The Crystal Basilisk is the unofficial name for an organism of a species that was eaten by Lion in "Lion 2: The Movie". A living Crystal Basilisk can be seen being chased away by Lion in "Lion 4: Alternate Ending".
The Crystal Basilisk is a small reptile resembling a sort of lizard. Its body has a smooth external surface and a "cadet blue" color, though variants in their color exist as compared between the two in "Lion 2: The Movie" and "Lion 4: Alternate Ending", the latter having a "Lochmara blue" skin color. Its eyes are devoid of pupils, leaving a pale turquoise sclera. It's defining feature, which earned the prefix in the name, are the six faceted crystalline spines protruding from its back. The crystalline spines can be colored light neon blue (in "Lion 2: The Movie") or apple green (in "Lion 4: Alternate Ending").
- The species is not related to Gems and is also not a corrupted Gem since despite its appearance, it does not poof when Lion consumes it in "Lion 2: The Movie" and instead leaves behind a corpse.
- Only the bottom half of the animal was seen in its first appearance, as Lion had eaten the top half.
- Though seemingly not part of the animal, the two previous appearances of the Crystal Basilisks have them being surrounded by white feathers.