Prognathodes carlhubbsi

{{Short description|Species of fish}}

{{Speciesbox

| image =

| status = NT

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Pyle, R. |author2=Allen, G.R. |author3=Zapata, F. |author4=Lea, B. |author5=Merlen, G. |author6=Robertson, R. |author7=Rivera, F. |author8=Edgar, G. |author9=Rocha, L.A. |date=2010 |title=Prognathodes carlhubbsi |volume=2010 |page=e.T165658A6083175 |doi=10.2305/IUCN.UK.2010-4.RLTS.T165658A6083175.en |access-date=20 November 2021}}

| taxon = Prognathodes carlhubbsi

| authority = Nalbant, 1995

| synonyms =

}}

Prognathodes carlhubbsi, the southern scythemarked butterflyfish or southern scythe butterflyfish, is a species of butterflyfish found at rocky reefs in the tropical Eastern Pacific, where found at depths of {{convert|12|-|270|m|ft}} at the Galápagos Islands, Cocos Island, Malpelo Island, and off northwestern Peru.{{cite web | url = https://biogeodb.stri.si.edu/sftep/en/thefishes/species/2662 | title = Species: Prognathodes carlhubbsi, Southern scythe butterflyfish, Southern scythe-marked butterflyfish | accessdate = 3 January 2021| publisher = Smithsonian Tropical Research Institute | work = Shorefishes of the Eastern Pacific online information system}}Hooker, Y. (2009). [http://www.scielo.org.pe/pdf/rpb/v16n1/a03v16n1.pdf Nuevos registros de peces costeros tropicales para el Perú.] Rev. Peru. Biol. 16(1): 033-041. Until P. carlhubbsi was described as a separate species in 1995, populations in these regions were included in P. falcifer. When separated, the true P. falcifer is restricted to more northernly regions (off California and Mexico), and it has whitish-grey (not clear yellow) belly and flanks, the black line through the eye is paler and less distinct, and the angle of the inverted black "V" on the side is shallower.Adams, J. (2009). [http://reefbuilders.com/2009/12/28/prognathodes-carlhubbsi-will-the-real-scythe-butterflyfish-please-swim-up/ Prognathodes carlhubbsi: will the real scythe butterflyfish please swim up?] Reef Builders. Accessed 24 May 2011.