Cryosignum lunatum Hale 1937, comb. nov.

• Main Authors: Just, Jean, Wilson, George D. F.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2007
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Isopoda; Paramunnidae; Cryosignum; Cryosignum lunatum; Prydz Bay; Davis Station; Davis-Station; Hale; Menzies; Hodgson; Boat Harbour; Adelie Land; Antarc*; Antarctica
• Online Access: https://zenodo.org/record/5684098; https://doi.org/10.5281/zenodo.5684098

Cryosignum lunatum (Hale, 1937), comb. nov. Figs 5–6 Paramunna lunata Hale, 1937: 41, fig. 17. Pleurosignum lunata? — Menzies (1962: 55). Pleurosignum lunata. — Kensley (1977: 259). Paramunna antarctica (Richardson, 1908), identification by Hale (1937: 38, fig. 15), here determined. Not Austrosignum grande Hodgson, 1910. — Synonymy proposed by Kussakin (1982: 94). Not Paramunna lunata. — Brandt (1999: 130, figs 1–2). Type fixation. Holotype, terminal male, SAMA C 3725. — Original designation. Material examined. Holotype. Terminal ɗ, 2.7 mm, Antarctica, Adelie Land, Main Base, Boat Harbour, 67 °S 142 ° 36 ’E, 3.5–7 m (2–4 fms), September 1913, SAMA C 3725. Paratype. Terminal ɗ lacking pleotelson and all pereopods, same data as holotype, SAMA C 3729. Other material. 3 young ɗ, 2 Ψ, identified as Paramunna antarctica (Richardson, 1908) by Hale (1937), same data as holotype and paratype, SAMA C 6339. 1 fully developed Ψ, Antarctica, Prydz Bay, Davis Station, 68 o 34.5 'S 77 o 57 'E, M. Tucker, Site A, 24 January 1982, NMV J 4766. 2 near terminal ɗ, Antarctica, Prydz Bay, Davis Station, 68 o 34.5 'S 77 o 53 'E, M. Tucker, Site C, 25 January 1982, NMV J 4775. 1 Ψ, Antarctica, Prydz Bay, Davis Station, 68 o 38 'S 77 o 48 'E, M. Tucker, Site 9, 6 January 1982, NMV J 55501. 1 ovigerous Ψ, Antarctica, Prydz Bay, Davis Station, 68 o 34.5 'S 77 o 53 'E, M. Tucker, Site C, 4 June 1982, NMV J 4777. Description. Body width 0.57 length in female, 0.43–0.53 in male (largest value terminal male), widest in female at pereonite 3, in terminal male at pereonite 1. Head longer in male than female, length 0.71 width in terminal male, otherwise length 0.46 width; length posterior to eyestalks 1.4 anterior length, 2.5 anterior length in terminal male; head of terminal male posteriorly fused to pereonite 1. Frontal margin without angular lateral margins adjacent to antennae, shallow convex, almost straight medially. Eyestalks in female length 2.75 width, terminal male length 4.5 width, apex rounded, shaft before apex approximately ...