Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Poeciliidae
(Poeciliids) > Poeciliinae
Etymology: Phallotorynus: Greek, phallos = penis + Greek, otos = ear + Greek, rhinos = nose (Ref. 45335); psittakos: From the Greek noun psittakós, a parrot, alluding to the distribution of the species, restricted to the Rio Paraguay. Paraguay comes from the Guarany paraguá-í, meaning Parrot River; noun in apposition.. More on authors: Lucinda, Rosa & Reis.
This species is synonym of Phallotorynus victoria Oliveros, 1983 following Meyer & Etzel, (2006). The species page will be removed.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
South America: lower Rio Paraguay drainage in Paraguay.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.8 cm SL male/unsexed; (Ref. 56059); 2.4 cm SL (female)
Morphology | Morphometrics
soft rays: 9 - 10;
Vertebrae: 31 - 32. Distinguished by the following autapomorphy: very large lateral process on base of fifth median anal-fin radial of adult males. Differs from Phallotorynus jucundus by having 7 or 8 dorsal-fin rays (vs. 9 or 10) and from P. fasciolatus by its color pattern with one spot (vs. spotless); from P. pankalos by its color pattern comprising of one spot (vs. six to nine spots). Differs from P. jucundus and P. victoriae by having 13 epipleural ribs (vs. 11 or 12); and differs further from P. victoriae by having 9 gonopodial rays vs. 8 (Ref. 56059).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lucinda, P.H.F., R.S. Rosa and R.E. Reis, 2005. Systematics and biogeography of the genus Phallotorynus Henn, 1916 (Cyprinodontiformes: Poeciliidae: Poeciliinae), with description of three new species. Copeia 2005(3):609-631. (Ref. 56059)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00493 - 0.03690), b=3.05 (2.81 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .