Six-belted barb
| Six-belted barb | ||||||||||||
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Six-belted barb ( Desmopuntius hexazona ) |
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| Desmopuntius hexazona | ||||||||||||
| ( Weber & de Beaufort , 1912) |
The six-belted barbel ( Desmopuntius hexazona ( Gr .: "Hexa" = six; "zona" = belt), syn .: Barbus hexazona , Puntius hexazona , Systomus hexazona ), also called six- banded barbel , is a freshwater fish from the carp family (Cyprinidae) . Their distribution area extends from the Malay Peninsula via Singapore to Sumatra and Borneo . The species is also said to occur in the Mekong river basin.
features
Female six-belted barbs are a maximum of 5.5 centimeters long, males remain smaller. Your body is elongated and significantly flattened on the sides. The barbel have two pairs of barbels . Their basic color is brownish-red, the sides of the body and head are patterned by five to six blue-black cross bands. Within the ligaments, the scales have greenish edges. The fins are reddish, with strong red bases, then outwardly becoming increasingly weaker in color and colorless edges. The sexes do not differ in color.
- Fin formula : dorsal : iii / 8; Anal : iii / 5; Pectorals : 1/14.
- Scale formula : SL 22-25.
Way of life
The six-belted mullet occurs in undisturbed, shady rainforest rivers and streams with an acidic pH .
Systematics
The six-belted barbel was originally classified as Barbus tetrazona (var.) Johorensis as a subspecies or color variant of the five- belted barbel ( Desmopuntius pentazona , syn .: Puntius pentazona , Barbus pentazona ), later recognized by Maurice Kottelat as an independent species.
Aquaristics
The species was marketed in the aquarium hobby for a long time as Puntius or Barbus pentazona , the old scientific name of the five- belted barbel , so that the fish kept as five-belted barbel for decades are actually the six-belted barbel.
literature
- Maurice Kottelat : The Identity of Barbus johorensis Duncker, 1904 (Teleostei: Cyprinidae). Raffles Bulletin of Zoology, 1992, 40/2 PDF
- Günther Sterba : Freshwater fish of the world , Weltbild Verlag, Augsburg 1998, ISBN 3-89350-991-7 .
- Axel Zarske: Barbus hexazona (Weber & de Beaufort, 1912). Five-belted barb. In: Claus Schaefer, Torsten Schröer (Hrsg.): The large lexicon of aquaristics. Eugen Ulmer, Stuttgart 2004, ISBN 3-8001-7497-9 , pp. 130 f.
- Axel Zarske, Dieter Bork: Barbus pentazona or Barbus hexazona - confusion or clarity? Aquaristic trade magazine, No. 198 (December / January 2006/07) PDF
Individual evidence
- ^ Maurice Kottelat 1992: The identity of Barbus johorensis Duncker, 1904 (Teleostei: Cyprinidae). The Raffles Bulletin of Zoology v. 40 (no. 2): 187-192.
Web links
- Six-belt barbel on Fishbase.org (English)