males tend to pursue larger females, and the pairs swim together in a circle. The male presses closely on one side of the female, interlocking pectoral fins and gyrating. The female then rolls over and eggs are released for the male to fertilize. Males are mature at 55–60 mm, and females at 65 mm. Etymology of name Notropis, comes from the Greek noton, meaning "back keel". The species name atherinoides comes from the Greek atherina, meaning silverside; and from the Greek suffix oides, meaning resemblance. Trivia Emerald shiners resemble members of the silverside family, hence the species name atherinoides, silverside-like. This is in reference to the Old World silverside family. Other common names include: Buckery shiner, common emerald shiner, lake shiner, lake silver side, plains shiner, river emerald shiner, shiner. Plains shiner (Notropis percobromus) was recently incorporated into the emerald shiner species designation. References External links A fact sheet by Earl J. S. Rook – part of a collection of fact sheets put together on organisms found in the Boundary Waters Canoe Area. Ohio Department of Natural Resources life history notes Notropis Fish of Canada Freshwater fish of the United States Fish of the Great Lakes Taxa named by Constantine Samuel Rafinesque Fish described in 1818