CalCOFI.io CalCOFI.io open data ecosystem

Annelida

segmented worms

Phylumaccepted · checked 2026-08-05WoRMS 882ITIS 64357key worms:882
i

2026-08-05: itis_id 64357 via WoRMS external link

Annelids, also known as segmented worms, are animals that comprise the phylum Annelida. The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches.W CalCOFI holds 5,607 observations of it in 2 datasets between 1951 and 2026, across 2 taxa under it.R

5,607
observations
6,487
records
1951–2026
years
2
datasets
0
species under it
Photograph of Annelida
Photo · Ken-ichi Ueda · CC BY 4.0 · inat

Observed in nothing keyed to it directly

Every observation under it belongs to one of the taxa under it — 1 taxon, in the fold below.

Ways inExplorerdb-queryRPythonThis page as JSON

Code and endpoints R · Python · JSON
R
library(calcofi4r)
con <- cc_get_db()                      # the promoted release
tbl(con, "obs_bio") |> filter(taxon_key == "worms:882")

Read from taxa.json of release v2026.10.19, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

How big is it not on record

Not on record: no authority the fetcher reads carries a length for this taxon (a genus page could show the range of its species).

Under it 1 taxon
Lineage 2 ranks · Biota to Animalia
Credits silhouette · photo · text
Elsewhere Wikidata · iNaturalist · GBIF

WikidataiNaturalistGBIF

The same organism on the services the faces were fetched from; the authorities' own pages are the ids in the head.

Cite the release, v2026.10.19

Cite the release, v2026.10.19; each dataset's own citation, licence and DOI are on its page. How to cite ↗