Teleostei (teleosts) >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Priapella: Taken from Priapus, the Greek, and Roman god of procreation in the mithology and also = a phallus; diminutive (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic; pH range: 6.8 - 7.2; dH range: 5 - 15. Tropical; 24°C - 28°C (Ref. 26130)
Central America: Rio Grijalva system to the lower Rio Usumacinta basin in Chiapas, Mexico.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.5 cm TL male/unsexed; (Ref. 26130); 7.0 cm (female)
Inhabits rapidly flowing, preferably torrential waters. Usually found in shallow waters about 20 to 50 cm deep. Feeds on insects. Lives along with livebearing Xiphophorus alvarezi only in the Rio Palenque.
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
After 28 days of gestation, this species gives birth to 10-30 young.
Wischnath, L., 1993. Atlas of livebearers of the world. T.F.H. Publications, Inc., United States of America. 336 p. (Ref. 26130)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00456 - 0.02295), b=3.13 (2.95 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.40 se; based on food items.
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).