Megalobrycon melanopterum Megalobrycon melanopterum. Holótipo ANSP 8035 Copyright©: Amanda L. Labadie, Academy of Natural Sciences Megalobrycon melanopterum. Holótipo ANSP 8035 Copyright©: Kyle R. Luckenbill, Academy of Natural Sciences Megalobrycon melanopterum. Holótipo ANSP 8035 Copyright©: Kyle R. Luckenbill, Academy of Natural Sciences