Marble pointed tail gourami
| Marble pointed tail gourami | ||||||||||||
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Marble pointed tail gourami ( Malpulutta kretseri ) |
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Malpulutta | ||||||||||||
| Deraniyagala , 1937 | ||||||||||||
| Scientific name of the species | ||||||||||||
| Malpulutta kretseri | ||||||||||||
| Deraniyagala, 1937 |
The marble pointed tail gourami ( Malpulutta kretseri ) is a freshwater fish species from the suborder of the labyrinth fish . It occurs in shallow streams in southwestern Sri Lanka .
features
The marble pointed tail gourami is a maximum of 7 cm long, but usually stays 2 to 4 cm long. It has an elongated, moderately high back and laterally strongly flattened body and a head that tapers into a pointed muzzle. The dorsal fin is relatively short and stands over the middle of the body, the anal fin is very long. The pelvic fins are directly below the pectoral fins. The basic color is brownish, the edges of the fins are iridescent bluish.
- Fins formula : dorsal VIII – X / 4–6, anal XIII – XVII / 7–11, pectoral 12, ventral I / 5, caudal 13–15.
- Scale formula : mLR 29–30.
The dorsal, anal and caudal fins taper to a point. The soft radiating part of the dorsal and anal fin is larger than the hard radiating part.
Way of life
The marble pointed tail gourami lives in clear forest streams with a gentle current. He is mainly in the bank area between aquatic plants. The water in his residential waters is soft and slightly acidic. The mother-of-pearl harlequin ( Rasboroides vaterifloris ) is sometimes found in the same habitat. Like all members of the Osphronemidae family , the marble pointed tail gourami takes care of the brood and lays its eggs in a foam nest . It feeds on zooplankton , insect and fish larvae.
Systematics
The marble pointed tail gourami was described in 1937 by the Ceylonese zoologist and paleontologist Paules Edward Pieris Deraniyagala and is the only species in the genus Malpulutta . The generic name is derived from the Sinhalese ("mal" = flower, "pulutta" = unit Bez for the Ceylon macropod ( Belontia signata )). The species epithet kretseri honors the Ceylonese lawyer de Kretser, who discovered the fish in 1937 and gave them to Deraniyagala for identification. Malpulutta kretseri is placed in the subfamily Macropodusinae , which is the sister group of the thread fish .
Danger
The species is not classified as endangered by the IUCN .
literature
- Hans-Joachim Richter: The book of the labyrinth fish. Verlag J. Neumann-Neudamm, 1983, ISBN 3-7888-0292-8
Individual evidence
- ↑ Lukas Rüber, Ralf Britz & Rafael Zardoya: Molecular Phylogenetics and Evolutionary Diversification of Labyrinth Fishes (Perciformes: Anabantoidei). Systematic Biology, Volume 55, Issue 3, pages 374-397, 2006, ISSN 1063-5157 , doi : 10.1080 / 10635150500541664
- ↑ Malpulutta kretseri in the Red List of Threatened Species of the IUCN 1996. Posted by: Pethiyagoda, R., 1996. Retrieved on July 4, 2013.
Web links
- Malpulutta kretseri on Fishbase.org (English)