Creagrutus gracilis is a species of freshwater ray-finned fish, a characin, belonging to the family Stevardiidae.Vari, R.P. and A.S. Harold, 2001. Phylogenetic study of the Neotropical fish genera Creagrutus Günther and Piabina Reinhardt (Teleostei: Ostariophysi: Characiformes), with a revision of the Cis-Andean species. Smith. Cont. Zool. 613:1-239.
Location It is native to South America, occurring in the Amazonas and Loreto regions of Peru and at several localities along the eastern slopes of the Andean Cordilleras in Ecuador.
Size This species reaches a length of .
Etymology The species name is derived from Latin for 'thin' or 'slender,' referring to its comparatively shallow body relative to many of its congeners.
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