Auchenipterus osteomystax
Miranda-Ribeiro, 1918
osteon (gr.) - bone, mystax (gr.) - beard
Synonyms
Parauchenipterus striatulus
orumanha
Palmitinho
Buzo
Ceratocheilus osteomystax
hocicón
pirá bicicleta (Paraguay)
surumanha (BRA)
Torito
orumanha
Palmitinho
Buzo
Ceratocheilus osteomystax
hocicón
pirá bicicleta (Paraguay)
surumanha (BRA)
Torito
least concern
Length (total)
approx. 33 cm
Standard length (documented)
230.0 mm
Recommended tank size
200 cm
Weight
0.479 kg
rio Vermelho near Santa Rita das Antas = Jeroaquara, ➀ rio Tocantins, ➀ rio Araguaia, lagos do Araguaia, rio Curuá-Una, ➀ rio Tapajós, ➀ rio Trombetas, río de la Plata, ➀ río Uruguay = rio Uruguai, ➀ río Paraná = rio Paraná, ➀ río Paraguay = rio Paraguai, ➀ rio Paranapanema, río Aquidaban = río Aquido Canigi, rio Aquidauana, rio Cuiabá = rio Canabu, rio Ibicuí, rio Ijuí, río Jejuí Guazú, lagoa Paru, ➀ rio Taquari = ribeirão Taquari, lagoa Urariá, ➀ lago Ypacarai, río Ypané - widespread
Goiás, Pará, Mato Grosso, Santa Fé, Mato Grosso do Sul, Paraná, Rio Grande do Sul
Argentina, Brazil, Paraguay, Uruguay
rio Araguaia → rio Tocantins → rio Pará | rio Trombetas → Amazonas ⇒ Atlantic NE ↓ rio Miranda | rio São Lourenço | río Salado ⇒ río Paraguay → río Paraná | rio Uruguai = río Uruguay ⇒ río de la Plata → Atlantic SE ↓
˜[ -15.351,-50.451 ]
water fleas (Cladocera), insects, beetle (Coleoptera), insects (terrestrial), Webspinnen (Aranae), Milben (Acari), Copepods (Copepoda), ephemeroptera (Ephemeroptera), diptera (Diptera), Hymenoptera (Hymenoptera), Trichoptera (Trichoptera) (larvae)
Eats plants
not known
unknown
small
iii - iv / (39 -) 41 - 44 (- 47) rays
incised / concave, pointed
top and bottom approximately the same length
(6 -) 7 soft rays
(10 -) 12 - 13 (- 14) soft rays
(14 -) 12 - 13 soft rays
iii - iv / (39 -) 41 - 44 (- 47) rays
incised / concave, pointed
top and bottom approximately the same length
(6 -) 7 soft rays
(10 -) 12 - 13 (- 14) soft rays
(14 -) 12 - 13 soft rays
Sympatric with
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
- Reis, R.E., Kullander, S.O. & Ferraris, C.J. et.al., 2003 "Check List of the Freshwater Fishes of South and Central America" P. 474
- Miranda Ribeiro, Dr. A.de, 1918 "Tres generos e dezesete especies novas de peixes brasileiros determinados nas collecções do Museu Paulista" (Revista do Museu Paulista, Vol. 10)
- Ferraris, C.J., Jr. & Vari, R.P., 1999 "The South American catfish genus Auchenipterus Valenciennes, 1840 (Ostariophysi: Siluriformes: Auchenipteridae): monophyly and relationships, with a revisionary study" (Zoological Journal of the Linnean Society, Vol. 126 No. 4, P. 439)
- Garcia, D.A.Z.; Vidotto-Magnoni, A.P. & Orsi, M.L., 2018 "Diet and feeding ecology of non-native fishes in lentic and lotic freshwater habitats" (Aquatic Invasions, Vol. 13 No. 4, P. 565)
- Ota, R.R.; Carvalho Deprá, G. de; Graça, W.J. da & Pavanelli, C.S., 2018 "Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated" (Neotropical Ichthyology, Vol. 16 No. 2, P. 62)
- Gimênes Junior, H. & Rech, R. , 2022 "Guia ilustrado dos peixes do Pantanal e entorno"
- Sousa França, F.M.de & Gubiani, E.A., 2025 "Length-weight and length-length relationships for freshwater fish species from the lower Araguaia River, Tocantins-Araguaia basin, Tocantins State, Brazil" (Neotropical Ichthyology, Vol. 23 No. 1)
- Malabarba, L.R.;Hirschmann,A.; Lucena,C.A.S. de; Giora,J.; Wingert,J.M.; Ferrer,J.; Silva,P.C ; Angrizani,R.C.; Costa Ramos,R. da; Kullander,S.; Carvalho,T.P.; Bertaco,V.; Fialho,C.B. & Bonato,K.O., 2025 "Guia Peixes do Bioma Pampa"
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Many thanks to
for the pictures
1, 2
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1767
16.10.2025