Epimeria robustoides Loerz & Maas & Linse & Coleman 2009, sp. n.

• Main Authors: Loerz, Anne, Maas, Elizabeth, Linse, Katrin, Coleman, Charles Oliver
• Format: Other/Unknown Material
• Language: unknown
• Published: 2009
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Epimeriidae; Epimeria; Epimeria robustoides; Weddell Sea; Weddell; Coleman
• Online Access: https://zenodo.org/record/3791525; https://doi.org/10.5281/zenodo.3791525

Epimeria robustoides Lörz & Coleman, sp. n. urn:lsid:zoobank.org:act: 96CEBCCA-C3EB-4219-AC2B-C6E81BD852D1 Figs 2–5 Epimeria robusta. – Bamard, 1958: 108; 1961: 103.– McCain 1971: 161.– De Broyer and Klages 1991: 164.– Coleman 1994: 560. Material examined. Holotype. Ovig. female 40 mm. 72°35.67´5S, 18°8.17´W, depth 604–656 m, collected during the Polarstern cruise ANT III 1985 by Agassiz-trawl, 27.I.1985, station 273. Etymology. The species is named robustoides because of its morphological similarity to Epimeria robusta. Diagnosis. Body (Fig. 2A, B) robust. Posterior margin of pereonites 5–6 with small medial protrusion, pereonite 7 with shallow keel, pereonite 7 and posterior margins of metasome segments 1–2 with an elevation (in lateral view). Metasome segments 1–3 with mid-dorsal keel, metasome segment 3 and urosomite 1 with pointed tooth. Urosomite 3 with shallow mid-dorsal keel. Coxa of pereopods 1–3 tapering distally, apically rounded (Figs 4A, B, E). Propodus of gnathopods 1–2 expanded distally, with well-developed palm. Coxa of pereopod 4 very large, with wide posteroventral angle projecting somewhat ventrally. Pereopod 5 (Fig. 5D) ba- sis with posteromarginal tooth, basis of pereopod 6 with similar tooth but larger, pereopod 7 basis (Fig. 5C) widened proximally, but without tooth, only posterodistal angle pointed. Distribution. Weddell Sea, 604– 656 m. Description. Anterior cephalic margin sinuous, lateral cephalic lobe slightly produced; rostrum same length as head, reaching proximal part of antenna 1 peduncle article 1; eyes present, oval, 0.4 × head height. Pereonite 1 subequal in length to head (excluding rostrum), pereonite 2 approx. 0.75 x length of pereonite 1, pereonites 1 to 6 lacking mid-dorsal or dorsolateral processes; pereonite 7 posterior margin with dorsolateral carina weakly developed; pleonites 1–3 with carinae, pereonite 3 and urosomite 1 with acute mid-dorsal process. Urosomite 2 shortest, lacking mid-dorsal process, urosomite 3 with pointed posterior process. Epimeron. 1 antero- ...