Ranella australasia
species of mollusc
Ranella australasia is a species of large predatory sea snail, a marine gastropod mollusk in the family Ranellidae, the triton snails, triton shells or tritons. This species is native to Australia and New Zealand where it is widespread, as well as Norfolk Island, Lord Howe Island, and the Kermadec Islands.
A closely related species, Ranella gemmifera, formerly known as Ranella australasia gemmifera, is native to South Africa.
References
Wilson, B. 1993. Australian Marine Shells. Prosobranch Gastropods. Kallaroo, Western Australia : Odyssey Publishing Vol. 1 408 pp.
Begin with the source’s own compact description: “Ranella australasia” is species of mollusc. The dossier treats that line as a proposition to test through Ranella, australasia and species, not as a finished interpretation.
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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.
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 Jul 14, 2026. The linked authority identifier is Q3173623. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1993.
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This entry incorporates text from “Ranella australasia” 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.