Austronanus

Just, Jean & Wilson, George D. F., 2006, Revision of Southern Hemisphere Austronanus Hodgson, 1910, with two new genera and five new species of Paramunnidae (Crustacea: Isopoda: Asellota), Zootaxa 1111, pp. 21-58 : 47

Austronanus specimen A

( Fig. 13 )

Material examined. Ovigerous Ψ, 1.20 mm, Campbell Island, New Zealand, off Boulder Beach, Smoothwater Bay, 52°32'S 169°12'E, sediment and terrestrial fibrous root detritus, 15 January 1980, P.C. Terrill, CA­172, AM P68206.

Remarks. The single specimen has a damaged head; parts of pereopod I, and all other pereopods are missing. It appears to be close to the new species Austronanus aucklandensis described above, including a 5­segmented antennula, but the shape of the frontal margin of the head differs, to judge from the undamaged parts, the body is slightly broader, the uropods are shorter, and the female operculum is more pointed.

By analogy with the presence of closely related paramunnid species on the various subantarctic islands documented by Just and Wilson (2004), Austronanus specimen A probably represents a separate, new species, but the specimen is not suitable for description.

Figures

FIGURE 13. Austronanus specimen A. cv, ventral view of head; bas, basis; op, operculum; p 1, pereopod I; up, uropod. Habitus scale bar: 0.5 mm.