Crabs - what is the 'brown meat'?

Just returned from holiday in Cornwall, where I ate fresh crab for the first time (have had it prepared for me before, but never actually just bought one and prepared it myself).

The ‘white meat’ in the legs and claws is obviously muscle and is superb, but what (what organ) is the ‘brown meat’ inside the main body of the crab? (It’s quite strong-smelling and I didn’t fancy it, so I only ate the white meat)

crab crap, i suppose

catchy phrase, eh? pats herself on the back

Don’t think it can be; although I ‘prepared’ the crab myself, what I didn’t mention is that the girl in the shop ‘cleaned’ it for me, removing the gills and digestive system, but there was still a fair bit of ‘body meat’ inside the shell.
There are no large moving parts in the top and edges of the shell, so I don’t think it can be muscle, so is it some kind of energy-storage organ or something?

I found your answer at this website:

http://www.clark.net/pub/crabbing/pick.htm

Are you by chance thinking of the gills (not so good for eating)?

No, she removed the gills (also known as ‘dead men’s fingers’ I believe - aren’t these unsafe to eat?