A yellow scolloped margin runs round their external edges, verged with black; above which are some lunate spots of a sky blue.
Cl., to which as a variety Cleve unites Lewis' form, appears to resemble it only in the lunate marks.
The chief distinction lies in the lunate tail, which has a keel on either side at base, as in the mackerels.
lunate lu·nate (lōō'nāt')
Shaped like a crescent.