Datnioides undecimradiatus (Roberts & Kottelat, 1994)
Mekong tiger perch
photo by Baird, I.G.

Family:  Lobotidae (Tripletails)
Max. size:  40 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater, potamodromous
Distribution:  Asia: middle and lower Mekong basin.
Diagnosis:  Dorsal spines (total): 12-12; Dorsal soft rays (total): 16-19; Anal spines: 3-3; Anal soft rays: 10-11. Body depth 2.1-2.4 times in SL; relatively narrow vertical bars, the first bar usually not continued onto thorax or across ventral surface of body and the second bar originating at the base of 5th to 6th dorsal-fin spine; usually 11 branched anal-fin rays (Ref. 27732); about 17 scale rows between upper part of lateral line and dorsal base (Ref. 10425).
Biology:  Inhabits mainstreams and large tributaries (Ref. 58784). Feeds on fishes and shrimps (Ref. 58784).
IUCN Red List Status: Vulnerable (VU); Date assessed: 24 February 2011 (A2d) Ref. (130435)
Threat to humans:  harmless


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