n = 24
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Patagonotothen brevicauda | (Lönnberg, 1905) | Patagonotothen brevicauda | Nototheniidae | Patagonian rockcod |
| Patagonotothen brevicauda brevicauda | (Lönnberg, 1905) | Patagonotothen brevicauda | Nototheniidae | Patagonian rockcod |
| Patagonotothen brevicauda guntheri | (Norman, 1937) | Patagonotothen guntheri | Nototheniidae | Yellowfin notothen |
| Patagonotothen brevicauda shagensis | Balushkin & Permitin, 1982 | Patagonotothen shagensis | Nototheniidae | |
| Patagonotothen canina | (Smitt, 1897) | Patagonotothen canina | Nototheniidae | |
| Patagonotothen cornucola | (Richardson, 1844) | Patagonotothen cornucola | Nototheniidae | |
| Patagonotothen elegans | (Günther, 1880) | Patagonotothen elegans | Nototheniidae | |
| Patagonotothen guentheri shagensis | Balushkin & Permitin, 1982 | Patagonotothen shagensis | Nototheniidae | |
| Patagonotothen guntheri | (Norman, 1937) | Patagonotothen guntheri | Nototheniidae | Yellowfin notothen |
| Patagonotothen guntheri shagensis | Balushkin & Permitin, 1982 | Patagonotothen shagensis | Nototheniidae | |
| Patagonotothen jordani | (Thompson, 1916) | Patagonotothen jordani | Nototheniidae | |
| Patagonotothen kreffti | Balushkin & Stehmann, 1993 | Patagonotothen kreffti | Nototheniidae | |
| Patagonotothen longipes | (Steindachner, 1876) | Patagonotothen longipes | Nototheniidae | |
| Patagonotothen longipes ramsayi | (Regan, 1913) | Patagonotothen ramsayi | Nototheniidae | Longtail southern cod |
| Patagonotothen occidentalis | (Balushkin, 1976) | Genus Species | New species | |
| Patagonotothen ramsayi | (Regan, 1913) | Patagonotothen ramsayi | Nototheniidae | Longtail southern cod |
| Patagonotothen shagensis | Balushkin & Permitin, 1982 | Patagonotothen shagensis | Nototheniidae | |
| Patagonotothen sima | (Richardson, 1845) | Patagonotothen sima | Nototheniidae | |
| Patagonotothen squamiceps | (Peters, 1877) | Patagonotothen squamiceps | Nototheniidae | |
| Patagonotothen tesselata | (Richardson, 1845) | Patagonotothen tessellata | Nototheniidae | Black southern cod |
| Patagonotothen tessellata | (Richardson, 1845) | Patagonotothen tessellata | Nototheniidae | Black southern cod |
| Patagonotothen thompsoni | Balushkin, 1993 | Patagonotothen thompsoni | Nototheniidae | |
| Patagonotothen trigramma | (Regan, 1913) | Patagonotothen trigramma | Nototheniidae | |
| Patagonotothen wiltoni | (Regan, 1913) | Patagonotothen wiltoni | Nototheniidae |