Xyrichtys pastellus, a new razorfish from the southwest Pacific, with discussion of the related X. sciistius and X. woodi

John E. Randall, John L. Earle and Luiz A. Rocha

aqua, International Journal of Ichthyology, pp. 149-158, Volume 14, Issue 3 – 10 July 2008


Five species of razorfishes of the genus Xyrichtys are known from the central and western Pacific: X. woodi from the Hawaiian Islands; X. sciistius (formerly a synonym of X. woodi) from Japan and Taiwan; X. pastellus, described as new from two specimens from Lord Howe Island and three from Elizabeth and Middleton Reefs, New South Wales; X. halsteadi from Papua New Guinea to Tahiti; and X. koteamea from Easter Island. The first three form a complex of closely related species that are distinguished mainly by color, but also by DNA. In addition, X. woodi has a lower modal gill-raker count than the other two sister species.

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