 The onefin electric ray is common off the Eastern and Western Cape Provinces of South Africa . Its range extends to central Namibia , with a single specimen recorded from <unk> Bay and a second unconfirmed sighting from Walvis Bay . A historical record of this species from Madagascar may be a misidentification . Bottom @-@ dwelling in nature , the onefin electric ray mainly inhabits bays with sandy or muddy bottoms . It is most often found in waters shallower than 50 – 100 m ( 160 – 330 ft ) , though it has been recorded from as deep as 183 m ( 600 ft ) . 
