Yurian
The Yurians are a race of crab-people first printed in the dungeons and dragons 3.0 fiend Folio. They are notable for not only having a misprinted racial hit dice and/or Level Adjustment, but for being one of two races of crab-people in D&D Third Edition to sport such a misprint, with the other race being the crucians.
Their counterpart in Magic: The Gathering is the Homarids.