Simpsonichthys Rufus (Simpsonichthys rufus), first described by Costa, Nielsen & de Luca, 2001 is a small fish in the family Rivulidae (order Cyprinodontiformes). Adults typically reach 5.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.
Physical description for Simpsonichthys Rufus is currently being compiled.
Behavioural data for Simpsonichthys Rufus is currently being reviewed.
Freshwater; pelagic. Tropical South America: São Francisco River basin, Brazil.
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