Acrochordonichthys rugosus (Bleeker, 1846)
Acrochordonichthys rugosus
photo by FAO

Family:  Akysidae (Stream catfishes), subfamily: Parakysinae
Max. size:  11 cm SL (male/unsexed)
Environment:  demersal; freshwater; pH range: 7
Distribution:  Asia: Thailand, Malaysia and Indonesia.
Diagnosis:  Dorsal spines (total): 1-1; Dorsal soft rays (total): 4-5; Anal soft rays: 8-10; Vertebrae: 35-37. Generally dark brown with many irregular light brown patches. Long nasal barbels 6.5-15.6%HL. Lateral margins of head, steeply sloping; convex snout when viewed dorsally. Adipose fin with angular posterior margin. Pectoral spine with serrations on the posterior edge (Ref. 37794).
Biology:  Inhabits clear, swiftly flowing forested streams with pH of 7 and sandy or rocky bottoms. Hides under submerged logs or rocks with some leaf litter in the swifter parts of the stream. A predatory fish, ambushing balitorid loaches of Nemacheilus and sisorid catfish of the genus Glyptothorax (Ref. 37794).
IUCN Red List Status: Least Concern (LC); Date assessed: 22 October 2018 Ref. (130435)
Threat to humans:  harmless


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