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
C. dalhousiensis
Binomial name
Craterocephalus dalhousiensis
Ivantsoff & Glover, 1974

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


  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.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.