Marine echinoderm whose shell is covered in mobile spines

Let's find possible answers to "Marine echinoderm whose shell is covered in mobile spines" crossword clue. First of all, we will look for a few extra hints for this entry: Marine echinoderm whose shell is covered in mobile spines. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.