Sea Cucumbers, Urchins and Stars: Echinodermata

You cannot say that all Echinodermata are the most lovely of creatures, but they are definitely of interest on scuba dives or when you’re out snorkelling.

Featherstars; Crinoidea

Nocturnal animals, they filter feed using their feather-like arms. They can walk using using modified legs called cirri, and usually hide, coiled up, during the day.

Starfish or Sea Stars; Echinodermata

Definitely not a fish, but "star echinoderm" somehow doesn't sound as good... (4 Galleries)

Sea Urchins, Mice and Sand Dollars; Echinoidea

They all have some kind of bony exoskeleton and are generally spiky. Contact should be avoided! (8 Galleries)

Sea Cucumbers; Holothuroidea

A simple function; food (dirty sand or substrate) in at one end and waste (clean stuff) out the other! These ugly beasts are important reef cleaners. (2 Albums, 3 Galleries)

Brittlestars; Ophiuroidea

With 5 arms (that are easily broken, hence the name) and a central disc of a body, they seem to get everywhere.