C. melanurus is a four-winged species with two large wings at the front of its body and two smaller wings behind them. Atlantic flyingfish tend to reach around , but the
standard length for measurement is 226 millimeters. The longest recorded individual was , although this length is highly uncommon. Like many other flyingfishes, the Atlantic flyingfish has a
cylindrical body, large tail, and pectoral fins that it uses for flight. Atlantic flyingfish have generally green to blue coloration
dorsally, and white or silver
ventrally. They also have a dark dorsal fin, a transparent anal fin, and a darkly colored caudal fin.
Distinguishing traits Although present in some species of
Cheilopogon,
palatine teeth are absent in
C. melanurus. Moreover, the chin barbels of the Atlantic flyingfish are short in relation to other fish of the same genus. The Atlantic flyingfish can be easily mistaken for the
congeneric Mediterranean flyingfish,
Cheilopogon heterurus, as they closely resemble one another and have comparable features.
Juvenile traits Their juvenile appearance differs from adult Atlantic flyingfish. The dorsal fins of juveniles are often unevenly pigmented, and they tend to have short mandibular
barbels on their chins which are sensory organs used to sense their surroundings. Young Atlantic flyingfish up to can have transparent pectorals and often swim in harbors or bays. :124 The pectoral fin rays of juveniles are short in comparison to adults. At the time of hatching, Atlantic flyingfish are only in length and
sexual maturity is not reached until around in length. ==Distribution and habitat==