Crabs that live in a shell they did not grow. Most are out on open sand after dark and are among the easiest animals to find on a night dive.
The shell decides much of what the animal does. A hermit crab outgrows its shell and has to change, which is when it is most exposed, and several species carry passengers on the shell: the anemone hermit crab plants anemones on its own and moves them across when it changes house.
The coral hermit crab breaks the pattern. It does not carry a shell at all but lives in a hole in living coral and puts out feathered antennae to filter the water, so it reads as a worm until it withdraws.
Every one has a page. They are shown as a list rather than as pictures because nothing has been photographed or logged for them yet, and a species with nothing behind it should not sit in front of one that has.
How many of the 10 carry a record at each destination. A species usually carries several, so these do not add up to 10.
All 1316 species in one index, with filters for destination, rarity and hazard.