Classification / Names
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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: punctulatus: From the Latin punctulatus, meaning with dots, in reference to the rows of blue dots on flank in males, a condition distinguishing this species from all other species of the subgenus Simpsonichthys.
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 authors: Costa & Brasil.
Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
; agua dulce demersal. Tropical
South America: temporary canals of the upper rio Paracatu drainage, rio São Francisco basin in Brazil.
Tamaño / Peso / Age
Madurez: Lm ? range ? - ? cm
Max length : 2.9 cm SL macho / no sexado; (Ref. 58746); 2.4 cm SL (female)
Short description
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 14 - 19; Radios blandos anales: 17 - 19; Vértebra: 26 - 27. Differs from all other species of the subgenus Simpsonichthys by having longitudinal rows of light blue dots on flank in males (vs. absence) and a long filamentous ray on tip of dorsal fin in males, reaching the posterior position of caudal fin (vs. reaching basal portion of caudal fin). Can be differentiated from all congeners by the unique combination of the following characters: pelvic fin present (vs. absent), second pharyngobranchial teeth absent (vs. present), ventral process of posttemporal short (vs. long), 18-19 dorsal-fin rays in males and 14-15 in females (vs. 15-17 in males, 12-13 in females), long filamentous ray on tip of dorsal fin males (vs. filamentous rays short or absent), five alternating bright blue and pink to red bars on head side in males (vs. never a similar color pattern), pectoral fin pink with blue spots in males (vs. hyaline), and absence of black spots on dorsal fin in males (vs. presence of black spots on basal portion of dorsal fin). Caudal fin round (Ref. 58746).
Body shape (shape guide): short and / or deep.
Inhabits temporary canals at floodplains (Ref. 58746).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Costa, W.J.E.M. and G.C. Brasil, 2007. Simpsonichthys punctulatus n. sp. - a new seasonal killifish (Teleostei: Cyprinodontiformes: Rivulidae) from the upper rio São Francisco basin, central Brazil. Vertebr. Zool. 57(1):57-61. (Ref. 58746)
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): 3.1 ±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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