Pyrrhulina maxima is a species of freshwater ray-finned fish belonging to the family Lebiasinidae, which includes the pencilfishes, splash tetras and related fishes. This fish is found in South America in the upper Amazon River. Weitzman, M. and S.H. Weitzman, 2003. Lebiasinidae (Pencil fishes). p. 241-251. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil.
Size This species reaches a length of .
Etymology The fish's name is Latin for "large" or "great", referring to a larger size compared with the "closely related" P. brevis and P. (Copella) nattereri.
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