What is the name of the Space Pirate mother ship in Metroid: Zero Mission?

The Space Pirate mother ship in Metroid: Zero Mission is called the Space Pirate Mother Ship. The game uses this descriptive name for the enormous flagship stationed near Chozodia on the planet Zebes.

The vessel belongs to the Zebesian Space Pirates and serves as a major base of operations. After Samus defeats Mother Brain and escapes from Zebes, Space Pirate ships attack her gunship. She crash-lands near the mother ship, loses her Power Suit, and must infiltrate the vessel while wearing the Zero Suit.

This section is one of Zero Mission's major additions to the original Metroid story. Samus sneaks through the ship, reaches the Chozo ruins of Chozodia, recovers the Legendary Power Suit, and returns to destroy Mecha Ridley. The mother ship then begins to self-destruct, allowing Samus to escape in an enemy vessel.

The ship does not have a unique proper name comparable to the Frigate Orpheon from Metroid Prime. “Space Pirate Mother Ship” is its canonical descriptive designation. The Alimbic Cluster belongs to Metroid Prime Hunters, while the Leviathan is associated with the Prime trilogy.