Neoarcturus halei (Kensley, 1984) comb. nov. (figure 6D, E) Microarcturus halei Kensley, 1984: 243–245, figure 14a–f. Material examined Nine males (one dissected), five ovigerous females, 20 juveniles, SAM A17809. Two males, one female, NMV J47036. Diagnosis Eyes pigmented. Dorsum irregularly weakly tuberculate and with dominant pairs of submedial and dorsolateral spines on pereonites 2 and 3 (especially female). Pereonites 2 and 3 of female with conical lateral projections (weaker in male); pereonite 4 tapering posteriorly, pereonites 5–7 and pleonites parallel-sided. Pleotelson dome with dorsolateral spines, apex almost right-angled, not apically produced as spine, posterolateral margins with well-defined angular flanges. Male pleonite 2 strongly elevated as paired dorsolateral bosses, pleonite 3 with lower dorsomedial boss. Posteroventral margin of pereonite 4 of male with bilobed flat plate. Male to 5.3 mm; female to 6.0 mm. Remarks The paired submedial and dorsolateral spines on only pereonites 2 and 3 are diagnostic. Kensley’s (1984) figures illustrate the variability in degree of tuberculation in this species, some larger individuals being smoother than others. The species has been collected off KwaZulu-Natal and Transkei, eastern South Africa, at 150–775 m depth.

Published as part of Poore, G. C. B., 2003, Revision of Holidoteidae, an endemic southern African family of Crustacea, and re-appraisal of taxa previously included in its three genera (Isopoda: Valvifera), pp. 1805-1846 in Journal of Natural History 37 on page 1822