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Vacerrena nana

species of mollusc

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMay 19, 2026
Entity authorityQ7260049 ↗
Source-derived summary

Vacerrena nana is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.

Description

The length of the shell attains 2 mm, the width 1¼ mm, the height 2 mm.

The rather solid shel is elevated-conic. It is sculptured with 15 radiating ribs, the front ones wider apart. The apex is acute and strongly recurved. The aperture is oval.

Distribution

This marine species occurs in the Red Sea.

References

Kilburn, R. N. (1978). The Emarginulinae (Mollusca: Gastropoda: Fissurellidae) of southern Africa and Mozambique. Annals of the Natal Museum.

Editorial summary

Begin with the source’s own compact description: “Vacerrena nana” is species of mollusc. The dossier treats that line as a proposition to test through Vacerrena, nana 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 lead gives the account dated anchors—1978—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Vacerrena, nana and species is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “species of mollusc” 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

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 19, 2026. The linked authority identifier is Q7260049. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1978.

Critical limits

A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. 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 “Vacerrena nana”, its source revision and the description used here.
  2. Expand the search: follow Vacerrena nana primary sources, Vacerrena nana archive and Vacerrena 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 “Vacerrena nana”?
  2. Which observation, specimen, dataset or publication supports the account?
  3. Is the terminology current, historical or disputed?
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Source & attribution

This entry incorporates text from “Vacerrena nana” 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.