Simpsonichthys marginatus

Simpsonichthys marginatus is a species of killifish from the family Rivulidae. It is found in the São Francisco River basin, Brazil.

Simpsonichthys marginatus
Conservation status
Critically Endangered  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cyprinodontiformes
Family:	Rivulidae
Genus:	Simpsonichthys
Species:	S. marginatus
Binomial name
Simpsonichthys marginatus W. J. E. M. Costa & G. C. Brasil, 1996
Synonyms
Hypsolebias marginatus (Costa & Brasil, 1996)

Description

Simpsonichthys marginatus reaches a standard length of 6.0 cm (2.4 in).^[2]