Chrysiptera rolandi,very nice fish.

For a damsel, this is a top fish.
If you can get one, they are excellent in a reef set up as they are mostly harmless and quite a pretty fish that only gets to around 80 mil in size and they are more like a chromis not a damsel.
They also eat any thing, they don’t believe in parasites so they are virtually always parrasite free under any conditions.
We would see, maybe ten a year of these and they are always of a reasonable nature and a great addition to the aquarium.