Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical; 20°N - 4°N
Asia: Tham Sai Yok Noi, Thailand.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 6.8 cm SL male/unsexed; (Ref. 37842)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 11 - 12; Anal soft rays: 8. Absence of eyes and pigmentation; presence of a nuchal cavity; slightly compressed body, tapering posteriorly; head depressed, conical when seen from above (Ref. 37842).
Body shape (shape guide): elongated.
Cave-restricted species. Inhabits headwater stream with a relatively low volume of water flowing over rocks, alternating with small pools and gravel-bottomed shallow reaches (Ref. 42927). Few individuals were seen adhering to rocks in fast-flowing, well-aerated water or swimming in the pools (Ref. 42927). Exhibits agonistic behavior upon encounter (Ref. 42927). Feeds on benthic microorganisms (Ref. 58784).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Proudlove, G.S., 1997. A synopsis of the hypogean fishes of the world. p. 351-354. In Proceedings of the 12th International Congress of Speleology, La Chaux de Fonds, Switzerland. vol. 3. (Ref. 27297)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
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