Limacoidei
infraorder of gastropods

The Limacoidei is a taxonomic infraorder of air-breathing land snails, semislugs and slugs, terrestrial pulmonate gastropod molluscs in the suborder Helicina.
Distribution
The original ancestral area of limacoid families is thought to be the Palearctic region and south-eastern Asia.
Etymology
The word "limacoid" means "resembling a slug".
Typography of the name
In 1998, for the same taxon, Hausdorf used the name Limacoidea sensu lato.
The name of this taxon, the limacoid clade, was written by Bouchet & Rocroi (2005) with quotation marks like this: "limacoid clade".
Other typographical variants are used by various other authors, for example capitalizing and restricting the use of the quote marks thus: "Limacoid" clade and "Limacoid clade".
2003 taxonomy by Schileyko
The study of A. Schileyko in this group, published in parts 8–11 of his monograph between 2002 and 2003, did not discuss the system that Hausdorf had proposed. However, Schileyko refers to the work of Hausdorf, where this system was proposed, in part 10 (2003) on p. 1390. So he was acquainted with this system before 2003.
Begin with the source’s own compact description: “Limacoidei” is infraorder of gastropods. The dossier treats that line as a proposition to test through Limacoidei, infraorder and gastropods, not as a finished interpretation.
Why this record matters
The phrase “infraorder of gastropods” 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.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Apr 19, 2026. The linked authority identifier is Q57262978. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1998, 2005, 2003 and 2002.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Limacoidei”, its source revision and the description used here.
- Expand the search: follow Limacoidei primary sources, Limacoidei archive and Limacoidei research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Limacoidei”?
- Which institution is responsible for the underlying evidence?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Limacoidei” 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.