Antarcturus

• Main Author: Poore, Gary C. B.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Isopoda; Antarcturidae; Antarcturus; Menzies; Antarc*
• Online Access: https://zenodo.org/record/6166955; https://doi.org/10.5281/zenodo.6166955

Antarcturus zur Strassen, 1902 Type species. Antarcturus oryx zur Strassen, 1902 (subsequent designation by Stebbing 1908). Antarcturus zur Strassen, 1902: 686.— Stebbing 1908: 52 –53.— Vanhöffen 1914: 519.— Tattersall 1921: 236 –237.— Nordenstam 1933: 122 –128.— Nierstrasz 1941: 258 –259.— Menzies 1962 a: 194.— Menzies 1962 b: 88.— Kussakin 1971: 241 –243.— Menzies & George 1972: 9.— Schultz 1978: 36.— Kussakin 1982: 273 –276.— Brandt 1990: 7 –10.— Wägele 1991: 144. Diagnosis. Body weakly geniculate between pereonites 4 and 5, anterior pereon slightly elevated. Head with pair of submedian spines between eyes. Pereonites with supracoxal spines on all pereonites, with paired sublateral spines, without paired submedian spines (sometimes with tubercles), without middorsal spines. Pleonite 1 fused to remaining pleotelson; pleonites without middorsal spines, with paired submedian spines or tubercles, with pairs of sublateral tubercles or with few pairs of sublateral spines, none more prominent than others or with prominent pair of sublateral spines near midpoint, with marginal lateral spines, with prominent paired posterior sublateral spines, without prominent medial posterior spine dorsal to margin. Antenna 2 flagellum of 9 or more short articles. Pereopods 2–4 with regular rows of long setae along flexor margins of merus-propodus; unguis short, curved. Pleopod 1 of male exopod groove opening distolaterally on margin, scarcely produced at opening. Pleopod 2 of male, appendix masculina acute, about as long as endopod. Oostegites 2–4 supported by ventral coxal processes, largest on pereonite 4; oostegite 5 absent, without ventral coxal processes. Remarks. Zur Strassen (1902) separated his new genus Antarcturus from Arcturus Latreille, 1829 on the basis of the absence of a lateral covering of the mouthparts; in Arcturus (and in Arcturidae s.s.) mouthparts and usually pereopod 1 are not visible in lateral view. His differentiation is now true of Antarcturidae and related families generally (Poore 2001). Kussakin ...