A Manta Ray passes over a reef, inviting a host of small fish to clean parasites and other debris off of the giant animal. Manta Rays are the largest rays in the ocean.
The extremely long legs and cone like body of Yellow line arrow crabs (Stenorhynchus seticornis) makes it easy to identify these spider like creatures. They are very friendly and don't get spooked by divers.
Nurse sharks (Ginglymostoma cirratum) have nasal barbels (fleshy projection) used to find food, and small teeth for crushing shellfish. They are known to be a very sluggish bottom feeder.
The leopard toadfish (Opsanus pardus) has a large, flat head and a large mouth with fleshy projections around it. They spend most of their time under a rock or crevice and feed mostly on mollusks and crustaceans.