Simpsonichthys rufus

Simpsonichthys rufus is a species of killifish from the family Rivulidae.^[2] It is found in the São Francisco River basin in Brazil.

Simpsonichthys rufus
Conservation status
Critically Endangered  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cyprinodontiformes
Family:	Rivulidae
Genus:	Simpsonichthys
Species:	S. rufus
Binomial name
Simpsonichthys rufus W. J. E. M. Costa, Nielsen & de Luca 2001
Synonyms
Hypsolebias rufus (Costa, Nielsen & de Luca, 2001)

Description

Simpsonichthys rufus reaches a standard length of 5.0 cm (2.0 in).^[3]