European squid propulsion. The posterior border is slightly concave. The head is relatively small and has large eyes which are covered with a transparent membrane. Like almost all squid, this species has ten limbs surrounding the mouth and beak: eight are relatively short arms, and two, which form the tentacles, are long, as they are used to catch prey. The fourth left arm of males is a hectocotylus. The European squid can grow up to 30–40 cm in the mantle length, but more usually they are 15–25 cm long. The males are generally bigger than the females and exhibit more rapid rates
Squid as food served quickly. Unlike octopus, squid tentacles do not usually continue to move when reaching the table. This fresh squid is 산 오징어 ("san ojingeo") (also with small octopuses called "nakji"). The squid is served with Korean mustard, soy sauce, chili sauce, or sesame sauce. It is salted and wrapped in lettuce or pillard leaves. Squid is also marinated in hot pepper sauce and cooked on a pan (Nakji Bokum or Ojingeo Bokum). They are also served by food stands as a snack food, battered and deep fried or grilled using hot skillets. They are also cut up into small pieces