Home > Invertebrates > Crabs > Thranita crenata

Updated 10/25/2022

Family Portunidae

INDO-PACIFIC / HAWAII

Thranita crenata

Kuli'ou'ou, Oahu, 1 foot

 



Moku o Lo'e, Oahu, 1 foot


Kailua, Oahu


Mating
   

BLUE-PINCHER or  NOTCHED SWIMMING CRAB

Common in muddy bays and harbors.  Claws blue with reddish-brown tips.  Attains carapace width of 4 inches.  Hawaii & the Indo-Pacific.  Formerly known as Thalamita crenata.

Funny video showing its aggressive nature: https://www.youtube.com/watch?v=yS0dyl1TsiU