Teleostei (teleosts) > Cypriniformes
(Carps) > Nemacheilidae
Etymology: Schistura: Greek, schizein = to divide + Greek, oura = tail; an allusion to forked caudal fins (Ref. 45335); spiesi: Named for John Spies, Australian speleologist and pioneer in ecological and archaeological cave studies and conservation in Thailand..
More on authors: Vidthayanon & Kottelat.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
Asia: Tham Phra Wang Daeng cave in Thailand.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.9 cm SL male/unsexed; (Ref. 51711)
Morphology | Morphometrics
soft rays: 8. Body pinkish white in life, without color pattern; developed suborbital flap in male, with groove behind flap extending for some distance anteriorly and posteriorly; a long, pointed flap-like nostril tube; eye subcutaneous, vestigial, in a small pit, or apparently missing; eye pit or slit always present and connected with groove bordering suborbital flap in male or with a groove in homologous position in female; eye becoming indistinct at about 8 cm SL; snout depressed; over about 6.5 SL, back humped behind nape, especially in males (Ref. 51711).
Inhabits cave, most commonly found resting on the bottom of shallow pools with flowing water. Sometimes occurs in mid-water, or also co-exists with Neolissochilus subterraneus in deeper areas with little flow. Swims along the surface of pools with its snout raised up, out of the water while moving it head from side to side. Large fish occur in the deeper zone, far from the entrance of the cave.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Vidthayanon, C. and M. Kottelat, 2003. Three new species of fishes from Tham Phra Wang Daeng and Tham Phra Sai Ngam caves in northern Thailand (Teleostei: Cyprinidae and Balitoridae). Ichthyol. Explor. Freshwat. 14(2):159-174. (Ref. 51711)
IUCN Red List Status (Ref. 126983)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00311 - 0.01538), b=3.03 (2.86 - 3.20), 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
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).