216 lines
20 KiB
XML
216 lines
20 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.193.2842" ID-GBIF-Dataset="514771fe-05b3-404a-80e0-9b906aab5c40" ID-PMC="PMC3361138" ID-Pensoft-Pub="1313-2970-193-27" ID-PubMed="22679378" ModsDocAuthor="" ModsDocDate="2012" ModsDocID="1313-2970-193-27" ModsDocOrigin="ZooKeys 193" ModsDocTitle="Two new species of the interstitial genus Parvocythere (Crustacea, Ostracoda, Cytheroidea) from Japan: an example of morphological variation" checkinTime="1451249024300" checkinUser="pensoft" docAuthor="Higashi, Ryouichi & Tsukagoshi, Akira" docDate="2012" docId="73924EE1FACE9D865C887842E1EB45B6" docLanguage="en" docName="ZooKeys 193: 27-48" docOrigin="ZooKeys 193" docSource="http://dx.doi.org/10.3897/zookeys.193.2842" docTitle="Parvocythere gottwaldi Higashi & Tsukagoshi, 2012, sp. n." docType="treatment" docVersion="4" lastPageNumber="34" masterDocId="F83BFFAE9977FFA808345F65FFACFFBE" masterDocTitle="Two new species of the interstitial genus Parvocythere (Crustacea, Ostracoda, Cytheroidea) from Japan: an example of morphological variation" masterLastPageNumber="48" masterPageNumber="27" pageNumber="28" updateTime="1668153896956" 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>Two new species of the interstitial genus Parvocythere (Crustacea, Ostracoda, Cytheroidea) from Japan: an example of morphological variation</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>Higashi, Ryouichi</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>Tsukagoshi, Akira</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>193</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>27</mods:start>
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<mods:end>48</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.193.2842</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.193.2842</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-193-27</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152035519" LSID="urn:lsid:zoobank.org:act:DA15A671-D4D4-427C-A92D-3AC27CE729D7" httpUri="http://treatment.plazi.org/id/73924EE1FACE9D865C887842E1EB45B6" lastPageId="7" lastPageNumber="34" pageId="1" pageNumber="28">
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<subSubSection pageId="1" pageNumber="28" type="nomenclature">
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<paragraph pageId="1" pageNumber="28">
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<taxonomicName LSID="urn:lsid:zoobank.org:act:DA15A671-D4D4-427C-A92D-3AC27CE729D7" class="Ostracoda" family="Parvocytheridae" genus="Parvocythere" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Parvocythere gottwaldi" order="Podocopida" pageId="1" pageNumber="28" phylum="Arthropoda" rank="species" species="gottwaldi">Parvocythere gottwaldi</taxonomicName>
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<taxonomicNameLabel pageId="1" pageNumber="28">sp. n.</taxonomicNameLabel>
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Figs 2-6
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="2" lastPageNumber="29" pageId="1" pageNumber="28" type="type series">
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<paragraph pageId="1" pageNumber="28">Type series.</paragraph>
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<paragraph lastPageId="2" lastPageNumber="29" pageId="1" pageNumber="28">
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Holotype: adult male (SUM-CO-2023), right valve length 173
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, height 88
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, left valve length 174
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, height 84
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<normalizedToken originalValue="µm">µm</normalizedToken>
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, appendages mounted on slide and valves
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<pageBreakToken pageId="2" pageNumber="29" start="start">preserved</pageBreakToken>
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in a cardboard cell slide, Paratypes: 14 adult males (SUM-CO-2024-2037) and 12 adult females (SUM-CO-2038-2049). All illustrated specimens were collected from interstitial pore-water at the type locality on October 10, 2008.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="29" type="type locality">
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<paragraph pageId="2" pageNumber="29">Type locality.</paragraph>
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<paragraph pageId="2" pageNumber="29">
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Daio-zaki, Shima City, Mie Prefecture, Pacific coast of central Japan,
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="34.2765">34°16.59'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="9" value="136.89717">136°53.83'E</geoCoordinate>
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(Fig. 1B), in sediments at approximately 20 cm depth. The sediment is mainly composed of clastic very coarse sand and granules.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="29" type="etymology">
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<paragraph pageId="2" pageNumber="29">Etymology.</paragraph>
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<paragraph pageId="2" pageNumber="29">This species is named in honour of Dr Jochen Gottwald, in recognition of his significant contribution to our knowledge of interstitial ostracods.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="4" lastPageNumber="31" pageId="3" pageNumber="30" type="diagnosis">
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<paragraph pageId="3" pageNumber="30">
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<pageBreakToken pageId="3" pageNumber="30" start="start">Diagnosis</pageBreakToken>
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.
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</paragraph>
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<paragraph lastPageId="4" lastPageNumber="31" pageId="3" pageNumber="30">
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Carapace rounded trapezial in lateral view with very slight protrusion on antero-ventral area and sharp wrinkle-like groove running from middle to posterior in ventral area of both valves. Tapering anterior margin. Forty-two pore systems per valve. Seven and four marginal pores along anterior and posterior margins, respectively. Marginal infold broad in anterior but very narrow in posterior. Hingement modified pentodont type. No suture on middle of fourth podomere of antennula. Antenna with only one distal claw. Male copulatory organ asymmetric, with left organ (hemipenis) larger than right one. Left hemipenis bearing long copulatory duct single coiled
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<pageBreakToken pageId="4" pageNumber="31" start="start">in</pageBreakToken>
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distal part, short and stout claw-like dorsal ramus, two-pronged ventral ramus, and well-developed crescent-shaped distal lobe with thick seta on centre of proximal part. Right organ reduced and bearing much reduced copulatory duct and crescent-shaped distal lobe with thick seta on proximal part.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="6" lastPageNumber="33" pageId="4" pageNumber="31" type="description">
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<paragraph pageId="4" pageNumber="31">Description.</paragraph>
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<paragraph pageId="4" pageNumber="31">Carapace (Figs 2 and 3). Carapace rounded trapezial in lateral view with very slight protrusion on antero-ventral area and sharp wrinkle-like groove running from middle to posterior in ventral area of both valves. Anterior margin tapers more than posterior margin. Dorsal margin slightly rounded. Ventral margin almost straight. Carapace surface generally smooth. All pore systems of simple type and 42 per valve. Seven and four marginal pores along anterior and posterior margins, respectively. Marginal infold broad in anterior area but very narrow in posterior area. Vestibula occupying large part of marginal infold. Inner surface covered with numerous pits. Hingement modified pentodont type. Right valve slightly overlapping left valve along hinge line. Four adductor muscle scars in oblique row. Mandibular scar visible beneath frontal scar.</paragraph>
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<caption pageId="4" pageNumber="31">
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<paragraph pageId="4" pageNumber="31">
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Figure 2. Carapaces of
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<taxonomicName class="Ostracoda" family="Parvocytheridae" genus="Parvocythere" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Parvocythere gottwaldi" order="Podocopida" pageId="4" pageNumber="31" phylum="Arthropoda" rank="species" species="gottwaldi">Parvocythere gottwaldi</taxonomicName>
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sp. n. Holotype (SUM-CO-2023). A right external view B left external view. Each of the carapace structures are transmitted images. Scale bar indicates 100
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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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<caption pageId="4" pageNumber="31">
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<paragraph pageId="4" pageNumber="31">
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Figure 3. Carapaces of
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<taxonomicName class="Ostracoda" family="Parvocytheridae" genus="Parvocythere" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Parvocythere gottwaldi" order="Podocopida" pageId="4" pageNumber="31" phylum="Arthropoda" rank="species" species="gottwaldi">Parvocythere gottwaldi</taxonomicName>
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sp. n.
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<normalizedToken originalValue="A–D">A-D</normalizedToken>
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, G and H male specimens: A and B paratype (SUM-CO-2025) C and D paratype (SUM-CO-2026) G paratype (SUM-CO-2027) H paratype (SUM-CO-2028). A left external lateral view B right external lateral view C internal view of left valve D internal view of right valve G dorsal view H ventral view. E and F female specimens: E paratype (SUM-CO-2039) F paratype (SUM-CO-2040). E left external view F right external view. Scale bar indicates 100
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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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<paragraph pageId="4" pageNumber="31">Antennula (Fig. 4A). Five articulated podomeres. First podomere bare and short. Second podomere nine quarters as long as first podomere, with fine setae along antero-distal margin. Third podomere half as long as second podomere, with one medium seta on antero-distal end. Fourth podomere as long as third podomere, with two long setae on antero-distal end and one long seta on postero-distal end. Fifth podomere half as long as fourth podomere, with one long and one very long simple setae and one spatula-like long seta on distal end.</paragraph>
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<paragraph pageId="4" pageNumber="31">Antenna (Fig. 4B). Four articulated podomeres. First podomere with two segmented spinneret (exopodite) on distal end. Second podomere half as long as first podomere, with bunch of fine setae along middle of anterior margin and one medium seta on postero-distal end. Third podomere eight-thirds as long as second podomere, with numerous fine setae along antero-proximal margin, medium setae on middle of anterior margin and on middle of posterior margin, respectively, and one medium setulous seta on postero-distal end. Fifth podomere quarter length of fourth podomere, with numerous fine setae on distal margin and one stout claw on distal end.</paragraph>
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<paragraph pageId="4" pageNumber="31">Mandibula (Fig. 4C1, C2). Coxa (Fig. 4C1) elongated, with one medium seta on antero-ventral part. Six coxal endites. Palp (Fig. 4C2) consisting of four articulated podomeres. First podomere (basis) with bifurcated lamella (exopodite) on middle of dorsal margin. Second podomere two-thirds as long as first podomere, with three medium setae on ventro-distal end. Third podomere five-fourths as long as second podomere, with one stout medium seta on outside of distal end and one medium seta on ventro-distal end. Fourth podomere two-fifths as long as third podomere, with four setae on distal end.</paragraph>
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<paragraph pageId="4" pageNumber="31">Maxillula (Fig. 4D and E). Thin branchial plate (exopodite; Fig. 4E) with approximately nine plumose setae. Basal podomere with one palp and three endites (Fig. 4D). Palp consisting of two articulated podomeres: first podomere with one long and one medium seta on antero-distal end; second podomere eleven-tenth as long as first podomere, with one medium seta on middle of posterior margin and two medium setae on distal end. Endites with three setae, respectively.</paragraph>
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<paragraph pageId="5" pageNumber="32">
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<pageBreakToken pageId="5" pageNumber="32" start="start">Fifth</pageBreakToken>
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limb (Fig. 4F). Four articulated podomeres. First podomere with two short setae on antero-distal end. Second podomere five-sixths as long as first podomere, with one medium seta on antero-distal end. Third podomere four-fifths as long as second podomere. Fourth podomere three-halves as long as third podomere, with stout distal claw.
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</paragraph>
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<paragraph pageId="5" pageNumber="32">Sixth limb (Fig. 4G). Four articulated podomeres. First podomere with one short seta on antero-distal end. Second podomere four-fifth as long as first podomere, with one long seta on antero-distal end. Third podomere as long as second podomere. Fourth podomere seven-fifth as long as third podomere with stout distal claw.</paragraph>
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<caption pageId="5" pageNumber="32">
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<paragraph pageId="5" pageNumber="32">
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Figure 4. Appendages of
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<taxonomicName class="Ostracoda" family="Parvocytheridae" genus="Parvocythere" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Parvocythere gottwaldi" order="Podocopida" pageId="5" pageNumber="32" phylum="Arthropoda" rank="species" species="gottwaldi">Parvocythere gottwaldi</taxonomicName>
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sp. n.
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<normalizedToken originalValue="A–D">A-D</normalizedToken>
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, F and G holotype (SUM-CO-2023) E paratype (SUM-CO-2024). A antennula B antenna C1 coxa of mandibula C2 palp of mandibula D palp and endites of maxillula E branchial plate of maxillula F fifth limb G sixth limb. Scale bar indicates 50
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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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<paragraph pageId="5" pageNumber="32">Seventh limb. Absent.</paragraph>
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<paragraph lastPageId="6" lastPageNumber="33" pageId="5" pageNumber="32">
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Male copulatory organ (Fig. 5). Asymmetric. Right organ (Fig. 5B) smaller than left (Fig. 5A), with reduced components: square capsule with weakened framework; copulatory duct (Cd) extremely reduced; distal lobe (Dl) thin and crescent-shaped with thick seta on proximal part. Left organ bearing well-developed long copulatory duct (Cd) single coiled in distal part; short and stout claw-like dorsal ramus (Dr); two-
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<pageBreakToken pageId="6" pageNumber="33" start="start">pronged</pageBreakToken>
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ventral ramus (Vr); and crescent-shaped distal lobe (Dl) with thick seta on centre of proximal part.
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</paragraph>
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<caption pageId="6" pageNumber="33">
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<paragraph pageId="6" pageNumber="33">
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Figure 5. Male copulatory organs of
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<taxonomicName class="Ostracoda" family="Parvocytheridae" genus="Parvocythere" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Parvocythere gottwaldi" order="Podocopida" pageId="6" pageNumber="33" phylum="Arthropoda" rank="species" species="gottwaldi">Parvocythere gottwaldi</taxonomicName>
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sp. n. Holotype (SUM-CO-2023). A external view of left organ B external view of right organ. Copulatory ducts are shaded. Abbreviation: Dr dorsal ramus Vr ventral ramus Dl Distal lobe. Scale bar indicates 50
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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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<paragraph pageId="6" pageNumber="33">Genitalia of female (Fig. 6). Almost symmetric and consisting of rounded frame-work and winding duct with vesicle-like joint nearby opening. Duct opening on ventral side.</paragraph>
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<paragraph pageId="6" pageNumber="33">Eye. Absent.</paragraph>
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<caption pageId="6" pageNumber="33">
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<paragraph pageId="6" pageNumber="33">
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Figure 6. Caudal part of female of
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<taxonomicName class="Ostracoda" family="Parvocytheridae" genus="Parvocythere" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Parvocythere gottwaldi" order="Podocopida" pageId="6" pageNumber="33" phylum="Arthropoda" rank="species" species="gottwaldi">Parvocythere gottwaldi</taxonomicName>
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sp. n. Dorsal view (paratype, SUM-CO-2038). Arrows indicate openings. Scale bar indicates 50
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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="33" type="dimensions">
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<paragraph pageId="6" pageNumber="33">Dimensions.</paragraph>
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<paragraph pageId="6" pageNumber="33">See Table 1.</paragraph>
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<caption ID-Table-UUID="C5FBC8608C00E2CE4ACA4DE8669E1B6C" httpUri="http://table.plazi.org/id/C5FBC8608C00E2CE4ACA4DE8669E1B6C" pageId="6" pageNumber="33">
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<paragraph pageId="6" pageNumber="33">
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Table 1. Dimensions of valves of
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<taxonomicName class="Ostracoda" family="Parvocytheridae" genus="Parvocythere" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Parvocythere gottwaldi" order="Podocopida" pageId="6" pageNumber="33" phylum="Arthropoda" rank="species" species="gottwaldi">Parvocythere gottwaldi</taxonomicName>
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sp. n. from type locality.<br/>
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</paragraph>
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</caption>
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<paragraph pageId="6" pageNumber="33">
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<table pageId="6" pageNumber="33">
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<tr pageId="6" pageNumber="33">
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<th colspan="3" pageId="6" pageNumber="33" rowspan="1">Length (µm)</th>
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<th colspan="3" pageId="6" pageNumber="33" rowspan="1">Height (µm)</th>
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</tr>
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<tr pageId="6" pageNumber="33">
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<th colspan="1" pageId="6" pageNumber="33" rowspan="1">Mean</th>
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<th colspan="1" pageId="6" pageNumber="33" rowspan="1">Observed range</th>
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<th colspan="1" pageId="6" pageNumber="33" rowspan="1">N</th>
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<th colspan="1" pageId="6" pageNumber="33" rowspan="1">Mean</th>
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<th colspan="1" pageId="6" pageNumber="33" rowspan="1">Observed range</th>
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<th colspan="1" pageId="6" pageNumber="33" rowspan="1">N</th>
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</tr>
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</table>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="34" type="occurrences">
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<paragraph pageId="7" pageNumber="34">
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<pageBreakToken pageId="7" pageNumber="34" start="start">Occurrences</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="7" pageNumber="34">
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Type locality and Kozu, Odawara City, Kanagawa Prefecture, Pacific coast of central Japan (
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="35.27883">35°16.73'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="9" value="139.2125">139°12.75'E</geoCoordinate>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="34" type="remarks">
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<paragraph pageId="7" pageNumber="34">Remarks.</paragraph>
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<paragraph pageId="7" pageNumber="34">
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<taxonomicName class="Ostracoda" family="Parvocytheridae" genus="Parvocythere" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Parvocythere gottwaldi" order="Podocopida" pageId="7" pageNumber="34" phylum="Arthropoda" rank="species" species="gottwaldi">Parvocythere gottwaldi</taxonomicName>
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sp. n. resembles
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<taxonomicName class="Ostracoda" family="Parvocytheridae" genus="Parvocythere" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Parvocythere mauiensis" order="Podocopida" pageId="7" pageNumber="34" phylum="Arthropoda" rank="species" species="mauiensis">Parvocythere mauiensis</taxonomicName>
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Hartmann, 1991 in the outline of carapace. The new species, however, can be distinguished from the other species by its antenna with only one distal claw and the asymmetric male copulatory organ. Although this new species is also similar to
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<taxonomicName class="Ostracoda" family="Parvocytheridae" genus="Parvocythere" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Parvocythere" order="Podocopida" pageId="7" pageNumber="34" phylum="Arthropoda" rank="genus">Parvocythere</taxonomicName>
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spec. A, as referred to in
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<bibRefCitation author="Gottwald, J" journalOrPublisher="Mikrofauna Meeresboden" pageId="18" pageNumber="45" pagination="1 - 187" title="Interstitielle Fauna von Galapagos. XXX. Podocopida 1 (Ostracoda)." volume="90" year="1983">Gottwald (1983)</bibRefCitation>
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, in the characteristics of antenna and asymmetric male copulatory organ, the new species can be distinguished from
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<taxonomicName class="Ostracoda" family="Parvocytheridae" genus="Parvocythere" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Parvocythere" order="Podocopida" pageId="7" pageNumber="34" phylum="Arthropoda" rank="genus">Parvocythere</taxonomicName>
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spec. A by the tapering anterior margin of carapace and the copulatory duct (Cd) single coiled in the distal part.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |