grey threadfin sea-bass

{{Short description|Species of fish}}

{{Speciesbox

| image =

| status = NT

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Bearez, P. |author2=Merlen, G. |author3=Rivera, F. |date=2010 |title=Cratinus agassizii |volume=2010 |page=e.T183659A8153285 |doi=10.2305/IUCN.UK.2010-3.RLTS.T183659A8153285.en |access-date=20 November 2021}}

| display_parents = 2

| parent_authority = Steindachner, 1878

| taxon = Cratinus agassizii

| authority = Steindachner, 1878

}}

The grey threadfin sea-bass (Cratinus agassizii) is a species of marine ray finned fish which is a member of the subfamily Serraninae of the family Serranidae, which also includes the groupers and anthias. It is found in the eastern Pacific Ocean off Ecuador and northern Peru and in the Galapagos Islands.{{FishBase|Cratinus|agassizii|month=December|year=2019}}