CalCOFI.io CalCOFI.io open data ecosystem

Mollusca

molluscs

Phylumaccepted · checked 2026-08-05WoRMS 51ITIS 69458key worms:51
i

2026-08-05: itis_id 69458 via WoRMS external link

Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks. 86,600 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda.W CalCOFI holds 52,597 observations of it in 4 datasets between 1951 and 2026, across 59 taxa under it.R

52,597
observations
101,160
records
1951–2026
years
4
datasets
26
species under it
Photograph of Mollusca
Photo · Minette Layne · CC BY 4.0 · inat

Observed in nothing keyed to it directly

Every observation under it belongs to one of the taxa under it — 2 taxa · Cephalopoda 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:51")

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 · Cephalopoda most observed
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 ↗