Abstract
A new trichiurid, Lepidopus calcar, is described.The species was discovered from the Colahan Seamount of the Hawaiian Ridge at a depth between 270 and 350m.It is characterized by a stout spur-like second anal spine not developed in adults of other species of Lepidopus.Number of vertebrae and dorsal fin-rays is less than in L.caudatus (Euphrasen) and more than in both L.xantusi Goode et Bean and L.dubius Parin et Mikhailin.