Filament cusk

{{Short description|Species of fish}}

{{Speciesbox

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn|author=Ho, H. |year=2020 |title= Homostolus acer |page= e.T137552007A137564085 |doi=10.2305/IUCN.UK.2020-1.RLTS.T137552007A137564085.en |access-date=2 May 2024}}

| taxon = Homostolus acer

| display_parents = 2

| authority = H. M. Smith & Radcliffe, 1913

| synonyms = Homostolus japonicus Matsubara, 1943

}}

The filament cusk (Homostolus acer) is a species of cusk-eel found in the western Pacific Ocean from the waters off of Japan to Australia and New Caledonia where it occurs at depths of from {{convert|300|to|1000|m|ft}}. This species grows to a length of {{convert|18.4|cm|in}} SL and is of minor importance to commercial fisheries. It is the only known member of its genus.{{FishBase |genus= Homostolus|species= acer| month = June | year = 2012}}