Abstract
A trichiurid, Lepturacanthus roelandti (Bleeker, 1860), previously regarded as a synonym of L. savala (Cuvier, 1829), is redescribed as a valid species on the basis of the holotype of the former and four non-type specimens. This species differs from the two valid congeners, viz., L. savala and L. pantului (Gupta, 1966), in having a gold sheen or yellowish-silver color when fresh (vs. steel-blue with metallic sheen in the latter two), posterior margin of maxilla reaching or extending beyond a vertical through hind eye margin (vs. not extending beyond a vertical through hind eye margin), pectoral fin slightly longer than snout (vs. slightly shorter than snout), tip of pectoral fin clearly extending beyond dorsal outline when vertically orientated (vs. not reaching dorsal outline), gill rakers absent or reduced to stiff ossified structures (vs. well developed, spinelike), first anal fin spine situated below the 40th–43rd dorsal fin ray (vs. below 35th–39th in L. pantului and 35th–40th in L. savala), precaudal vertebrae 42–43 (vs. 35–39 in L. pantului and 36–40 in L. savala), and attaining larger sizes [882–1200 mm in total length (TL) vs. less than 800 mm TL in the latter two].
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Chakraborty, A., van Oijen, M., Lim, K. et al. Lepturacanthus roelandti (Bleeker, 1860), a valid species of hairtail (Perciformes: Trichiuridae). Ichthyol Res 53, 41–46 (2006). https://doi.org/10.1007/s10228-005-0312-4
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DOI: https://doi.org/10.1007/s10228-005-0312-4