Roeboides

Roeboides
Roeboides sp.
Systematics
Sub-cohort : Ostariophysi Otophysa Order : Tetras (Characiformes) Family : True tetras (Characidae) Subfamily : Characinae Genre : Roeboides
Scientific name
Roeboides
Günther , 1864

Roeboides is a genus of small tetra that is widespread in Central and South America.

features

The Roeboides species are quite similar to the closely related genus Charax . Her body is high back, elongated, strongly flattened on the sides and almost transparent. With lengths of 4.8 to 18.5 centimeters, they are only larger than the Charax species and their collarbone (clavicle) has a spine. The dorsal fin stands approximately above the middle of the body and is pointed in the males. The anal fin is very long, an adipose finis available. The caudal fin is forked, the lower lobe is often longer. The head is relatively short, the eyes large. In addition to the jaw teeth, which are arranged in two rows in the upper jaw, the genus has wart-like, small outer teeth that remain visible from the outside when the mouth is closed. They are used to grate the scales of other fish.

Roeboides species live mainly in dense vegetation and prefer to stay in the lower water layers. Like the Charax species, they swim upside down in an inclined posture.

species

Roeboides affinis ( Günther , 1868) . Roeboides biserialis ( Garman , 1890) . Roeboides bonariensis ( Steindachner , 1879) . Roeboides bouchellei Fowler, 1923 . Roeboides bussingi Matamoros et al., 2013 . Roeboides carti Lucena, 2000 . Dayis-Raubglassalmler , Roeboides dayi (Steindachner, 1878) . Descalvado-Raubglasalmler Roeboides descalvadensis Fowler, 1932 . Roeboides servesonito Schultz, 1944 . Roeboides dispar Lucena, 2001 . Guatemala glass tetra , Roeboides guatemalensis (Günther, 1864) . Roeboides ilseae Bussing, 1986 .

Roeboides loftini de Lucena, 2012 . Small-scale glass tetra , Roeboides microlepis (Reinhardt, 1851) . Roeboides myersii Gill , 1870 . Roeboides numerosus Lucena, 2000 . Roeboides occidentalis Meek & Hildebrand, 1916 . Roeboides oligistos Lucena, 2000 . Paraguay tetras , Roeboides paranensis Pignalberi, 1975 . Roeboides prognathus ( Boulenger , 1895) . Roeboides sazimai Lucena, 2007 . Thurns Raubglassalmler , Roeboides thurni Eigenmann , 1912 . Roeboides xenodon (Reinhardt, 1851) .

literature

• Günther Sterba : The world's freshwater fish. 2nd Edition. Urania, Leipzig / Jena / Berlin 1990, ISBN 3-332-00109-4 .
• Günther Sterba (Ed.), Gert Brückner: Encyclopedia of Aquaristics and Special Ichthyology. Neumann-Neudamm, Melsungen u. a. 1978, ISBN 3-7888-0252-9 .
• Axel Zarske: Roeboides. In: Claus Schaefer, Torsten Schröer (Hrsg.): The large lexicon of aquaristics. Eugen Ulmer, Stuttgart 2004, ISBN 3-8001-7497-9 , p. 863 f.

Web links

Commons : Roeboides  - collection of images, videos and audio files

• Roeboides on Fishbase.org (English)