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Onykia robusta

Robust clubhook squid

Speciesaccepted · checked 2026-08-05WoRMS 410385ITIS 82438GBIF 5855954key worms:410385

Onykia robusta, also known as the robust clubhook squid and often cited by the older name Moroteuthis robusta, is a species of squid in the family Onychoteuthidae. Reaching a mantle length of 2 m (6.6 ft) it is the largest member of its family and one of the largest of all cephalopods.W CalCOFI holds 11 observations of it in 1 dataset between 2013 and 2021, as invert.R

11
observations
11
records
11
sampling events
2013–2021
years
1
datasets
invert
life stages
2 m
max length
Photograph of Onykia robusta
Photo · pinemartyn · 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.

  • 11 obs11 events2013–2021invert
    name used: Onykia robusta Robust clubhook squid · code 9607

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:410385%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 2 m max
Robust clubhook squid2 m
a person1.7 m

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 Onykia
Credits silhouette · photo · text · length
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, v2026.10.21

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