Pygmy cuttlefish

Scientific name : Idiosepius pygmaeus

Cylindrical pygmy cuttlefish, 2 circular fins in the back part. Commonly it has a reverse colour pattern, with the dorsal part lighter and the ventral part darker, seeming to swim upside down. Body 2 cm. Living in coastal environments, like lagoon or bay. Active by night. Its back has a glue gland, producing an adhaesive mucus, that allow to adhaere on seaweeds, seagrasses or other surfaces. Another gland produces the anti-glue, allowing rapid detachement if it is needed (for example, to avoid a predator).
Often confused with a juvenile cuttlefish.

Associated organisms
Occasionally with seaweeds, seagrasses, or sessile animals, used to adhaere temporarily.