Stevardiinae
| Stevardiinae | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Stevardiinae | ||||||||||||
| Eigenmann , 1909 |
The Stevardiinae are a subfamily of the true tetras (Characidae). The fish live from southern Mexico to Argentina .
The Stevardiinae replace the subfamily Glandulocaudinae in the system of the real tetras , since they, established in 1909 by Carl H. Eigenmann , have priority over this subfamily, also described by Eigenmann in 1914, and a further composition.
The best-known species of the subfamily is the Blue Perusalmler ( Knodus borki ) known from aquaristics .
features
Tetras of the subfamily Stevardiinae have two rows of teeth on the premaxillary . The second row usually has only four teeth (five in Nantis indefessus ). The number of branched fin rays in the dorsal fin is eight or less (but nine in Aulixidens eugeniae ( polymorphism of the species)), that of the fin bearers (pterygiophores) in the dorsal fin is nine.
As diagnostic features ( synapomorphies ) of the subfamily are u. a. a short frontal fontanelle that reaches no more than 2/3 the length of the parietal fontanelle and four teeth on the rear row of teeth of the premaxillary .
Genera
-
incertae sedis
- Boehlkea Géry, 1966
- Caiapobrycon Malabarba & Vari, 2000
- Hysteronotus Eigenmann, 1911
- Iotabrycon Roberts, 1973
- Monotocheirodon Eigenmann & Pearson in Pearson, 1924
- Othonocheirodus Myers, 1927
- Phallobrycon Menezes, Ferreira & Netto-Ferreira, 2009
- Phenacobrycon Eigenmann, 1922
- Pterobrycon Eigenmann, 1913
- Ptychocharax Weitzman, Fink, Machado-Allison & Royero L., 1994
- Rhinopetitia Géry, 1964
- Tyttocharax Fowler, 1913
- Tribus Creagrutini Miles, 1943
- Carlastyanax Géry, 1972
- Creagrutus Günther, 1864
- Lepidocharax Ferreira, Menezes & Quagio-Grassiotto 2011
- Microgenys Eigenmann, 1913
- Planaltina Böhlke, 1954
.jpg)
.jpg)
- Tribus Diapomini Eigenmann, 1909
- Attonitus Vari & Ortega, 2000
- Aulixidens Böhlke, 1952
- Bryconacidnus Myers in Eigenmann & Myers, 1929
- Bryconamericus Eigenmann in Eigenmann, McAtee & Ward, 1907
- Ceratobranchia Eigenmann in Eigenmann, Henn & Wilson, 1914
- Diapoma Cope, 1894
- Hypobrycon Malabarba & Malabarba, 1994
- Knodus Eigenmann, 1911
- Landonia Eigenmann & Henn, 1914
- Nantis Mirande, Aguilera & Azpelicueta, 2006
- Odontostoechus Gomes, 1947
- Piabarchus Myers, 1928
- Piabina Reinhardt, 1867
- Rhinobrycon Myers, 1944
- Tribus Eretmobryconini Thomaz, Arcila, Ortí & Malabarba, 2015
- Eretmobrycon Fink, 1976
- Markiana Eigenmann, 1903
- Tribus Glandulocaudini Eigenmann, 1914
- Glandulocauda Eigenmann, 1911
- Lophiobrycon Castro, Ribeiro, Benine & Melo, 2003
- Mimagoniates Regan, 1907
- Tribus Hemibryconini Géry, 1966
- Acrobrycon Eigenmann & Pearson, 1924
- Hemibrycon Günther, 1864
- Tribus Stevardiini
- Argopleura Eigenmann, 1913
- Chrysobrycon Weitzman & Menezes, 1998
- Pygmy kite fin ( Corynopoma riisei ) gill, 1858
- Gephyrocharax Eigenmann, 1912
- Pseudocorynopoma Perugia, 1891
- Stevardia Gill, 1858 (syn.Corynopoma Gill, 1858)
- Varicharax Vanegas ‐ Ríos et al., 2020
.jpg)
- Tribus Xenurobryconini Myers & Böhlke, 1956
- Cyanogaster Mattox, Britz, Toledo-Piza & Marinho, 2013
- Scopaeocharax Weitzman & Fink, 1985
- Tyttobrycon Géry, 1973
- Xenurobrycon Myers & Miranda Ribeiro, 1945
literature
- Juan Marcos Mirande (2018): Morphology, molecules and the phylogeny of Characidae (Teleostei, Characiformes). Cladistics, June 2018. doi: 10.1111 / cla.12345
- Andréa T. Thomaz, Dahiana Arcila, Guillermo Ortí & Luiz R. Malabarba: Molecular phylogeny of the subfamily Stevardiinae Gill, 1858 (Characiformes: Characidae): classification and the evolution of reproductive traits. BMC Evolutionary Biology 2015, 15: 146 doi: 10.1186 / s12862-015-0403-4
Web links
- Stevardiinae on Fishbase.org (English)