Commensal Sea Urchin Shrimp (Periclimenes colemani) - male and female on venomous Fire Urchin (Asthenosoma varium). Great Barrier Reef, Queensland, Australia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Emperor Shrimp (Periclimenes imperator) - male and female on Sea Cucumber. Kimbe Bay, Papua New Guinea  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Banded Coral Cleaner Shrimp (Stenopus hispidus). Also known as Boxer Shrimp. Great Barrier Reef, Queensland, Australia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Hinge-beak Shrimp (Rhynchocinetes durbanensis) on Sponge. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Emperor Shrimp (Periclimenes imperator) on Sea Cucumber. Great Barrier Reef, Queensland, Australia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Cleaner Shrimp (Stenopus tenuirostris) on Sea Tunicates. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Whip Coral Shrimp (Pontonides unciger) - male and female on Whip Coral. Found throughout the Indo-Pacific. Photo taken at Kimbe Bay, Papua New Guinea  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Mantis Shrimp (Odontodactylus scyallarus). Found on sand and rubble throughout the Indo-Pacific. Photo taken at Tulamben, Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Mantis Shrimp (Odontodactylus scyallarus). Found on sand and rubble throughout the Indo-Pacific. Photo taken at Tulamben, Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Mantis Shrimp (Odontodactylus scyallarus). Found on sand and rubble throughout the Indo-Pacific. Photo taken at Tulamben, Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Mantis Shrimp (Lysiosquillina sp.). Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Mantis Shrimp (Possibly: Lysiosquillina maculata) - free swimming at night. Milne Bay, Papua New Guinea  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Mantis Shrimp (Odontodactylus scyallarus). Found on sand and rubble throughout the Indo-Pacific. Photo taken at Tulamben, Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Mantis Shrimp (Lysiosquillina sp.). Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Mantis Shrimp (Odontodactylus scyallarus). Found on sand and rubble throughout the Indo-Pacific. Photo taken at Tulamben, Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Crinoid Shrimp (Periclimenes amboinensis) on arm of Crinoid Featherstar. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Crinoid Shrimp (Possibly: Periclimenes psamathe) on arm of Crinoid Featherstar. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Crinoid Shrimp (Periclimenes amboinensis) on arm of Crinoid Featherstar. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Harlequin Shrimp (Hymenocera picta). Indo-Pacific  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Harlequin Shrimp (Hymenocera picta). Indo-Pacific  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Harlequin Shrimp (Hymenocera picta). Indo-Pacific  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Shrimp (Periclimenes imperator) on Sea Cucumber. Kimbe Bay, Papua New Guinea.  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Shrimp (Periclimenes imperator) on Sea Cucumber. Kimbe Bay, Papua New Guinea.  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Shrimp (Periclimenes imperator) on Sea Cucumber. Kimbe Bay, Papua New Guinea.  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Anemone Shrimp (Thor amboinensis) on Sea Tunicate. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Anemone Shrimp (Thor amboinensis) on Tube Anemone. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Striped Bumblebee Shrimp (Gnathophyllum americanum) on Tube Sponge. Bali, Indonesia. Within Coral Triangle.  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Cleaner Shrimp (Lysmata debelius). Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Starfish Shrimp (Periclimenes soror) on Crown-of-thorns Starfish. Great Barrier Reef, Queensland, Australia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Marble Shrimp (Saron sp.). Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Anemone Shrimp (Periclimenes brevicarpalis) on Sea Anemone. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Ghost Shrimp (Caprella sp.) on Stinging Hydroid. Also known as Skeleton Shrimp. Bail, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Anemone Shrimp (Periclimenes brevicarpalis) on Sea Anemone. Lord Howe Island, New South Wales, Australia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Whip Coral Shrimp (Pontonides unciger)on Whip Coral. Found throughout the Indo-Pacific. Photo taken at Kimbe Bay, Papua New Guinea  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Anemone Shrimp (Periclimenes brevicarpalis) on Sea Anemone. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Ghost Shrimp (Caprella sp.) on stinging Hydroid. Also known as Skeleton Shrimp. Bail, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Starfish Shrimp (Periclimenes soror) on Linckia seastar. Great Barrier Reef, Queensland, Australia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Hinge-beak Shrimp (Rhynchocinetes durbanensis) - male. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Starfish Shrimp (Periclimenes soror) on seastar. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Elegant Shrimp (Phyllognathia ceratophthalma). Related species to the Harlequin Shrimp that also predates on Seastars. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Candy-stripe Pistol Shrimp (Alpheus astrinx). Also known as Snapping Shrimp. York Peninsula, South Australia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Elegant Shrimp (Phyllognathia ceratophthalma). Related species to the Harlequin Shrimp that also predates on Seastars. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Hinge-beak Shrimp (Rhynchocinetes durbanensis) - male. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Mantis Shrimp (Odontodactylus scyallarus). Found on sand and rubble throughout the Indo-Pacific. Photo taken at Tulamben, Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Anemone Shrimp (Periclimenes brevicarpalis) on Sea Anemone. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
           
          
          
            
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Anemone Shrimp (Periclimenes brevicarpalis) on Sea Anemone. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Urchin Shrimp (Stegopontonia commensalis) - on Sea Urchin (Diadema sp.) spine. Bali, Indonesia  © Gary Bell / OceanwideImages.com  
		
      
       
   
   
  
  
  
	   
	  
	  
	   
	  
	   
      
	  
	  
	   
       
      
      
      
          Commensal Urchin Shrimp (Stegopontonia commensalis) - on Sea Urchin (Diadema sp.) spine. Bali, Indonesia  © Gary Bell / OceanwideImages.com