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| Class - 1: All Other New World | Class - 9: Chromaphyosemion |
| Class - 2: Non-annual Rivulins | Class - 10: Rollofia: e.g.; Call., Arch., & Script. |
| Class - 3: Removed | Class - 11: Aphyosemion, diapteron |
| Class - 4: Nothobranchius | Class - 12: Aphyosemion, kathetys |
| Class - 5: Fundulopanchax (except garderneri) | Class - 13: Aphyosemion (all other) |
| Class - 6: Fundulopanchax (garderneri) | Class - 14: Epiplatys | |
| Class - 7: Mesoaphyosemion (except calliurum) | Class - 15: All other Old World |
| Class - 8: Mesoaphyosemion (calliurum) |
WAKO Show Class Genera (abbreviations) |