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Species · accepted · checked 2026-08-05

Onykia robusta

Robust clubhook squid

WoRMS 410385ITIS 82438GBIF 5855954key worms:410385
Silhouette · Margot Michaud · CC0 1.0 · PhyloPic, drawn from Histioteuthis heteropsis
Robust clubhook squid2 m
a person1.7 m

max · sealifebase

Photograph of Onykia robusta
Photo · pinemartyn · CC BY-NC 4.0 · inat NC

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

Observed in
i

One row per dataset, 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.

  • Ichthyoplankton 11 obs · 11 events · 2013–2021 · invert
    name used: Onykia robusta Robust clubhook squid · code 9607

How big is it
i

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.

Ways in
i

Read from taxa.json of release v2026.09.11, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

Explorerdb-query
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