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
Little flying squid slightly less than half of the mantle length. The largest arm suckers have 9-11 sharp different sized teeth on distal two thirds of their rings. The height of the protective membrane on the arms is uniform and it is not higher than that of the suckers. The manus of the tentacles has 6-8 sucker rows in four series and the rings of the medial suckers on the manus have 16-18 moderately large, subconical teeth which alternate with low plates and are around 2.5 times largers than the marginal suckers in diameter. On the tentacles the protective membranes extends to the