Hemitrygon fluviorum (Ogilby, 1908)

Open encyclopedia reference

The estuary stingray (Hemitrygon fluviorum), also called the estuary stingaree or brown stingray, is a species of stingray in the family Dasyatidae. Endemic to eastern Australia, it typically inhabits shallow, mangrove-lined tidal rivers, estuaries, and bays in southern Queensland and New South Wales. This yellow-brown to olive ray grows to at least 93 cm (37 in) across. It has a diamond-shaped pectoral fin disc and a mostly smooth, whip-like tail bearing both dorsal and ventral fin folds. It can additionally be identified by its long, narrow nostrils and the row of thorns along the midline of its back. While the estuary stingray has gained infamy for consuming farmed shellfish such as oysters, it mainly feeds on crustaceans and polychaete worms. It is aplacental viviparous, with the unborn young sustained to term by maternal histotroph ("uterine milk"). Once common, this species has apparently declined across much of its range, likely from a combination of habitat degradation, mortality from commercial and recreational fishing, and persecution by shellfish farmers.

Wikipedia contributors, Estuary stingray; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T22:46:57.919326+00:00. This reference remains separate from the taxonomic record.

Identity & source status

Scientific name

Hemitrygon fluviorum (Ogilby, 1908)

Name authority

(Ogilby, 1908)

Rank

species

Accepted status

accepted

Kingdom

Animalia

Phylum

Chordata

Class

Elasmobranchii

Order

Myliobatiformes

Family

Dasyatidae

Genus

Hemitrygon

Extinction status

Not supplied by this source

Source habitat flags: Marine: yes · Freshwater: no · Terrestrial: no. These do not form a complete habitat description.

Classification family tree

Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.

1. domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
2. kingdomAnimalia
3. phylumChordata
4. subphylumVertebrata
5. infraphylumGnathostomata
6. parvphylumChondrichthyes
7. classElasmobranchii
8. subclassNeoselachii
9. infraclassBatoidea
10. orderMyliobatiformes
11. familyDasyatidae Jordan & Gilbert, 1879
12. genusHemitrygon Müller & Henle, 1838
13. speciesHemitrygon fluviorum (Ogilby, 1908)

Close classified relatives

These entries share the source’s genus, Hemitrygon. They are not necessarily the closest relatives established by molecular evidence.

Browse 85 records assigned to Dasyatidae.

Names & synonyms

Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.

Source literature & publication evidence

References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.

1. https://www.marinespecies.org/aphia.php?p=taxdetails&id=1042847 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references

Origins, evidence & remaining research

Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.

Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record. A suitable sourced image remains to be added.

Dataset citation & attribution

This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11

Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.

Stable key: col:3KTRC. Classification follows source parent identifiers. English common names may vary by region.