 The pseudotentacles are retracted at dusk.A number of different invertebrates live in close association with "Lebrunia neglecta".These include Pederson's cleaning shrimp ("Ancylomenes pedersoni"), the spotted cleaner shrimp ("Periclimenes yucatanicus"), the shrimp "Periclimenes rathbunae", the shrimp "Thor amboinensis", the arrow crab "Stenorhynchus seticornis", the anemone crab "Mithraculus cinctimanus" and a brittle star.