| Reference no. | Description | Year | Name Used | Page |
|---|---|---|---|---|
| 78499 | Schindler, I. and J. Schmidt, 2006. Review of the mouthbrooding Betta (Teleostei, Osphronemidae) from Thailand, with descriptions of two new species. Zeitschrift für Fischkunde 8(1/2):47-69. | 2006 | Betta apollon | 47-69 |
| 130676 | Petersen, P., 2022. Danish names and photos and other species information. Pers. Comm. | 2022 | Betta apollon | --> |