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Teleostei (teleosts) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Phallotorynus: Greek, phallos = penis + Greek, otos = ear + Greek, rhinos = nose (Ref. 45335); dispilos: Specific name from the Greek, 'díz' meaning twice, doubly, two, and 'spílos' meaning spots, alluding to the color pattern; noun in apposition..
More on authors: Lucinda, Rosa & Reis.

Issue
This species is synonym of Phallotorynus vistoriae Oliveros, 1983 following Meyer & Etzel (2006). The species page will be removed.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic. Tropical

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South America: Rio Parana drainage in Paraguay.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 1.8 cm SL male/unsexed; (Ref. 56059); 2.5 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 7 - 10; Anal soft rays: 9 - 10; Vertebrae: 32. Distinguished by the following autapomorphies: first proximal radial of dorsal fin of adult females located between arches neural of 14th and 15th vertebrae; wide and short trowel-like appendix of gonopodium at tip of R3; lateral border of left and right halves of trowel-like appendix of gonopodium concave; left and right halves of trowel-like appendix separated along approximately five-sixths of its whole extension; two round to elliptical dark blotches along ventral half of flanks; and presence of sexually dimorphic teeth (males teeth pointed with acute border; females teeth truncate, their superior border straight or slightly oblique. Further differs from its congeners by pleural ribs not associated with haemal arches in females; anal-fin proximal radials parallel in females. In addition, the number of epipleural ribs distinguishes Phallotorynus dispilos from P. jucundus and P. victoriae (13-14 vs. 11-12, respectively) (Ref. 56059).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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. 130435)

Endangered (EN) (B1ab(ii,iii)); Date assessed: 03 February 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 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): 3.0 ±0.4 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.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Phallotorynus dispilos Lucinda, Rosa & Reis, 2005