Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cypriniformes (Carps) >
Nemacheilidae (Brook loaches)
Etymology: ilamensis: Name 'ilamensis' from the type locality of the new species, Ilam district.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Subtropical
Asia: Nepal.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.1 cm SL male/unsexed; (Ref. 138780)
Short description
Identification keys | Morphology | Morphometrics
This species is distinguished from its congeners by the following set of characters: scales absent; caudal peduncle length (19-22.3% SL); snout (34.5-37% HL); pre-anal length (73.1-74.3% SL); anus located immediately anterior to the anal-fin origin; horizontal T-shaped marking at the base of the caudal fin absent; large irregular dark brown blotches and mottled patterns extending along the dorsal and lateral surfaces of the body; lack of dark brown blotch on each side of the anal fin base absent; interorbital width (20.2-21.3% HL); pelvic-fin length (18.4-18.5% SL); pre-dorsal length (52.4-54.7% SL); pectoral-fin length (20-20.6% SL); body depth at the dorsal fin origin (16.1-17.5% SL); snout length (34.5-37% HL); head depth at the eye (51-54.7% HL); head length (21.1-22.2% SL); caudal-peduncle depth (10.8-11.0% SL); pelvic fin reaches slightly posterior to its base but does not extend beyond the anus; and post-dorsal length (31.6-31.9% SL) (Ref. 138780).
Body shape (shape guide): elongated; Cross section: oval.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Limbu, J.H., D. Rajbanshi, D.S. Limbu and J.K. Gurung, 2026. Turcinoemacheilus ilamensis; a new loach species from eastern Nepal (Teleostei: Nemacheilidae). Journal of Asia-Pacific Biodiversity 1-9. (Ref. 138780)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
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Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00724 (0.00347 - 0.01512), b=3.01 (2.84 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
2.9 ±0.3 se; based on size and trophs of closest relatives |
Resilience (Ref. 120179) |
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.). |
Fishing Vulnerability (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |