In this closeup of the head (cephalon) one can see the lateral eyes (kidney-shaped when viewed from the side) and the fact that the first pereonite is much wider than the cephalon.
In this view of the underside of the head one can see the palp along the side of the third maxilliped, which is covering the mouth (the dark mandibles are visible between the third maxillipeds). The palp has 5 segments.
This view shows the last two pereonites (at top), then the two free pleonites and the front of the pleotelson. The lateral plates seen on the pereonites are actually coxal plates. Note that the posterolateral margin of the coxal plate from the last (7th) pereonite is pointed (acute) The first pleonite is narrow or acute at the edge, much narrower than it is mid-dorsally. Note the notch at the sides of the front of the pleotelson showing the margin of a third partly free pleonite.
In this ventral view one can see the 7 similar pereopods on the pereon, and the flaplike ventral uropods which are characteristic of suborder Valvifera and cover the pleopods on the pleotelson.
Pentidotea resecata (Stimpson, 1857) Common name: Concave isopod, eelgrass isopod, cut-tailed isopod, seaweed isopod, kelp isopod, transparent isopod Pentidotea resecata about 5 cm long found by Heidee Leno at Shannon Point. The brown stringy growth seen at several places on the body is chains of diatoms attached to the cuticle. Photo taken by Heidee Leno, July 2002
