Phylum:

Arthropoda

Subphylum:

Crustacea

Habitat:

Soft bottom/sand, seagrass beds, algae fields

Occurrence:

Mediterranean (invasive species); Indo-Pacific; Red Sea
up to 65 m depth

Appearance:

The females are brown-green and the males are coloured in shades of blue
Characteristic fifth pair of legs, their end limbs have oval and flattened paddles for swimming