Cephalopod eight or ten. Decapods such as cuttlefish and squid have five pairs. The longer two, termed "tentacles", are actively involved in capturing prey; they can lengthen rapidly (in as little as 15 milliseconds). In giant squid they may reach a length of 8 metres. They may terminate in a broadened, sucker-coated club. The shorter four pairs are termed "arms", and are involved in holding and manipulating the captured organism. They too have suckers, on the side closest to the mouth; these help to hold onto the prey. Octopods only have four pairs of sucker-coated arms, as the name suggests, though
Colossal squid Colossal squid The colossal squid ("Mesonychoteuthis hamiltoni", from Greek "mesos" (middle), "onycho" (claw, nail), and "teuthis" (squid)), sometimes called the Antarctic squid or giant cranch squid, is believed to be the largest squid species in terms of mass. It is the only known member of the genus "Mesonychoteuthis". It is known from only a few specimens, and current estimates put its maximum size at long and weighing possibly up to , based on analysis of smaller and immature specimens, making it the largest-known invertebrate. Unlike the giant squid, whose arms and tentacles have only suckers lined with small teeth, the