sil·ver·side 
(sĭlvər-sīd′) also sil·ver·sides (-sīdz′)
(sĭlvər-sīd′) also sil·ver·sides (-sīdz′)n.
Any of various chiefly marine fishes of the order Atheriniformes, characteristically having a broad silvery band along each side and including the grunion.