The Hairy Shrimp (phycocaris simulans) is also called Algae Shrimp. They grow up to 5 mm in size (often smaller) and sit in between Algae or on rocks and rubble or in between tunicates and ascidians. They can be white, brown, red, yellow or even sometimes greenish and perfect their camouflage with their hairy outgrowth. The tail of the Hairy Shrimp stands high up and gives him a swan-like profile.