Agnathia aria Staples 2021, sp. nov.

• Main Author: Staples, D. A.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Pycnogonida; Pantopoda; Callipallenidae; Agnathia; Agnathia aria; Antarc*; Antarctica
• Online Access: https://doi.org/10.5281/zenodo.4694608; http://treatment.plazi.org/id/D8463B16FFF55615FF14F913FC23FB44

Agnathia aria sp. nov. Figure 1 A–L; Plate 1 A–H Material examined. Holotype, gravid female (NMV J75180), Victoria. West Head, Flinders, sieved from algae at the outer edge of the reef at low tide, J. Chuk, 4 January 2010. Paratypes. Victoria. One male ( NMV J75181), Port Phillip, Point Lonsdale, edge of rock platform, R. Wilson & G.C.B Poore, 6 March 1991. One larvigerous male (NMV J75182), Gabo I. Harbour, 5m, on red alga. VNPMS stn 69-2.1, 25 March 1996. One larvigerous male (NMV J75183), two miles south of Marengo on fine red algae, LWM, 19 March 1973. W.F. Seed. One male, ovigerous (NMV J75184), Aireys Inlet, W.F. Seed, 28 January 1968. One male (NMV J75185), Bunurong, stn Bun 2.5a, T. O’Hara, 1 April 1997. One male (NMV J73291), Point Lonsdale kelp beds, 20 m, amongst sorting’s, Port Phillip, D.A. Staples, January 1982. Other material. Victoria. One juvenile ( NMV J62428), Beware Reef (37º 49.336’S, 148º 47.393’E), 5 to 6m, airlift, T. O’Hara, 15 April 1998. One juvenile (NMV J62429), Portsea Ocean Beach, sieved from Amphibolis antarctica and brown algae at the edge of large rock pool at low tide, J. Chuk, 8 December 2009. Description. (In some cases images of male paratypes have been used to illustrate characters common to both sexes). Female holotype. Trunk (Fig. 1A, Plate 1B) moderately elongate, gently arched, midline smooth, fully segmented in dorsal view, ventral and dorsal surface segments 1 to 3 lowly inflated distally, ventral segmentation line between segments three and four not evident (Fig. 1D; Plate 1C, male), lateral processes a little longer than basal width, processes 1, 2 and 3 separated by 60–70% of basal widths, processes 3 and 4 touching or almost touching (Plate 1H, male), all lateral processes separated from trunk by faint suture line, suture line also straddling trunk behind ocular tubercle, spines on lateral processes inconspicuous, in order 1:2:2:1, those on legs 1 and 4 restricted to inner margins. Neck region of cephalon short, width at narrowest point wider than trunk width, ...