Falcate chameleon catfish (Acrochordonichthys gyrinus), first described by Vidthayanon & Ng, 2003 is a small fish in the family Akysidae (order Siluriformes). Adults typically reach 10.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Data Deficient.
Dorsal spines (total): 2; Dorsal soft rays (total): 4 - 5; Anal spines: 0; Anal soft rays: 10; Vertebrae: 39. Concave posterior margin of the pectoral fin; head depth 9.8-11.4% SL; dorsal to adipose distance 7.4-8.6% SL; body depth at anus 8.3-10.5% SL; maximum width of humeral process 16.3% its length; and anterior margin of anal fin and posterior margin of adipose fin straight . Caudal fin emarginate .: elongated.
Behavioural data for Falcate chameleon catfish is currently being reviewed.
Freshwater; demersal. Tropical known only from the type locality, the Yom River at Phitsanulok, part of the upper Chao Phraya basin in Thailand.
crustaceans and benthic organisms (Ref
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