Calappa ocellata

Ocellate Box Crab, Calappa ocellata, male grasping a female as she has almost finished molting

Molting Box Crab

September 5, 2015

I am pretty sure these Ocellate Box Crabs (Calappa ocellata) are mating or about to mate. Not to split hairs, but one box crab carrying a smaller box crab around doesn’t necessarily mean we caught them in the act. The female mates when her shell is soft, i.e., when she has just molted. A male, sensing that the female is about to molt may grasp her and carry her around, presumably to make sure no other male sweeps her away. … Read more