Paracheilinus
Paracheilinus | ||||||||||||
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Carpenter's dwarf wrasse ( Paracheilinus carpenteri ), male |
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Systematics | ||||||||||||
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Scientific name | ||||||||||||
Paracheilinus | ||||||||||||
Fourmanoir , 1955 |
Paracheilinus is a genus of small wrasse from the coral reefs of the tropical Indo-Pacific .
features
Paracheilinus species are very colorful. There is an extremely strong sexual dimorphism , i. i.e., males and females are colored differently. The coloration is also very variable within a species and can be changed quickly during courtship or when showing off. Females and juveniles of closely related species are often colored very similarly. In contrast to the related genus Cirrhilabrus , the males of most Paracheilinus species have elongated fin filaments. Paracheilinus species are 4.1 to 15 centimeters long. Most species stay below ten centimeters. Their standard length is 2.8 to 4.1 times their body height. The genus was named after the wrasse genus Cheilinus , but is much more similar to the genus Cirrhilabrus , from which it only differs in the different fin formula for the dorsal fin (IX (VIII) / 11 vs. XI / 9) and the extended fin filaments in the males .
- Fin Formula : Dorsal IX (VIII) / 11; Anal III / (8) 9 (10); Pectorals (13) 14 (15); Ventral I / V; Caudal 13.
- Scale formula : SL 15–17 + 4–9 (interrupted)
- Vertebra: 25
- Branchiostegal blasting : 5
- Gill rake : 13–18
Way of life
Paracheilinus species mainly live in shallow water; fewer species occur below 40 to 50 meters. Recently, however, some have been discovered that live below 100 meters. The fish eat zooplankton and live in groups, often associated with other plankton-eating wrasse ( Cirrhilabrus and others) and anthias . In these groups, the females are always considerably outnumbered. Probably they form harem groups with a male. At night the animals hide in crevices or between the branches of Acropora corals.
species
- Paracheilinus alfiani Allen, Erdmann & Yusmalinda, 2016.
- King dwarf wrasse ( Paracheilinus angulatus ) Randall & Lubbock, 1981.
- Seychelles pygmy wrasse ( Paracheilinus attenuatus ) Randall, 1999.
- Paracheilinus bellae Randall, 1988.
- Carpenter's dwarf wrasse ( Paracheilinus carpenteri ) Randall & Lubbock, 1981.
- Blue dwarf wrasse ( Paracheilinus cyaneus ) Kuiter & Allen, 1999.
- Flagged dwarf wrasse ( Paracheilinus filamentosus ) Allen, 1974.
- Yellowfin dwarf wrasse ( Paracheilinus flavianalis ) Kuiter & Allen, 1999.
- Paracheilinus hemitaeniatus Randall & Harmelin-Vivien, 1977.
- Red dwarf wrasse ( Paracheilinus lineopunctatus ) Randall & Lubbock, 1981.
- McCosker's dwarf wrasse ( Paracheilinus mccoskeri ) Randall & Harmelin-Vivien, 1977.
- Paracheilinus nursalim Allen & Erdmann, 2008.
- Red Sea dwarf wrasse ( Paracheilinus octotaenia ) Fourmanoir in Roux-Estève & Fourmanoir, 1955. ( type species )
- Paracheilinus paineorum Allen, Erdmann & Yusmalinda, 2016.
- Paracheilinus piscilineatus (Cornic, 1987).
- Paracheilinus rennyae Allen, Erdmann & Yusmalinda, 2013.
- Red-tailed flag-wrasse ( Paracheilinus rubricaudalis ) Randall & Allen, 2003.
- Paracheilinus togeanensis Kuiter & Allen, 1999.
- Paracheilinus walton Allen & Erdmann, 2006.
- Paracheilinus xanthocirritus Allen, Erdmann & Yusmalinda, 2016.
literature
- Allen, GR, Erdmann, MV & Yusmalinda, NLA (2016): Review of the Indo-Pacific Flasherwrasses of the genus Paracheilinus (Perciformes: Labridae), with descriptions of three new species. Journal of the Ocean Science Foundation, 19: 18-90.
- Helmut Debelius , Rudie H. Kuiter : Wrasse. Ulmer, Stuttgart 2002, ISBN 3-8001-3973-1 .
- Randall, John E., and Mireille L. Harmelin-Vivien. A review of the labrid fishes of the genus Paracheilinus with description of two new species from the Western Indian Ocean. Bull. Mus. natn. His. nat. Paris (1977): 329-342.
- Randall, John E., and Roger Lubbock. Labrid fishes of the genus Paracheilinus, with descriptions of three new species from the Philippines. Japanese Journal of Ichthyology 28.1 (1981).
Web links
- Paracheilinus on Fishbase.org (English)