memory alpha
diagram noting origin of .

Comparative Xenobiology diagram noting origin of Regulan blood worms.

Regulus II was the second planet in the Alpha Leonis system. This planet was approximately 79 light years from Sol and 300 light years from the Bajoran system. This was the homeworld of the Regulan blood worm. (DS9: "A Man Alone" okudagram)

When the Venari Ral laid Omega-47 mines around the core of Federation space in 3196, this planet was within the enclosed region. (SA: "300th Night")

This planet was only mentioned in writing.
This planet's quadrant of origin was inferred based on the position of its star system as seen in the star charts appearing in the Star Trek: Discovery episode "Magic to Make the Sanest Man Go Mad" and in the Star Trek: Picard episode "Maps and Legends".

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