Redescription of Polydactylus sexfilis (Valenciennes in Cuvier and Valenciennes, 1831), a senior synonym of P-kuru (Bleeker, 1853) with designation of a lectotype (Perciformes : Polynemidae)

Polydactylus kuru (Bleeker, 1853), originally described from Jakarta, Java, Indonesia, has been regarded as a valid species. However, examination of t wo syntypes of Polynemus kuru revealed their close similarity to three synt ypes of Polynemus sexfilis Valenciennes in Cuvier and Valenciennes, 1831, i n the synonym of which the former is herein included. Polydactylus sexfilis , which is widely distributed in the Indo-Pacific region, is redescribed on the basis of a newly-designated lectotype and two paralectotypes, and a wi de range of non-type material. The species is characterized by six pectoral filaments, 15 or 16 pectoral fin rays, 61-67 pored lateral line scales, 8- 10 scales above the lateral line, 12-14 below 11-14 and 15-18 upper and low er series gill rakers, respectively (27-31 total), teeth present on vomer a nd a long second dorsal fin ray (mean 26% [range 21-30%] of standard length ).