Figorella angulosa 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
Figorella
Figorella angulosa

description: <i>Figorella angulosa</i> sp. nov. (Figs 14, 15) <b>Type material.</b> HOLOTYPE, female, ovigerous (2 eggs), 3.2 mm, AM P.46668, east of Merimbula, New South Wales, Australia, 36°56.2'S 150°23.00'E to 36°57.00'S 150°22.5'E, 1600 m, epibenthic sled, 12 December 1986, R. T. Springthorpe, RV <i>Franklin</i>, stn FR1086-08. PARATYPES: 1 female, ovigerous (2 eggs), MV J62421, south of Point Hicks, Victoria, Australia, 38°19.60'S 149°24.30'E to 38°19.00'S 149°27.30'E, 930–951 m, rock, rubble, clay, sand and biogenic sediment, epibenthic sled, 23 July 1986, M.F. Gomon <i>et al.</i>, RV <i>Franklin</i>, stn SLOPE 33; 2 juveniles, MV J62420, south of Point Hicks, Victoria, Australia, 38°21.90'S 149°20.00'E to 38°21.40'S 149°20.90'E, 1000 m, epibenthic sled, 23 July 1986, G.C.B. Poore <i>et al.</i>, RV <i>Franklin</i>, stn SLOPE 32. <b>Etymology.</b> The specific name <i>angulosa</i> refers to the shape of epimeron 3. <b>Diagnostic description.</b> <i>Head</i> lateral cephalic lobe large, narrowly rounded; ventral margin curved. <i>Antenna 1</i> peduncular article 1 without posterodistal spine; accessory flagellum 2-articulate, article 1 short; flagellum without 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; molar absent; palp article 2 broad, longer than article 3; article 3 with both margins slightly convex. <b> <i>Maxilla 1</i> outer plate with 9 setal-teeth</b> in 6/3 arrangement, some outer row setal-teeth with medial cusps; <b>palp</b> well developed, <b>1-articulate</b>, with apical slender setae. <i>Maxilliped</i> inner plate small; 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 1.8 × breadth, posterior margin well developed, palm with produced corner, <b>posterodistal corner of palm not attenuated</b>, 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 without posteroproximal shoulder. <i>Pereopod 6</i> basis with posteroventral lobe weakly produced; <b>merus</b> longer than broad, <b>without posteroproximal shoulder</b>. <i>Pereopod 7</i> basis subovate with posterior margin weakly dentate. <i>Oostegites</i> from gnathopod 2 to pereopod 5. <b> <i>Epimeron 3</i> posterior margin with a strong, rounded projection, posteroventral corner subquadrate</b> . <i>Uropod 3</i> biramous, <b>inner ramus extending less than halfway along outer ramus</b>. <b> <i>Telson</i> shorter than broad</b> , entire. <b>Remarks.</b> <i>Figorella angulosa</i> and <i>F. franklin</i> both have a 1-articulate palp on maxilla 1 and the corner of gnathopod 1 palm not attenuated. They differ in that <i>F. angulosa</i> has 9 setal-teeth on the outer plate of maxilla 1 and uropod 3 inner ramus slightly shorter than article 1 of the outer ramus, whereas <i>F. franklin</i> has 10 setal-teeth on the outer plate of maxilla 1 and uropod 3 inner ramus longer than article 1 of the outer ramus. <b>Distribution.</b> South-eastern Australia, Tasman Sea; 930–1000 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 22-23, DOI: 10.11646/zootaxa.3246.1.1, http://zenodo.org/record/5249007