Leucothoe bova 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 bova

description: <i>Leucothoe bova</i> sp. nov. (Figs 5, 6) <b>Type material.</b> Holotype, male, 6.0 mm, AM P 80175, Pioneer Bay (~ 18°36'S 146°29'E), <i>Haliclona</i> sp. sponge, 5 m, K. N. Klebba, 24 May 2004 (JDT / OPH 24). Paratype, female, 5.4 mm, AM P 80176, same station data. <b>Type locality.</b> Pioneer Bay, Orpheus Island, Queensland, Australia (~ 18°36’S 146°28’E). <b>Etymology.</b> After the Latin ‘ <i>bova</i> ’, meaning ‘swelling of the legs’ and referring to the expanded gnathopod 1 basis in both males and females. <b>Description.</b> Based on holotype, male, 6.0 mm, AM P80175. <b>Head.</b> <i>Head</i> length less than pereonite 1+2, anterior margin rounded, without serrations or teeth, anterodistal margin rounded without cusp, ventral cephalic keel rounded, rostrum small to medium; eyes with 10 or more ocelli, round. <i>Antenna 1</i> 0.2 x body length; flagellum 6-articulate, peduncle width less than 2 x article 2. <i>Antenna 2</i> 0.2 x body length, shorter than antenna 1; flagellum 4-articulate. <i>Mandibles</i> lacking molars; palp 3-articulate, ratio of articles 1 <i>–</i> 3, 1.0:2.4:0.7, article 2 with 5 <i>–</i> 6 distal setae, article 3 with 2 distal setae; incisors strongly dentate; left mandible lacinia mobilis large, strongly toothed, with 9 accessory setae, right mandible lacinia mobilis small, with 9 accessory setae. <i>Upper lip</i> asymmetrically lobate, anterior margin setose. <i>Lower lip</i> inner lobes fused, strongly setose; outer lobes with moderate gape, anterior margins continually setose. <i>Maxilla 1</i> palp 2-articulate with 4 distal setae; outer plate with 8 distal spines and 5 distal setae. <i>Maxilla 2</i> inner plate with 6 robust distal setae; outer plate with 3 robust and 10 thin distal setae. <i>Maxilliped</i> inner plates fused, distal margin with v-shaped indentation, with short spines and setae; outer plate smooth, reduced, reaching much less than half of palp article 1, with 10 distal setae and 1 distal spine; palp 4- articulate, article 4 wide, slightly recurved. <b>Pereon.</b> <i>Coxae 1–4</i> relative widths 1.0:1.1:0.9:1.1. <i>Gnathopod 1</i> coxa smooth, bare, anterodistal corner produced, broadly rounded, distal margin rounded, posterior margin excavate, facial setae absent; basis widened anteroproximally and posterodistally, anterior margin with 6 spine-setae, posterior margin bare; ischium bare; carpus and propodus narrow, distally attenuated; carpus length 6.6 x width, proximal margin smooth, distal margin setose; propodus straight, palm smooth with 14 distal setae; dactylus smooth with 2 proximal setae, reaching 0.2 x propodus length. <i>Gnathopod 2</i> coxa length 0.7 x width, slightly wider than coxa 3, smooth, bare, anterodistally rounded, distal margin evenly rounded, posterior margin straight, facial setae absent; basis constricted proximally, without tubercles or serrations, anterior margin with 5 short setae, posterior margin bare; ischium with 1 posterodistal seta; carpus 0.3 x propodus length, straight, distally tapered, anterior margin serrate; propodus posterior margin without spines/serrations, with 2 mediofacial setal rows, primary mediofacial setal row clustered below midline, reaching 0.6 x propodus length, secondary mediofacial setal row with cluster of 8 setae, cluster of 21 submarginal setae, palm convex with 4 minor projections; dactylus curved, proximal margin smooth, anterior margin distally subacute, reaching 0.6 x propodus length. <i>Pereopod 3</i> coxa length subequal to width; anterodistal corner over-riding distal face of coxa 2 and extending below it, smooth, bare, anterior margin produced anterodistally, distal margin straight, posterior margin straight, facial setae absent. <i>Pereopod 4</i> coxa smooth, bare, anterior margin evenly rounded, distal margin evenly rounded, posterior margin straight, facial setae absent. <i>Pereopods 5–7</i> coxa facial setae absent; basis width length ratios 1:1.3, 1:1.4, 1:1.4. <i>Pereopods 5–</i> 6 basis posterior margins smooth, bare. <i>Pereopod 7</i> posterior margin smooth, setose. <b>Pleon.</b> <i>Epimera 1+3</i> bare. <i>Epimeron 2</i> with 4 ventral setae. <i>Epimeron 3</i> posteroventral margin broadly rounded. <i>Uropods 1–3</i> relative lengths 1.0:0.7:0.7. <i>Uropod 1</i> peduncle 1.3 x inner ramus length; outer and inner ramus subequal in length. <i>Uropod 2</i> peduncle subequal in length with inner ramus; inner ramus with robust setae, outer ramus with 1 robust seta. <i>Uropod 3</i> peduncle 1.6 x inner ramus length. <i>Uropods 2–3</i> outer ramus subequal to inner ramus length. <i>Uropod 1+3</i> inner and outer ramus lined with short marginal setae, with robust setae. <i>Telson</i> 1.8 x longer than wide, apex tridentate. <b>Female</b> (sexually dimorphic characters). Based on paratype, female, 5.4 mm, AM P 80176. <i>Gnathopod 1</i> basis widened proximally, posterior margin with 13 setae; carpus with shorter distal setae. <i>Gnathopod 2</i> propodus mediofacial and submarginal setal rows with fewer setae, palm with less prominent projections; carpus distal margin undulating; dactylus anterior margin distally obtuse. <b>Habitat.</b> In a species of the encrusting sponge <i>Haliclona</i> Grant, 1836, on patch reefs. <b>Remarks.</b> <i>Leucothoe bova</i> <b>sp. nov.</b> is distinct in its short antennae, large eyes, widened mandibular palp article 2, expanded gnathopod 1 basis, long distal setae on gnathopod 1 carpus and extensive submarginal setae on gnathopod 2 propodus. The posterior setae on gnathopod 1 basis is shared with females of <i>Leucothoe saron</i> Thomas &amp; Klebba, 2007, <i>Leucothoe ubouhu</i> Thomas &amp; Klebba, 2007 and <i>Leucothoe undulata</i> <b>sp. nov.</b> The distal setae on gnathopod 1 carpus is similar to <i>Leucothoe flammosa</i> Thomas &amp; Klebba, 2007, which inhabits bivalve molluscs. <i>Leucothoe bova</i> is similar to <i>L</i>. ashleyae <i>,</i> females of <i>L</i>. assimilis, <i>Leucothoella banwarthii</i> Schellenberg, 1928, <i>Leucothoe barana</i> Thomas &amp; Klebba, 2007, <i>Leucothoe kensleyi</i> Thomas &amp; Klebba, 2006, <i>L</i>. ubouhu <i>, L laevipalma</i> <b>sp. nov.</b>, <i>L</i>. <i>makrommatos</i> <b>sp. nov.</b>, <i>L</i>. <i>odontiskos</i> <b>sp. nov</b>. and <i>L</i>. <i>undulata</i> in its gnathopod 2 propodus secondary mediofacial setal row. <b>Distribution.</b> <i>Australia</i>. Queensland: Orpheus 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 501-505, DOI: 10.11646/zootaxa.2260.1.29, http://zenodo.org/record/5323471
description: {"references": ["Grant, R. E. (1836) Animal Kingdom. In: R. B. Todd (Ed) The cyclopaedia of anatomy and physiology, vol. 1. Sherwood, Gilbert, &amp; Piper, London, pp. 107 - 118.", "Thomas, J. D. &amp; Klebba, K. N. (2007) New species and host associations of commensal leucothoid amphipods from coral reefs in Florida and Belize (Crustacea: Amphipoda). Zootaxa, 1494, 1 - 44.", "Schellenberg, A. (1928) Report on the Amphipoda [in Zoological Results of the Cambridge Expedition to the Suez Canal, 1924]. Transactions of the Zoological Society of London, 22 (5), 633 - 692.", "Thomas, J. D. &amp; Klebba, K. N. (2006) Studies of commensal leucothoid amphipods: Two new sponge-inhabiting species from South Florida and the Western Caribbean. Journal of Crustacean Biology, 26, 13 - 22."]}