Genova, Italy. Pseudaxine trachuri was designated the type species of the genus.

Morphology

P. trachuri has the general morphology of all species of Pseudaxine, with a triangular body and an anterior extremity constricted at the level of buccal suckers in some species. The body comprises an anterior part which contains most organs and a posterior part called the haptor. The haptor is oblique and unilateral, and bears numerous clamps arranged in a single row. The clamps of the haptor attach the animal to the gill of the fish. The terminal lappet is present and bears two pairs of anchors. Also, two buccal suckers occur at the anterior extremity.

Editorial summary

“Pseudaxine trachuri” enters the record as species of worm. Crown Archives preserves that source wording while asking what Pseudaxine, trachuri 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 161-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 Pseudaxine, trachuri and species.
Editorial analysis

Why this record matters

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

Evidence profile

Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Apr 20, 2026. The linked authority identifier is Q1914076. 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 “Pseudaxine trachuri”, its source revision and the description used here.
  2. Expand the search: follow Pseudaxine trachuri primary sources, Pseudaxine trachuri archive and Pseudaxine 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 “Pseudaxine trachuri”?
  2. Has classification or technical consensus changed since the cited source?
  3. Which observation, specimen, dataset or publication supports the account?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Pseudaxine trachuri” 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.