yes they do because they r not mammekls and i do not know if they die after they lay their eggs
Yes land hermit crabs do lay eggs if you suppose to have a sot of digged up spot in the tank check for a egg but watch out if you touch the egg the mother will not sense that the egg is hers and hermit crabs carry a disease called salmonella so do not touch 
Crabs spawn roe (which female crabs carry on themselves for a couple of month). But technically roe also can be called "eggs" )
Fiddler crabs typically lay between 100 to 1,000 eggs at a time, depending on the species. The female crab carries the fertilized eggs under her abdomen until they hatch into larvae.
Yes they do. And mating occurs when the female mud crab is in the soft-bodied condition following moulting. Female mud crabs in Australian populations migrate offshore to spawn and are rarely seen. 2 to 8 million eggs are produced in each spawning. Female crabs incubate the eggs for 2 to 4 weeks under their abdominal flap. For more information on the cycle of the Mudcrab
Yes Crabs do lay eggs. They lay millions at a time.
they lay eggs
Well, Female crabs lay roughly 15-20 baby eggs. But sadly, many reptiles (including predator from Alien VS Predator) eat, and feast off these eggs and their insides. So about, 0 crabs survive due to the predators nommin' em,
Depending on the type of crab, it can lay from a few hundred eggs to a few million. For example, hermit crabs may lay up to 600 eggs, while blue crabs can lay up to 8 million eggs.
i think they get jiggy with a mate and lay eggs.
Hermit Crabs lay their eggs by going to where seawater is only.
They lay eggs. But the male crab inserts his sperm into the gonophores, and the female releases eggs. For the eggs to get fertilized by the male, there has to be saltwater.