Organisms

Mollusca

A phylum of the kingdom Metazoa. Mollusca have soft, unsegmented bodies with an anterior head, a dorsal visceral mass, and a ventral foot. Most are encased in a protective calcareous shell. It includes the classes GASTROPODA; BIVALVIA; CEPHALOPODA; Aplacophora; Scaphopoda; Polyplacophora; and Monoplacophora.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A phylum of the kingdom Metazoa. Mollusca have soft, unsegmented bodies with an anterior head, a dorsal visceral mass, and a ventral foot. Most are encased in a protective calcareous shell. It includes the classes GASTROPODA; BIVALVIA; CEPHALOPODA; Aplacophora; Scaphopoda; Polyplacophora; and Monoplacophora.

MeSH Record

Classification

Broader headings

Narrower headings

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MeSH Record

See Also

MeSH Record

Synonyms

5 entry terms
  • Molluscs
  • Mollusks
  • Mollusc
  • Molluscas
  • Mollusk

MeSH Record

Aspects Covered

18 allowable subheadings

Indexed with the subheadings anatomy & histology, chemistry, classification, cytology, drug effects, embryology, enzymology, genetics, growth & development, immunology, metabolism, microbiology, parasitology, pathogenicity, physiology, radiation effects, ultrastructure, virology.

MeSH Record

Indexing Annotation

as animal & food; IM; general or unspecified; prefer specifics; as food, coordinate IM with SHELLFISH (IM)

MeSH Hierarchy

Tree Number

  1. B01w.050w.500w.644w

AMA Style

References

  1. National Library of Medicine. Mollusca. Medical Subject Headings (MeSH). 2026. Unique ID D008974. http://id.nlm.nih.gov/mesh/2026/D008974
  2. Mollusca. In: Wikipedia. https://en.wikipedia.org/wiki/Mollusca
  3. Mollusca. In: Wikidata. https://www.wikidata.org/wiki/Q25326