Marble knifefish (Rhamphichthys marmoratus), first described by Castelnau, 1855 is a large fish in the family Rhamphichthyidae (order Gymnotiformes). Adults typically reach 65.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.
Physical description for Marble knifefish is currently being compiled.
Behavioural data for Marble knifefish is currently being reviewed.
Freshwater; benthopelagic. Tropical South America: Amazon, Araguaia and Ucayali River basins.
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
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