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Fish Identification: Find Species

Class: Teleostei
Order: Acanthuriformes
Family: Acanthuridae Surgeonfishes, tangs, unicornfishes
Subfamily: Nasinae
Genus: Naso

(See list of species below)


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20 species (see list below)
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Photo by Yin, Robert

Indo-Pacific
Max. Length 100 cm TL
Naso annulatus (Quoy & Gaimard, 1825)

Photo by Photo by Yin, Robert
 
Naso annulatus
[Whitemargin unicornfish]

Photo by Randall, J.E.

Indo-Pacific
Max. Length 90 cm FL
Naso brachycentron (Valenciennes, 1835)

Photo by Photo by Randall, J.E.
 
Naso brachycentron
[Humpback unicornfish]

Photo by Randall, J.E.

Indo-Pacific
Max. Length 60 cm TL
Naso brevirostris (Cuvier, 1829)

Photo by Photo by Randall, J.E.
 
Naso brevirostris
[Spotted unicornfish]

Photo by Randall, J.E.

Western Central Pacific
Max. Length 40 cm SL
Naso caeruleacauda Randall, 1994

Photo by Photo by Randall, J.E.
 
Naso caeruleacauda
[Blue unicorn]

Photo by Randall, J.E.

Pacific Ocean
Max. Length 45.6 cm SL
Naso caesius Randall & Bell, 1992

Photo by Photo by Randall, J.E.
 
Naso caesius
[Gray unicornfish]

Photo by Rusconi, G.

Indian Ocean
Max. Length 45 cm SL
Naso elegans (Rüppell, 1829)

Photo by Photo by Rusconi, G.
 
Naso elegans
[Elegant unicornfish]

Photo by Muséum-Aquarium de Nancy/B. Alenda

Indo-West Pacific
Max. Length 80 cm FL
Naso fageni Morrow, 1954

Photo by Photo by Muséum-Aquarium de Nancy/B. Alenda
 
Naso fageni
[Horseface unicornfish]

Photo by Randall, J.E.

Indo-Pacific
Max. Length 75 cm FL
Naso hexacanthus (Bleeker, 1855)

Photo by Photo by Randall, J.E.
 
Naso hexacanthus
[Sleek unicornfish]

Photo by JJPhoto

East Indian Ocean from Ch
Max. Length 46 cm SL
Naso lituratus (Forster, 1801)

Photo by Photo by JJPhoto
 
Naso lituratus
[Orangespine unicornfish]

Photo by Honeycutt, K.

Western Pacific
Max. Length 60 cm SL
Naso lopezi Herre, 1927

Photo by Photo by Honeycutt, K.
 
Naso lopezi
[Elongate unicornfish]

Photo by Randall, J.E.

Pacific Ocean
Max. Length 60 cm TL
Naso maculatus Randall & Struhsaker, 1981

Photo by Photo by Randall, J.E.
 
Naso maculatus
[]

Photo by Hazes, B.

Indo-West Pacific
Max. Length 75 cm SL
Naso mcdadei Johnson, 2002

Photo by Photo by Hazes, B.
 
Naso mcdadei
[Squarenose unicornfish]

Photo by Randall, J.E.

Indo-West Pacific
Max. Length 30 cm SL
Naso minor (Smith, 1966)

Photo by Photo by Randall, J.E.
 
Naso minor
[Slender unicorn]

Photo by Modder, T.

Western Pacific
Max. Length 49 cm SL
Naso reticulatus Randall, 2001

Photo by Photo by Modder, T.
 
Naso reticulatus
[Reticulate unicornfish]

Photo by Ho, H.-C.

Western Pacific
Max. Length 34.7 cm SL
Naso tergus Ho, Shen & Chang, 2011

Photo by Photo by Ho, H.-C.
 
Naso tergus
[]

Photo by Greenfield, J.

Indo-Pacific
Max. Length 40 cm FL
Naso thynnoides (Cuvier, 1829)

Photo by Photo by Greenfield, J.
 
Naso thynnoides
[Oneknife unicornfish]

Photo by Randall, J.E.

Western Indian Ocean
Max. Length 60 cm SL
Naso tonganus (Valenciennes, 1835)

Photo by Photo by Randall, J.E.
 
Naso tonganus
[Bulbnose unicornfish]

Photo by Gloerfelt-Tarp, T.

Western Indian Ocean
Max. Length 60 cm SL
Naso tuberosus Lacepède, 1801

Photo by Photo by Gloerfelt-Tarp, T.
 
Naso tuberosus
[Humpnose unicornfish]

Photo by Randall, J.E.

Indo-Pacific
Max. Length 70 cm FL
Naso unicornis (Forsskål, 1775)

Photo by Photo by Randall, J.E.
 
Naso unicornis
[Bluespine unicornfish]

Photo by Patzner, R.

Indo-pan-Pacific
Max. Length 60 cm TL
Naso vlamingii (Valenciennes, 1835)

Photo by Photo by Patzner, R.
 
Naso vlamingii
[Bignose unicornfish]


Sort by: Species Length Year
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Scientific Name English Name Distribution Max. Length (cm) Year
Naso annulatus Whitemargin unicornfish Indo-Pacific 100 TL 1825
Naso brachycentron Humpback unicornfish Indo-Pacific 90 FL 1835
Naso brevirostris Spotted unicornfish Indo-Pacific 60 TL 1829
Naso caeruleacauda Blue unicorn Western Central Pacific 40 SL 1994
Naso caesius Gray unicornfish Pacific Ocean 45.6 SL 1992
Naso elegans Elegant unicornfish Indian Ocean 45 SL 1829
Naso fageni Horseface unicornfish Indo-West Pacific 80 FL 1954
Naso hexacanthus Sleek unicornfish Indo-Pacific 75 FL 1855
Naso lituratus Orangespine unicornfish East Indian Ocean from Ch 46 SL 1801
Naso lopezi Elongate unicornfish Western Pacific 60 SL 1927
Naso maculatus Pacific Ocean 60 TL 1981
Naso mcdadei Squarenose unicornfish Indo-West Pacific 75 SL 2002
Naso minor Slender unicorn Indo-West Pacific 30 SL 1966
Naso reticulatus Reticulate unicornfish Western Pacific 49 SL 2001
Naso tergus Western Pacific 34.7 SL 2011
Naso thynnoides Oneknife unicornfish Indo-Pacific 40 FL 1829
Naso tonganus Bulbnose unicornfish Western Indian Ocean 60 SL 1835
Naso tuberosus Humpnose unicornfish Western Indian Ocean 60 SL 1801
Naso unicornis Bluespine unicornfish Indo-Pacific 70 FL 1775
Naso vlamingii Bignose unicornfish Indo-pan-Pacific 60 TL 1835



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