Microrasbora
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| Annandale , 1918 |
Microrasbora ( size : "micron" = small + Rasbora ) is a genus of very small South Asian danioninae . Of the two species in the genus, the type species Microrasbora rubescens occurs endemically in Burmese Inle Lake , the second species, Microrasbora microphthalma, lives in the Nanwan River in the southern Chinese province of Yunnan .
features
Microrasbora species are only 2.6 to 3 cm long. Your body is elongated and flattened on the sides. Microrasbora differ from the similar genera Brachydanio and Rasbora by the lack of a lateral line and a symphysis button at the tip of the lower jaw, and from Brachydanio by the lack of barbels . The scales of the Microrasbora species are large and transparent.
- Fin formula : dorsal 2–3 / 6–8, anal 3 / 9–12.
Way of life
Microrasbora species live in large swarms in dense vegetation on the shores of Inle Lake ( M. rubescens ) or in small mountain streams over sandy and stony soils ( M. microphthalma ).
species
- Microrasbora microphthalma Jiang, Chen & Yang, 2008
- Microrasbora rubescens Annandale, 1918
External system
Microrasbora belongs to the Danionini tribe (Untertribus Danionina) within the Bärblings and is the sister genus of Devario .
literature
- Günther Sterba (Ed.), Gert Brückner: Encyclopedia of Aquaristics and Special Ichthyology. Neumann-Neudamm, Melsungen u. a. 1978, ISBN 3-7888-0252-9 .
- Günther Sterba: The world's freshwater fish. 2nd Edition. Urania, Leipzig / Jena / Berlin 1990, ISBN 3-332-00109-4 .
- Axel Zarske: Microrasbora. In: Claus Schaefer, Torsten Schröer (Hrsg.): The large lexicon of aquaristics. Eugen Ulmer, Stuttgart 2004, ISBN 3-8001-7497-9 , p. 650.
Individual evidence
- ↑ Kevin L. Tang et al .: Systematics of the subfamily Danioninae (Teleostei: Cypriniformes: Cyprinidae). Molecular Phylogenetics and Evolution, Volume 57, Issue 1, October 2010, Pages 189-214 doi : 10.1016 / j.ympev.2010.05.021
Web links
- Microrasbora on Fishbase.org (English)