Chaenopsis deltarrhis

{{Short description|Species of fish}}

{{Speciesbox

| status = DD

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Bessudo, S. |author2=Dominici-Arosemena, A. |author3=Espinosa, H. |author4=Hastings, P. |date=2010 |title=Chaenopsis deltarrhis |volume=2010 |page=e.T183500A8124014 |doi=10.2305/IUCN.UK.2010-3.RLTS.T183500A8124014.en |access-date=20 November 2021}}

| taxon = Chaenopsis deltarrhis

| authority = J. E. Böhlke, 1957

}}

Chaenopsis deltarrhis, the Delta pikeblenny, is a species of chaenopsid blenny found from Costa Rica to Colombia, in the eastern central Pacific ocean. It can reach a maximum length of {{convert|7.5|cm|in}} TL. This species feeds primarily on zooplankton.{{FishBase |genus= Chaenopsis|species= deltarrhis| month = February | year = 2013}}