Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Nemacheilidae
Etymology: Nemacheilus: Greek, nema, -atos = filament + Greek, cheilos = lip (Ref. 45335); cleopatra: Named after the brillant Queen of Egypt, Cleopatra (69BC-30BC). More on authors: Freyhof & Serov.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Asia: River Ba or Da Rang, Viet Nam.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.0 cm SL male/unsexed; (Ref. 40772)
Morphology | Morphometrics
soft rays: 9. 9.5 branched dorsal-fin rays; no conspicuous large black spot on anterior dorsal-fin rays; body with 9-13 vertically elongated dark blotches, reaching beyond lateral line in large specimens, 8-11 saddles along dorsal midline; no conspicuous black stripe along lateral line or at mid-dorsal longitudinal line; caudal peduncle 1.4-1.9 times longer than deep; predorsal part of body covered by embedded scales; no acuminate scales on caudal peduncle; a distinct median incision in upper lip.
Inhabits fast flowing water on open sand substratum.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Freyhof, J. and D.V. Serov, 2001. Nemacheiline loaches from Central Vietnam with descriptions of a new genus and 14 new species (Cypriniformes: Balitoridae). Ichthyol. Explor. Freshwat. 12(2):133-191. (Ref. 40772)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00327 - 0.01463), b=2.99 (2.82 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.7 ±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.).
Vulnerability (Ref. 59153
): Low vulnerability (22 of 100) .