Broad pale central stripe on the carapace, usually with thin dark borders, surrounded by coloration that matches the host crinoid. A single spine is present on each side of the carapace behind the eyes. Found at depths of 3 to 10 meters.

Galathea called squad lobster because it had an abdomen bent up under the body just like lobster. It also had a long chelipeds that resemble a lobsters antenna. The chelipeds is slender and use as walking-legs that elongate, the chelipeds also uses for transferring food to the mouth. Galathea always have their abdomen bent up under its body and the last pair of legs can be used for cleaning the respiratory chamber.

This small species of lobster is found exclusively on barrel sponges. It is bright pink with purple stripes on its legs and along its body. The whole body is decorated with white bristles, which make up the skeleton of the sponge. Usually a pair or a small group of squat lobsters share one sponge.

This species lives inside the arms of crinoids (feather stars) for protection. It adopts the colour pattern of its host by repositioning chromatophores (pigment cells) in its carapace. It feeds on plankton collected from the arms of its host.