CACrown ArchivesThe cinema collection
EN/FR
Search
Menu
Research dossier · Science & Nature

Theodoxus numidicus

species of mollusc

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 revisionMay 31, 2026
Entity authorityQ933752 ↗
Source-derived summary

Theodoxus numidicus is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Neritidae, the nerites.

Distribution

This species is found in Algeria and Morocco. The type locality is Oran, north-western Algeria.

Description

The length of the shell is 7 mm.

References

Brown D.S. (1994). Freshwater snails of Africa and their medical importance, 2nd edition. London: Taylor and Francis, 607 p

External links

Récluz, C. A. (1841). Description de quelques nouvelles espèces de Nérites vivantes. Revue Zoologique, par la Société Cuvierienne.

Editorial summary

“Theodoxus numidicus” enters the record as species of mollusc. Crown Archives preserves that source wording while asking what Theodoxus, numidicus 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 lead gives the account dated anchors—1994, 1841—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Theodoxus, numidicus and species.
Editorial analysis

Why this record matters

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

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 31, 2026. The linked authority identifier is Q933752. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1994 and 1841.

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.

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 “Theodoxus numidicus”, its source revision and the description used here.
  2. Expand the search: follow Theodoxus numidicus primary sources, Theodoxus numidicus archive and Theodoxus 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 “Theodoxus numidicus”?
  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 “Theodoxus numidicus” 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.