Duymaeria flagellifera   (Valenciennes)  1839 (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: The Nature Conservation and Aquatic Sciences Service

Size: 19 cm.

Color: In preserved specimens very variable. Generally lighter or darker brown, with or without traces of light longitudinal bands or rows of spots on the body. Operculum often light behind, with a dark brown patch in the middle of the light area, sometimes also forming a longitudinal streak downwards. The males are generally darker than the females and have more or less developed black blotches along the base of the dorsal. There is often a dark spot, bordered above by white, between the first and second dorsal spines, the rest of the fin is more or less striped with dark brown lines or reticulations, forming sometimes darker patches, which join those of the body. Anal sometimes similarly marked, or with alternating dark and light patches along its basal part. Caudal more or less distinctly barred vertically. Pectorals hyaline, with or without a dark band along their base. Ventrals sometimes dark, or hyaline with rows of milky white spots. In the female the fins are more or less uniformly yellowish.

Height 2.5-2.6, 2.9-3.1 in length with caudal. Head 2.8-3, 3.3-3.8 in length with caudal. Height of head about equal to its length. Eye 4.1-5, equal to nearly flat inter orbital space and 1.5-1.8 in snout. Mouth rather large, somewhat protractile, slightly oblique. Maxillary reaching to below front border of eye. Two rows of deciduous scales on preopercle, which leave a broad posterior and inferior limb naked. The denticulations of the hind border of the preopercle are fine and numerous, coarser and less numerous in small specimens. Dorsal spines rather strong, slightly increasing in length posteriorly, the first less than snout, the last somewhat more than snout. The membranes deeply incised between each spine and supported by a bundle of tiny rays which stand out from the spines. These supports greatly elongate into long filaments in the first and second or first to third spines of males. Soft dorsal slightly higher than spinous part behind, the membranes between the rays scarcely incised. Anal spines strong, the third longer, but less strong than the second and about as long as longest dorsal spine. The membranes incised behind the spines as in the dorsal and supported in the same way, these supports sometimes also produced into filaments. Soft anal similar to soft dorsal. Pectorals equal to head without snout. Ventrals equal to snout and eye together. Caudal slightly rounded. Height of caudal peduncle about equal to snout.

Remarks: Values in above description denote proportions.

Synonym (s)
Ctenolabrus flagellifer Cuvier and Valenciennes 1839
Ctenolabrus aurigarius Richardson 1844
Ctenolabrus rubellio Richardson
Ctenolabrus flagellifer Schlegel 1845
Crenilabrus nematopterus Bleeker 1851
Crenilabrus enneacanthus Bleeker 1853
Crenilabrus spilogaster Bleeker 1854
Cossyphus filamentosus Peters 1855
Duymaeria flagellifer Bleeker 1856
Duymaeria japonica Bleeker
Duymaeria aurigaria Bleeker
Duymaeria rubellio Bleeker
Duymaeria nematopterus Bleeker 1862
Duymaeria enneacanthus Bleeker
Duymaeria spilogaster Bleeker
Duymaeria amboinensis Bleeker 1862
Duymaeria aurigaria Gunther 1862
Duymaeria flagellifera Gunther
Duymaeria spilogaster Gunther
Duymaeria filamentosa Gunther
Duymaeria caeruleomaculata Gunther
Duymaeria enneacanthus Gunther
Duymaeria nematoptera Gunther
Duymaeria aurigaria Kner 1865
Duymaeria filamentosa Gunther 1866
Duymaeria filamentosa Steindachner 1869
Duymaeria flagellifera Gunther 1880
Duymaeria caeruleomaculata Gunther 1881
Duymaeria japonica Steindachner and Doderlein 1887
Duymaeria flagellifera Jordan and Snyder 1902
Duymaeria (amboinensis) M. Weber 1913
Pteragogus (Duymaeria) filamentosus Barnard 1927
Duymaeria flagellifera Fowler 1928
Duymaeria nematoptera Fowler
Duymaeria flagellifera Fowler and Bean 1928
Duymaeria guttata Fowler and Bean
Duymaeria flagellifera P. J. Schmidt 1930
Duymaeria enneacanthus Herre and Myers 1937
Duymaeria nematopterus Herre and Myers
Duymaeria flagellifera de Beaufort 1940

Common Name (s)
Economic Importance and Threats



• Lakshadweep INDIA (Record: 2003)
• Lakshadweep, Agatti INDIA (Record: 1980)
• SEYCHELLES (Record: 1980)

Literature Source(s)
  • Wafar, MVM (2003) Checklists of reef fauna Available at - http://www.reefindia.org/
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Beaufort, LF (1940) The fishes of the Indo-Australian Archipelago A. J. Reprints agency, Karol Bagh, New Delhi 8 508 pp Available at - NIO, Goa
  • Jones, S and Kumaran, M (1980) Fishes of the Laccadive Archipelago The Nature Conservation and Aquatic Sciences Service, Trivandrum, Kerala 760 pp Available at - NIO, Goa

Page last updated on:2009-11-24

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