Simpsonichthys rufus
Simpsonichthys rufus is a species of killifish from the family Rivulidae. It is found in the São Francisco River basin in Brazil in South America. This species reaches a length of . References

rufus
Fish of the São Francisco River basin
Taxa named by Wilson José Eduardo Moreira da Costa
Taxa named by Dalton Tavares Bressane Nielsen
Taxa named by André Cordeiro de Luca
Fish described in 2001