Acheronaster tumidus H.E.S. Clark, 1982

Mah, Christopher L., 2021, The East Pacific / South Pacific Boundary: New taxa and occurrences from Rapa Nui (Easter Island), New Caledonia and adjacent regions, Zootaxa 4980 (3), pp. 401-450 : 439

Acheronaster tumidus H.E.S. Clark, 1982

Figure 16A–E

H.E.S. Clark 1982: 39; H.E.S. Clark & McKnight 2001: 180.

Taxonomic comment. This represents the first record of this species since its description by H.E.S. Clark (1982) and extends the range from the Kermadec Islands and Australia to Norfolk Ridge.

Occurrence. Kermadec Islands, north of New Zealand and coast of New South Wales, Australia New Caledonia, 110– 300 m

Material examined. MNHN IE-2013-6608 . Kaimon-Maru Bank , Norfolk Ridge, New Caledonia, 24°44′4.6212″S, 168°9′51.7248″E, 269 – 300. Coll. Lozouet, Boisselier & Richer-IRD, aboard N/ O Alis, NORFOLK 1 . CP 1678, 22 June 2001, 1 dry spec. R =18.1, r=7.7 .

Figures

FIGURE 16. Acheronaster tumidus MNHN IE-2013-6608 (New Caledonia). A. Abactinal. Scale bar equals 2.5 cm. B. Abactinal surface close-up. Scale bar equals 0.5 cm C. Actinal surface. Scale bar equals 2.5 cm. D. Lateral view showing marginal plates. Scale bar equals 0.5 cm. E. Furrow spine close-up. Scale bar equals 0.75 cm. F. Acheronaster sp. In situ ROV image from Rapa Nui. Image courtesy A. Mecho.