@mister_monster nice! What manner of beast are they?
@MrNarrow those are blue crabs. They're small for a crab but delicious and ubiquitous along the Atlantic coast of North America.
@mister_monster maybe we have something similar here called the 'Blue swimmer' crab actually, has a nice blue on the shell before you cook them. Wish I lived closer to the ocean...
@mister_monster not the same beast though it seems https://en.wikipedia.org/wiki/Portunus_armatus
@mister_monster yeah I've caught them on the east coast of Australia but it appears they are all over according to that Wikipedia page.