Trachichthys

{{Short description|Genus of fishes}}

{{Speciesbox

| image = Natural history of Victoria (Plate 114) (6007966957).jpg

| genus = Trachichthys

| parent_authority = G. Shaw, 1799

| species = australis

| authority = G. Shaw, 1799

| synonyms = {{Species list

| Amphiprion carinatus | Schneider, 1801

| Trachichthys jacksoniensis | MacLeay, 1881

}}

| synonyms_ref = {{cite WoRMS |title=Trachichthys australis |id=283027 |access-date=26 January 2024}}

}}

Trachichthys australis, the southern roughy, is a species of slimehead and the only member of the genus Trachichthys, from the Ancient Greek τραχύς (trakhús), meaning "rough", and ἰχθύς (ikhthús), meaning "fish". It is native to the waters off Australia, where it is found around coral reefs between {{convert|1|and|1557|m|ft}} in depth. It can grow to a maximum length of {{convert|15.0|cm|in}} SL.{{FishBase |genus=Trachichthys |species=australis |month=January |year=2017}}