Akysis Fontaneus (Akysis fontaneus), first described by Ng, 2009 is a tiny fish in the family Akysidae (order Siluriformes). Adults typically reach 2.40 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. Recorded depth range: 0 to 2 metres. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Data Deficient.
Dorsal spines (total): 1; Dorsal soft rays (total): 5; Anal spines: 3; Anal soft rays: 7; Vertebrae: 33. Akysis fontaneus is distinguished from congeners by a combination of the following characters: weakly emarginate caudal fin, convex dorsal surface of neurocranium making predorsal profile appear steeply sloping, presence of 4 large serrations on posterior edge of pectoral spine that are more than half width of spine, predorsal length 34.5% SL, pectoral-fin length 21.7% SL (not reaching pelvic-fin origin), length of adipose-fin base 18.7% SL and interorbital distance 42.3% HL .: elongated; Cross section: compressed.
Behavioural data for Akysis Fontaneus is currently being reviewed.
Freshwater; benthopelagic; pH range: 6.8 - ?; depth range 0 - 2 m . Tropical; 2°S - 3°S, 102°E - 103°E central Sumatra (Ref.
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