TC, there's my problem. The item doesn't look shiny green to me. It looks diaphanous, so I'm thinking more along the lines of an egg sack of some sort. Perhaps it is merely that I'm not able to get as good a look at the picture as I need to do.
It occurs to me thst because of the black background the picture was taken on a night dive, which makes all the more sense that the crab intends to feed rather than just defensively move the item.
It occurs to me thst because of the black background the picture was taken on a night dive, which makes all the more sense that the crab intends to feed rather than just defensively move the item.