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 , it is the largest member of its family and
one of the largest of all cephalopods. The tentacular clubs are slender, containing 15–18 club hooks.
Arms of the species contain 50–60 suckers, and grow to 90–100% of the mantle length. It is found primarily in the boreal to temperate
North Pacific.