Imparfinis hollandi
Haseman, 1911
Synonyms
guasco
Pygidium davisi
Pygidium davisi
Length (total)
approx. 45 cm
Standard length (documented)
230.0 mm
Recommended tank size
250 cm
Temperature
18 - 25 °C
Eats plants
not known
unknown
long
10 soft rays
much longer at the top than at the bottom
8 soft rays
slightly convex
8 soft rays
6 soft rays
10 soft rays
much longer at the top than at the bottom
8 soft rays
slightly convex
8 soft rays
6 soft rays
Not on the positive list of Brazil in 2012 : The positive list of Brazil
Not on the negative list of Brazil from 2020 : The negative list of Brazil
Not on the negative list of Brazil from 2020 : The negative list of Brazil
- Mees, G.F. & Cala, P., 1989 "Two new species of Imparfinis from northern South America (Pisces, Nematognathi, Pimelodidae)" (Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen (Series C, Biological and Medical Sciences)) P. 382
- Reis, R.E., Kullander, S.O. & Ferraris, C.J. et.al., 2003 "Check List of the Freshwater Fishes of South and Central America" P. 415
- Haseman, John D., 1911 "Some new Species of Fishes from the Rio Iguassú" (Annals of the Carnegie Museum, Vol. 7, P. 383)
- Menni, R.C., 2004 "Peces y ambientes en la Argentina continental" (Monografías del Museo Argentina Ciencias Naturales, Buenos Aires, No. 5, P. 83)
- Ferraris, C.J. jr., 2007 "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types (I)" (Zootaxa, Vol. 1418, P. 185)
- 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" (Revue Suisse de Zoologie, Vol. 112 Fas. 4, P. 823)
- Margarido, V.P. & Moreira-Filho, O., 2008 "Karyotypic differentiation through chromosome fusion and number reduction in Imparfinis hollandi (Ostariophysi, Heptapteridae)" (Genetics and Molecular Biology, Vol. 31 No. 1, P. 235)
- 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" (Neotropical Ichthyology, Vol. 9 No. 4, P. 778)
- --- find more ---
Many thanks to
for the pictures
Hasemann, John D. (PD)
1, 2
3, 4, 5
Please help with your pictures and information to complete the database: database(at)welsfans.de
Link: https://www.suedamerikafans.de/en/wels-datenbank/welsart/?art=2117
2117