Giganthias serratospinosus, a new serranid (Perciformes: Serranidae: Anthiinac) from the island of Lombok in Indonesia

A new species of anthiine fish (Serranidae) belonging to the genus Giganthias from southeastern Indonesia is described. This is the second species recorded for this genus and the first record of this genus in Indonesian waters. The new species, Giganthias serratospinosus, is clearly separable from the other member of the genus, G. immaculatus, in morphometrics and meristics. The key characteristics of this species include: first to fourth dorsal-fin spines and pelvic-fin spine with expanded, coarsely serrated tips; pectoral-fin rays 13-14, soft dorsal-fin rays 12.