Spectrolebias reticulatus
{{Short description|Species of fish}}
{{Speciesbox
| image =
| genus = Spectrolebias
| species = reticulatus
| authority = Costa & Nielsen 2003{{Cite web|url=https://www.gbif.org/species/2349185|title=Simpsonichthys reticulatus Costa & Nielsen, 2003}}{{Cite web|url=https://eol.org/pages/204906|title = Simpsonichthys reticulatus Costa & Nielsen 2003 - Encyclopedia of Life}}
| synonyms =
}}
Spectrolebias reticulatus is a species of annual killifish in the genus Spectrolebias of the family Rivulidae, endemic to seasonal waters in the Paraguay, Tocantins–Araguaia, Xingu and Mamoré–Grande basins in Bolivia, Brazil and Paraguay.Nielsen, D.T.B. & Pillet, D. (2015): Spectrolebias bellidoi, a new annual fish (Cyprinodontiformes: Rivulidae: Cynolebiatinae) from the upper Río Grande basin, Amazon basin, Bolivia. aqua, International Journal of Ichthyology, 21 (4): 180-187.Nielsen, D.T.B. (2013): Spectrolebias brousseaui (Cyprinodontiformes: Rivulidae: Cynolebiatinae), a new annual fish from the upper río Mamoré basin, Bolivia. Neotropical Ichthyology, 11 (1): 81-84.Nielsen, D.T.B. & Brousseau, R. (2013): Spectrolebias pilleti, a new annual Killifish (Cyprinodontiformes: Rivulidae: Cynolebiatinae) from the upper río Mamoré basin, Bolivia. aqua, International Journal of Ichthyology, 19 (3): 115-122. like other Spectrolebias species, reticulatus is threatened by habitat loss with its entire known range being in the area flooded by the Belo Monte Dam.{{cite journal | author1=Nielsen, D.T.B. | author2=M. Martins | author3=R. Britzke | year=2014 | title=Description of a new species of annual fish, Maratecoara gesmonei (Cyprinodontiformes: Rivulidae) from the rio Xingu system, Amazon basin, Brazil | journal=aqua, International Journal of Ichthyology | volume=20 | issue=2 | pages=87–96 }}