The Simpsonichthys nielseni lives in the benthopelagic, freshwater environment.
Simpsonichthys nielseni Described Costa, WJEM (2005) - Simpsonichthys nielseni sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): a new annual killifish from the Sao Francisco River basin, Brazil. Zootaxa 1039: 57-64. More