Dascyllus trimaculatus   (Ruppell,  1829) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Ministry of Agriculture and Fisheries, Sultanate of Oman

Size: 11-14 cm.

Color: Dark reddish brown to brownish black in large specimens. Scales of body with dark hind border. Young with white blotch on nape and another in lateral line below 7th to 9th or 10th dorsal fin spines. These two blotches gradually disappear with growth. Dorsal and anal dark brown distally, light brown basally. Caudal and ventral dark. Pectoral pale to dusky with dusky brown blotch at the upper edge of base.

Head 3.2-3.5 in standard length, 4.2-4.5 in total length. Depth of body 1.5-1.7 in standard length, 2.0-2.3 in total length. Eye diameter 2.5-2.8 in head, 0.4-0.5 in snout and equal to convex interorbital space. Mouth very oblique. Maxillary almost reaching to below front border of eye. Preorbital and suborbital with a row of elongate scales, the lower borders of these finely denticulated. 4-5 irregular rows of scales on preopercle and one on inferior limb. A narrow posterior limb naked. Hind border of preopercle with minute denticulations. Scales on upper part of head reaching to end of snout, those before eyes much smaller than the others. First dorsal spine short. Second or third and fourth dorsal spines slightly longer than the others, almost as long as head without snout. Soft dorsal bluntly pointed, the first rays as long as last spines, the middle rays as long as longest dorsal spines. First anal spine short, second as long as longest dorsal spines. Soft anal similar to soft dorsal. Pectorals and ventrals subequal, longer than head. Teeth in several rows in jaws, outer row slightly enlarged. Pectoral fin longer than head. Ventral fin equal to or slightly longer than pectoral. Caudal fin slightly emarginate, the upper lobe longer than the lower. Hind border and lower border of preopercle denticulated.
Number of spines and rays in the dorsal fin: XII, 14-15; number of spines and rays in the anal fin: II, 14; number of rays in the pectoral fin: ii, 17-18; number of spines and rays in the ventral fin: I, 5; number of scale rows along the lateral line: 17-19+8; number of horizontal scale rows usually counted from origin of the dorsal fin to the lateral line and from anal origin to the lateral line: 4+1+10-11.

Dioecious, batch spawner, courtship characterized by male 'signal-jumping'. Captive pair reported to spawn thrice monthly with a total of 17 over a 7-month period, external fertilization, guarders, nesters. Larval stage duration observed in the aquarium: 21-25 days.

Remarks: Values in above description denote proportions.

Synonym (s)
Pomacentrus trimaculatus Ruppell, 1829
Dascyllus axillaris Smith, 1935
(Junior synonym)
Dascyllus niger Bleeker, 1847
(Junior synonym)
Dascyllus unicolor Bennett, 1831
(Junior synonym)
Pomacentrus nuchalis (Bennett, 1830)
(Junior synonym)
Pomacentrus trimaculatus Ruppell, 1829
(Senior synonym)
Sparus nigricans Gronow, 1854
(Junior synonym)
Pomacentrus trimaculatus Ruppell, 1828
Dascyllus axillaris Smith, 1949
Dascyllus trimaculatus de Beaufort, 1940
Tetradrachmum trimaculatum Day, 1888
Dascyllus trimaculatus Cuvier and Valenciennes, 1830
Dascyllus trimaculatus Schlegel and Muller, 1841
Dascyllus trimaculatus Gunther, 1862
Tetradrachmum trimaculatum Bleeker, 1865
Dascyllus trimaculatus Klunzinger, 1871
Tetradrachmum trimaculatum Bleeker, 1877
Dascyllus trimaculatus Gunther, 1881
Dascyllus trimaculatus Steindachiner and Denkschr, 1900
Tetradrachmum trimaculatum Steindachner, 1901
Dascyllus trimaculatus Jordan and Seale, 1907
Tetradrachmum trimaculatum M. Weber, 1913
Dascyllus trimaculatus Barnard, 1927
Dascyllus trimaculatus Ahl, 1937
Dascyllus trimaculatus Montalban, 1927
Dascyllus trimaculatus Fowler and Bean, 1928
Dascyllus trimaculatus Fowler, 1928
Dascyllus trimaculatus Duncker and Mohr, 1929
Pellochromis trimaculatus Whitely, 1929
Dascyllus trimaculatum (Ruppell, 1829)

Common Name (s)
• Three Spot Dacyllus (English)
• Three Spot Dascyllus (English)
• Domino (English)
• Kaluburang (Mahl)
• Barakkotti (Malayalam)
• Karipadatham (Malayalam)
• White-spotted Puller (English)
• Three Spot Damsel
Economic Importance and Threats
Importance:  Commercial
(Aquarium, fisheries, ornamental fish)
Cultured:  Unknown

Habitat:  Reef Associated, Coastal
Trophic Level:  Secondary Consumer
Prey:  Benthic copepods, benthic algae/weeds, planktonic crustaceans, planktonic copepods


• Andaman and Nicobar Islands, Andaman Islands (Lat: 10) (Long: 93) INDIA
• Red Sea
• Gulf of Oman
• Lakshadweep, Kavaratti Atoll (Lat: 10.55) (Long: 72.63) INDIA (Record: 01/1991-06/1992)
• Lakshadweep, Agatti INDIA
• Lakshadweep, Bitra INDIA
• Lakshadweep, Kadamatt INDIA
• Lakshadweep, Minicoy INDIA
• Lakshadweep, Suheli INDIA
• Lakshadweep INDIA
• Tamil Nadu, Tuticorin Coast INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Andaman and Nicobar Islands, North Reef Island INDIA
• Lakshadweep, Bangaram INDIA (Record: 09/02/1987-25/02/1987)
• Lakshadweep, Tinnakara INDIA (Record: 09/02/1987-25/02/1987)
• Lakshadweep, Minicoy INDIA (Record: 06/03/1987-01/04/1987)
• Lakshadweep, Kavaratti Atoll INDIA (Record: 01/1991-06/1992)
• Lakshadweep, Agatti INDIA (Record: 11/1993-01/1997)
• Lakshadweep, Bitra INDIA (Record: 11/1993-01/1997)
• Lakshadweep, Kalpeni INDIA (Record: 11/1993-01/1997)
• Karnataka, Netrani Island INDIA
• Lakshadweep, Minicoy Island (Lat: 8.11) (Long: 73.3) INDIA
• Andaman and Nicobar Islands INDIA

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Page last updated on:2011-12-08

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