Imparfinis

Eigenmann & Norris, 1900
Type species: Imparfinis piperatus
Imparfinis piperatus
Classification
 
Family
Heptapteridae
Synonyms
Length (total)
4 - 45 cm
Fins
Adipose
Anale
Caudale
Dorsale
Pectorale
Ventrale
 
Imparfinis - overview of fins
 
Imparfinis - Overview of the natural diet
Distribution
Argentina (2), Bolivia (3), Brazil (11), Colombia (5), Costa Rica (1), Ecuador (2), Peru (4), Suriname (1), Uruguay (1), Venezuela (3)
 
 
Imparfinis - overview of habitats
Similar Genus
Internet sources

Species

Species
Country
Origin
Length
(cm)
AQ
(cm)
T.
(°C)
Bree
ding
Imparfinis cochabambae
Fowler, 1940
 
Bolivia, Brazil
Río Beni-Einzug, río Mamoré, rio Madeira
(Cochabamba, Santa Cruz, Beni, Rondônia)
IUCN: near threatened
Fowler, Henry, 1940 "Zoological Results of the Second Bolivian Expedition for the Academy of Natural Sciences of Philadelphia, 1936-1937. Part I: The Fishes"
López, H.L.; Miquelarena,A.M. & Menni, R.C., 2003 "Lista comentada de los peces continentales de la Argentina"
Menni, R.C., 2004 "Peces y ambientes en la Argentina continental"
8
60
 
unknown
Imparfinis guttatus
Pearson, 1924
 
Bolivia, Peru
río Popoi, Río Mamoré-, Río Pilcomayo-Einzug
Imparfinis guttatus = Nannorhamdia guttatus, Holotype
15
100
 
unknown
Imparfinis hasemani
Steindachner, 1915
 
Brazil
Rio Surumú, rio Branco- bei Bem Querer, rio Tapajós-Einzug bei Santarem
(Roraima, Pará (BRA))
Imparfinis hasemani
10
60
 
unknown
Imparfinis hollandi
Haseman, 1911
 
Argentina, Brazil
Río Iguazú = Rio Iguaçu
(Paraná, Santa Catarina, Misiones (ARG))
Imparfinis hollandi
45
250
18 - 25
unknown
Imparfinis lepturus
Silva, 2023
 
Brazil
rio Paraná-Einzug
(Goiás)
Silva, G.S.C., 2023 "Integrative taxonomy of Imparfinis (Siluriformes, Heptapteridae) from the Upper Paraná River basin, Brazil, with description of a new species" (abstract)
Dagosta,F.C; Monção,M.S; Nagamatsu,B.A; Pavanelli,C.S; Carvalho,F.R; Lima,F,C.T; Langeani,F; Dutra,G.M; Ota, R.R; Seren,T.J; Tagliacollo,V; Menezes, N.A; Britski,H.A & Pinna M, 2024 "Fishes of the upper rio Paraná basin: diversity, biogeography and conservation"
 
 
 
unknown
Imparfinis lineatus
Bussing, 1970
 
Costa Rica
Puntarenas Province
(Puntarenas)
MBUCV-V-32675, 69.4 mm SL, Costa Rica, Puntarenas, río Peje, 13 km S of San Isidro General
9
60
26 - 28
unknown
Imparfinis longicauda
Borodin, 1927
 
Brazil
rio Paraná, rio São Francisco, rio Tocantins, rio Grande, rio Preto do Criciúma, Rio de Ondas
(Mato Grosso do Sul, São Paulo, Paraná, Tocantins, Minas Gerais, Bahia)
IUCN: least concern
Imparfinis longicauda
20
120
 
unknown
Imparfinis longicaudus
Boulenger, 1887
 
Ecuador
Río Bobonaza-Einzug
(Pastaza)
Imparfinis longicaudus - Lateralansicht
18
120
 
unknown
Imparfinis microps
Eigenmann & Fisher, 1916
 
Colombia
Río Negro, río Cusiana
(Meta, Cundinamarca)
Imparfinis microps, holotype, lateral
8
60
 
unknown
Imparfinis minutus
Lütken, 1874
 
Brazil
Rio das Velhas
(Minas Gerais)
Imparfinis minutus, MNRJ 43770, 83.4 mm SL
9
60
 
unknown
Imparfinis mirini
Haseman, 1911
 
Brazil
Rio Piracicaba, oberer Rio Araguaia und oberer Rio Paraná-Einzug
(São Paulo, Goiás)
Imparfinis mirini
9
60
 
unknown
Imparfinis mishky
Almirón, Casciotta, Bechara, Ruíz Díaz, Bruno, D´Ambrosio, Solimano & Soneira, 2007
 
Argentina, Uruguay
rio Negro, Río Paraná, río Uruguay, río Corriente, río Timboy, Esteros del Iberá, arroyo Yabebirí
(Corrientes, Misiones)
Almirón, A.; Casciotta, J.R.; Bechara, J.A.; Ruiz Diaz, F.; Bruno, C.; D'ambrosio, S.; Solimano, P. & Soneira, P., 2007 "Imparfinis mishky (Siluriformes, Heptapteridae) a new species from the ríos Paraná and Uruguay basins in Argentina"
Ortega-Lara, A.; Milani, N.; DoNascimiento, C.; Villa-Navarro, F. & Maldonado-Ocampo, J.A., 2011 "Two new trans-Andean species of Imparfinis Eigenmann & Norris, 1900 (Siluriformes: Heptapteridae) from Colombia"
Bogan, S.; Meluso, J.M.; Bauni, V. & Cardoso, Y.P., 2015 "Cuatro Nuevos Registros De Peces Para La Provincia De Misiones, Argentina"
8
60
 
unknown
Imparfinis munduruku
Silva Castro & Wosiacki, 2019
 
Brazil
Igarapé Bacabal, rio São Benedito
(Pará (BRA))
Sllva Castro, I. da & Wosiacki, W.B., 2019 "A new species of Imparfinis Eigenmann & Norris, 1900 (Siluriformes: Heptapteridae) from the Tapajós basin, Brazil"
5
60
 
unknown
Imparfinis nemacheir
Eigenmann & Fisher, 1916
 
Colombia, Peru, Venezuela
Oberer Amazonas-, río Orinoco-, río Cauca-, río Magdalena-, río Patia-Einzug
Imparfinis nemacheir, FMNH 58127, 105.0 mm SL, holotype
11
80
 
unknown
Imparfinis pijpersi
Hoedeman, 1961
 
Suriname
Sipaliwini River, Corantijn River-Einzug
(Sipaliwini, East Berbice-Corentyne, Nickerie)
Ferraris, C.J. jr., 2007 "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types (I)"
12
80
 
unknown
Imparfinis piperatus
Eigenmann & Norris, 1900
 
Brazil
Oberer rio Paraná, Küstengewässer
(São Paulo)
Imparfinis piperatus
4
60
 
unknown
Imparfinis pristos
Mees & Cala, 1989
 
Brazil, Colombia, Venezuela
Rio Negro-, río Orinoco-Einzug
(Vichada, Amazonas (BRA), Amazonas (VEN))
Imparfinis pristos
6
60
 
unknown
Imparfinis pseudonemacheir
Mees & Cala, 1989
 
Colombia, Peru, Venezuela
río Tucuragua, río Orinoco-Einzug, río Ucayali-Einzug
(Bolívar)
Imparfinis pseudonemacheir, MBUCV-V-28656, 48.1 mm SL, Venezuela, Anzoategui, río Atapirire, río Orinoco basin
8
60
 
unknown
Imparfinis robustus
Cortés-Hernández, López-Castaño, Milani & DoNascimiento, 2023
 
Colombia, Venezuela
río Guayuriba, río Culebrero, río Upia, río Chuy, río Cusiana, río Charte, río Unete, río Tua, río Carvo Norte, río Orotoy, río Ocoa, río La Yuca
(Meta, Arauca, Barinas, Portuguesa)
IUCN: least concern
Cortés-Hernández, M.Á.; López-Castaño, J.A.; Milani, N. & DoNascimiento, C., 2023 "A new cryptic species of Imparfinis (Siluriformes: Heptapteridae) from the Orinoco River basin, revealed by an iterative approach" (abstract)
17
120
 
unknown
Imparfinis spurrellii
Regan, 1913
 
Colombia
Río Condoto
(Chocó)
IUCN: endangered
Imparfinis spurrellii
7
60
 
unknown
Imparfinis stictonotus
Fowler, 1940
 
Bolivia, Brazil, Ecuador, Peru
Río Mamoré-, Rio Madeira-, Río Ucayali-Einzug
(Loreto, Beni, Amazonas (BRA))
Imparfinis stictonotus, 34 mm (MUSM 35568), Bajo Urubamba
6
60
 
unknown
Imparfinis timana
Ortega-Lara, Milani, DoNascimiento, Nilla-Navarro & Maldonado-Ocampo, 2011
 
Colombia
Quebrada La Quebradona, río Guarapas
(Huila)
Imparfinis timana
9
60
 
unknown
Imparfinis usmai
Ortega-Lara, Milani, DoNascimiento, Nilla-Navarro & Maldonado-Ocampo, 2011
 
Colombia
quebrada Potrerilla, río Cauca, río Japio, río Palo, río La Vieja, río Quindío, río Risaralda, río Coello, río Anchique, quebrada Tuluni
(Tolima, Cauca, Valle del Cauca, Risaralda, Quindio, Caldas, Nariño)
Imparfinis usmai, IMCN 3842, 73.6 mm SL, Colombia, Cauca, Caloto, río Japio
12
80
 
unknown
23  entries found.
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Many thanks to
for the pictures
California Academy of Sciences (CCO (PD))
1, 12
California Academy of Sciences (CCO (PD))
2
Steindachner, Franz (1917) (PD)
3
Hasemann, John D. (PD)
4
A. Ortega-Lara, N. Milani, C. DoNascimiento, F. Nilla-Navarro & J.A. Maldonado-Ocampo (CC BY-NC 4.0)
5, 14, 17, 18
R.R. Ota, G. de Carvalho Deprá, W.J. da Graça & C.S. Pavanelli (CC BY-NC 4.0)
6
G. A. Boulenger (PD)
7
The Field Museum (CC BY-NC 4.0)
8
V. de Brito & P.A. Buckup (CC BY 4.0)
9
A. Claro-Garcia, F. Assega & O.A.Shibatta (CC BY 4.0)
10
M. Littmann, FMNH, Division fo Fishes (CC BY-NC 4.0)
11
J.A.S. Zuanon, F.A. Bockmann & I. Sazima (CC BY-NC 4.0)
13
The Trustees of the Natural History Museum, London (CC BY 4.0)
15
Carvalho et. al., 2010 (PD)
16
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