Australia: Fauna

Estimated Total Number Living Species: ~566,398 Flora and Fauna

(Non-human species. This is the total number that is estimated to exist but have not been identified. Numbers are approximate due to various reporting methods by various qualified organizations.)

Total Number of Identified Living Species: 151,074
(Australian Department of Climate Change, Energy, the Environment and Water)

• Identified Fauna: 106,831 species – about 1.23% of the world’s ~8.7 million animal species.
  • Invertebrates – 98,703
    • 62,338 insects 
    • 6,615 arachnids
    • 7,266 crustaceans
    • 8,700 mollusks
    • 1,705 Cnidaria (i.e., coral, anemones, jellyfish) 
    • 5,918 worms 
    • 6,161 others
  • Vertebrates – 8,128
    • ~5,000 fishes
    • 828 birds
    • 386 mammals
    • 917 reptiles
    • 227 amphibians
    • 770 others