Coconut thief crab

characters

"a large black crab (likes of which sailors called "palm thieves") was indulging in a succulent coconut." --Scene #3

• large
• holds a coconut

Real-life palm thieves

• Wikipedia article
• Full picture
• Video 1
• Video 2

They don't live anywhere near the Caribbean sea, so the crab from the game is of different species. "Large" doesn't mean "giant" - it means "larger than average palm thief".