Natal rock crab waiting for the waves on rock boulders. Port St Johns, Wild Coast, Eastern Cape (2021) - iNaturalist Carapace black, usually speckled with green. Sides obviously convex. The posterior part of the carapace has about eight fine grooves that run outwards to the edge. Legs red-brown and yellow. Nippers dark red. 'Hand' weakly… Continue reading Natal rock crab (Grapsus tenuicrustatus)