(Family):Eye large, directed dorsolaterally, with keyhole-shaped pupil. Snout depressed. Jaws teeth small, lacking large fangs. No serial photophores. Adipose fin present. (Genus):Dorsal origin in advance of pelvic insertion. Horizontal diameter of eye greater than 1.3 times in snout length. Anus located just behind posterior end of inner pelvic-fin rays. Palatine teeth conspicuous, relatively large, forming a broad band. A enlarged fang present on each side of vomer. (Species):HL 31.6〜34.2% of SL, snout length 11.6〜13.6%, premaxillary length 12.1〜14.3%, length of pectoral fin 20.6〜24.3%, length of pelvic fin 16.0〜20.9%*.
Distribution:
On the border of continental shelf from off Cape Cod to Gulf of Mexico, Caribbean Sea, Suriname, and off the Amazon. Type locality-Barbados.