This barnacle, probably either Lepas anatifera or pacifica, is seen attached to the stipe of kelp. The extended cirri permit the capture of tiny planktonic organisms.
We find this amphipod amoung blades of the green alga Ulva, low intertidal, where it is beautifully camouflaged. Note the prominent compound eye. The bright red color is due to the visual pigment rhodopsin, present in all known animal photoreptors.
