Yes you can eat the dead man on the crab although the dead man part of the crab is not very tasty.
The dead man part of the crab is not toxic or harmful nor is the dead man on the crab poisonous as some people have been told or believe.
The dead man of the crab is edible but it's not very delicious to eat so you would probably not like it but some people do.
I tried the dead man part of the crab before and hated it but it's edible.
The dead mans fingers of the crab are essentially the gills of the crab that are elongated, spongy-looking organs that enable the crab to be able to filter air from the water and help it breathe.
The dead mans fingers on the crab are not poisonous and will not kill you if you eat them.