Figorella formosa 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 formosa

description: <i>Figorella formosa</i> sp. nov. (Figs 16–18) <b>Type material.</b> HOLOTYPE, female, 4.6 mm, MV J62417, 44 km east of Nowra, New South Wales, Australia, Tasman Sea, 34°55.79'S 151°08.06'E, 429 m, muddy coarse shell, WHOI epibenthic sled, 22 October 1988, G.C.B. Poore <i>et al.</i>, RV <i>Franklin</i>, stn SLOPE 56. PARATYPES: 1 female, 3.5 mm, MV J62418 and 1 female, 4.5 mm, AM P.46669, same data as Holotype; 1 female, MV J17532, 33 km south-south-west of Marlo, Bass Strait, Victoria, Australia, 38°04'S 148°25.7'E, 28 m, sand and shell, Smith-McIntyre grab, 12 August 1989, G. Parry, stn MSL-EG 16; 2 ovigerous females, 1 non-ovigerous female and 1 juvenile, MV J17533, 14 km south-west of Marlo, Bass Strait, Victoria, Australia, 37°54'S 148°25.7'E, 26 m, sand and shell, Smith-McIntyre grab, 12 August 1989, G. Parry, stn MSL-EG 18. <b>Etymology.</b> The specific name <i>formosa</i> is taken from the Latin word for "beautiful." <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 attached slightly distally; palp article 2 broad, longer than article 3; article 3 with subparallel margins. <b> <i>Maxilla 1</i> outer plate with 9 setal-teeth</b> in 5/4 arrangement, outer row setal-teeth with medial cusps; <b>palp</b> well developed, <b>2-articulate</b>, with 2 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, <b>posterodistal corner of palm attenuated</b>, corner of palm with simple robust seta; dactylus reaching to corner of palm. <i>Gnathopod 2</i> palm minute, transverse. <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 smooth. <i>Oostegites</i> from gnathopod 2 to pereopod 5. <b> <i>Epimeron 3</i> posterior margin without projections, posteroventral corner broadly rounded</b> . <i>Uropod 3</i> biramous, inner ramus extending less than halfway along outer ramus. <b> <i>Telson</i> much shorter than broad,</b> entire. <b>Remarks.</b> <i>Figorella formosa</i> is the only species in the genus which occurs in shallow water. The only other species of <i>Figorella</i> with a 5/4 setal-tooth arrangement is <i>F. corindon</i>. These taxa differ in the length of the second article of the mandibular palp (shorter than article 3 in <i>F. corindon</i>, longer in <i>F. formosa</i>); in the length of the dactylus of gnathopod 2 (as long as the palm in <i>F.formosa</i>, over-reaching the palm in <i>F. corindon</i>); in the palm development (minute in <i>F. formosa</i>, large in <i>F. corindon</i>); pereopod 6 posteroventral lobe of basis (weakly produced in <i>F. formosa</i>, produced beyond the ischium in <i>F. corindon</i>); pereopod 6 merus posteroproximal shoulder (absent in <i>F. formosa</i>, present in <i>F. corindon</i>). <b>Distribution.</b> South-eastern Australia; 26–429 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 25-26, DOI: 10.11646/zootaxa.3246.1.1, http://zenodo.org/record/5249007