Estuary Stingray (species: Dasyatis fluviorum) in taxonomy (Gaia Guide)
Dasyatis fluviorum
Estuary Stingray


©Rhys Jones from UmeĆ„, Sweden

©Australian National Fish Collection, CSIRO: Estuary Stingray (Dasyatis fluviorum)
Kingdom Animalia
Phylum Chordata
Class Elasmobranchii
Order Myliobatiformes
Family Dasyatidae
Genus Dasyatis
Species Dasyatis fluviorum

Colours

    

Distinguishing features

The estuary stingray has a diamond-shaped disc about as wide as long. The snout is wide and triangular, and tapers to a point. The tail measures twice as long as the disc, and is broad and flattened at the base. On its upper surface is has at least one, often two serrated stinging spines and a distinctive row of of spines starting at the middle of the back down to the stinging spines.

Size

  • Up to 130 cm (TL)
  • Up to 93 cm (Disc Width) - applies to Disc Width

Depth range

  • From 0 m to 28 m - applies to Occurs most commonly in shallow depths but has been recorded to 28m

Synonyms

Comments

The Estuary Stingray is listed as Vulnerable by the IUCN.

by Damon Bolton

Distribution


©Atlas of Living Australia: Australian distribution

Distribution and habitat preferences

Tidal rivers and the intertidal flats of estuaries and bays, which are lined with mangroves and have sandy to muddy bottoms. This species is rarely found outside sheltered areas, though it has been recorded to a depth of 28m in offshore waters. It inhabits marine, brackish and may be able to tolerate fresh water.

Web resources

Danger

  • requires treatment - Although the Estuary Stingray has serrated stinging spines, such stings are very rare.