Abstract
The generic name Triso is proposed for the epinephelin fish recent authors have identified as Trisotropis dermopterus (Temminck et Schlegel). Trisotropis Gill is a junior synonym of Mycteroperca Gill. Triso is distinctive in its short head, broad interorbital, foreshortened neurocranium, anteriorly inclined parasphenoid, high and laterally oriented frontoparietal crests, high dorsal fin-ray counts, and pouch-like esophageal swellings. Altiserranus woorei Whitley from New South Wales is placed in the synonymy of T. dermopterus. Altiserranus Whitley, type species Epinephelus multinotatus (Peters), is synonymized with Epinephelus Bloch. T. dermopterus occurs in the Northern Hemisphere off Japan, Korea, Taiwan, and China, and in the Southern Hemisphere off eastern and western Australia; thus it is antitropical in distribution. Available evidence indicates that Triso may be most closely related to the New World genus Paranthias Guichenot.
