Squid
Veined Squid
Loligo forbesii
Loligo forbesii Steenstrup, 1856 · Loliginidae WoRMS 140270
Reference photos
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A long, slender, cylindrical squid whose paired fins form an elongate diamond running about three quarters of the mantle. Pink, red and brown predominate, with flame-like purplish stripes along the mantle. It gathers near the bottom by day and rises into the water column at night.
Depth
Shelf and shelf edge, mostly 50 to 250 m, with records from 10 m down to over 700 m
Size
Mantle length up to 937 mm in males and 462 mm in females, commonly 200 to 300 mm on the eastern North Atlantic shelf
Habitat
Coastal and continental shelf seas over sandy and muddy bottoms, moving into shallow water to spawn
Behaviour
Aggregates near the bottom by day and disperses into the water column at night; moves offshore as it grows, returning inshore to breed
Diet
I eat
- Small fish above all, especially gadoids such as whiting and poor cod, clupeids such as sprat, and sandeels
- Crustaceans, which dominate the diet of juveniles and small squid
- Other cephalopods, including smaller squid of its own kind
Eats me
- Toothed whales and dolphins, from pygmy sperm whales and killer whales to common, striped and bottlenose dolphins
- Seals, both grey and harbour seals
- Large demersal fish such as Atlantic cod and monkfish
Where you'd find it
Found around most of Britain and Ireland, though less often in the Irish Sea.
Sources
Open-access references behind this page. Every statement on this page was read out of one of them; anything that could not be traced to a source was taken off the page rather than left standing. Each link was checked on the date shown, and confirmed then to be about this species.
Centre for Environment, Fisheries and Aquaculture Science (Cefas) (2017)
ID guideCefas guide, freely distributed; byte-identical copy already in the repo at decision-tree/id-guides/cefas-cephalopods-uk.pdflink checked 2026-08-30
Diet of the squid Loligo forbesi Steenstrup (Cephalopoda: Loliginidae) in Irish waters
Oxford University Press for ICES, ICES Journal of Marine Science 51(3):337-344; open record held by the NERC Open Research Archive (1994)
PaperAbstract open on the NERC repository; ICES JMS pre-2023 content free to view on the publisher websitelink checked 2026-08-30
Food and Agriculture Organization of the United Nations (2010)
FAOFAO open accesslink checked 2026-08-30
Cephalopod biology and fisheries in Europe: II. Species Accounts
International Council for the Exploration of the Sea (ICES) (2015)
PaperICES Library open accesslink checked 2026-08-30
Long finned squid (Loligo forbesii) - MarLIN species information review
Marine Life Information Network, Marine Biological Association of the UK
MarLINlink checked 2026-08-30
Loligo forbesii Steenstrup, 1856
World Register of Marine Species (WoRMS Editorial Board)
TaxonomyCC BY 4.0link checked 2026-08-30
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