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Siluriformes (Catfishes) >
Akysidae (Stream catfishes) > Parakysinae
Etymology: hypselurus: From the Greek hypselos for high and oura for tail, in reference to the relatively tall neural spines of the caudal vertebrae (Ref. 45707).
Eponymy: Dr Heinrich Breitenstein (1848–1930) was a German physician who served with the Dutch East Indies army for 21 years. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Tropical
Asia: Borneo, Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.2 cm SL male/unsexed; (Ref. 45707)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 1; Dorsal soft rays (total): 5; Anal spines: 0; Anal soft rays: 10; Vertebrae: 42. Differentiated by its relatively tall neural spines in the caudal vertebrae, shorter caudal peduncle (26.0% SL versus 30.7-36.8), longer snout (35.5% HL versus 27.2-34.1), more wide-set eyes (interorbital distance 30.9% HL versus 27.2-34.1), fewer vertebrae (42 versus 44-45), and smooth (versus serrated) dorsal spine (Ref. 45707).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ng, H.H. and D.J. Siebert, 1998. A revision of the akysid catfish genus Breitensteinia Steindachner with descriptions of two new species. J. Fish Biol. 53(3):645-657. (Ref. 45707)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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