CalCOFI.io CalCOFI.io open data ecosystem

Paralichthys californicus

California halibut

Speciesaccepted · checked 2026-08-05WoRMS 275809ITIS 172743GBIF 2408903key worms:275809
i

2026-08-05: itis_id 172743 via WoRMS external link

The California halibut or California flounder is a large-tooth flounder native to the waters of the Pacific Coast of North America from the Quillayute River in Washington to Magdalena Bay in Baja California Sur.W CalCOFI holds 1,662 observations of it in 1 dataset between 1951 and 2022, as larva and egg.R

1,662
observations
1,662
records
1,639
sampling events
1951–2022
years
1
datasets
larva · egg
life stages
1.5 m
max length
Photograph of Paralichthys californicus
Photo · Mike Carr · CC BY 4.0 · inat

Observed in 1 dataset
i

One row per dataset, and beside it one cell per year, darker with more observations — the same strip the front door draws per dataset. Each row ends with the name that dataset uses (dataset_taxon); the accepted name is written once, in the title above. A quiet pill marks a name the authority does not accept.

  • 1,662 obs1,639 events1951–2022larva · egg
    name used: Paralichthys californicus California halibut · code 932

Ways inExplorerdb-queryERDDAPRPythonThis page as JSON

Code and endpoints ERDDAP · R · Python · JSON
ERDDAPCalCOFI's own server, the Ichthyoplankton table constrained to this taxon
https://erddap.calcofi.io/erddap/tabledap/swfsc_ichthyo.html?&taxon_key=%22worms:275809%22

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 1.5 m max
California halibut1.5 m
a person1.7 m

max · worms_attribute

Every mark is a measured length with its own source — hover one to read it. The reference objects are _data/size_reference.csv: two of them, the 505 µm bongo mesh and the net's ring, are CalCOFI's own sampling gear.

Life stages larva · egg
  • Ichthyoplankton larva · egg

The stages each dataset records for it, from the release's obs_bio.life_stage. Their lengths are under How big is it.

Lineage 12 ranks · Biota to Paralichthys
Credits silhouette · photo · text · length
Elsewhere Wikidata · iNaturalist · FishBase

WikidataiNaturalistFishBase

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 ↗