Irrawaddy Mystus

Distinguished from its congeners by a unique combination of the following characters: length of dorsal-fin base 13.7-16.7% SL, dorsal to adipose distance 8.6-14.2% SL, interorbital distance 28.4-31.8% HL, eye diameter 9.2-11.3% HL and a rounded snout (Ref. 41209).

Gnathostoma Infestation. Parasitic infestations (protozoa, worms, etc.)

Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.

Dorsal spines (total): 2; Dorsal soft rays (total): 7; Analsoft rays: 12 - 13; Vertebrae: 51 - 54

Found in rivers and larger streams (Ref. 94495).

Occurs in deeper rocky areas and tree roots (Ref. 37771). Species caught throughout the year. Enters flooded forest during the months of high water (July-October). Feeds on fish, shrimps and crabs (Ref. 9497).

fisheries: minor commercial

Hemibagrus microphthalmus is a species of catfish found in the Irrawaddy, Sittang and Salween rivers of India, Myanmar and Thailand.