(Genus):Lower jaw without barbel. Tip of lower jaw not projectiong beyond upper jaw. Preopercular margin with spines. Swimbladder consisting of two chambers, anterior chamber with a pair of appendages. (Species):Preopercular margin with 4〜6 spines. Lower jaw with 4 (2 pairs) sensory pores. Tip of snout not projecting beyond upper jaw. Position of tip of upper jaw higher than ventral margin of eye. Posterior margin of upper jaw reaching to posterior margin of eye. Eye diameter 15.0〜17.0% of SL. Interorbital width 31.3〜34.4% of HL. Head covered with cycloid scales, side of body including breast covered with ctenoid scales. Tip of pectoral fin extending beyond anus, tip of pelvic fin reaching to anus. Oral valve near symphisis of lower jaw darkly pigmented.
Distribution:
Off Suriname.
Remarks:
There are many species of this genus in western Atlantic. For identification, shape of appendages of swimbladder and number of gill rakers are also significant.