Leucothoe hipposideros White &amp; Thomas, 2009, sp. nov.
Creators: name: White, Kristine N.
name: Thomas, James Darwin
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Ericales
Ericaceae
Leucothoe
Leucothoe hipposideros

description: <i>Leucothoe hipposideros</i> sp. nov. (Figs 11, 12) <b>Type material.</b> Holotype, male, 3.2 mm, AM P 71233, Horseshoe Reef, Lizard Island (14°41.21'S 145°26.49'E), coral rubble, large coral bommies surrounded by sand and rubble, 11 m, C. Serejo, 2 March 2005 (QLD 1768). Paratype, male, 2.5 mm, AM P 79805, Picnic Beach, Palfrey Island, Lizard Island (14°41.70'S 145°26.92'E), subtidal, patch reef, rubble with sand bottom, 2 m, S. E. LeCroy, 3 July 2001 (QLD SEL /LZI-2-1). Paratype, female, 2.0 mm, AM P 79806, same station data as male paratype. <b>Additional material examined.</b> 1 male, AM P 79807 (SEL /LZI-2-3). <b>Type locality.</b> Horseshoe Reef, Lizard Island, Queensland, Australia (14°41.21'S 145°26.49'E). <b>Etymology.</b> After the Greek ‘ <i>hipposideros</i> ’, meaning ‘horseshoe’ and referring to the type locality. <b>Description.</b> Based on holotype, male, 3.2 mm, AM P71233. <b>Head.</b> <i>Head</i> length less than pereonite 1+2, anterior margin rounded, anterodistal margin rounded without cusp, ventral cephalic keel with small projection, rostrum small to medium; eyes with 10 or more ocelli, round. <i>Antenna 1</i> 0.3 x body length; flagellum 3-articulate, peduncle width less than 2 x article 2. <i>Antenna 2</i> 0.2 x body length, shorter than antenna 1; flagellum 3-articulate. <i>Mandibles</i> lacking molars, palp 3-articulate, ratio of articles 1 <i>–</i> 3, 1.0:2.2:1.4, article 2 with 2 distal setae, article 3 with 2 distal setae, incisors strongly dentate; left mandible lacinia mobilis large, strongly toothed, with 8 accessory setae; right mandible lacinia mobilis small, with 8 accessory setae. <i>Upper lip</i> asymmetrically lobate, anterior margin setose. <i>Lower lip</i> inner lobes fused, bare; outer lobes with moderate gape, anterior margins weakly setose. <i>Maxilla 1</i> palp 1- articulate with 4 distal setae; outer plate with 5 distal spines and 2 distal setae. <i>Maxilla 2</i> inner plate with 5 distal setae; outer plate with 2 robust setae and 10 <i>–</i> 11 thin distal setae. <i>Maxilliped</i> inner plates fused, distal margin with v-shaped indentation, with short spines and long setae; outer plate serrate, reduced, reaching less than half of palp article 1, with 6 distal setae and 1 distal spine; palp 4-articulate, article 4 slender, very slightly curved. <b>Pereon.</b> <i>Coxae 1–4</i> relative widths 1.0:1.1:1.1:1.5. <i>Gnathopod 1</i> coxa serrate, setose, anterodistal corner produced, broadly rounded, distal margin straight, posterodistal margin rounded, facial setae absent; basis slightly constricted proximally, anterior and posterior margins bare; ischium bare; carpus and propodus distally tapered; carpus length 7.5 x width, proximal margin with denticles, distal margin bare; propodus straight, palm dentate with 7 <i>–</i> 9 distal setae and 7 <i>–</i> 9 large triangular teeth; dactylus with medial notch, reaching 0.1 x propodus length. <i>Gnathopod 2</i> coxa length 0.9 x width, subequal to coxa 3, smooth, bare, anterodistally rounded, distal margin evenly rounded, posterior margin straight, facial setae absent; basis slightly widened distally, without tubercles or serrations, anterior margin with 1–5 setae, posterior margin with 1–4 setae; ischium with 1 posterior and 1 distal seta; carpus 0.3 x propodus length, recurved, distally tapered, anterior margin serrate; propodus with 1 mediofacial setal row above midline, reaching 0.6 x propodus length, 2 rows of submarginal setae, palm convex with 6 minor projections, dactylus recurved, proximal margin smooth, anterior margin distally subacute, reaching 0.8 x propodus length. <i>Pereopod 3</i> coxa length 1.4 x width, anterodistal corner over-riding distal face of coxa 2 and extending below it, smooth, bare, anterior margin subquadrate, distal margin straight, posterior margin straight, facial setae absent. <i>Pereopod 4</i> coxa smooth, bare, anterior margin rounded, distal margin evenly rounded, posterior margin weakly excavate, facial setae absent. <i>Pereopods 5–7</i> coxa facial setae absent; basis width length ratios 1:1.3, 1:1.4, 1:1.3, posterior margins serrate, setose. <b>Pleon.</b> <i>Epimera 1+3</i> bare. <i>Epimeron 2</i> with 2 <i>–</i> 3 ventral setae. <i>Epimeron 3</i> posteroventral margin narrowly rounded. <i>Uropods 1–3</i> relative lengths 1.0:0.8:1.2. <i>Uropod 1</i> peduncle 0.8 x inner ramus length. <i>Uropod 2</i> peduncle and outer ramus 0.6 x inner ramus length; inner ramus bare, outer ramus with 1 robust seta. <i>Uropod 3</i> peduncle and inner ramus subequal in length. <i>Uropod 1+3</i> outer and inner ramus subequal in length; inner and outer ramus lined with short marginal setae, with robust setae. <i>Telson</i> 2.2 x longer than wide, apex tridentate. <b>Female</b> (sexually dimorphic characters). Based on paratype, female, 2.0 mm, AM P79806. <i>Gnathopod 1</i> propodus palm with 6 teeth. <i>Gnathopod 2</i> propodus palm with less prominent projections, fewer mediofacial setae; carpus anterior margin smooth. <b>Habitat.</b> In coral rubble surrounding large coral bommies. <b>Remarks.</b> <i>Leucothoe hipposideros</i> <b>sp. nov.</b> shares its uni-articulate maxilla 1 palp with <i>Leucothoe laevipalma</i> <b>sp. nov.</b>, <i>Leucothoe odontiskos</i> <b>sp. nov.</b>, <i>Leucothoe pollexa</i> <b>sp. nov.</b>, <i>Leucothoe sparsa</i> <b>sp. nov.</b>, <i>L</i>. <i>thula</i> <b>sp. nov.</b> and <i>L</i>. <i>undulata</i> <b>sp. nov</b>. This character has not been found in any described <i>Leucothoe</i> to date, although an “indistinct suture” in the maxilla 1 palp has been reported in <i>L</i>. assimilis, <i>L</i>. <i>basilobata</i>, <i>L</i>. <i>cheiriserra</i> and <i>L</i>. <i>urospinosa</i>. <i>Leucothoe hipposideros</i> shares its serrate maxilliped outer plate with <i>L</i>. basilobata, <i>L</i>. <i>cheiriserra</i>., <i>L</i>. <i>ctenochasma</i>, <i>Leucothoe laurensi</i> Thomas, 1995, <i>Leucothoe orkneyi</i> Holman &amp; Watling, 1983, <i>Leucothoe squalidens</i> Ledoyer, 1984 a, <i>L</i>. laevipalma, <i>L</i>. <i>odontiskos</i>, <i>L</i>. <i>serrata</i> <b>sp. nov.</b> and <i>L</i>. <i>undulata</i>. The gnathopod 1 propodus shape and triangular teeth are similar to <i>L</i>. <i>cheiriserra</i> and <i>Leucothoe gavialis</i> Myers, 1985 c. <i>Leucothoe hipposideros</i>. resembles <i>L. cheiriserra</i> in its serrate posterior margins on the basis of pereopods 5 <i>–</i> 7, but differs in its thin gnathopod 1 carpus and propodus, dentate gnathopod 1 carpus, gnathopod 1 dactylus notch, long gnathopod 2 mediofacial setal row, square coxa 3, longer uropod 1 and tridentate telson. <b>Distribution.</b> <i>Australia</i>. Queensland: Lizard Island (current study).
description: Published as part of <i>White, Kristine N. &amp; Thomas, James Darwin, 2009, Leucothoidae *, pp. 494-555 in Zootaxa 2260 (1)</i> on pages 511-515, DOI: 10.11646/zootaxa.2260.1.29, http://zenodo.org/record/5323471
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