Two nudibranchs with two emperor shrimp riding on their backs, Tulamben, Bali, Indonesia.

animal animal themes bali caridea chromodorididae color image commensalism crustacean decapoda doridoidea emperor shrimp four animals front view full length gastropod horizontal hypselodoris hypselodoris tryoni indonesia macro malacostraca mollusk nature no people nudibranch ocean on top of outdoors palaemonidae pattern periclimenes periclimenes imperator photography sea sea life sea slugs shrimp southeast asia symbiosis symbiotic relationship tulamben undersea underwater wildlife zoology