Distinguishing features

They have a light organ fuelled by symbiotic bioluminescent bacteria. The light organ, which is butterfly-shaped, is situated in the mantle cavity and is used to cancel out the squid's silhouette. There are large semi-circular fins on the rear half of the mantle. Although they can change colour, they are usually an iridescent green or yellow with brown spots. They have four rows of suckers on each arm and both their arms and tentacles are armed with toothed horny rim. (Wikipedia)

Size

Depth range

Synonyms

Distribution

Distribution and habitat preferences

They are found in seagrass beds or areas with soft silty or muddy bottoms from Brisbane on the east coast to Shark Bay on the west, as well as around Tasmania. (Wikipedia)

Chronotypes

Web resources