Plectrypops retrospinis

{{Short description|Species of fish}}

{{Speciesbox

| image = Plectrypops retrospinis - pone.0010676.g037.png

| image_caption =

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Moore, J. |author2=Polanco Fernandez, A. |author3=Russell, B. |author4=McEachran, J.D. |name-list-style = amp| year=2015 |title=Plectrypops retrospinis |page=e.T16443285A16509827 |doi=10.2305/IUCN.UK.2015-4.RLTS.T16443285A16509827.en |access-date=6 January 2022}}

| taxon = Plectrypops retrospinis

| authority = (Guichenot, 1853)

| synonyms =

Holocentrum retrospinis Guichenot, 1853

}}

Plectrypops retrospinis, the cardinal soldierfish, is a species of soldierfish from the genus Plectrypops. It can be found in the Western Atlantic Ocean, in Bermuda, southern Florida, and from the Bahamas to Brazil.{{Cite web|title=Plectrypops retrospinis country list|url=https://www.fishbase.de/Country/CountryList.php?ID=3253&GenusName=Plectrypops&SpeciesName=retrospinis|access-date=2021-09-05|website=www.fishbase.de}} It can be found in holes and caves in coral reefs. During the day, it remains in deep recesses.{{Cite web|title=Plectrypops retrospinis|url=https://www.fishbase.de/summary/Plectrypops-retrospinis.html|access-date=2021-09-05|website=www.fishbase.de}}