Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Cyprinidae
(Minnows or carps) > Cyprininae
Etymology: Sinocyclocheilus: Latin, sino, sina = from China + Greek, kyklos = circle + Greek, cheilos = lip (Ref. 45335); donglanensis: Named for its collection locality, Donglan County
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Asia: Subterranean tributary of the Hongshuihe River of the Xijiang River system in Guangxi, China.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.4 cm SL male/unsexed; (Ref. 57607)
Morphology | Morphometrics
soft rays: 5 - 8;
Vertebrae: 37 - 38. Differs from all its congeners by the following combination of characters: body completely scaled with well developed eyes; lateral line curved possessing 57-64 scales; pectoral fin not reaching the origin of the pelvic fin and the last unbranched ray of the dorsal fin clearly serrated along its posterior edge; 8-9 predorsal vertebrae; 8-9 gill rakers; joints of dentary-angulars not close to each other at the isthmus; and a slightly inferior mouth with the upper jaw (6.2-7.4% SL) protruding slightly beyond the lower one (5.7-6.7% SL) (Ref. 57607).
Inhabits subterranean river with water surface about 10-20 m inside the mouth of a small cave located about 50-100 m up from the bottom of a 4 square km lowland depression in a mountainous region (Ref. 57607). The subterranean water flows out during the flood season, making the lowland depression looks like a small lake (Ref. 57607).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Zhao, Y., K. Watanabe and C. Zhang, 2006. Sinocyclocheilus donglanensis, a new cavefish (Teleostei: Cypriniformes) from Guangxi, China. Ichthyol. Res. 53:121-128. (Ref. 57607)
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=0.01175 (0.00548 - 0.02519), b=3.00 (2.82 - 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.).
Vulnerability (Ref. 59153
): Low vulnerability (19 of 100) .