Plakortis hooperi is a species of marine sponge in the order Homosclerophorida, first described in 2011 by Guilherme Muricy.[1] [2] The species epithet, hooperi, honours John Hooper (marine biologist), an Australian sponge specialist.
The holotype was collected off Motupore Island, Round Hill Barrier Reef, Papua New Guinea and the species is known from Papua New Guinea and the northern coasts of Queensland.[1]