| Gymnotidae (Naked-back knifefishes), subfamily: Electrophorinae |
| 148.5 cm TL (male/unsexed) |
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benthopelagic; freshwater |
| South America: lowland floodplain and terra-firme systems of the intercratonic Amazon Basin; including some streams in the Guiana Shield. |
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This species is distinguished by the following characters: pectoral-fin rays 20-28; lateral-line pores 124-186 ((vs. 32-38 and 88-101, respectively, in E. electricus); narrow head (vs. wide in E. voltai); the distance between medial margins of contralateral dentaries at transverse through last two ventral pores is 2-3 times shorter than E. voltai; deep skull, cleithrum lies between vertebrae 1 and 2 (vs. depressed with cleithrum lying between vertebrae 5 and 6, in E. electricus and E. voltai). Low-voltage electric organ discharges or EOD duration 1.24-1.78 ms, high-voltage EOD 151 V (20.0 cm TL) to 572 V (60.9 cm TL) (Ref. 120918). |
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Not Evaluated (N.E.) Ref. (130435)
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| harmless |
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