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Members of the Gymnotidae:. a.Sternarchorhynchus curvirostris (Boulenger; b.Steatogenys elegans (Steindachner)
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Gymnotus fasciatus.
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Members of the Gymnotidae:. c.Sternarchus brasiliensis (Reinharde); d.Eigenmannia virescens (Valenciennes)
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Gymnotus electricus.
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Steatogenys elegans (Steindachner).
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Gymnotus Electrieus, or Electrical Eel.