Several squat lobsters were observed living within black corals. Oftentimes confused for actual lobsters, these crustaceans are more closely related to hermit crabs. Squat lobsters can have arms that exceed their body length multiple times.
Subphylum Crustacea, Class Malacostraca, Order Decapoda, Infraorder Anomura, Superfamily Galatheoidea or Chirostyloidea (squat lobsters)