{{Short description|Species of fish}} {{Speciesbox | image = TrianectesBucephalusRLS.jpg | status = LC | status_system = IUCN3.1 | status_ref = <ref name="iucn status 20 November 2021">{{cite iucn |author=Williams, J. |date=2014 |title=''Trianectes bucephalus'' |volume=2014 |article-number=e.T178960A1552829 |doi=10.2305/IUCN.UK.2014-3.RLTS.T178960A1552829.en |access-date=20 November 2021}}</ref> | taxon = Trianectes bucephalus | display_parents = 2 | authority = McCulloch & Waite, 1918 }}

The '''bullhead triplefin''' ('''''Trianectes bucephalus''''') is a fish of the family Tripterygiidae and only member of the genus '''''Trianectes'''''

== Description == Its length is up to about 7&nbsp;cm.<ref name="Fishbase" />

This nocturnal species is infrequently observed, during the day it often shelters beneath small rocks.<ref name="FofA">{{cite web|url=http://fishesofaustralia.net.au/Home/species/1135|title=''Trianectes bucephalus''|author=Bray, D.J.|year=2018|work=Fishes of Australia|publisher=Museums Victoria|access-date=1 Jun 2019}}</ref>

== Ecosystem == The bullhead triplefin is found in the eastern Indian Ocean around southern Australia, from Western Australia to Victoria and Tasmania at depths down to 5 m. The animal inhabits intertidal areas.<ref name="Fishbase">{{Fishbase|Trianectes|bucephalus|month=April|year=2019}}</ref>

==References== {{reflist}}

{{Taxonbar|from=Q2118023}}

Category:Tripterygiidae Category:Marine fish of Southern Australia bullhead triplefin