This species is distinguished by the following characters: ventral outline of head U-shaped, widest at terminus of branchial opening and lateral-line pores 88-101 (vs. ovoid, widest anterior to branchial opening, 112-146 in E. voltai); differs from E. varii with skull depressed, cleithrum lies between vertebrae 5 and 6 (vs. (vs. skull deep with cleithrum lying between vertebrae 1 and 2), pectoral-fin rays 32-38 (vs. 20-28) and lateral-line pores 88-101 (vs. 124-186). Low-voltage (Sachs’ organ) electric organ discharges or EODs and high-voltage (main/Hunter’s organ) with head-positive monophasic waveform. Low voltage EOD 2.03-2.19 ms duration; high-voltage EOD 480 V at 760mm TL (Ref. 120918).

Description: body elongated and sub-cylindrical at pectoral girdle, progressively compressed posteriorly; no scales; superior mouth large with one row of conical teeth on each jaw; anal and caudal fins seamlessly conjoined; anus and urogenital papilla separated and located anterior to ventral margin of branchial opening. Colour of head and body brown to blackish and with a clear band along the body, below lateral line, variably present; three abdominal pairs of electric organs (Ref. 12225, 120918).