Well, whaddya know?
Please, I would very much like you to meet Isopoda, one of the Cuban Troglobitic species, and non-terrestrial too - which may for all I know mean that it's from outerspace, although it probably means it likes to hang around in the ocean. It is known to its little creepy friends as Pseudoarmadillo carinulatus, and has a cousin called Pseudoarmadillo gillianus.
So there you are. This concludes our lesson on strange little segmented creatures for today.