Classification / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Eponymy: Charles J Simpson, California, was a friend of the author. We have been unable to find further details. (Ref. 128868), visit book page.
More on author: Costa.
Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
; agua dulce pelágico. Tropical
South America: Brazil. Verde River floodplains, upper Paraná River basin, central Brazil (Ref. 89068).
Tamaño / Peso / Age
Madurez: Lm ?  range ? - ? cm
Short description
Claves de identificación | Morfología | Morfometría
The species is distinguished from all other congeners by having series of small light blue to light yellow spots arranged in close proximity on the dorsal and caudal fins in males and oblique dark brown bars on the anal fin in females (Ref. 89068).
Body shape (shape guide): short and / or deep.
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Costa, W.J.E.M., 2012. Simpsonichthys margaritatus, a new seasonal miniature killifish from the upper Paraná River basin, central Brazilian Cerrado (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 22(4):313-318. (Ref. 89068)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Referencia
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
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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