Spinarcturus natalensis Kensley 1978

• Main Author: Poore, Gary C. B.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Isopoda; Antarcturidae; Spinarcturus; Spinarcturus natalensis; Indian; Seta; Antarc*
• Online Access: https://zenodo.org/record/6109379; https://doi.org/10.5281/zenodo.6109379

Spinarcturus natalensis Kensley, 1978 Fig. 3 Spinarcturus natalensis Kensley, 1978 a: 136 –138, figs 7, 8.— Kensley 1978 b: 33 –34, fig. 15 F. b g h i c e f p 3 d p 4 j p 5 Material examined. Holotype. South Africa, off Natal, 27 ° 59 ’5, 32° 40.8 ’E, 550 m (Meiring Naude stn SM 86), SAM A 15473 (male, 6.0 mm). Paratype. Collected with holotype, SAM A 15473 (ovigerous female, 8.2 mm). Other material. South Africa, off Natal (Meiring Naude stn SM 103), SAM A 15474 (1 male, 2 juveniles). Supplementary redescription. Pereopod 2 carpus twice as long as merus, convex along flexor margin; propodus almost as long a carpus, convex distally on flexor margin; dactylus with unguis as long as dactylus body; ischium with 1 marginal and 1 submarginal setae, merus with 2 marginal and 2 submarginal setae, carpus with 4 marginal and 3 submarginal setae, propodus with 3 marginal and 3 facial setae, dactylus with 3 marginal and 3 mesial facial seta. Pereopod 3 with similar setation, articles about as long but broader than those of pereopod 2. Pereopod 4 with similar setation to but distal articles especially shorter than pereopod 2. Pereopod 6 linear, 1.2 times as long as pereopod 2. Male pleopod 1 exopod thickened proximally, lamellar distally, with broad curved proximal depression on posterior face, filled with mat of long fine setae extending to mesial margin; exopod margin otherwise with plumose setae; endopod as long as exopod. Male pleopod 2 with appendix masculina simple, tapering, 1.8 times as long as endopod. Uropodal endopod subtriangular, with 2 or 3 distal robust setae, exopod slightly shorter than endopod, ovoid-tapering, with 2 distal robust setae. Ovigerous female with ovoid oostegites on pereopods 1–4, each supported by oblique coxal spines, most prominent on pereopod 4; oostegite 5 an oval disc on anterior margin of pereonite 5 supported by short coxal projection. Distribution. Indian Ocean, off South Africa, Natal; 550– 680 m. Remarks. Examination of the male and female types confirmed most of Kensley’s (1978 a) ...