| Citation | Costa, W.J.E.M., 2005. Simpsonichthys nielseni sp. n. (Teleostei: Cyprinodontiformes: Rivulidae): a new annual killifish from the São Francisco River basin, Brazil. Zootaxa 1039:57-64. |
| DOI / ISBN | |
| Paper URL | |
| Ref. No. | 56725 |
| Language | English |
| Usage | used in part |
| Remarks | |
| Find this reference in | Google Scholar | Scirus | Species used from this reference |