5
. Palawan Purple Crab (Insulamon palawanense)
Rainbow Swimming Crab (Charybdis erythrodactyla)
Elegant fiddler crab (Tubuca elegans)
Male fiddler crabs use the major claw to perform a waving display as a form of female courtship.[6] Females choose their mate based on claw size and also quality of the waving display.
Uca capricornis
Uca typhoni
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