A new species of Grammatostomias (family Melanostomiatidae) from the western North Atlantic

The genus Grammatostomias is most easily distinguished from other genera of the family by the presence of a streak or loop of luminous tissue on the sides of the body above the lateral row of serial photophores. Within the genus, the form of the loop or streak, and the number of rays in the pectoral fin appear to be valid characteristics upon which the several species can be distinguished