Peppermint shrimp (Lysmata wurdemanni), Dominica, West Indies, Caribbean, Central America

A cleaner shrimp (Lysmata amboinensis), inspects the teeth of an undulated moray eel, Hawaii, United States of America, Pacific, North America

A cleaner shrimp (Lysmata amboinensis) inspecting a honeycomb moray eel (Gymnothorax favageneus), Philippines, Southeast Asia, Asia

A pair of white striped cleaner shrimp (Lysmata amboinensis), Tulamben, Bali, Indonesia, Southeast Asia, Asia

Bigeye Emperor cleaned by Shrimp, Monotaxis grandoculis, Russell Islands, Solomon Islands

White-lined Grouper cleaned by Shrimp, Anyperodon leucogrammicus, Russell Islands, Solomon Islands

White-banded cleaner shrimp (Lysmata amboinensis) cleaning honeycomb moray (Gymnothorax favagineus), Alam Batu, Bali, Indonesia, Southeast Asia, Asia

Close-up, head of a giant moray (Gymnothorax javanicus) opens mouth for two white-banded cleaner shrimps (Lysmata amboinensis), Pacific Ocean, Palau, Oceania

Yellow-edged moray (Gymnothorax flavimarginatus) at cleaning station with pacific cleaner shrimp (Lysmata amboinensis), Sodwana Bay National Park dive site, Maputaland Marine Reserve, KwaZulu Natal, South Africa, Africa

Lysmata late stage zoea larva that was photographed under water during a blackwater dive off the Kona coast, the Big Island; Island of Hawaii, Hawaii, United States of America

A necessary alliance, a symbiosis even between this moray eel (Gymnothorax javanicus) and this cleaning shrimp (Lysmata amboinensis). Depth: 65m, Mayotte