Hemibagrus pluriradiatus (Vaillant, 1892)

Ng, Heok Hee & Kottelat, Maurice, 2013, Revision Of The Asian Catfish Genus Hemibagrus Bleeker, 1862 (Teleostei: Siluriformes: Bagridae), Raffles Bulletin of Zoology 61 (1), pp. 205-291 : 261

HEMIBAGRUS PLURIRADIATUS SPECIES GROUP

Artificial key to the members of the H. pluriradiatus species group

1. Body grey; length of adipose-fin base 38–44% SL; sensory pores large, arranged in vertical columns along sides of body, visible to naked eye ( Myanmar and western Thailand) ........... ................................................................................. H. imbrifer

– Body brown; length of adipose-fin base 28–39% SL; sensory pores small, not visible to naked eye......................................2

2. Post-adipose distance 13–14% SL body mottled brown (southern Myanmar) ............................................................ H. variegatus

– Post-adipose distance 9–12% SL body uniform brown..........3

3. Dorsal to adipose distance 10% SL (Hainan Island)................ ........................................................................... H. hainanensis

– Dorsal to adipose distance 0–9% SL......................................4

4. Adipose fin in contact with dorsal fin; interorbital distance 28–31% HL (southern China, northern Vietnam and Laos)..... ......................................................................... H. pluriradiatus

– Adipose fin separated from dorsal fin by 6–9% SL; interorbital distance 31–34% HL (central Vietnam)................ H. centralus