Austroarcturus dayi (Kensley, 1977) Poore, 2003

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), Journal of Natural History 37, pp. 1805-1846 : 1812

publication ID	1464-5262
DOI	https://doi.org/10.5281/zenodo.5260347
persistent identifier	https://treatment.plazi.org/id/DC5987CB-8F73-AE55-3226-FE0DFC51BE31
treatment provided by	Felipe
scientific name	Austroarcturus dayi (Kensley, 1977)
status	comb. nov.

Treatment

Austroarcturus dayi (Kensley, 1977) View in CoL comb. nov.

(figure 1B, C)

Microarcturus dayi Kensley, 1977: 246–249 , figures 6, 7; Kensley, 1978b: 28, figure 11c–e; Kensley, 1984: 240–243, figure 13a–f.

Material examined

Five males (one dissected), one ovigerous female, four juveniles, SAM A17802 View Materials . One male, NMV J47029 View Materials .

Diagnosis

Body with pair of submedial dorsal rows of tubercles dominated by pair of spines on head and pair of large irregular spines (especially in female) on pereonite 3. Pereonites 2 and 3 with lateral triangular wings (much more pronounced in female), discontinuous; pereonite 4 with short rectangular wings in female, obsolete in male; pereonites 6–7 and pleonites with discontinuous wings in female. Pleonite 3 with mid-dorsal spine on dorsal dome. Male to 7.0 mm; female to 7.5 mm.

Remarks

Austroarcturus dayi is the only species with a strong spine on pleonite 3. The female has a prominent pair of submedial dorsal plate-like spines. It occurs off Saldanha Bay, south-eastern South Africa, at 9–18 m depth.