Red White Spotted Hermit Crab (Large)

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Description

One of the largest hermit crabs, reaching up to 30 cm in length. It is bright red to orange with white spots encircled by blue/black lines.

Morphology

Like in all representatives of the family Diogenidae, D. megistos has the left claw larger than the right. The claws have spines and are covered in stiff setae giving them a hairy appearance.

Evolution

The evolution of hermit crabs is strongly linked to the evolution of the gastropod shells they use for protection. There are 42 species of Dardanus, of which 18 occur in Australia.

Behaviour

Can get aggressive with each other when competing for gastropod shells. Feeds on molluscs.

Method of reproduction

Sexual

Habitat

Marine

Associated with coral reefs, from the intertidal zone up to 100m depth.

Distribution

Widespread Indo-West Pacific

Life Cycle

Several planktonic larval stages

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