Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Nemacheilidae
Etymology: Schistura: Greek, schizein = to divide + Greek, oura = tail; an allusion to forked caudal fins (Ref. 45335); quasimodo: Named for Quasimodo, the hump-backed character in Victor Hugo's 'Notre Dame de Paris'. More on author: Kottelat.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
Asia: Nam San basin, a Nam Ngum tributary in Laos.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.9 cm SL male/unsexed; (Ref. 43281)
Morphology | Morphometrics
Body cylindrical, greatest depth in front of dorsal-fin origin, sometimes with a conspicuous hump; head flat with pointed profile and depressed snout; nostril flap pointed, barbel-like, reaching anterior margin of eye; anterior nostril pierced on front side of flap; processus dentiformis present; mouth subterminal, lips smooth; no median notch in upper lip, lower lip interrupted medially; lateral line reaching at most level of anal-fin origin; anus at equal distance from pelvic-fin base and anal-fin origin; 8.5 branched dorsal-fin rays; 5.5 branched anal-fin rays; caudal fin emarginate, with 9+8 branched rays; axillary pelvic lobe present; 6-8 broad dark bars on body, quite regularly shaped, usually wider than interspaces; dorsal fin with two large black blotches along base; black bar at caudal-fin base not reaching lower and upper margin of caudal peduncle; body sometimes plain dark brown, independent of size (Ref. 36949).
Found in riffles, among stones (Ref. 36949).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kottelat, M., 2001. Fishes of Laos. WHT Publications Ltd., Colombo 5, Sri Lanka. 198 p. (Ref. 43281)
IUCN Red List Status (Ref. 123251)
Endangered (EN) (B1ab(i,ii,iii)+2ab(i,ii,iii)); Date assessed: 19 January 2011
CITES (Ref. 123416)
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=0.00631 (0.00268 - 0.01487), b=3.02 (2.85 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.0 ±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 (13 of 100) .