| Citation | Ferraris, C.J. Jr., 2003, Rhamphichthyidae (Sand knifefishes).. p. 492-493. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. |
| Ref. | 36685 Ferraris, C.J. Jr., 2003 |
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| Named Used as Valid | Gymnorhamphichthys hypostomus |
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