| Family: |
Gymnotidae (Naked-back knifefishes), subfamily: Electrophorinae |
| Max. size: |
171.1 cm TL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: generally in the north-flowing rivers of the Brazilian shield and south-flowing rivers of the Guyana shield. Occurs with Electrophorus varii in some streams in the Guiana Shield (Ref. 120918). |
| Diagnosis: |
This species differs from E. electricus by having a ventral outline of head ovoid, widest anterior to branchial opening (vs. U-shaped) and with 112-146 lateral-line pores (vs. 88-101); differs from E. varii by having the skull depressed (vs. deep), cleithrum lies between vertebrae 5 and 6 (vs. between vertebrae 1 and 2), wide head (vs. narrow); distance between medial margins of contralateral dentaries at transverse through last two ventral pores 2-3 times longer in E. voltai than E. varii; low-voltage electric organ discharges or EOD duration 1.72 ms; high-voltage EOD 860 V at 121.9 cm TL (Ref. 120918). |
| Biology: |
|
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 08 July 2021 Ref. (130435)
|
| Threat to humans: |
harmless |
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