Sturisoma lyra is a species of freshwater ray-finned fishbelonging to the family Loricariidae, the suckermouth armored catfishes, and the subfamily Loricariinae, the mailed catfishes. This catfish occurs in the Madeira, Solimões, Juruá, Purus, Ucayali and lower Amazon River basins, being found in Brazil, Bolivia, Peru and Colombia . This species reaches a standard length of . Fishes in the genus Sturisoma are facultative air breathers.
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