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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Phallichthys: Greek, phallos = penis + Greek, ichthys = fish (Ref. 45335).
Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
; agua dulce pelágico; pH range: 7.0 - ? ; dH range: ? - 12. Tropical; 20°C - 40°C (Ref. 26130)
Central America: Rio Sixaola, Costa Rica.
Tamaño / Peso / Age
Madurez: Lm ?  range ? - ? cm
Max length : 3.5 cm SL macho / no sexado; (Ref. 36880)
Short description
Claves de identificación | Morfología | Morfometría
Body robust and of moderate depth. Males with long gonopodium, but not reaching base of tail. Each side with 4 (rarely 3 or 5) round or oval black blotches the size of the pupil (Ref. 36880).
Body shape (shape guide): elongated.
Collected from two creeks with slow current and from a small stagnant puddle at 40 m elevation; at temperatures between 26-34°C. Swims in small aggregations among vegetation or in shallow waters. Feeds on diatoms, desmids and detritus (Ref. 36880). Observed to occur in 10 to 50 cm deep (Ref. 26130).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Gestation period is 24 days. Gives birth to 5-20 young, rarely more.
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: Version 2025-1)
Threat to humans
Harmless
Human uses
Pesquerías: sin interés
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Referencia
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00374 - 0.01935), b=3.14 (2.95 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 2.0 ±0.00 se; based on food items.
Resiliencia (Referencia
120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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