n = 21
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Trematomus amphitreta | (Cziko & Cheng, 2006) | Trematomus amphitreta | Nototheniidae | |
| Trematomus bernacchii | Boulenger, 1902 | Trematomus bernacchii | Nototheniidae | Emerald rockcod |
| Trematomus bernacchii vicarius | Lönnberg, 1905 | Trematomus vicarius | Nototheniidae | Orange notothen |
| Trematomus bernachii | Boulenger, 1902 | Trematomus bernacchii | Nototheniidae | Emerald rockcod |
| Trematomus borchgrevinki | Boulenger, 1902 | Pagothenia borchgrevinki | Nototheniidae | Bald notothen |
| Trematomus brachysoma | Pappenheim, 1912 | Trematomus brachysoma | Nototheniidae | Stocky rockcod |
| Trematomus centronotus | Regan, 1914 | Trematomus pennellii | Nototheniidae | Sharp-spined notothenia |
| Trematomus eulepidotus | Regan, 1914 | Trematomus eulepidotus | Nototheniidae | Blunt scalyhead |
| Trematomus hansoni | Boulenger, 1902 | Trematomus hansoni | Nototheniidae | Striped rockcod |
| Trematomus hansoni georgianus | Lönnberg, 1905 | Trematomus hansoni | Nototheniidae | Striped rockcod |
| Trematomus lepidorhinus | (Pappenheim, 1911) | Trematomus lepidorhinus | Nototheniidae | Slender scalyhead |
| Trematomus loennbergi | Regan, 1913 | Trematomus loennbergii | Nototheniidae | Scaly rockcod |
| Trematomus loennbergii | Regan, 1913 | Trematomus loennbergii | Nototheniidae | Scaly rockcod |
| Trematomus newnesi | Boulenger, 1902 | Trematomus newnesi | Nototheniidae | Dusky rockcod |
| Trematomus nicolai | (Boulenger, 1902) | Trematomus nicolai | Nototheniidae | Spotted notothen |
| Trematomus peninsulae | (Daniels, 1981) | Trematomus peninsulae | Nototheniidae | Pithead |
| Trematomus pennellii | Regan, 1914 | Trematomus pennellii | Nototheniidae | Sharp-spined notothenia |
| Trematomus scotti | (Boulenger, 1907) | Trematomus scotti | Nototheniidae | Crowned rockcod |
| Trematomus skotti | (Boulenger, 1907) | Trematomus scotti | Nototheniidae | Crowned rockcod |
| Trematomus tokarevi | Andriashev, 1978 | Trematomus tokarevi | Nototheniidae | Bigeye notothen |
| Trematomus vicarius | Lönnberg, 1905 | Trematomus vicarius | Nototheniidae | Orange notothen |