Algae tetra
Algae tetra | ||||||||||||
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Apareiodon affinis |
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Systematics | ||||||||||||
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Scientific name | ||||||||||||
Parodontidae | ||||||||||||
Eigenmann , 1910 |
The parodontidae or Raspelzahnsalmler (Parodontidae; to Greek par "equal", "corresponding to", and odon "tooth") are a family of South American tetras (Perciformes). Their distribution area extends from eastern Panama over large parts of South America to the Río de la Plata . They are absent in some coastal river systems, in Patagonia and in the main stream of the Amazon .
features
Algae tetra grow 4 to 15 centimeters long. Their bodies are elongated and spindle-shaped or pencil-shaped. The mouth is terminal, the upper lip is poorly developed or absent. On the premaxillary (front part of the upper jaw) the fish have four (rarely two) spade-shaped teeth with straight cut edges. The premaxillary is enlarged and very mobile. Some species also have teeth on the maxillary and mandible. Overall, the lower mouth and the teeth of the family, which mostly lives in mountain rivers, are equipped with wide, multi-pointed rasp teeth and are strongly adapted to the scraping of the algae growth on rocks and stones. They have 35 to 41 vertebrae and 34 to 43 scales along the lateral line organ .
The family used to be counted as a subfamily of the club tetras (Hemiodontidae) or Hemiodidae.
Genera and species
There are 3 genera and 29 species:
- Genus Apareiodon Eigenmann, 1916
- Apareiodon affinis (Steindachner, 1879)
- Apareiodon argenteus Pavanelli & Britski, 2003
- Apareiodon cavalcante Pavanelli & Britski, 2003
- Apareiodon davisi Fowler, 1941
- Apareiodon gransabana Starnes & Schindler, 1993
- Apareiodon hasemani Eigenmann, 1916
- Apareiodon ibitiensis Amaral Campos, 1944
- Apareiodon itapicuruensis Eigenmann & Henn, 1916
- Apareiodon machrisi Travassos, 1957
- Apareiodon orinocensis Bonilla, Machado-Allison, Silvera, Chernoff, López & Lasso, 1999
- Apareiodon piracicabae (Eigenmann, 1907)
- Apareiodon tigrinus Pavanelli & Britski, 2003
- Apareiodon vittatus Garavello, 1977
- Apareiodon vladii Pavanelli, 2006
- Genus Parodon Valenciennes in Cuvier & Valenciennes, 1849
- Parodon apolinari Myers, 1930
- Parodon bifasciatus Eigenmann, 1912
- Parodon buckleyi Boulenger, 1887
- Parodon caliensis Boulenger, 1895
- Parodon carrikeri Fowler, 1940
- Parodon guyanensis Géry, 1959
- Parodon hilarii Reinhardt, 1867
- Parodon moreirai Ingenito & Buckup, 2005
- Parodon nasus Kner, 1859
- Parodon pongoensis (Allen, 1942)
- Parodon suborbitalis Valenciennes, 1850
- Parodon tortuosus Eigenmann & Norris, 1900
- Genus Saccodon Kner, 1863
- Saccodon dariensis (Meek & Hildebrand, 1913)
- Saccodon terminalis (Eigenmann & Henn, 1914)
- Saccodon wagneri Kner, 1863
literature
- Joseph S. Nelson : Fishes of the World . John Wiley & Sons, 2006, ISBN 0-471-25031-7 .
- Axel Zarske: Apeirodon , Parodon Valenciennes, 1849 , Parodon suborbitale and Parodontidae. In: Claus Schaefer, Torsten Schröer (Hrsg.): The large lexicon of aquaristics. Eugen Ulmer, Stuttgart 2004, ISBN 3-8001-7497-9 , p. 58 f. and 752.
Web links
- Algae tetra on Fishbase.org (English)
Individual evidence
- ↑ Jorge Porto u. a .: Cytogenetic Studies in Hemiodidae (Ostariophysi, Characiformes) Fishes from the Central Amazon. In: Cytologia. Volume 58, No. 4, (January) 1993, pp. 397-402.