Bigtooth Cardinalfish
Paroncheilus affinis
- Least concern
- Card rarity: Common
- Fish

The bigtooth cardinalfish or longtooth cardinalfish is a species of marine fish in the family Apogonidae and the only member of its genus. The bigtooth cardinalfish lives in the west-central Atlantic, off southern Florida, United States, and from the Bahamas to Venezuela, and as far south as Suriname. This species also is found in the east-central Atlantic and the Gulf of Guinea, and has been reported as far as Cape Verde. It is a pale orangeish colour.
Classification
- Class
- Actinopterygii
- Order
- Gobiiformes
- Family
- Apogonidae
- Genus
- Paroncheilus