190 lines
17 KiB
XML
190 lines
17 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.163.2003" ID-GBIF-Dataset="daef9891-760b-4f45-a77a-53459f6a2162" ID-PMC="PMC3253665" ID-Pensoft-Pub="1313-2970-163-13" ID-PubMed="22303128" ModsDocAuthor="" ModsDocDate="2012" ModsDocID="1313-2970-163-13" ModsDocOrigin="ZooKeys 163" ModsDocTitle="Commensal Leucothoidae (Crustacea, Amphipoda) of the Ryukyu Archipelago, Japan. Part I: ascidian-dwellers" checkinTime="1451249396492" checkinUser="pensoft" docAuthor="White, Kristine N. & Reimer, James Davis" docDate="2012" docId="91D2E40D76B240FB328A055113F37171" docLanguage="en" docName="ZooKeys 163: 13-55" docOrigin="ZooKeys 163" docSource="http://dx.doi.org/10.3897/zookeys.163.2003" docTitle="Leucothoe elegans White & Reimer, 2012, sp. n." docType="treatment" docVersion="4" lastPageNumber="24" masterDocId="FFFDB4372D483E07FFC5FF96FFDA8A34" masterDocTitle="Commensal Leucothoidae (Crustacea, Amphipoda) of the Ryukyu Archipelago, Japan. Part I: ascidian-dwellers" masterLastPageNumber="55" masterPageNumber="13" pageNumber="20" updateTime="1668153144330" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Commensal Leucothoidae (Crustacea, Amphipoda) of the Ryukyu Archipelago, Japan. Part I: ascidian-dwellers</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>White, Kristine N.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Reimer, James Davis</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2012</mods:date>
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<mods:detail type="volume">
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<mods:number>163</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>13</mods:start>
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<mods:end>55</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.163.2003</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.163.2003</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-163-13</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152032981" LSID="urn:lsid:zoobank.org:act:9113E46D-8259-463F-BBF9-9BBB2FAA5ED4" httpUri="http://treatment.plazi.org/id/91D2E40D76B240FB328A055113F37171" lastPageId="11" lastPageNumber="24" pageId="7" pageNumber="20">
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<subSubSection pageId="7" pageNumber="20" type="nomenclature">
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<paragraph pageId="7" pageNumber="20">
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<taxonomicName LSID="urn:lsid:zoobank.org:act:9113E46D-8259-463F-BBF9-9BBB2FAA5ED4" class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe elegans" order="Amphipoda" pageId="7" pageNumber="20" phylum="Arthropoda" rank="species" species="elegans">Leucothoe elegans</taxonomicName>
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<taxonomicNameLabel pageId="7" pageNumber="20">sp. n.</taxonomicNameLabel>
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Figs 56
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="20" type="type material">
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<paragraph pageId="7" pageNumber="20">Type material.</paragraph>
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<paragraph pageId="7" pageNumber="20">
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Holotype male, 4.5 mm, RUMF-ZC-1658, Isso, Yakushima Island patch reef (
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="30.458055">30°27'29"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="15" value="130.48944">130°29'22"E</geoCoordinate>
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), in grey-purple hard sponge, 10-12 m, K.N. White, col., 27 May 2011 (KNWYaku3A). Paratype female, 5.7 mm, RUMF-ZC-1659, same station data as holotype.
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</paragraph>
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<paragraph pageId="7" pageNumber="20">
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Type locality. Isso, Yakushima Island, Japan (
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="30.458055">30°27'29"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="15" value="130.48944">130°29'22"E</geoCoordinate>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="20" type="additional material examined">
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<paragraph pageId="7" pageNumber="20">Additional Material Examined.</paragraph>
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<paragraph pageId="7" pageNumber="20">8 specimens, NSMT-Cr21815, KNWYaku3B; 4 specimens, RUMF-ZC-1660, KNWYaku3L; 3 specimens, RUMF-ZC-1661, KNWYaku5C; 3 specimens, RUMF-ZC-1662, KNWOkinawa54A; 16 specimens, NSMT- Cr 21816, KNWOkinawa54I; 2 specimens, RUMF-ZC-1699, KNWOkinawa54I.</paragraph>
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<paragraph pageId="7" pageNumber="20">Diagnosis (male). Mandibular palp article 2 robust, with 4 setae. Right mandible lacinia mobilis distal margin with 3 rows of dentition. Maxilliped outer plate inner margin tuberculate. Eye large, covering most head. Gnathopod 1 basis proximally widened; carpus elongate. Gnathopod 2 propodus with one submarginal row of robust setae; dactylus proximal margin with 2 setae, distal margin with spine; epimeron 3 posteroventral margin with small sinus.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="9" lastPageNumber="22" pageId="7" pageNumber="20" type="description (male)">
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<paragraph pageId="7" pageNumber="20">Description (male).</paragraph>
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<paragraph lastPageId="8" lastPageNumber="21" pageId="7" pageNumber="20">
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Head. Anterior margin truncate, anterodistal margin evenly rounded; ventral cephalic keel anterior margin transverse, anteroventral margin rounded, ventral margin straight; eyes with more than 10 ommatidia, large, round. Antenna 1 0.2
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<normalizedToken originalValue="×">x</normalizedToken>
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body length, flagellum 6-articulate, peduncle article 1 width less than 2
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<normalizedToken originalValue="×">x</normalizedToken>
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article 2, accessory flagellum 2-articulate. Antenna 2 0.2
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<normalizedToken originalValue="×">x</normalizedToken>
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body length, subequal in length with antenna 1, flagellum 4-articulate. Mandibular palp ratio of articles 1-3 1.0: 3.5: 1.6, article 2 robust with 4 setae, article 3 with 2 distal setae, incisors strongly dentate; left mandible with 12 raker spines, lacinia mobilis large, strongly toothed; right mandible with 12 raker spines, lacinia mobilis small, weakly dentate, with 3 rows of dentition. Upper lip asymmetrically lobate, anterior margin bare. Lower lip inner lobes fused, setose, with facial setae; outer lobes with moderate gape, anterior margins setose. Maxilla 1 palp 1-articulate with 3 distal setae; outer plate with 6 distal robust setae and 5 distal slender setae. Maxilla 2 inner plate with 3 robust distal setae and 5 slender distal setae; outer plate with 4 robust distal marginal setae and 21 marginal setae. Maxilliped inner plates distal margin with arc-shaped indentation, with short robust setae and long plumose setae; outer plate inner margin tuberculate, reaching 0.2
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<normalizedToken originalValue="×">x</normalizedToken>
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<pageBreakToken pageId="8" pageNumber="21" start="start">palp</pageBreakToken>
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article 1, inner plate plumose marginal setae; palp article 4 subequal in length with article 3, distally acute.
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</paragraph>
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<paragraph lastPageId="9" lastPageNumber="22" pageId="8" pageNumber="21">
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Pereon. Coxae 1-4 relative widths 1.0: 1.6: 1.4: 1.7. Gnathopod 1 coxa smooth, with tiny marginal setae, anterodistal margin produced, subquadrate with cusp, distal
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<pageBreakToken pageId="9" pageNumber="22" start="start">margin</pageBreakToken>
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rounded, posteroventral margin narrowly rounded, facial setae absent; basis centrally expanded, anterior margin with 2 short setae, posterior margin with 2 medium setae; ischium bare; carpus linear, length 14.2
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<normalizedToken originalValue="×">x</normalizedToken>
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width, proximal margin dentate, distal margin with 3 short setae; propodus curved, palm dentate with 6 distal setae; dactylus with linear striation and 1 short seta, reaching 0.2
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<normalizedToken originalValue="×">x</normalizedToken>
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propodus length. Gnathopod 2 coxa broader than long, subequal to coxa 3, smooth, with tiny marginal setae, anterior margin expanded anteriorly with cusp, anterodistally subquadrate, distal margin straight, posterior margin straight, facial setae absent; basis distally expanded, anterior margin with 6 short setae, posterior margin bare; ischium with 3 distal setae and 1 posterodistal seta; carpus 0.3
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<normalizedToken originalValue="×">x</normalizedToken>
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propodus length, curved, distally tapered, anterior margin dentate; propodus with 1 mediofacial setal row displaced to palm, reaching 0.7
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<normalizedToken originalValue="×">x</normalizedToken>
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propodus length, with 1 row of robust submarginal setae, posterior margin smooth, palm convex with 4 major tubercles; dactylus curved, proximal margin smooth with 2 setae, distal margin with 1 tooth, anterior margin distally acute, reaching 0.7
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<normalizedToken originalValue="×">x</normalizedToken>
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propodus length. Pereopod 3 coxa length 1.1
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<normalizedToken originalValue="×">x</normalizedToken>
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width, anterodistal corner overriding distal face of coxa 2, extending below it, smooth, with tiny marginal setae, anterior margin expanded, distal margin slightly convex with cusps, posterior margin straight, facial setae absent. Pereopod 4 coxa smooth, with tiny marginal setae, anterior margin produced with cusp, distal margin evenly rounded, posterior margin excavate, facial setae absent. Pereopods 5-7 coxae facial setae absent; bases oval, width length ratios 1: 1.3, 1: 1.4, 1: 1.4; posterior margins serrate, setose.
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</paragraph>
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<paragraph pageId="9" pageNumber="22">
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Pleon. Epimera 1-2 with ventral setae, epimeron 3 bare; epimeron 3 posteroventral corner with small sinus, subquadrate. Uropods 1-3 relative lengths 1.0: 0.7: 0.7; inner and outer rami lined with short marginal setae. Uropod 1 peduncle and outer ramus subequal in length with inner ramus; inner and outer rami each with 3 robust setae. Uropod 2 peduncle 0.9
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<normalizedToken originalValue="×">x</normalizedToken>
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inner ramus length; outer ramus 0.8
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<normalizedToken originalValue="×">x</normalizedToken>
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inner ramus length; inner and outer rami each with 2 robust setae. Uropod 3 peduncle 1.5
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<normalizedToken originalValue="×">x</normalizedToken>
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inner ramus length; outer ramus 0.9
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<normalizedToken originalValue="×">x</normalizedToken>
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inner ramus length; inner and outer rami each with 2 robust setae. Telson 1.9
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<normalizedToken originalValue="×">x</normalizedToken>
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longer than wide, without facial or marginal setae, apex very weakly tridentate.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="9" pageNumber="22" type="female (sexually dimorphic characters)">
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<paragraph pageId="9" pageNumber="22">Female (sexually dimorphic characters).</paragraph>
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<paragraph pageId="9" pageNumber="22">Gnathopod 1 basis anterior margin with 3 short setae, posterior margin with 15 medium setae; ischium with 1 posterodistal seta; carpus distal margin with 4 short setae; propodus palm with 9 distal setae. Gnathopod 2 propodus with longer robust submarginal setae.</paragraph>
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<caption pageId="9" pageNumber="22">
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<paragraph pageId="9" pageNumber="22">
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Figure 5.
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe elegans" order="Amphipoda" pageId="9" pageNumber="22" phylum="Arthropoda" rank="species" species="elegans">Leucothoe elegans</taxonomicName>
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sp. n., holotype male, 4.5 mm, RUMF-ZC-1658.
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</paragraph>
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</caption>
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<caption pageId="9" pageNumber="22">
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<paragraph pageId="9" pageNumber="22">
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Figure 6.
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe elegans" order="Amphipoda" pageId="9" pageNumber="22" phylum="Arthropoda" rank="species" species="elegans">Leucothoe elegans</taxonomicName>
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sp. n., holotype male, 4.5 mm, RUMF-ZC-1658; paratype female, 5.7 mm, RUMF-ZC-1659.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="9" pageNumber="22" type="etymology">
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<paragraph pageId="9" pageNumber="22">Etymology.</paragraph>
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<paragraph pageId="9" pageNumber="22">
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After the Latin
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<normalizedToken originalValue="‘elegans’">'elegans'</normalizedToken>
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, meaning tasteful, choice, fine, and referring to the elegant, elongate gnathopod 1 of males and females of this species.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="9" pageNumber="22" type="ecology">
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<paragraph pageId="9" pageNumber="22">Ecology.</paragraph>
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<paragraph pageId="9" pageNumber="22">
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In branchial chamber of solitary ascidian,
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<taxonomicName class="Ascidiacea" family="Diazonidae" genus="Rhopalaea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rhopalaea circula" order="Aplousobranchia" pageId="9" pageNumber="22" phylum="Chordata" rank="species" species="circula">Rhopalaea circula</taxonomicName>
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(Fig. 18F); grey/purple hard sponge; dark red chimney sponge; orange flame sponge; purple brown soft sponge; and orange stubby sponge.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="10" lastPageNumber="23" pageId="9" pageNumber="22" type="relationships">
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<paragraph pageId="9" pageNumber="22">Relationships.</paragraph>
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<paragraph lastPageId="10" lastPageNumber="23" pageId="9" pageNumber="22">
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe elegans" order="Amphipoda" pageId="9" pageNumber="22" phylum="Arthropoda" rank="species" species="elegans">Leucothoe elegans</taxonomicName>
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is similar to
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe germanalcyone" order="Amphipoda" pageId="9" pageNumber="22" phylum="Arthropoda" rank="species" species="germanalcyone">Leucothoe germanalcyone</taxonomicName>
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Hirayama, 1992 in having an enlarged eye; similar to
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe flammosa" order="Amphipoda" pageId="9" pageNumber="22" phylum="Arthropoda" rank="species" species="flammosa">Leucothoe flammosa</taxonomicName>
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Thomas and Klebba, 2007 and
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe uschakovi" order="Amphipoda" pageId="9" pageNumber="22" phylum="Arthropoda" rank="species" species="uschakovi">Leucothoe uschakovi</taxonomicName>
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Gurjanova, 1951 in having an elongate gnathopod 1 with a centrally widened basis; and similar to
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe nagatai" order="Amphipoda" pageId="9" pageNumber="22" phylum="Arthropoda" rank="species" species="nagatai">Leucothoe nagatai</taxonomicName>
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in having short antennae, narrow
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<pageBreakToken pageId="10" pageNumber="23" start="start">pereopod</pageBreakToken>
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5-7 bases, and a sinuous epimeron 3.
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe elegans" order="Amphipoda" pageId="10" pageNumber="23" phylum="Arthropoda" rank="species" species="elegans">Leucothoe elegans</taxonomicName>
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differs from these species in having a dentate right mandible lacinia mobilis, female gnathopod 1 with many posterior setae, and gnathopod 2 propodus with submarginal row of robust setae.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="11" pageNumber="24" type="remarks">
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<paragraph pageId="11" pageNumber="24">
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<pageBreakToken pageId="11" pageNumber="24" start="start">Remarks</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="11" pageNumber="24">
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe elegans" order="Amphipoda" pageId="11" pageNumber="24" phylum="Arthropoda" rank="species" species="elegans">Leucothoe elegans</taxonomicName>
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is translucent ivory in color (Fig. 17C). This species has only been collected on Yakushima Island and from Shioya Bay, on the east coast of
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<normalizedToken originalValue="Okinawa–jima">Okinawa-jima</normalizedToken>
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Island, Okinawa.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="11" pageNumber="24" type="distribution">
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<paragraph pageId="11" pageNumber="24">Distribution.</paragraph>
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<paragraph pageId="11" pageNumber="24">
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East China Sea:
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<normalizedToken originalValue="Okinawa–jima">Okinawa-jima</normalizedToken>
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Island, Okinawa and Yakushima Island, Kagoshima, Japan.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |