Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Siluriformes (Catfishes) >
Sisoridae (Sisorid catfishes) > Glyptosterninae
Etymology: Exostoma: Greek, exos = outside + Greek, stoma = mouth (Ref. 45335); microadiposa: Name 'microadiposa' from the Greek word 'mikros' and Latin word 'adeps', meaning 'small' and 'fat', in reference to the slender adipose fin in this species.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Subtropical
Asia: China.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 6.2 cm SL male/unsexed; (Ref. 137474)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 6; Anal soft rays: 4. This species is distinguished by the following set of characters: posterior extremity of the adipose-fin base confluent with the upper procurrent caudal-fin rays; a combination of parallel striae and rounded plaques on the anterolateral surfaces on the lips; caudal-peduncle depth 9.9-12.0% (10.5% ± 0.01) SL; caudal-peduncle length 17.3-21.8% (19.7% ± 0.02) SL; eye diameter 6.7-9.0% (7.8% ± 0.01) HL; interorbital distance 31.8-37.6% (35.6% ± 0.02) HL; anal-fin base length 5.7-7.5% (6.5% ± 0.01) SL; body depth at anus 10.5-13.2% (12.3% ± 0.01) SL; dorsal to adipose distance 14.6-17.8% (16.4% ± 0.01) SL; tip of nasal barbels exceeding anterior edge of eye but not reaching posterior orbital margin (Ref. 137474).
Body shape (shape guide): elongated; Cross section: flattened.
This species is found in clear, fast flowing waters less than 50 cm deep, typically found in streams, at the confluence of streams, or around the banks of larger rivers. This habitat features a hard bottom substrate composed of rocks, gravel, and pebbles (Ref. 137474).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Chen, Y., H. Tan and D. He, 2025. Exostoma microadiposa (Sisoridae), a New Glyptosternine Catfish from the Zayul River, South Tibet. Journal of Ichthyology Vol. 65(2):191-204. (Ref. 137474)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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