Hemiodus
Hemiodus is a genus of halftooths from South America with the greatest species richness in the Amazon Basin, but also found in the Orinoco, Essequibo, Paraná–Paraguay and Parnaíba River basins. Depending on the species involved, these elongate fish reach a length of.
Fossil remains are known from the Middle Miocene-aged Pebas Formation of Peru.
Species
Hemiodus has the following species classified within it:- Hemiodus amazonum
- Hemiodus argenteus Pellegrin, 1909
- Hemiodus atranalis
- Hemiodus bimaculatus Nogueira, Langeani & Netto‐Ferreira, 2019
- Hemiodus goeldii Steindachner, 1908
- Hemiodus gracilis Günther, 1864
- Hemiodus huraulti
- Hemiodus immaculatus Kner, 1858
- Hemiodus iratapuru Langeani & Cristiano [Luis Rangel Moreira|C. L. R. Moreira], 2013
- Hemiodus jatuarana Langeani, 2004
- Hemiodus langeanii Hélio Daniel [Beltrão dos Anjos|Beltrão] & Jansen [Alfredo Sampaio Zuanon|Zuanon], 2012
- Hemiodus microlepis Kner, 1858
- Hemiodus ocellatus
- Hemiodus orthonops C. H. Eigenmann & C. H. Kennedy, 1903
- Hemiodus parnaguae C. H. Eigenmann & Henn, 1916
- Hemiodus quadrimaculatus Pellegrin, 1909
- Hemiodus semitaeniatus Kner, 1858
- Hemiodus sterni
- Hemiodus ternetzi G. S. Myers, 1927
- Hemiodus thayeria James [Erwin Böhlke|J. E. Böhlke], 1955
- Hemiodus tocantinensis Langeani, 1999
- Hemiodus tucupi Silva, Nogueira, Netto-Ferreira, Akama & Dutra, 2020
- Hemiodus unimaculatus
- ''Hemiodus vorderwinkleri''