Anthozoan Crab

The Anthozoan Crab is a Hardmode enemy that spawns in the Sulphurous Sea after the Aquatic Scourge has been defeated. It attacks by quickly running at the player and occasionally stopping to throw rocks at the player. It will leap backwards when the player gets too close to it.

Trivia

 * Anthozoa refers to a class of marine invertebrates (animals without backbones) that includes sea anemones and corals.