The Bluestriped Fangblenny (Plagiotremus rhinorhynchos) can be found throughout the Indo-Pacific Ocean. They are parasitic by nature, eating the skin off of other fish. They mimic the movement and colors of other species, attempting to get closer. Once within range, they will quickly bite the prey with their serrated teeth, then return to their tunnel for safety. Their bite contains an opioid-based venom that reduces the pain of the bite, but also reduces the victim's blood pressure, causing disorientation. While not common, there are records of them attacking divers.