Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Cyprinidae
(Minnows or carps) > Labeoninae
Etymology: Ptychidio: Greek, ptyx, ptychos = fold (Ref. 45335).
More on author: Myers.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Subtropical
Asia: Zhujiang River in China. Occurrence in Taiwan doubtful.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 33.0 cm TL male/unsexed; (Ref. 111347); common length : 27.0 cm SL male/unsexed; (Ref. 35840); max. published weight: 563.00 g (Ref. 111347)
Adults inhabit gravel bottom of streams (Ref. 9671). Utilized for food (Ref. 89718).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Huang, H. et al., 1987. The freshwater fishes of China in coloured illustrations. The freshwater fishes of China in coloured illustrations. (Ref. 9671)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00521 - 0.01670), b=3.10 (2.94 - 3.26), in cm total length, based on LWR estimates for species & Subfamily-BS (Ref. 93245
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (23 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .