Pachynus pugilator Lowry 1984
Creators: name: Lowry, J. K.
name: Stoddart, H. E.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Pakynidae
Pachynus
Pachynus pugilator

description: <i>Pachynus pugilator</i> Lowry, 1984 (Fig. 28c) <i>Pachynus pugilator</i> Lowry, 1984: 78, figs 18–20. &amp;horbar; Barnard &amp; Karaman, 1991: 510. &amp;horbar; Springthorpe &amp; Lowry, 1994: 14. &amp;horbar; Lowry &amp; Stoddart, 2003: 169. <b>Material examined.</b> 1 female, non-ovigerous with setose oostegites, 3.6 mm, MV J62416, Crib Point, Western Port, Victoria, Australia, 38°20.94'S 145°13.62’E, 15 m, fine sand and mud, Smith-McIntyre grab, 29 March 1965, stn CPBS 31N. – 1 specimen, MV J13749, Crib Point, Western Port, Victoria, Australia, 38°21.15’S 145°13.51’E, 15 m, fine sand and mud, Smith-McIntyre grab, Marine Studies Group, Fisheries and Wildlife Department, Ministry for Conservation, Victoria, 8 April 1965, CPBS stn 300. <b>Diagnostic description.</b> <i>Head</i> lateral cephalic lobe small, subacute; ventral margin curved. <i>Antenna 1</i> peduncular article 1 without posterodistal spine; <b>accessory flagellum present,</b> 2-articulate, article 1 short; flagellum with strong 1-field callynophore in female, [male not known]. <i>Mandible</i> lacinia mobilis a simple robust seta; lamina dentata absent; accessory setal row present, not on raised setose ridge; <b>molar absent</b>; <b>palp</b> article 2 slender, as long as article 3; <b>article 3 with subparallel margins</b>. <b> <i>Maxilla 1</i> outer plate with 8 setal-teeth</b> in 5/3 arrangement, setal-teeth smooth; palp well developed, 2-articulate, with apical robust setae. <i>Maxilliped</i> inner plate small; outer plate small; palp 4-articulate, article 4 small. <i>Gnathopod 1</i> chelate; ischium smaller than propodus, not swollen posteroproximally; carpus extremely compressed; propodus length about 1.5 × breadth, posterior margin well developed, palm with produced corner, corner of palm with complex robust seta; dactylus reaching to corner of palm. <i>Gnathopod 2</i> propodus, length slightly more than 2 × breadth, palm minute, obtuse. <i>Pereonite 4</i> without dorsal spines. <i>Pereonite 5</i> without dorsal spines. <i>Pereopod 4</i> merus expanded anteriorly, produced less than halfway along carpus. <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 subovate, about as long as wide with posterior margin weakly dentate. <i>Oostegites</i> from gnathopod 2 to pereopod 5. <i>Epimeron 3</i> posterior margin without projections, posteroventral corner acutely produced. <i>Uropod 3</i> biramous, inner ramus extending halfway along outer ramus but not reaching base of article 2. <i>Telson</i> longer than broad, entire. <b>Remarks.</b> The female of this species was not previously known. This specimen has a well-developed callynophore on antenna 1, scattered pale ommatidia forming an oval eye, oostegites on gnathopod 2 to pereopod 5 and gills from gnathopod 2 to pereopod 6. <b>Distribution.</b> Western Port and Bass Strait, south-eastern Australia; 15–59 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 pages 43-45, DOI: 10.11646/zootaxa.3246.1.1, http://zenodo.org/record/5249007
description: {"references": ["Lowry, J. K. (1984) Systematics of the pachynid group of lysianassoid Amphipoda (Crustacea). Records of the Australian Museum, 36 (2), 51 - 105.", "Barnard, J. L. &amp; Karaman, G. S. (1991) The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Records of the Australian Museum, Supplement, 13 (2), 419 - 866.", "Springthorpe, R. T. &amp; Lowry, J. K. (1994) Catalogue of crustacean type specimens in the Australian Museum: Malacostraca. Technical Reports of the Australian Museum, 11, 1 - 134.", "Lowry, J. K. &amp; Stoddart, H. E. (2003) Crustacea: Malacostraca: Peracarida: Amphipoda, Cumacea, Mysidacea. In P. L. Beesley &amp; W. W. K. Houston (eds), Zoological Catalogue of Australia, Vol. 19.2 B, 531 pp, Melbourne: CSIRO Publishing, Australia."]}