{{Short description|Genus of ray-finned fishes}} {{Automatic taxobox | image = FMIB 34069 Cryptotomus Beryllinus.jpeg | image_caption = ''Nicholsina usta'' | taxon = Nicholsina | authority = Fowler, 1915<ref name = CofF>{{Cof record|genid=7202|title=''Nicholsina''|access-date = 16 February 2020}}</ref> | type_species = ''Cryptotomus beryllinus'' (as a synonym of ''Nicholsina usta'') | type_species_authority = Jordan & Swain, 1884<ref name = CofF/> }}

'''Nicholsina''' is a genus of marine ray-finned fishes, parrotfishes from the family Labridae. They are found in the Atlantic and eastern Pacific Oceans. The generic name honours the American ichthyologist John Treadwell Nichols (1883-1958) who was curator of fishes at the American Museum of Natural History.<ref name = Fishbase>{{FishBase genus|genus=Nicholsina|month=December|year=2019}}</ref>

==Species== There are currently three species classified in the genus:<ref name = Fishbase/>

*''Nicholsina collettei'' <small>Schultz 1968</small> *''Nicholsina denticulata'' <small>(Evermann & Radcliffe, 1917)</small> (Loosetooth parrotfish) *''Nicholsina usta'' <small>(Valenciennes, 1840)</small> (Emerald parrotfish)

==References== {{Reflist}}

{{Taxonbar|from=Q3021722}}

Category:Labridae Category:Taxa named by Henry Weed Fowler Category:Actinopterygii genera

{{Labridae-stub}}