The Aunithox were a species known to Captain Morgan Bateson native to either the Alpha or Beta Quadrant.

The Aunithox were known for a food called plajia cakes. Sometime in approximately the 2330s their sun went supernova, causing the species's extinction. (TNG comic: "Out of Time")

The extinction is not explicitly stated, but based on the context of Bateson's speech, it is implicitly implied, as there are not people familiar with their food in the 24th century.