| Arius macracanthus | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Order: | Siluriformes |
| Family: | Ariidae |
| Genus: | Arius |
| Species: | A. macracanthus |
| Binomial name | |
| Arius macracanthus Günther, 1864 | |
Arius macracanthus is a species of sea catfish in the family Ariidae. It was described by Albert Günther in 1864. It is known from freshwater in Thailand.