Hypostomus derbyi
Haseman, 1911
dedicated Dr. O.A. Derby
Synonyms
cascudo-amarelo
Plecostomus derbyi
Plecostomus derbyi
Length (total)
approx. 32 cm
Standard length (documented)
268.2 mm
Recommended tank size
200 cm
Weight
0.580 kg
Temperature
18 - 25 °C
➀ rio Iguaçu = río Iguazú near União da Vitória, rio Areia, rio Atuba, rio Aurora, rio Cascavel, rio Cavernoso, rio Chopim, córrego Flor da Cunha, rio Guarani, rio Iraí, rio Jordão, rio dos Padres, córrego Passo do Aterrado, rio Pinhãozinho, rio Timbó, córrego da Devisa, ➀ rio Iguaçu = río Iguazú basin
Santa Catarina, Paraná
Brazil
rio Pinhão ➙ rio Jordão | rio Santo Antônio = río San Antonio Guazú ⇒ rio Iguaçu = río Iguazu ⇒ río Paraná
[ -26.235,-51.076 ]
Habitat river width
~4.00 m
(Prefered) River depth
> 0.15 m
Substrate
gravel, rocks
On the riverbank
forest
Nutrition (mostly): omnivore
Eats plants
not known
Keeping in (small) groups is recommended. Individual keeping is possible.
from genus: males have longer fins
from genus: Standard
unknown
present
5 soft rays
14 soft rays
slightly incised / concave, pointed
II / 7 rays
I / 6 rays
I / 5 rays
5 soft rays
14 soft rays
slightly incised / concave, pointed
II / 7 rays
I / 6 rays
I / 5 rays
Sympatric with
Astyanax bifasciatus
Astyanax gymnodontus
Astyanax lacustris
Bryconamericus ikaa
Gymnotus sylvius
Hoplias sp.
Poecilia reticulata
Synbranchus marmoratus
Trichomycterus sp.
Astyanax gymnodontus
Astyanax lacustris
Bryconamericus ikaa
Gymnotus sylvius
Hoplias sp.
Poecilia reticulata
Synbranchus marmoratus
Trichomycterus sp.
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
- Haseman, John D., 1911 "Some new Species of Fishes from the Rio Iguassú" (Annals of the Carnegie Museum, Vol. 7, P. 384)
- Garavello, J.C.; Britski, H.A. & Zawadzki, C.H., 2012 "The cascudos of the genus Hypostomus Lacépède (Ostariophysi: Loricariidae) from the rio Iguaçu basin" (Neotropical Ichthyology, Vol. 10 No. 2, P. 263)
- Cardoso, Y.P.; Brancolini, F.; Paracampo, A.; Lizarralde, M.; Covain, R. & Montoya-Burgos, J.I., 2016 "Hypostomus formosae, a new catfish species from the Paraguay River Basin with redescription of H. boulengeri (Siluriformes: Loricariidae)" (Ichthyological Exploration of Freshwaters, Vol. 27 No. 1, P. 22)
- Zawadzki, C.H.; Carvalho, P.H.; Birindelli, J.L.O. & Azevedo, F.M., 2016 "Hypostomus nigrolineatus, a new dark-striped species from the rio Jequitinhonha and rio Pardo basins, Brazil (Siluriformes, Loricariidae)" (Ichthyological Exploration of Freshwaters, Vol 27 No. 3, P. 272)
- Zawadzki, C.H.; da Silva, H.P. & Troy, W.P., 2018 "Redescription of Hypostomus latirostris (Regan, 1904) with the recognition of a new species of Hypostomus (Siluriformes: Loricariidae) from the upper rio Paraguay basin, Brazil" (Ichthyological Exploration of Freshwaters, No. 1079, P. 1)
- Cardoso, Y.P.; Queiroz, L.J. de; Bahechar, I.A.; Posadas, P.E. & Montoya-Burgos, 2021 "Multilocus phylogeny and historical biogeography of Hypostomus shed light on the processes of fish diversification in La Plata Basin" (scientific reports, Vol. 11)
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