Dascyllus marginatus   (Ruppell,  1828) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Randall, J.E.

Size: 6-14 cm.

Color: Brown, the scales with a dark hind border. A blackish blotch superiorly at base of pectoral generally present. Lips blackish. In young ones, 14 mm long, there are two almost black transverse bands, one from anterior part of spinous dorsal and a second from soft dorsal to soft anal, both bands more or less connected through the dark edge of the dorsal. In older ones first the posterior and then the anterior band gradually fade and disappear. Fins dark, especially the soft anal, and ventrals.

Height 1.6, 2 in length with caudal. Head 3.1, 3.9 in length with caudal. Length of head 1.5-1.6 in its height. Eye 2.7, about equal to convex interorbital space. Mouth very oblique. Maxillary reaching almost to below front border of eye. Snout very short, much less than eye. Teeth conical, in several series, those of the outer row much larger. Preorbital and suborbital covered with elongate scales. Lower border of both fins finely denticulated. 3-4 transverse rows of scales on preopercle and one on inferior limb. Posterior limb naked. Hind border and lower border of preopercle rather coarsely denticulated. Scales on upper part of head reaching to end of snout, those before eye much smaller than the others. First dorsal spine short. Second, third and fourth spines subequal, somewhat longer than the following and almost as long as head without snout. Soft dorsal bluntly pointed, the first ray as long as last spine, the longest rays equal to the longest dorsal spines. First anal spine short, second as long as longest dorsal spines. Soft anal similar to soft dorsal. Pectorals and ventrals subequal, slightly longer than head. Caudal distinctly emarginate or slightly forked. Dorsal spines: 12, Dorsal soft rays (total): 14-15, Anal spines: 2, Anal soft rays: 13-14. Swim by the oscillation of median or pectoral fins.

Monogamous, protogynous, benthic spawner, external fertilization, guarders, nesters.

Remarks: Values in above description denote proportions.

Synonym (s)
Pomacentrus marginatus Ruppell, 1828
Dascyllus marginatus Cuvier and Valenciennes, 1830
Heliases reticulatus Richardson, 1846
Dascyllus xanthosoma Bleeker, 1851
Dascyllus marginatus Steindachner, 1861
Dascyllus marginatus Gunther, 1862
Tetradrachmum xanthosoma Bleeker, 1865
Dascyllus marginatus Klunzinger, 1871
Tetradrachmum reticulatum Bleeker, 1872
Dascyllus reticulatus Cartier, 1874
Tetradrachmum marginatum Day, 1877
Dascyllus xanthosoma Gunther, 1881
Dascyllus marginatus Sauvage, 1891
Tetradrachmum reticulatum Steindachner, 1901
Tetradrachmum reticulatum M. Weber, 1913
Dascyllus marginatus Barnard, 1927
Tetradrachmum xanthosoma Whitely, 1927
Dascyllus marginatus Montalban, 1927
Dascyllus marginatus Fowler and Bean, 1928
Dascyllus marginatus Fowler, 1928
Pellochromis xanthosoma Whitely, 1929

Common Name (s)
• Blackbordered Dascyllus (English)
Economic Importance and Threats
Importance:  Commercial
Cultured:  Unknown

Habitat:  Reef Associated
Trophic Level:  Secondary Consumer
Prey:  Planktonic invertebrates, benthic algae/weeds


• Andaman and Nicobar Islands, Andaman Island INDIA
• Lakshadweep, Minicoy Island (Lat: 8.11) (Long: 73.3) INDIA
• Andaman and Nicobar Islands INDIA

Literature Source(s)
  • Rao, DV; Devi, K and Rajan, PT (2000) An account of ichthyofauna of Andaman and Nicobar Islands, Bay of Bengal Occasional paper no 178 Records of the Zoological Survey of India ZSI, Calcutta 1-434 Available at - NCL, Pune
  • Rouphael, T; Turak, E and Jon, B Seagrasses and mangroves of Yemen's Red Sea 41-89
  • Kemp, JM (1998) Zoogeography of the coral reef fishes of the Socotra Archipelago Journal of Biogeography 25 919-933
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at - http://www.fishbase.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 (1959) The fishing industry of Minicoy Island with special reference to the tuna fishery Indian Journal of Fisheries Indian Council of Agricultural Research 6 (1) 30-57 Available at - http://eprints.cmfri.org.in/1866/1/Article_04.pdf
  • Talwar, PK (1990) Fishes of Andaman and Nicobar Islands: A synoptic survey Journal of the Andaman Science Association Andaman Science Association, Port Blair 6(2) 71-102 Available at - NIO,Goa

Page last updated on:2011-08-08

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