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Pyrrhulina australis

species of fish

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMay 21, 2026
Entity authorityQ5594754 ↗
Source-derived summary

Pyrrhulina australis is a species of freshwater ray-finned fish belonging to the family Lebiasinidae, which includes the pencilfishes, splash tetras and related fishes. The fishes in this genus are found in South America, where they occur in the La Plata and Paraguay River basins north into the Guaporé River basin.

Size

This species reaches a length of 5.0 cm (2.0 in).

Etymology

The fish's name is Latin for "southern", referring to its occurrence, since it is described from Paraguay, south of the "evidently closely related" P. semifasciata that inhabits the Amazon River basin.

Editorial summary

Begin with the source’s own compact description: “Pyrrhulina australis” is species of fish. The dossier treats that line as a proposition to test through Pyrrhulina, australis and species, not as a finished interpretation.

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 93-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. For this dossier, Pyrrhulina, australis and species is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “species of fish” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

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 May 21, 2026. The linked authority identifier is Q5594754. None of the 0 selected statements returned an explicit reference.

Critical limits

Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. 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.

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

Three-step research path

  1. Establish the record: confirm the title “Pyrrhulina australis”, its source revision and the description used here.
  2. Expand the search: follow Pyrrhulina australis primary sources, Pyrrhulina australis archive and Pyrrhulina 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 “Pyrrhulina australis”?
  2. Is the terminology current, historical or disputed?
  3. Which observation, specimen, dataset or publication supports the account?
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Source & attribution

This entry incorporates text from “Pyrrhulina australis” 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.