Nagada uwedoae Lowry &amp; Stoddart 1995
Creators: name: Lowry, J. K.
name: Stoddart, H. E.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Uristidae
Nagada
Nagada uwedoae

description: <i>Nagada uwedoae</i> Lowry &amp; Stoddart, 1995 (Figs 5, 6) <i>Nagada uwedoae</i> Lowry &amp; Stoddart, 1995: 154, figs 34–36. –– Lowry &amp; Stoddart, 2003: 282 (catalogue). <b>Type locality</b>. Outer Barrier between Dam Awan (Rasch Passage) and Wongad Island, Astrolabe Bay, Papua New Guinea (5°08.59’S 145°49.65’E), 290 m depth. <b>Material examined.</b> 1 ovigerous female, AM P69472 (JML 81/26-11-4); 48 specimens AM P69474 (QLD 630); 3 specimens AM P69475 (QLD 631); 1 specimen AM P69476 (QLD 671); 22 specimens AM P69477 (QLD 673); 16 specimens AM P69478 (QLD 748); many specimens AM P69480 and 1 female, AM P78943 (QLD 766); many specimens, AM P69479 (QLD 767); many specimens, AM P69481 (QLD 775); 5 specimens, AM P50744 (QLD 952); 11 specimens, AM P51116 and 2 specimens, AM P52655 (QLD 953); 127 specimens, AM P51120 and 8 specimens, AM P58342 (QLD 954); 285 specimens, AM P50746 (QLD 955/ SEAS); 28 specimens, AM P57616 (QLD 1055); 11 specimens, AM P50754 (QLD 1073); 16 specimens, AM P51123 (QLD 1075); 105 specimens, AM P50757 (QLD 1076); 154 specimens, AM P51121 (QLD 1078); 8 specimens, AM P50760 (QLD 1093); 45 specimens, AM P50762 (QLD 1096). <b>Description.</b> Based on ovigerous female (2 eggs), 2.5 mm, AM P69472 and female, 3.2 mm, AM P78943. <b>Head and body.</b> <i>Body</i> without dorsal carina. <i>Head</i> lateral cephalic lobes rounded, with apically rounded margins; eyes ovate. <i>Antenna 1</i> subequal to antenna 2; peduncle article 1 not produced, peduncular article 1 without anterodistal lobe, without posterodistal spine; article 2 short, without anterodistal lobe or posterodistal spine; article 3 short; flagellum with weak 2-field callynophore, robust setae absent on proximal articles, calceoli absent; accessory flagellum with 3 articles. <i>Antenna 2</i> less than 40% of body length; peduncle without brush setae, calceoli absent. <i>Epistome</i> / <i>upper lip</i> fused, weakly sinuous. <i>Mandible</i> molar a setose tongue; palp attached midway, article 3 without A3-setae. <i>Maxilla 1</i> outer plate with setal-teeth in 7/4 crown arrangement (see Remarks); setal-tooth 7, left and right symmetrical, cuspidate distally; palp distal margin with apical robust setae and serrations. <i>Maxilliped</i> inner plates poorly developed, not reaching half the length of the outer plate; outer plates without apical robust setae; palp 4-articulate, article 4 well developed. <b>Pereon.</b> <i>Gnathopod 1</i> simple; coxa large, about as long as coxa 2, subrectangular with straight anterior margin; basis without setae along anterior margin; ischium long (length 2.4 x breadth); carpus long (length 2.2 x breadth), distinctly longer than propodus, without posterior lobe; propodus margins tapering; dactylus complex, with 2 large subterminal spines and row of short spines along posterior margin. <i>Gnathopod 2</i> chelate; carpus longer than (1.7 x) propodus; palm obtuse; dactylus minute. <i>Pereopod 4</i> coxa with well developed posteroventral lobe. <i>Pereopod 5</i> coxa equilobate; basis distinctly longer than broad. <i>Pereopod 7</i> basis posterodistally produced. <b>Pleon.</b> <i>Epimeron 3</i> posterodistal corner rounded. <i>Urosomite 1</i> with anterodorsal notch and slightly rounded boss. <i>Uropod 1</i> rami subequal. <i>Uropod 2</i> rami subequal, inner ramus with slight marginal constriction. <i>Uropod 3</i> without plumose setae on rami; outer ramus 2-articulate, article 2 long, inner ramus extending beyond article 1 of outer ramus. <i>Telson</i> subequal in length and breadth, entire, without dorsal robust setae, with 2 apical robust setae. <b>Male</b> (sexually dimorphic characters). Based on paratype male, 2.1 mm, AM P41607. <i>Antennae 1–2</i> with calceoli. <i>Antenna 1</i> flagellum with strong 2-field callynophore. <b>Habitat.</b> Scavenger living on muddy bottoms from the littoral to the continental slope, in 15 to 500 m depth. <b>Remarks.</b> The illustrated specimen has the uropod 3 inner ramus slightly shorter than the outer ramus; in the holotype the rami are subequal. We have seen some variation in the relative lengths of these rami but the inner ramus is always longer than article 1 of the outer ramus and always shorter than the entire outer ramus. The presence of 12 setal-teeth on the maxilla 1 outer plate of the illustrated specimen seems to be an individual aberration. Other Australian specimens have the normal 11 setal-teeth in a 7/4 crown arrangement. <i>Nagada uwedoae</i> occurs from northern Papua New Guinea along the east coast of Australia from the northern Great Barrier Reef to Tasmania (Lowry &amp; Stoddart 1995, 2003). It can be separated from other lysianassoid species on the GBR by the combination of head and body without scattered setae, gnathopod 1 simple and the posteroventral corner of the third epimeron broadly rounded. <b>Distribution.</b> <i>Australia</i>. Queensland: Ashmore Reef, Boot Reef, Great Detached Reef, Portlock Reef (current study); Lizard Island (current study). New South Wales (Lowry &amp; Stoddart 2003). Tasmania (Lowry &amp; Stoddart 2003). <i>Papua New Guinea</i>. Astrolabe Bay (Lowry &amp; Stoddart 1995).
description: Published as part of <i>Lowry, J. K. &amp; Stoddart, H. E., 2009, Uristidae *, pp. 908-918 in Zootaxa 2260 (1)</i> on pages 915-917, DOI: 10.11646/zootaxa.2260.1.53, http://zenodo.org/record/5306241
description: {"references": ["Lowry, J. K. &amp; Stoddart, H. E. (1995) The Amphipoda of Madang Lagoon: Lysianassidae, Opisidae, Uristidae, Wandinidae and Stegocephalidae. In J. K. Lowry (ed.), The Amphipoda (Crustacea) of Madang lagoon, Papua New Guinea, Part 1. Records of the Australian Museum Supplement, 22, 97 - 174.", "Lowry, J. K. &amp; Stoddart, H. E. (2003) Crustacea: Malacostraca: Peracarida: Amphipoda, Cumacea, Mysidacea. In Beesley, P. L. &amp; Houston, W. W. K. (Eds), Zoological Catalogue of Australia, Vol. 19.2 B, 531 pp, Melbourne: CSIRO Publishing, Australia."]}