Meron

Biology
The Merons were Mermaid-like Blue Skinned humanoids with multiple fins on their head and three fingers on each hand.

History
The Merons fought a centuries long war with their sworn enemies, the Jixen. Entire planets have been destroyed in the conflict (K9TV: Liberation)

In 2050 at least one Meron came to Earth and infiltrated The Department's Alien detention centre, Dauntless Prison. A lone Jixen which was in London at the time went to the prison. K-9 and his friends went to the prison to track the Jixen. K-9 (2050) and Starkey managed to lock the Jixen in a cell when the Meron revealed his true form and attacked K-9 and advanced on Starkey. However before he could strike, the Jixen emitted a loud scream which made the Meron flee. (K9TV: Liberation)

What happened to the Meron afterwards is unknown.

Technology
The Merons had an ability to shapeshift and when in their true form they could summon a Trident-shaped weapon.