Akysis fontaneus Ng, 2009
Akysis fontaneus
photo by Ng, H.H.

Family:  Akysidae (Stream catfishes), subfamily: Akysinae
Max. size:  2.35 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater; pH range: 6.8; depth range 0 - 2 m
Distribution:  Asia: Indonesia. Presently known only from the type locality in the Batang Hari drainage in central Sumatra (Ref. 80541).
Diagnosis:  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 (Ref. 80541).
Biology: 
IUCN Red List Status: Data deficient (DD); Date assessed: 22 October 2018 Ref. (130435)
Threat to humans:  harmless


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