Spiny Boxfish
Capropygia unistriata
- Least concern
- Card rarity: Common
- Fish

Capropygia is a monospecific genus of marine ray-finned fish belonging to the family Aracanidae, the deepwater boxfishes or temperate boxfishes. The only species in the genus is the black-banded pigmy boxfish, also known as the spiny boxfish which is endemic to southern Australia.
Classification
- Class
- Actinopterygii
- Order
- Tetraodontiformes
- Family
- Aracanidae
- Genus
- Capropygia