SILVERSIDES - ATHERINIDAE
General:
Most species rather small, slender and elongate with forked tail. Slight lateral compression with distinct silver line on flank and large eyes.

Two widely separated dorsal fins, the first with flexible spines and the second with one spine followed by soft rays; anal fin with one spine followed by soft rays; pectoral fins high on body; mouth small and terminal; no lateral line; broad silvery lateral band
Etymology

Greek, atherina, the Greek name for the eperlane
REEF SILVERSIDE
Hypoatherina harringtonensis