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Simpsonichthys parallelus.jpg
Simpsonichthys parallelus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cyprinodontiformes
Family: Aplocheilidae
Genus: Simpsonichthys
Type species
Simpsonichthys boitonei
A. L. de Carvalho, 1959

Simpsonichthys is a genus of aplocheilid fish, all species in the genus are restricted to freshwater habitats in eastern or central Brazil. Formerly one of the larger genera in the family, the subgenus Hypsolebias was elevated to full genus in 2011, thus removing many of the species formerly included in Simpsonichthys. Spectrolebias and Xenurolebias are valid genus and not subgeneras of Simpsonichthys.


There are currently 13 recognized species in this genus:


  1. ^ Costa, W.J.E.M. (2012): Simpsonichthys margaritatus, a new seasonal miniature killifish from the upper Paraná River basin, central Brazilian Cerrado (Cyprinodontiformes: Rivulidae). Ichthyological Exploration of Freshwaters, 22 (4): 313-318.

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