Answer:
Often cooked as fillet, this meat comes from an animal that swims underwater.
A warrior among the flowers, he bears a thrusting sword. He uses it whenever he must, to defend his golden hoard.
To you, rude would I never be, Though I flag my tongue for all to see.
A stellar five-Βlimbed sea creature.
The ones in the sea are prickly, but the ones on the street might pickpocket you.
A mysterious, fantastic creature, It has one defining feature, And for humans at their worst, In their eyes it's just a horse