Aeoliscus strigatus, also known as the razorfish, is a member of the family Centriscidae of the order Syngnathiformes. This unique fish adopts a head-down tail-up position as an adaptation for hiding among sea urchin spines. The razorfish is found in coastal waters in the Indo-West Pacific. Its natural habitat includes beds of sea grass and coral reefs, where sea urchins are found.
Form schools among the spines of Diadema or staghorn corals, and feed on minute crustaceans in the zooplankton. Remarkable for their strange body shape and swimming habit: the body is encased in an armor of thin, transparent plates; they swim in synchronized groups, each fish in a vertical position with the snout pointing downwards.