204 lines
16 KiB
XML
204 lines
16 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.483.8936" ID-GBIF-Dataset="abb445bf-541c-4cda-b374-e7e9325cad35" ID-PMC="PMC4351450" ID-Pensoft-Pub="1313-2970-483-149" ID-PubMed="25755627" ID-ZBK="58EC3A1C74394C159592ADEA729791B3" ModsDocAuthor="" ModsDocDate="2015" ModsDocID="1313-2970-483-149" ModsDocOrigin="ZooKeys 483" ModsDocTitle="Halechiniscidae (Heterotardigrada, Arthrotardigrada) of Oura Bay, Okinawajima, Ryukyu Islands, with descriptions of three new species" checkinTime="1451244667058" checkinUser="pensoft" docAuthor="Fujimoto, Shinta" docDate="2015" docId="60B2A3F543E3206113BD56759A2489AA" docLanguage="en" docName="ZooKeys 483: 149-166" docOrigin="ZooKeys 483" docSource="http://dx.doi.org/10.3897/zookeys.483.8936" docTitle="Halechiniscus churakaagii Fujimoto, 2015, sp. n." docType="treatment" docUuid="1BDD532C-501A-4D6B-9B2D-B4520618DB88" docUuidSource="ZooBank" docVersion="4" lastPageNumber="155" masterDocId="FF9159153C0CFFF7FFAD6756FFA1E77C" masterDocTitle="Halechiniscidae (Heterotardigrada, Arthrotardigrada) of Oura Bay, Okinawajima, Ryukyu Islands, with descriptions of three new species" masterLastPageNumber="166" masterPageNumber="149" pageNumber="153" updateTime="1668160059146" 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>Halechiniscidae (Heterotardigrada, Arthrotardigrada) of Oura Bay, Okinawajima, Ryukyu Islands, with descriptions of three new species</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>Fujimoto, Shinta</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>2015</mods:date>
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<mods:detail type="volume">
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<mods:number>483</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>149</mods:start>
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<mods:end>166</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.483.8936</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.483.8936</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-483-149</mods:identifier>
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<mods:identifier type="ZBK">58EC3A1C74394C159592ADEA729791B3</mods:identifier>
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<mods:identifier type="ZooBank">58EC3A1C74394C159592ADEA729791B3</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152058308" LSID="urn:lsid:zoobank.org:act:1BDD532C-501A-4D6B-9B2D-B4520618DB88" httpUri="http://treatment.plazi.org/id/60B2A3F543E3206113BD56759A2489AA" lastPageId="6" lastPageNumber="155" pageId="4" pageNumber="153">
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<subSubSection pageId="4" pageNumber="153" type="multiple">
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<paragraph pageId="4" pageNumber="153">Taxon classification Animalia Arthrotardigrada Halechiniscidae</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="153" type="nomenclature">
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<paragraph pageId="4" pageNumber="153">
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<taxonomicName LSID="http://zoobank.org/1BDD532C-501A-4D6B-9B2D-B4520618DB88" class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus churakaagii" order="Arthrotardigrada" pageId="4" pageNumber="153" phylum="Tardigrada" rank="species" species="churakaagii">Halechiniscus churakaagii</taxonomicName>
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<taxonomicNameLabel pageId="4" pageNumber="153">sp. n.</taxonomicNameLabel>
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Figs 4, 5, Table 2
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="154" type="diagnosis">
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<paragraph pageId="5" pageNumber="154">
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<pageBreakToken pageId="5" pageNumber="154" start="start">Diagnosis</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="5" pageNumber="154">
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<taxonomicName class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus" order="Arthrotardigrada" pageId="5" pageNumber="154" phylum="Tardigrada" rank="genus">Halechiniscus</taxonomicName>
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with cephalic region consisting of antero-medial lobe and dorsal lobe; median cirrus inserted on long robust cirrophore; dorsal internal cirrus inserted on robust cirrophore; ventral external cirrus inserted on short cirrophore; lateral cirrus and primary clava inserted on large lateral cirrophore; large scapular process with flat oval tip; cirrus E with proximal portion with distal dark portion and distal flagellum; bipartite leg I sense organ; large, unsegmented legs II and III sense organs; papillate leg IV sense organ; all claws with calcar.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="154" type="material examined">
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<paragraph pageId="5" pageNumber="154">Material examined.</paragraph>
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<paragraph pageId="5" pageNumber="154">Holotype: KUZ Z710: adult female found in sediment sample 1 (Table 1).</paragraph>
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<paragraph pageId="5" pageNumber="154">Paratype: KUZ Z711: adult female found in sediment sample 4 (Table 1).</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="154" type="type locality">
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<paragraph pageId="5" pageNumber="154">Type locality.</paragraph>
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<paragraph pageId="5" pageNumber="154">
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Water depth of 6 m, off Sedake, Oura Bay, Okinawajima, one of the Ryukyu Islands, Japan (
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<geoCoordinate direction="north" orientation="latitude" precision="1" value="26.544184">26°32'39.06"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="1" value="128.048">128°2'52.8"E</geoCoordinate>
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). Collected by the author on 24th January 2014.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="154" type="type depository">
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<paragraph pageId="5" pageNumber="154">Type depository.</paragraph>
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<paragraph pageId="5" pageNumber="154">The type series is deposited in the Zoological Collection of Kyoto University (KUZ).</paragraph>
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</subSubSection>
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<subSubSection lastPageId="6" lastPageNumber="155" pageId="5" pageNumber="154" type="description of holotype">
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<paragraph pageId="5" pageNumber="154">Description of holotype.</paragraph>
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<paragraph lastPageId="6" lastPageNumber="155" pageId="5" pageNumber="154">
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Adult female, body length: 170
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<normalizedToken originalValue="μm">μm</normalizedToken>
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(Figs 4, 5A, B). Dorsal and ventral surface smooth. Cephalic region divided into two lobes: antero-ventrally protruded round medial lobe and dorsal lobe. Unpaired median cirrus with scapus (42
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) constricted at distal end, tubular portion (20
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) and flagellum (4
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) inserted on robust cirrophore (28
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<normalizedToken originalValue="μm">μm</normalizedToken>
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); positioned dorsally 28
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<normalizedToken originalValue="μm">μm</normalizedToken>
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from frontal margin on dorsal lobe. Pair of internal cirri each with scapus (16
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<normalizedToken originalValue="μm">μm</normalizedToken>
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), tubular portion (16
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) and flagellum (5
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) inserted on cirrophore; positioned dorsally on basal margin of medial lobe. Base of internal cirri arise postero-internal to base of scapi beneath cuticle. Pair of external cirri each with scapus (9
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<normalizedToken originalValue="μm">μm</normalizedToken>
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), tubular portion (9
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) and flagellum (4
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) inserted on cirrophore; positioned ventrally on medial lobe. Base of external cirri arise posterior to scapi beneath cuticle. Lateral cirrus with scapus (35
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<normalizedToken originalValue="μm">μm</normalizedToken>
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), tubular portion (23
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) and flagellum (10
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) and elongate primary clava (34
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) inserted on each large, lateral cirrophore; positioned slightly anterior to level of median cirrus on dorsal lobe. Primary clava with basal van der
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<normalizedToken originalValue="Land’s">Land's</normalizedToken>
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body inserted antero-ventrally to lateral cirrus. Secondary clava absent. Mouth cone protruded antero-ventrally. Bucco-pharyngeal apparatus not visible except for pharyngeal bulb (17
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<normalizedToken originalValue="μm">μm</normalizedToken>
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<normalizedToken originalValue="×">x</normalizedToken>
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19
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<normalizedToken originalValue="μm">μm</normalizedToken>
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). Laterally protruded scapular process (42
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<normalizedToken originalValue="μm">μm</normalizedToken>
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)
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<pageBreakToken pageId="6" pageNumber="155" start="start">with</pageBreakToken>
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flat oval tip (Figs 4, 5C). No other process present. Cirrus E (86
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) segmented into proximal portion and distal flagellum. Under phase contrast microscopy distal end of proximal portion appears dark (Fig. 5D). This could be a distinct portion with accordion-like folds but scanning electron microscopy is required for confirmation. Rosette-like female gonopore opens ventrally 20
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<normalizedToken originalValue="μm">μm</normalizedToken>
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anterior to anus. Seminal receptacle ducts open postero-lateral to gonopore. Vesicles of seminal receptacles not visible. Leg I sense organ (11
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) consists of scapus and flagellum. Leg II and III sense organs (36
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<normalizedToken originalValue="μm">μm</normalizedToken>
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, 32
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) each consists of unsegmented, large spine. Papillate leg IV sense organ (16
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<normalizedToken originalValue="μm">μm</normalizedToken>
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) with basal van der
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<normalizedToken originalValue="Land’s">Land's</normalizedToken>
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body and terminal constriction inserted on slender cirrophore. Each leg terminates in digits with wrinkles and distal claws. All claws with small calcar.
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</paragraph>
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<caption pageId="6" pageNumber="155">
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<paragraph pageId="6" pageNumber="155">
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Figure 4. Drawing of
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<taxonomicName class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus churakaagii" order="Arthrotardigrada" pageId="6" pageNumber="155" phylum="Tardigrada" rank="species" species="churakaagii">Halechiniscus churakaagii</taxonomicName>
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sp. n., holotype KUZ Z710 (dorsal view). a anus; cE cirrus E; d seminal receptacle duct; ec external cirrus; g gonopore; ic internal cirrus; lc lateral cirrus; mc median cirrus; mo mouth; pb pharyngeal bulb; pc primary clava; sc scapular process; s1-4 leg
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<normalizedToken originalValue="I–IV">I-IV</normalizedToken>
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sense organs.
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</paragraph>
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</caption>
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<caption pageId="6" pageNumber="155">
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<paragraph pageId="6" pageNumber="155">
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Figure 5. Phase contrast micrograph of
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<taxonomicName class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus churakaagii" order="Arthrotardigrada" pageId="6" pageNumber="155" phylum="Tardigrada" rank="species" species="churakaagii">Halechiniscus churakaagii</taxonomicName>
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sp. n., holotype KUZ Z710. A dorsal view, scale bar = 50
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<normalizedToken originalValue="μm">μm</normalizedToken>
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B ventral view, scale bar = 50
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<normalizedToken originalValue="μm">μm</normalizedToken>
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C scapular process (white arrowhead), scale bar = 10
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<normalizedToken originalValue="μm">μm</normalizedToken>
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D cirrus E with dark region (white, hollow arrowhead), scale bar = 20
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<normalizedToken originalValue="μm">μm</normalizedToken>
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.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="6" pageNumber="155" type="etymology">
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<paragraph pageId="6" pageNumber="155">Etymology.</paragraph>
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<paragraph pageId="6" pageNumber="155">
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The specific epithet, churakaagii, is a Ryukyuan word for "beautiful woman" (
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<bibRefCitation author="Tojo, M" journalOrPublisher="Tokoshoin, Tokyo" pageId="14" pageNumber="163" title="Nantou Hougen Shiryou." year="1930">Tojo 1930</bibRefCitation>
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) referring to the well-defined cephalic morphology of the new species.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="6" pageNumber="155" type="differential diagnosis">
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<paragraph pageId="6" pageNumber="155">Differential diagnosis.</paragraph>
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<paragraph pageId="6" pageNumber="155">
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The robust cirrophores of the median and lateral cirri are present in
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<taxonomicName class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus chafarinensis" order="Arthrotardigrada" pageId="6" pageNumber="155" phylum="Tardigrada" rank="species" species="chafarinensis">Halechiniscus chafarinensis</taxonomicName>
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De Zio Grimaldi & Villora Moreno, 1995,
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<taxonomicName class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus macrocephalus" order="Arthrotardigrada" pageId="6" pageNumber="155" phylum="Tardigrada" rank="species" species="macrocephalus">Halechiniscus macrocephalus</taxonomicName>
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Grimaldi de Zio,
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<normalizedToken originalValue="D’Addabbo">D'Addabbo</normalizedToken>
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Gallo & Morone De Lucia, 1988,
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<taxonomicName class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus paratuleari" order="Arthrotardigrada" pageId="6" pageNumber="155" phylum="Tardigrada" rank="species" species="paratuleari">Halechiniscus paratuleari</taxonomicName>
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Grimaldi de Zio,
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<normalizedToken originalValue="D’Addabbo">D'Addabbo</normalizedToken>
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Gallo & Morone De Lucia, 1988,
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<taxonomicName class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus tuleari" order="Arthrotardigrada" pageId="6" pageNumber="155" phylum="Tardigrada" rank="species" species="tuleari">Halechiniscus tuleari</taxonomicName>
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Renaud-Mornant, 1979 and
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<taxonomicName class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus churakaagii" order="Arthrotardigrada" pageId="6" pageNumber="155" phylum="Tardigrada" rank="species" species="churakaagii">Halechiniscus churakaagii</taxonomicName>
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sp. n. Among these species,
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<taxonomicName class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus paratuleari" order="Arthrotardigrada" pageId="6" pageNumber="155" phylum="Tardigrada" rank="species" species="paratuleari">Halechiniscus paratuleari</taxonomicName>
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and the new species are the only species with large scapular processes. The new species is distinguished from
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<taxonomicName class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus paratuleari" order="Arthrotardigrada" pageId="6" pageNumber="155" phylum="Tardigrada" rank="species" species="paratuleari">Halechiniscus paratuleari</taxonomicName>
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by the flat oval tip of the scapular process, which is acute in the latter and by the dark portion on cirrus E, which is absent in the latter.
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</paragraph>
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<paragraph pageId="6" pageNumber="155">
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I have interpreted the dorsally positioned cirrus as internal cirrus and the ventrally positioned cirrus as external cirrus in the new species, which is opposite to the interpretation of these features in the original descriptions of
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<taxonomicName class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus tuleari" order="Arthrotardigrada" pageId="6" pageNumber="155" phylum="Tardigrada" rank="species" species="tuleari">Halechiniscus tuleari</taxonomicName>
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and
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<taxonomicName class="Heterotardigrada" family="Halechiniscidae" genus="Halechiniscus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Halechiniscus paratuleari" order="Arthrotardigrada" pageId="6" pageNumber="155" phylum="Tardigrada" rank="species" species="paratuleari">Halechiniscus paratuleari</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |