Behaviour
When threatened, Heterozius rotundifrons has a unique antipredator behavior where it fully extends all its limbs including its chelipeds and becomes immobile. The crab keeps defensive stance for up to a few minutes.
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Species
Big Hand Crab
Heterozius rotundifrons, A. Milne-Edwards, 1867
marine
About Big Hand Crab
Heterozius rotundifrons, or big hand crab, is a species of crab of the family Belliidae, endemic to New Zealand. The carapace width is up to 25 millimetres (1 in).
Where to see it
No dive sites list Big Hand Crab yet. Explore the map to find sites near you.