CalCOFI.io CalCOFI.io open data ecosystem

Multicrustacea

Superclassaccepted · checked 2026-08-05WoRMS 845959key worms:845959

The clade Multicrustacea constitutes the largest superclass of crustaceans, containing approximately four-fifths of all described non-hexapod crustacean species, including crabs, lobsters, crayfish, shrimp, krill, prawns, woodlice, barnacles, copepods, amphipods, mantis shrimp and others.W CalCOFI holds 146,547 observations of it in 6 datasets between 1951 and 2026, across 64 taxa under it.R

146,547
observations
157,560
records
1951–2026
years
6
datasets
40
species under it
Photograph of Multicrustacea
Photo · Gen C · CC BY-NC 4.0 · inat NC

Observed in nothing keyed to it directly

Every observation under it belongs to one of the taxa under it — 2 taxa · Malacostraca most observed, 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:845959")

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 2 taxa · Malacostraca most observed
Lineage 4 ranks · Biota to Crustacea
Credits silhouette · photo · text
Elsewhere Wikidata · iNaturalist

WikidataiNaturalist

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 ↗