Dalhousie hardyhead

The Dalhousie hardyhead (Craterocephalus dalhousiensis) is a species of silverside in the family Atherinidae.[1] It is endemic to the warm waters of the Dalhousie Springs in the Lake Eyre basin, Australia, along with the similar Craterocephalus gloveri.[2] It inhabits shady areas in tropical freshwater streams at 20-39 °C, but has been recorded at 41.8 °C. Its food consists of gastropods, aquatic plants, green filamentous algae, detritus and small invertebrates; food is mainly taken from the substrate.[3]

Dalhousie hardyhead
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Atheriniformes
Family: Atherinidae
Genus: Craterocephalus
Species:
C. dalhousiensis
Binomial name
Craterocephalus dalhousiensis
Ivantsoff & Glover, 1974

This is the only species in the genus Craterocephalus known to be sexually dimporphic.[2]

References

  1. Wager, R. (1996). "Craterocephalus dalhousiensis". IUCN Red List of Threatened Species. IUCN. 1996: e.T5489A11210225. Retrieved 21 July 2019.
  2. Bray, D.J. & Thompson, V.J. (2017). "Craterocephalus dalhousiensis". Fishes of Australia. Museums Victoria. Retrieved 21 July 2019.
  3. Froese, Rainer and Pauly, Daniel, eds. (2019). "Craterocephalus dalhousiensis" in FishBase. April 2019 version.


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