| Gene | Description | Domains | Gene lists |
|---|---|---|---|
| Spis25058_1 | mitochondrially encoded cytochrome c oxidase I | COX1, COX2 | — |
| Spis_XP_022778429_1 | mitochondrially encoded cytochrome c oxidase I | COX1, COX2 | — |
| Spis_YP_002149709_1 | mitochondrially encoded cytochrome c oxidase II | COX2, COX2_TM | — |