Dorsal blade formed by single pterygiophore. AB 10, BR 3, SUA 1. SUA well close to A. SUAB absent. The ventral margin of AB without keeled scales. Triangular transparent membrane present above anal fin base. Lateral view of anal pterygiophore base region behind anal photophores sphenoid in shape (Fig.). Body height from origin of dorsal fin to base of postabdominal spine 84.0〜102.7%, head length 28.8〜32.1% of SL. Eye diameter 51.8〜65.5%, upper jaw length 66.0〜73.5% of HL.
Distribution:
All tropical and temperate seas. In the Atlantic, known from Gulf of Mexico, Caribbean Sea, and Gulf of Guinea.
Remarks:
This species differs from other member of the genus in body height more than 82% of SL and SUA well close to A. (Uyeno and Aizawa)