Shiner perch
 The shiner perch (Cymatogaster aggregata) is a common surfperch found in estuaries lagoons and coastal streams along the Pacific coast from Alaska to Baja California. It is the sole member of its genus.Shiner perches are similar to tule perches deep-bodied with a dusky greenish back and silvery sides that have a pattern combining fine horizontal bars with three broad yellow vertical bars. Breeding males turn almost entirely black the barred pattern being obscured by dark speckles.