Simpsonichthys santanae

Simpsonichthys santanae is a species of killifish from the family Rivulidae native to the Paraná River basin in South America. This species reaches a length of 3.0 cm (1.2 in). ^[1]

S. santanae female

Simpsonichthys santanae
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cyprinodontiformes
Family:	Rivulidae
Genus:	Simpsonichthys
Species:	S. santanae
Binomial name
Simpsonichthys santanae (Shibatta & Garavello, 1992)
Synonyms[1]
Cynolebias santanae Shibatta & Garavello, 1992