Ekelofia eltanin Lowry &amp; Stoddart 2012, sp. nov.
Creators: name: Lowry, J. K.
name: Stoddart, H. E.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Pakynidae
Ekelofia
Ekelofia eltanin

description: <i>Ekelofia eltanin</i> sp. nov. (Figs 11–13) <i>Ekelofia eltanin</i> De Broyer <i>et al</i>., 2007: 157 (<i>nomen nudum</i>). <b>Type material.</b> HOLOTYPE, male, 6.4 mm, USNM 1157176, Ross Sea, Southern Ocean, 76°02.1'S 179°57.0'W to 76°02.3'S 179°52.1'W, 347–358 m, Menzies trawl, 9 February 1972, USARP <i>Eltanin</i> cruise 51, stn 5762. PARATYPE, female, 11.0 mm, MV J38223, Fram Bank, north-west of Cape Darnley, Antarctica, 67°31.72'S 69°02.13'E to 67°31.93'S 69°02.02'E, 105–114 m, epibenthic sled, 13 February 1993, M. O'Loughlin, RSV <i>Aurora Australis</i>, stn AA93-130. <b>Diagnostic description.</b> <i>Head</i> lateral cephalic lobe large, broadly rounded; ventral margin curved. <i>Antenna 1</i> peduncular article 1 with posterodistal spine; accessory flagellum 2-articulate, article 1 short; flagellum without callynophore in female, with strong 1-field callynophore in male. <b> <i>Mandible</i> lacinia mobilis a simple robust seta</b> ; lamina dentata absent; accessory setal row absent; molar absent; palp attached distally; palp article 2 broad, as long as article 3; article 3 not distally tapered, with anterior margin convex. <b> <i>Maxilla 1</i> outer plate with 8 setal-teeth</b> in 5/3 arrangement, setal-teeth smooth; palp absent. <b> <i>Maxilliped</i> inner plate small</b> ; outer plate large; palp 4-articulate, article 4 large. <i>Gnathopod 1</i> chelate; ischium smaller than propodus, not swollen posteroproximally; carpus extremely compressed; <b>propodus</b> length about 1.6 × breadth, <b>with a vertical row of setae on medial face</b>, posterior margin well developed, palm with produced corner, corner of palm with simple robust seta; dactylus reaching to corner of palm. <i>Gnathopod 2</i> palm minute, obtuse. <i>Pereonite 4</i> without dorsal spines. <i>Pereonite 5</i> without dorsal spines. <i>Pereopod 5</i> merus with posteroproximal shoulder. <i>Pereopod 6</i> basis with posteroventral lobe produced beyond ischium; merus as broad as long, with posteroproximal shoulder. <i>Pereopod 7</i> basis subrectangular with posterior margin weakly dentate. <i>Epimeron 3</i> posterior margin without projections, posteroventral corner broadly rounded. <i>Uropod 3</i> biramous, inner ramus extending beyond article 1 of outer ramus. <b> <i>Telson</i> as long as broad</b> , entire. <b>Etymology.</b> Named for the RV <i>Eltanin</i>, which made many fine collections of lysianassoid amphipods from the waters surrounding Antarctica; used as a noun in apposition. <b>Remarks.</b> <i>Ekelofia eltanin</i> differs from <i>E. oculata</i> in: the number of setal-teeth on maxilla 1 outer plate; the presence of small inner plates on the maxilliped; the vertical row of medial setae on gnathopod 1 propodus; the more strongly defined posteroproximal shoulder on the merus of pereopods 5 and 6; and the relatively longer telson. <b>Distribution.</b> Ross Sea and Fram Bank, Antarctica; 105–358 m depth.
description: Published as part of <i>Lowry, J. K. &amp; Stoddart, H. E., 2012, The Pachynidae fam. nov. (Crustacea: Amphipoda: Lysianassoidea) 3246, pp. 1-69 in Zootaxa 3246 (1)</i> on page 19, DOI: 10.11646/zootaxa.3246.1.1, http://zenodo.org/record/5249007
description: {"references": ["De Broyer, C., Lowry, J. K., Jazdzewski, K. &amp; Robert, H. (2007) Catalogue of the Gammaridean and Corophiidean Amphipoda (Crustacea) of the Southern Ocean with distribution and ecological data. In: C. De Broyer (ed.) Census of Antarctic Marine Life: Synopsis of the Amphipoda of the Southern Ocean. Volume 1. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Biologie, 77, Supplement 1 (1), 1 - 325."]}