Taxa

Nematoda

Phylum

Citation Formats

General Reference

Nature Atlas. "Nematoda." Accessed September 8, 2026. https://nature.interactiveatlas.org/taxa/phylum-nematoda.

APA Style

Nature Atlas. (n.d.). Nematoda. Retrieved September 8, 2026, from https://nature.interactiveatlas.org/taxa/phylum-nematoda

BibTeX

@misc{natureatlas-nematoda,
  author = {Nature Atlas},
  title = {Nematoda},
  year = {2026},
  url = {https://nature.interactiveatlas.org/taxa/phylum-nematoda},
  note = {Accessed September 8, 2026}
}

The roundworms: slender, unsegmented worms with a tough outer cuticle and a body cavity, among the most numerous animals on Earth by individual count even though relatively few species have been formally described. Nematoda includes free-living soil and marine species alongside major agricultural and medical parasites.

Facts

Disputed

Member Species/Taxa Count

25,000 1

Approximate described-species (or, for a genus, described-taxon) count; continually revised as species are newly described, reclassified or synonymized.

Taxonomic Rank

Phylum / Division 1

Scientific Name

Nematoda 1

Cross-Tradition Connections

Child Taxon Of

Animalia

Source Catalogue of Life

Sources

1. Catalogue of Life

Species 2000 & ITIS Catalogue of LifeView the Source

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