The following non-avian biota have been observed on and around Heard Island and the adjacent McDonald Islands, which are part of the same Australian territory.[1] For the list of birds, see List of birds of Heard and McDonald Islands.
Included on this list are seven species of mammal, 23 taxa of fish, 25 species of terrestrial arthropods, one land snail, one flowering plant, and one species of kelp.
See main article: List of mammals of Heard Island and McDonald Islands.
| Scientific name | Authority | Common name | |
|---|---|---|---|
| Arctophoca gazella | (Peters, 1875) | Antarctic fur seal | |
| Arctophoca tropicalis | (Gray, 1872) | Subantarctic fur seal | |
| Balaenoptera physalus | (Linnaeus, 1758) | Fin whale | |
| Delphinidae sp. | Gray, 1821 | Dolphin sp. | |
| Hydrurga leptonyx | (Blainville, 1820) | Leopard seal | |
| Mirounga leonina | (Linnaeus, 1758) | Southern elephant seal | |
| Physeter macrocephalus | (Linnaeus, 1758) | Sperm whale |
| Scientific name | Authority | Common name | |
|---|---|---|---|
| Bathyraja eatonii | (Günther, 1876) | Eaton's skate | |
| Bathyraja irrasa | (Hureau and Ozouf-Costaz, 1980) | Kerguelen sandpaper skate | |
| Bathyraja murrayi | (Günther, 1880) | Murray's skate | |
| Champsocephalus gunnari | Lönnberg | Mackerel icefish | |
| Channichthys rhinoceratus | (Richardson, 1844) | Unicorn icefish | |
| Dissostichus eleginoides | (Smitt, 1898) | Patagonian toothfish | |
| Electrona antarctica | (Günther, 1878) | Lanternfish | |
| Electrona carlsbergi | (Tanning, 1932) | Lanternfish | |
| Gobionotothen acuta | Günther | Triangular rockcod | |
| Gymnoscopelus braueri | (Lönnberg, 1905) | Lanternfish | |
| Gymnoscopelus nicholsi | (Gilbert, 1911) | Nichol's lanternfish | |
| Gymnoscopelus opisthopterus | (Fraser-Brunner, 1949) | Lanternfish | |
| Krefftichthys anderssoni | (Lönnberg, 1905) | Lanternfish | |
| Lepidonotothen mizops | (Günther, 1880) | Toad rockcod | |
| Lepidonotothen squamifrons | Günther | Grey rockcod | |
| Muraenolepis sp. | Moray cod | ||
| Notolepis coatsi | (Dollo, 1908) | Antarctic jonasfish | |
| Notothenia coriiceps | (Richardson, 1844) | Black rockcod | |
| Notothenia rossii | (Richardson, 1844) | Marbled rockcod | |
| Nototheniidae sp. | Icefish | ||
| Paradiplospinus gracilis | Brauer | Snake mackerel | |
| Protomyctophum bolini | (Fraser-Brunner, 1949) | Lanternfish | |
| Zanclorhynchus spinifer | Günther | Horsefish |
| Scientific name | Authority | Common name | |
|---|---|---|---|
| Alaskozetes antarcticus | Mite | ||
| Amalopteryx maritima | True fly | ||
| Anatalanta aptera | True fly | ||
| Antarctonesiotes gracilipes | Beetle | ||
| Calycopteryx mosleyi minor (variation) | True fly | ||
| Calycopteryx mosleyi mosleyi | True fly | ||
| Canonopsis sericeus sericeus | Beetle | ||
| Cryptopygus antarcticus | Antarctic springtail | ||
| Ctenolepisma longicaudata | Bristle-tail | ||
| Ectemnorrhinus (s. str.) crassipes | Beetle | ||
| Ectemnorrhinus (s. str.) jelbarti | Beetle | ||
| Ectemnorrhinus forbesi | Beetle | ||
| Ectemnorrhinus hoseasoni | Beetle | ||
| Embryonopsis halticella | Moth | ||
| Globoppia intermedia | Hammer | Mite | |
| Halozetes marinus | (Lohmann) | Mite | |
| Ixodes kerguelensis | Tick | ||
| Meropathus chuni | Weevils | ||
| Notiopsylla kerguelensis | Flea | ||
| Parapsyllus magellanicus heardi | Flea | ||
| Parisotoma octooculata | Springtail | ||
| Pringleophaga heardensis | Clothes moth | ||
| Tineola bisiella | Clothes moth | ||
| Tullbergia antarctica | (Lubbock, 1876) | Springtail | |
| Tullbergia bisetosa | (Borner, 1903) | Springtail | |
| Tullbergia templei | Wise, 1970 | Springtail |