 B" (known as the "bristled lanternshark") is now tentatively believed to be the same as this species.It is grouped with the velvet belly lantern shark ("E. spinax"), Caribbean lanternshark ("E. hillianus"), fringefin lanternshark ("E. schultzi"), broadbanded lanternshark ("E. gracilispinis"), combtooth lanternshark ("E. decacuspidatus"), and dwarf lanternshark ("E. perryi") in having irregularly arranged, needle-shaped dermal denticles.