Abudefduf notatus   (Day,  1870) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Shao, K.T.

Size: 12.7-17 cm.

Color: In preserved specimens deep brown, lighter below, thorax more or less silvery. Scales of sides of tail with a transverse silvery streak. A transverse silvery band, one scale broad, from below sixth or seventh dorsal spines to anal region, generally followed by a second one from below last dorsal spine to anterior part of anal. Two more similar bands may be present, especially in young specimens, one below anterior dorsal spines and one before dorsal. A large black blotch at origin of lateral line. Hind border of opercle also often dark. In young ones the preorbital, suborbital, and all the opercular bones have a slivery edge. Dorsal and anal dark, the distal half of the soft part of both fins lighter. Caudal and pectorals light brown or yellowish. Ventrals dusky. Identified by the yellow tail.

Height 1.7-1.8, 2.4-2.5 in length with caudal. Head 3.1-3.5, 4.5-4.6 in length with caudal. Length of head 1.3 in its height. Eye 2.7-3.2, slightly more than snout and equal to or less than convex inter orbital space. Mouth somewhat oblique. Maxillary reaching to below front border of eye or nearly so. Teeth crowded, in a single row, those of the upper jaw slightly compressed, rounded at tip, those of the lower jaw more compressed, tricuspid. Preorbital not notched, deeper than suborbital. A row of scales on suborbital, reaching on posterior part of preorbital. Three transverse rows of scales on preopercle and a fourth row on inferior limb. Posterior preopercular limb scaly. Scales on upper part of head reaching to nostrils. First dorsal spine less than eye, fourth to fifth spines longest, almost equal to snout and eye together. Soft dorsal pointed, the longest rays equal to snout and eye. First anal spine less than half length of second, which is as long as longest dorsal spine. Soft anal similar to soft dorsal. Pectorals as long as head, ventrals with the first ray produced into a filament, somewhat longer. Caudal forked, the lobes pointed. Three rows of scales between lateral line and scaly sheath of dorsal below last spine. Identified by the yellow tail. Dorsal spines (total): 13; Dorsal soft rays (total): 13 - 14; Anal spines: 2; Anal soft rays: 13 - 14

Remarks: Values in above description denote proportions.

Synonym (s)
Abudefduf clarki Snyder, 1911
Chrysiptera paucifasciata Fowler, 1946
Glyphidodon notatus Day, 1870
Indoglyphidodon abbotti Fowler, 1944
Chrysiptera melas Jordan and Snyder, 1902
Abudefduf notatus Fowler and Bean, 1928
Abudefduf notatus Fowler, 1928

Common Name (s)
• Yellow Tailed Sergeant Major (English)
• Yellowtail Sergeant (English)
• Dusky Damsel (English)
Economic Importance and Threats
Importance:  Commercial
(Ornamental fish)

Habitat:  Reef Associated
Trophic Level:  Secondary Consumer
Prey:  Zooplankton, benthic algae/weeds, other plants


• Andaman and Nicobar Islands, Andaman Islands (Lat: 12.5) (Long: 92.75) INDIA
• Andaman and Nicobar Islands, Andamans INDIA
• Lakshadweep Islands INDIA (Record: 11/1993-01/1997)
• 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
  • Integrated Taxonomic Information System (ITIS) Available at - http://www.itis.gov.
  • Ocean Biogeographic Information System Available at - http://www.iobis.org/
  • Durville, P; Chabanet, P and Quod, JP (2003) Visual Census of the Reef Fishes in the Natural Reserve of the Glorieuses Islands (Western Indian Ocean) Western Indian Ocean J. Mar. Sci. WIOMSA 2 95-104
  • Allen, GR and Mohammed, A (2003) Coral Reef Fishes of Indonesia Zoological Studies 42(1) 26299 Available at - Digital Information Resource Center, Pune.
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at - http://www.fishbase.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
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Murty, VS (2002) Marine ornamental fish resources of Lakshadweep CMFRI Special Publication CMFRI 72 1-134 Available at - http://eprints.cmfri.org.in/3536/1/Special_Publication_No_72.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
  • Rao, GC (1991) Distribution of plants and animals on the rocky sea shores of Andaman and Nicobar Islands Journal of the Andaman Science Association Andaman Science Association, Port Blair 7(2) 30-42 Available at - NIO, Goa

Page last updated on:2011-09-02

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