Magma Slug

"From beneath the lava appears a Magma Slug."

The Magma Slug is a Sea Creature that can be fished up from in the Crimson Isle.

Spawning
The Magma Slug can be fished up from any body of Lava in the Crimson Isle with a Lava Fishing Rod. It requires  Fishing XXVII (27) to be fished up.

Behavior
When killed, a Magma Slug splits into 3 Baby Magma Slugs. Only the final Baby Magma Slug to be killed will drop loot.