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Antarcturus sp.
The Antarcturus (sp?) holds the distinction of being the only creature on this list without a fun and exciting name. Little is known about these guys (fun fact: Wikipedia articles have been written about them in Dutch and Vietnamese, but not in English as of yet, so get to work one of you pedia-types!) For the record they are isopods that live deep in the ocean and fancy a delicious sponge or coral branch as part of their diet.