Which Type Of Association Is Between Hermit Crab And Hydroids?

Which Type Of Association Is Between Hermit Crab And Hydroids? The hydrozoan family Hydractiniidae, composed of the genera Hydractinia, Podocoryne, and Stylactis, has a cosmopolitan distribution. Hydractiniids are often found in association with other marine animals; perhaps the most common association involves hydractiniid polyps colonizing shells occupied by hermit crabs. What type of symbiotic relationship