Čeleď: Hemiodontidae Bleeker, 1859 — polozubkovití
Rod: Hemiodus Müller, 1842
Jižní Amerika — řeka Rio Jari, povodí Amazonky (Pará a Amapá, Brazílie).
Cachoeira de São Raimundo, Rio Iratapura, left bank tributary of Rio Jari, adjacent to Iratapura community, above Cachoeira de Santo Antônio, 0°33'59"S, 52°34'40"W, município de Laranjal.
13,4 cm SL.
Langeani, F. & Moreira, C. R. 2013. Hemiodus iratapuru, a new species of Hemiodontidae from the Rio Jari, Amazon Basin, Brazil (Teleostei, Characiformes). Journal of Fish Biology v. 82: 1259-1268.
Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds). 2024. Eschmeyer's catalog of fishes: Genera, species, references. World Wide Web.
Froese, R. & Pauly, D. Editors. 2024. FishBase. World Wide Web.