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Onychoteuthis borealijaponica

Boreal clubhook squid

Speciesaccepted · checked 2026-08-05WoRMS 342069ITIS 82442key worms:342069

Onychoteuthis borealijaponica, the boreal clubhook squid, is a species of squid in the family Onychoteuthidae. It is the largest member of the genus Onychoteuthis, reaching a mantle length of 30 cm in males and 37 cm in females.W CalCOFI holds 227 observations of it in 1 dataset between 2008 and 2023, as invert.R

227
observations
227
records
227
sampling events
2008–2023
years
1
datasets
invert
life stages
30 cm
max length
Photograph of Onychoteuthis borealijaponica
Photo · fishbonesjones · CC BY-NC 4.0 · inat NC

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.

  • 227 obs227 events2008–2023invert
    name used: Onychoteuthis borealijaponicus Boreal clubhook squid · code 9595 synonym

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:342069%22

Read from taxa.json of release v2026.10.21, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

How big is it 30 cm max
Boreal clubhook squid30 cm
bongo net ring71 cm

max · sealifebase

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 invert
  • Ichthyoplankton invert

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

Lineage 10 ranks · Biota to Onychoteuthis
Credits silhouette · photo · text · length
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, v2026.10.21

Cite the release, v2026.10.21; each dataset's own citation, licence and DOI are on its page. How to cite ↗