Brilliant Pearlside
Argyripnus iridescens
- Least concern
- Card rarity: Common
- Fish

Argyripnus iridescens, also known as the pearlyside lightfish or brilliant pearlside, is a species of oceanic ray-finned fish in the genus Argyipnus. It lives in deep-water environments across the Southwest Pacific. Its max length is 14 cm (5.5 in).
Classification
- Class
- Actinopterygii
- Order
- Stomiiformes
- Family
- Sternoptychidae
- Genus
- Argyripnus