External features of Penaeus
Cephalothorax antennule antenna antennal flagellum scaphocerite carapace maxilliped pereopods compound eye rostrum Abdomen pleopods abdominal segments Tail uropods telson
	Shrimp have 5 pairs of pereopods. The first 3 pairs are used for feeding: the small chelae at the end of the pereopods are well adapted for probing the substratum and catching and holding small animals found there. The last 2 pairs of pereopods function as walking legs, but often are assisted by the pleopods so that the movement is a gliding motion rather than a walk (Dall et al., 1990).