s from the other five species of the genus with dark-pigmented peritoneum by the following combination of characters: D 58-73, A 48-61; anterior gill arch with 25-35 long rakers; vertebrae, precaudal 30-35, total 66-75; vomer with 1-5 fangs; paired bulbs at basis of penis not developed; no ventral flexure of anteriormost vertebrae; ripe males have rather thick penis; fresh specimens bright red while preserved ones light-brownish with dark-blue peritoneum; its otolith similar to that of B. bicolor (Ref. 121928).