Evir

From Wikitroid, the Metroid wiki

The Evirs are crustaceans that appear in Super Metroid at Maridia. They are children of the Draygon, but are colored orange. However, the Evirs that surround Draygon are colored green. Evirs also appear in the reef area of Metroid Fusion's AQA (Sector 4), after the Nightmare boss is defeated. They attack differently than a normal Evir.