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Fish Identification: Find Species


Family: Apteronotidae Ghost knifefishes



(See list of species below)



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95 species
(see list below)
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Photo by Luckenbill, K.

South America
Max. Length 25 cm TL
Adontosternarchus balaenops (Cope, 1878)

Photo by Photo by Luckenbill, K.
 
Adontosternarchus balaenops
[]

Photo by Luckenbill, K.

South America
Max. Length 18.6 cm TL
Adontosternarchus clarkae Mago-Leccia, Lundberg & Baskin, 1985

Photo by Photo by Luckenbill, K.
 
Adontosternarchus clarkae
[]

Photo by Luckenbill, K.

South America
Max. Length 18.6 cm TL
Adontosternarchus devenanzii Mago-Leccia, Lundberg & Baskin, 1985

Photo by Photo by Luckenbill, K.
 
Adontosternarchus devenanzii
[]
No picture found

Max. Length 18.5 cm TL

 
Adontosternarchus duartei
[]

Photo by Sabaj-Perez, M.

South America
Max. Length 21.8 cm TL
Adontosternarchus nebulosus Lundberg & Cox Fernandes, 2007

Photo by Photo by Sabaj-Perez, M.
 
Adontosternarchus nebulosus
[]

Photo by Luckenbill, K.

South America
Max. Length 32.2 cm TL
Adontosternarchus sachsi (Peters, 1877)

Photo by Photo by Luckenbill, K.
 
Adontosternarchus sachsi
[]
No picture found

Max. Length 32.1 cm TL

 
Apteronotus acidops
[]

Photo by McKenzie, M.

South America
Max. Length 50 cm TL
Apteronotus albifrons (Linnaeus, 1766)

Photo by Photo by McKenzie, M.
 
Apteronotus albifrons
[Black ghost]
No picture found

Max. Length 27.1 cm TL

 
Apteronotus anu
[]
No picture found

Max. Length 30.8 cm TL

 
Apteronotus apurensis
[]
No picture found

Max. Length 15.5 cm TL

 
Apteronotus baniwa
[]

Photo by Childs, K.

South America
Max. Length 38 cm SL
Apteronotus bonapartii (Castelnau, 1855)

Photo by Photo by Childs, K.
 
Apteronotus bonapartii
[]
No picture found

Max. Length 29 cm TL

 
Apteronotus brasiliensis
[]
No picture found


 
Apteronotus camposdapazi
[]
No picture found

Max. Length 28.7 cm TL

 
Apteronotus caudimaculosus
[]

Photo by Galvis, G./Mojica, J.I./Camargo, M.

South America
Max. Length 18.9 cm TL
Apteronotus cuchillejo (Schultz, 1949)

Photo by Photo by Galvis, G./Mojica, J.I./Camargo, M.
 
Apteronotus cuchillejo
[]

Photo by Galvis, G./Mojica, J.I./Camargo, M.

South America
Max. Length 39 cm TL
Apteronotus cuchillo Schultz, 1949

Photo by Photo by Galvis, G./Mojica, J.I./Camargo, M.
 
Apteronotus cuchillo
[]
No picture found

Max. Length 25.3 cm TL

 
Apteronotus curvioperculata
[]

Photo by Equipe de Ictiologia do Nupélia

South America
Max. Length 32.8 cm TL
Apteronotus ellisi (Alonso de Arámburu, 1957)

Photo by Photo by Equipe de Ictiologia do Nupélia
 
Apteronotus ellisi
[]
No picture found

Max. Length 32 cm SL

 
Apteronotus eschmeyeri
[]
No picture found

Max. Length 27.4 cm TL

 
Apteronotus ferrarisi
[]
No picture found

Max. Length 19.0 cm TL

 
Apteronotus galvisi
[]
No picture found

Max. Length 25.3 cm TL

 
Apteronotus jurubidae
[]

Photo by Landines, M.

South America
Max. Length 26.9 cm TL
Apteronotus leptorhynchus (Ellis, 1912)

Photo by Photo by Landines, M.
 
Apteronotus leptorhynchus
[]

Photo by Cox Fernandes, C.

South America
Max. Length 33.3 cm TL
Apteronotus lindalvae de Santana & Cox Fernandes, 2012

Photo by Photo by Cox Fernandes, C.
 
Apteronotus lindalvae
[]
No picture found

Max. Length 18 cm TL

 
Apteronotus macrolepis
[]
No picture found

Max. Length 26 cm TL

 
Apteronotus macrostomus
[]

Photo by Ospina Pabon, J.G./Agudelo, H.

South America
Max. Length 129 cm TL
Apteronotus magdalenensis (Miles, 1945)

Photo by Photo by Ospina Pabon, J.G./Agudelo, H.
 
Apteronotus magdalenensis
[]
No picture found


 
Apteronotus magoi
[]
No picture found

Max. Length 27.3 cm SL

 
Apteronotus mariae
[]
No picture found

Max. Length 22.1 cm TL

 
Apteronotus milesi
[]
No picture found

Max. Length 20.6 cm TL

 
Apteronotus pemon
[]
No picture found

Max. Length 27.2 cm TL

 
Apteronotus rostratus
[]
No picture found

Max. Length 27 cm TL

 
Apteronotus spurrellii
[]
No picture found

Max. Length 33.9 cm TL

 
Compsaraia compsa
[]
No picture found

Max. Length 23.5 cm TL

 
Compsaraia iara
[]

Photo by JJPhoto

South America
Max. Length 22.6 cm SL
Compsaraia samueli Albert & Crampton, 2009

Photo by Photo by JJPhoto
 
Compsaraia samueli
[Pelican Knifefish]
No picture found

Max. Length 23.8 cm TL

 
Megadontognathus cuyuniensis
[]
No picture found

Max. Length 16 cm TL

 
Megadontognathus kaitukaensis
[]
No picture found

Max. Length 44 cm TL

 
Orthosternarchus tamandua
[]
No picture found

Max. Length 38.1 cm TL

 
Parapteronotus hasemani
[]
No picture found

Max. Length 15.2 cm SL

 
Pariosternarchus amazonensis
[]
No picture found

Max. Length 30.8 cm TL

 
Platyurosternarchus crypticus
[]

Photo by Gama, C.S.

South America
Max. Length 40 cm TL
Platyurosternarchus macrostoma (Günther, 1870)

Photo by Photo by Gama, C.S.
 
Platyurosternarchus macrostoma
[]
No picture found

Max. Length 18.4 cm TL

 
Porotergus duende
[]
No picture found

Max. Length 24 cm TL

 
Porotergus gimbeli
[]
No picture found

Max. Length 85 cm TL

 
Porotergus gymnotus
[]
No picture found

Max. Length 18.5 cm TL

 
Sternarchella calhamazon
[]
No picture found

Max. Length 22.6 cm TL

 
Sternarchella duccis
[]
No picture found

Max. Length 22 cm TL

 
Sternarchella orinoco
[]
No picture found

Max. Length 30 cm TL

 
Sternarchella orthos
[]
No picture found

Max. Length 20.8 cm TL

 
Sternarchella patriciae
[]
No picture found

Max. Length 19.9 cm TL

 
Sternarchella raptor
[]
No picture found

Max. Length 40.4 cm TL

 
Sternarchella rex
[]

Photo by Mensch, R.

South America
Max. Length 40 cm TL
Sternarchella schotti (Steindachner, 1868)

Photo by Photo by Mensch, R.
 
Sternarchella schotti
[]
No picture found

Max. Length 40 cm TL

 
Sternarchella sima
[]
No picture found

Max. Length 21.4 cm TL

 
Sternarchogiton labiatus
[]
No picture found

Max. Length 25 cm TL

 
Sternarchogiton nattereri
[]
No picture found

Max. Length 30 cm TL

 
Sternarchogiton porcinum
[]
No picture found

Max. Length 21.7 cm SL

 
Sternarchogiton preto
[]
No picture found

Max. Length 17.8 cm TL

 
Sternarchogiton zuanoni
[]
No picture found

Max. Length 45.5 cm TL

 
Sternarchorhamphus muelleri
[]
No picture found

Max. Length 60 cm TL

 
Sternarchorhynchus axelrodi
[Axelrod’s tube-snouted ghost knifefish]
No picture found

Max. Length 26.1 cm TL

 
Sternarchorhynchus britskii
[Britski’s tube-snouted ghost knifefish]
No picture found

Max. Length 22.6 cm TL

 
Sternarchorhynchus caboclo
[Cabocolo tube-snouted ghost knifefish]
No picture found

Max. Length 16.4 cm TL

 
Sternarchorhynchus chaoi
[Chao’s tube-snouted ghost knifefish]
No picture found

Max. Length 33.1 cm TL

 
Sternarchorhynchus cramptoni
[Crampton’s tube-snouted ghost knifefish]
No picture found

Max. Length 18.1 cm TL

 
Sternarchorhynchus curumim
[Curumim tube-snouted ghost knifefish]
No picture found

Max. Length 40.6 cm TL

 
Sternarchorhynchus curvirostris
[]
No picture found

Max. Length 20.1 cm TL

 
Sternarchorhynchus freemani
[Freeman’s tube-snouted ghost knifefish]
No picture found

Max. Length 20 cm TL

 
Sternarchorhynchus galibi
[Galibi tube-snouted ghost knifefish]
No picture found

Max. Length 15.2 cm TL

 
Sternarchorhynchus gnomus
[Gnomus tube-snouted ghost knifefish]
No picture found

Max. Length 30.6 cm TL

 
Sternarchorhynchus goeldii
[Goeldi’s tube-snouted ghost knifefish]
No picture found

Max. Length 24.9 cm TL

 
Sternarchorhynchus hagedornae
[Hagedorn’s tube-snouted ghost knifefish]
No picture found

Max. Length 24.6 cm TL

 
Sternarchorhynchus higuchii
[Higuchi’s tube-snouted ghost knifefish]
No picture found

Max. Length 22.2 cm TL

 
Sternarchorhynchus inpai
[Inpa tube-snouted ghost knifefish]
No picture found

Max. Length 20 cm TL

 
Sternarchorhynchus jaimei
[Jamei’s tube-snouted ghost knifefish]
No picture found

Max. Length 19.7 cm TL

 
Sternarchorhynchus kokraimoro
[Kokraimoro tube-snouted ghost knifefish]
No picture found

Max. Length 19.2 cm TL

 
Sternarchorhynchus mareikeae
[Mareike’s tube-snouted ghost knifefish]
No picture found

Max. Length 27.8 cm TL

 
Sternarchorhynchus marreroi
[Marrero’s tube-snouted ghost knifefish]
No picture found

Max. Length 19.2 cm TL

 
Sternarchorhynchus mendesi
[Mendes’ tube-snouted ghost knifefish]
No picture found

Max. Length 24.9 cm TL

 
Sternarchorhynchus mesensis
[Mesensis tube-snouted ghost knifefish]
No picture found

Max. Length 25.8 cm TL

 
Sternarchorhynchus montanus
[Montanus tube-snouted ghost knifefish]
No picture found

Max. Length 54 cm TL

 
Sternarchorhynchus mormyrus
[Mormyrus tube-snouted ghost knifefish]

Photo by Yuri Hooker/WWF-OPP

South America
Max. Length 47 cm TL
Sternarchorhynchus oxyrhynchus (Müller & Troschel, 1849)

Photo by Photo by Yuri Hooker/WWF-OPP
 
Sternarchorhynchus oxyrhynchus
[Oxyrhynchus tube-snouted ghost knifefish]
No picture found

Max. Length 38.2 cm TL

 
Sternarchorhynchus retzeri
[Retzer’s tube-snouted ghost knifefish]
No picture found

Max. Length 41.7 cm TL

 
Sternarchorhynchus roseni
[Rosen’s tube-snouted ghost knifefish]
No picture found

Max. Length 11.6 cm TL

 
Sternarchorhynchus schwassmanni
[]
No picture found

Max. Length 16.9 cm TL

 
Sternarchorhynchus severii
[Severi’s tube-snouted ghost knifefish]
No picture found

Max. Length 37.4 cm TL

 
Sternarchorhynchus starksi
[Stark’s tube-snouted ghost knifefish]
No picture found

Max. Length 22.9 cm TL

 
Sternarchorhynchus stewarti
[Stewart’s tube-snouted ghost knifefish]
No picture found

Max. Length 31 cm TL

 
Sternarchorhynchus taphorni
[Taphorn’s tube-snouted ghost knifefish]
No picture found

Max. Length 13.6 cm TL

 
Sternarchorhynchus villasboasi
[Villasboas’ tube-snouted ghost knifefish]
No picture found

Max. Length 28 cm TL

 
Sternarchorhynchus yepezi
[Yepez’ tube-snouted ghost knifefish]
No picture found

Max. Length 19.6 cm TL

 
Tembeassu marauna
[]


Sort by: Species Length Year
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n = 95

Scientific Name English Name Distribution Max. Length (cm) Year
Adontosternarchus balaenops South America 25 TL 1878
Adontosternarchus clarkae South America 18.6 TL 1985
Adontosternarchus devenanzii South America 18.6 TL 1985
Adontosternarchus duartei South America 18.5 TL 2012
Adontosternarchus nebulosus South America 21.8 TL 2007
Adontosternarchus sachsi South America 32.2 TL 1877
Apteronotus acidops South America 32.1 TL 2011
Apteronotus albifrons Black ghost South America 50 TL 1766
Apteronotus anu South America 27.1 TL 2013
Apteronotus apurensis South America 30.8 TL 1968
Apteronotus baniwa South America 15.5 TL 2013
Apteronotus bonapartii South America 38 SL 1855
Apteronotus brasiliensis South America 29 TL 1852
Apteronotus camposdapazi South America 2006
Apteronotus caudimaculosus South America 28.7 TL 2003
Apteronotus cuchillejo South America 18.9 TL 1949
Apteronotus cuchillo South America 39 TL 1949
Apteronotus curvioperculata South America 25.3 TL 1968
Apteronotus ellisi South America 32.8 TL 1957
Apteronotus eschmeyeri South America 32 SL 2004
Apteronotus ferrarisi South America 27.4 TL 2013
Apteronotus galvisi South America 19.0 TL 2007
Apteronotus jurubidae South America 25.3 TL 1944
Apteronotus leptorhynchus South America 26.9 TL 1912
Apteronotus lindalvae South America 33.3 TL 2012
Apteronotus macrolepis South America 18 TL 1881
Apteronotus macrostomus South America 26 TL 1943
Apteronotus magdalenensis South America 129 TL 1945
Apteronotus magoi South America 2006
Apteronotus mariae South America 27.3 SL 1914
Apteronotus milesi South America 22.1 TL 2005
Apteronotus pemon South America 20.6 TL 2013
Apteronotus rostratus South America 27.2 TL 1913
Apteronotus spurrellii South America 27 TL 1914
Compsaraia compsa South America 33.9 TL 1994
Compsaraia iara South America 23.5 TL 2017
Compsaraia samueli Pelican Knifefish South America 22.6 SL 2009
Megadontognathus cuyuniensis South America 23.8 TL 1994
Megadontognathus kaitukaensis South America 16 TL 1999
Orthosternarchus tamandua South America 44 TL 1898
Parapteronotus hasemani South America 38.1 TL 1913
Pariosternarchus amazonensis South America 15.2 SL 2006
Platyurosternarchus crypticus South America 30.8 TL 2009
Platyurosternarchus macrostoma South America 40 TL 1870
Porotergus duende Known from the main chann 18.4 TL 2010
Porotergus gimbeli South America 24 TL 1912
Porotergus gymnotus South America 85 TL 1912
Sternarchella calhamazon South America 18.5 TL 2013
Sternarchella duccis South America 22.6 TL 1996
Sternarchella orinoco South America 22 TL 1994
Sternarchella orthos South America 30 TL 1994
Sternarchella patriciae South America 20.8 TL 2017
Sternarchella raptor South America 19.9 TL 1996
Sternarchella rex South America. 40.4 TL 2017
Sternarchella schotti South America 40 TL 1868
Sternarchella sima South America 40 TL 1913
Sternarchogiton labiatus South America 21.4 TL 2007
Sternarchogiton nattereri South America 25 TL 1868
Sternarchogiton porcinum South America 30 TL 1942
Sternarchogiton preto South America 21.7 SL 2007
Sternarchogiton zuanoni The single known sample o 17.8 TL 2010
Sternarchorhamphus muelleri South America 45.5 TL 1881
Sternarchorhynchus axelrodi Axelrod’s tube-snouted ghost knifefish South America 60 TL 2010
Sternarchorhynchus britskii Britski’s tube-snouted ghost knifefish South America 26.1 TL 2000
Sternarchorhynchus caboclo Cabocolo tube-snouted ghost knifefish South America 22.6 TL 2006
Sternarchorhynchus chaoi Chao’s tube-snouted ghost knifefish South America 16.4 TL 2010
Sternarchorhynchus cramptoni Crampton’s tube-snouted ghost knifefish South America 33.1 TL 2010
Sternarchorhynchus curumim Curumim tube-snouted ghost knifefish South America 18.1 TL 2006
Sternarchorhynchus curvirostris South America 40.6 TL 1887
Sternarchorhynchus freemani Freeman’s tube-snouted ghost knifefish South America 20.1 TL 2010
Sternarchorhynchus galibi Galibi tube-snouted ghost knifefish South America 20 TL 2010
Sternarchorhynchus gnomus Gnomus tube-snouted ghost knifefish South America 15.2 TL 2006
Sternarchorhynchus goeldii Goeldi’s tube-snouted ghost knifefish South America 30.6 TL 2010
Sternarchorhynchus hagedornae Hagedorn’s tube-snouted ghost knifefish South America 24.9 TL 2010
Sternarchorhynchus higuchii Higuchi’s tube-snouted ghost knifefish South America 24.6 TL 2010
Sternarchorhynchus inpai Inpa tube-snouted ghost knifefish South America 22.2 TL 2010
Sternarchorhynchus jaimei Jamei’s tube-snouted ghost knifefish South America 20 TL 2010
Sternarchorhynchus kokraimoro Kokraimoro tube-snouted ghost knifefish South America 19.7 TL 2010
Sternarchorhynchus mareikeae Mareike’s tube-snouted ghost knifefish South America 19.2 TL 2010
Sternarchorhynchus marreroi Marrero’s tube-snouted ghost knifefish South America 27.8 TL 2010
Sternarchorhynchus mendesi Mendes’ tube-snouted ghost knifefish South America 19.2 TL 2010
Sternarchorhynchus mesensis Mesensis tube-snouted ghost knifefish South America 24.9 TL 2000
Sternarchorhynchus montanus Montanus tube-snouted ghost knifefish South America 25.8 TL 2010
Sternarchorhynchus mormyrus Mormyrus tube-snouted ghost knifefish South America 54 TL 1868
Sternarchorhynchus oxyrhynchus Oxyrhynchus tube-snouted ghost knifefish South America 47 TL 1849
Sternarchorhynchus retzeri Retzer’s tube-snouted ghost knifefish South America 38.2 TL 2010
Sternarchorhynchus roseni Rosen’s tube-snouted ghost knifefish South America 41.7 TL 1994
Sternarchorhynchus schwassmanni South America 11.6 TL 2010
Sternarchorhynchus severii Severi’s tube-snouted ghost knifefish South America 16.9 TL 2006
Sternarchorhynchus starksi Stark’s tube-snouted ghost knifefish South America 37.4 TL 2010
Sternarchorhynchus stewarti Stewart’s tube-snouted ghost knifefish South America 22.9 TL 2010
Sternarchorhynchus taphorni Taphorn’s tube-snouted ghost knifefish South America 31 TL 2010
Sternarchorhynchus villasboasi Villasboas’ tube-snouted ghost knifefish South America 13.6 TL 2010
Sternarchorhynchus yepezi Yepez’ tube-snouted ghost knifefish South America 28 TL 2010
Tembeassu marauna South America 19.6 TL 1998



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