Graciliphotis ruthae Myers 2009, sp. nov.
Creators: name: Myers, Alan A.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Photidae
Graciliphotis
Graciliphotis ruthae

description: <i>Graciliphotis ruthae</i> sp. nov. (Figs 3, 4) <b>Type material.</b> Holotype, male, 2.0 mm, AM P75461, Yonge Reef, Half Mile Opening (14°34’19”S 145°36’51”E), <i>Halimeda opuntia</i> (green coralline alga), 10 m, I. Takeuchi, R. T. Springthorpe &amp; O. Coleman, 5 March 2005 (QLD 1829). Paratypes: 3 females, AM P75462, same data as holotype. <b>Type locality.</b> Yonge Reef, Lizard Island, Queensland, Australia (14°34’19”S 145°36’51”E). <b>Etymology.</b> Named for Dr Ruth M. O’Riordan, in recognition of her work on the ecology of chthamalid barnacles. <b>Description.</b> Based on holotype, male, 2.0 mm, AM P75461 and paratype female 2.0 mm, AM P75462. <b>Head</b>. <i>Head</i> anteroventral margin strongly recessed, extending behind posterior margin of eye. <i>Eye</i> round, large, more than one quarter length of head length, situated entirely within the lateral lobe of the head. <i>Mandible palp</i> article 3 distinctly shorter than article 2, spatulate, widest subdistally. <i>Antenna 1</i> peduncular article 1 shorter than article 3; flagellum with 6 articles; accessory flagellum vestigial. <i>Antenna 2</i> longer than half body length, flagellum distinctly longer than peduncular article 5 with 8 articles. <b>Pereon.</b> <i>Coxae 1-5</i> as broad or broader than long, sparsely fringed with setae; coxa 1 not produced forward. <i>Gnathopod 1</i> carpus longer than propodus; propodus 1.5 x as long as wide, posterodistal margin evenly rounded. <i>Gnathopod 2 basis</i> anterior margin with a few short setae; carpus without distinct free posterior expansion; propodus only a littler longer than carpus, posterodistal margin with robust seta, palm evenly convex, with no excavations; dactylus long, distinctly longer than half length of propodus. <i>Pereopod 3</i> merus with a few long setae on anterior margin; propodus less than 4 x as long as broad. <i>Pereopod 5</i> basis extremely expanded, as long as broad; with few setae on anterior margin; dactylus with accessory spine on anterior margin. <i>Pereopod 6</i> dactylus with vestigial accessory spine on anterior margin. <i>Pereopod 7</i> dactylus lacking accessory spine on anterior margin. <b>Pleon.</b> <i>Epimeron 3</i> posterodistal margin rounded. <i>Uropod 1</i> peduncle without distoventral spine; rami subequal in length. <i>Uropod 2</i> peduncle without distoventral spine; rami subequal in length. <i>Uropod 3</i> peduncle short and stout, distinctly longer than the outer ramus; inner ramus vestigial; outer ramus with terminal robust setae. <i>Telson</i> with terminal robust seta on each side. <b>Female.</b> Not sexually dimorphic. <b>Habitat.</b> Among <i>Halimeda opuntia.</i> <b>Remarks.</b> See remarks section under genus. <b>Distribution</b>. <i>Australia</i>. Queensland: Yonge reef, Lizard Island (current study).
description: Published as part of <i>Myers, Alan A., 2009, Photidae *, pp. 771-799 in Zootaxa 2260 (1)</i> on pages 774-777, DOI: 10.11646/zootaxa.2260.1.43, http://zenodo.org/record/5306907