137 lines
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137 lines
20 KiB
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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1015.54387" ID-GBIF-Dataset="7f0a1826-ba89-4ecb-adbb-275211293c87" ID-PMC="PMC7878468" ID-Pensoft-Pub="1313-2970-1015-1" ID-Pensoft-UUID="AF1641758561525C8D40BBF3F895FA8A" ID-PubMed="33613041" ID-ZooBank="F6BD92139DB74564AA003C61B2F43B2D" ModsDocID="1313-2970-1015-1" checkinTime="1612497320802" checkinUser="pensoft" docAuthor="Abe, Hirokazu & Sato-Okoshi, Waka" docDate="2021" docId="16EC9D4B3EC8548E96F257625D52BB4B" docLanguage="en" docName="ZooKeys 1015: 1-86" docOrigin="ZooKeys 1015" docPubDate="2021-02-04" docSource="http://dx.doi.org/10.3897/zookeys.1015.54387" docTitle="Pseudopolydora kempi" docType="treatment" docVersion="5" id="AF1641758561525C8D40BBF3F895FA8A" lastPageNumber="1" masterDocId="AF1641758561525C8D40BBF3F895FA8A" masterDocTitle="Molecular identification and larval morphology of spionid polychaetes (Annelida, Spionidae) from northeastern Japan" masterLastPageNumber="86" masterPageNumber="1" pageNumber="1" updateTime="1668149773418" updateUser="ExternalLinkService">
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<mods:titleInfo>
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<mods:title>Molecular identification and larval morphology of spionid polychaetes (Annelida, Spionidae) from northeastern Japan</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:namePart>Abe, Hirokazu</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-7753-9368</mods:nameIdentifier>
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<mods:affiliation>Department of Biology, Center for Liberal Arts & Sciences, Iwate Medical University, Idaidori 1 - 1 - 1, Yahaba-cho, Shiwa-gun, Iwate 028 - 3694, Japan</mods:affiliation>
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<mods:nameIdentifier type="email">habe@iwate-med.ac.jp</mods:nameIdentifier>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Sato-Okoshi, Waka</mods:namePart>
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<mods:affiliation>Laboratory of Biological Oceanography, Graduate School of Agricultural Science, Tohoku University, Aramaki-Aza-Aoba 468 - 1, Aoba-ku, Sendai 980 - 8572, Japan</mods:affiliation>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:title>ZooKeys</mods:title>
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<mods:date>2021</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2021-02-04</mods:number>
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<mods:detail type="volume">
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<mods:number>1015</mods:number>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>86</mods:end>
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<mods:url>http://dx.doi.org/10.3897/zookeys.1015.54387</mods:url>
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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.1015.54387</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-1015-1</mods:identifier>
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<mods:identifier type="ZooBank">F6BD92139DB74564AA003C61B2F43B2D</mods:identifier>
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<treatment ID-GBIF-Taxon="177212522" LSID="urn:lsid:plazi:treatment:16EC9D4B3EC8548E96F257625D52BB4B" httpUri="http://treatment.plazi.org/id/16EC9D4B3EC8548E96F257625D52BB4B" lastPageNumber="1" pageId="0" pageNumber="1">
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<subSubSection pageId="0" pageNumber="1" type="nomenclature">
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<paragraph pageId="0" pageNumber="1">
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<taxonomicName LSID="16EC9D4B-3EC8-548E-96F2-57625D52BB4B" authority="(Southern, 1921)" baseAuthorityName="Southern" baseAuthorityYear="1921" class="Polychaeta" family="Spionidae" genus="Pseudopolydora" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Pseudopolydora kempi" order="Spionida" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="kempi">Pseudopolydora cf. kempi (Southern, 1921)</taxonomicName>
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<figureCitation captionStart="Figure 9" captionStartId="F10" captionText="Figure 9. Light micrographs showing the morphologies of living spionid larvae of genera Pseudopolydora and Spio A, B Pseudopolydora aff. achaeta, dorsal view of 12 - chaetiger (A) and 25 - chetiger larvae (B) C Pseudopolydora cf. kempi, dorsolateral view of 12 - chetiger larva D Pseudopolydora paucibranchiata, dorsal view of 13 - chaetiger larva E, F Pseudopolydora cf. reticulata, dorsal view of 17 - chaetiger (E) and 16 - chaetiger larvae (F) G, H Pseudopolydora tsubaki, dorsal view of 5 - chaetiger (G) and 11 - chaetiger larvae (H) I Pseudopolydora sp., dorsal view of 7 - chaetiger larva J, K Spio sp. 1, dorsal view of 8 - chaetiger (J) and lateral view of 12 - chaetiger larvae (K) L-N Spio sp. 2, dorsal view of 10 - chaetiger (L) and 17 - chaetiger larvae (M), and 17 - chaetiger metamorphosing larvae (N). Scale bars: 300 μm." figureDoi="10.3897/zookeys.1015.54387.figure9" httpUri="https://binary.pensoft.net/fig/505196" pageId="0" pageNumber="1">Fig. 9C</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="larval morphology">
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<paragraph pageId="0" pageNumber="1">Larval morphology.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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Overall body shape fusiform, head region enlarged due to broad prostomium and expanded lateral lips of vestibule. Prostomium gently notched anteriorly. Three pairs of black eyes present in more or less a straight line, most lateral pairs double-eyes. Mid-dorsal melanophore on first chaetiger usually absent (Fig.
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<figureCitation captionStart="Figure 9" captionStartId="F10" captionText="Figure 9. Light micrographs showing the morphologies of living spionid larvae of genera Pseudopolydora and Spio A, B Pseudopolydora aff. achaeta, dorsal view of 12 - chaetiger (A) and 25 - chetiger larvae (B) C Pseudopolydora cf. kempi, dorsolateral view of 12 - chetiger larva D Pseudopolydora paucibranchiata, dorsal view of 13 - chaetiger larva E, F Pseudopolydora cf. reticulata, dorsal view of 17 - chaetiger (E) and 16 - chaetiger larvae (F) G, H Pseudopolydora tsubaki, dorsal view of 5 - chaetiger (G) and 11 - chaetiger larvae (H) I Pseudopolydora sp., dorsal view of 7 - chaetiger larva J, K Spio sp. 1, dorsal view of 8 - chaetiger (J) and lateral view of 12 - chaetiger larvae (K) L-N Spio sp. 2, dorsal view of 10 - chaetiger (L) and 17 - chaetiger larvae (M), and 17 - chaetiger metamorphosing larvae (N). Scale bars: 300 μm." figureDoi="10.3897/zookeys.1015.54387.figure9" httpUri="https://binary.pensoft.net/fig/505196" pageId="0" pageNumber="1">9C</figureCitation>
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), small non-ramified melanophore present in some individuals. Dorsal pigment consists of four rows of lateral and central pairs of pigment spots. Lateral and central pigments usually begin from chaetigers II and III, respectively. There pigment spots undergo expansion and contraction. Ventral pigment begins on chaetiger III, consists of paired bars on posterior border of each chaetiger. Anterior and posterior margin of prostomium have considerable brown pigment. Black pigment spots occur on sides of peristomium. Pygidium has black central spot. Gastrotrochs on chaetigers V and VII in 13-chaetiger larvae.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="1" type="remarks">
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<paragraph pageId="0" pageNumber="1">Remarks.</paragraph>
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<paragraph pageId="0" pageNumber="1">
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Adult individuals of this species were collected from muddy sediment in Gamo Lagoon in January, May, and December 2011, and April 2013. Adult morphology agrees with the description of
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<taxonomicName class="Polychaeta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. kempi" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="kempi">P. cf. kempi</taxonomicName>
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by
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<bibRefCitation DOI="https://doi.org/10.2108/zs160082" author="Abe, H" journalOrPublisher="Zoological Science" pageId="0" pageNumber="1" pagination="650 - 658" refId="B1" refString="Abe, H, Kondoh, T, Sato-Okoshi, W, 2016. First report of the morphology and rDNA sequences of two Pseudopolydora species (Annelida: Spionidae) from Japan. Zoological Science 33: 650 - 658, DOI: https://doi.org/10.2108/zs160082" title="First report of the morphology and rDNA sequences of two Pseudopolydora species (Annelida: Spionidae) from Japan." url="https://doi.org/10.2108/zs160082" volume="33" year="2016">Abe et al. (2016)</bibRefCitation>
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. Therefore, these individuals were referred to
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<taxonomicName class="Polychaeta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. kempi" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="kempi">P. cf. kempi</taxonomicName>
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. The 16S rRNA gene sequence obtained in the present study showed a 99.7% (305/306 bp) similarity with that of
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<taxonomicName class="Polychaeta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. kempi subsp. japonica" pageId="0" pageNumber="1" phylum="Annelida" rank="subSpecies" species="kempi" subSpecies="japonica">
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<emphasis italics="true" pageId="0" pageNumber="1">P. kempi japonica</emphasis>
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</taxonomicName>
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Imajima & Hartman, 1964 from Russia (MG460897) reported by
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<bibRefCitation DOI="doi.org/10.1007/s10530-020-02346-x" author="Radashevsky, VI" journalOrPublisher="Mediterranean Marine Science" pageId="0" pageNumber="1" refId="B166" refString="Radashevsky, VI, Malyar, VV, Pankova, VV, Gambi, MC, Giangrande, A, Keppel, E, Nygren, A, Al-Kandari, M, Carlton, JT, 2020b. Disentangling invasions in the sea: molecular analysis of a global polychaete species complex (Annelida: Spionidae: Pseudopolydora paucibranchiata). Biological Invasions 22: 3621-3644. ttps:// doi.org/10.1007/s10530-020-02346-x" title="Disentangling invasions in the sea: molecular analysis of a global polychaete species complex (Annelida: Spionidae: Pseudopolydora paucibranchiata). Biological Invasions 22: 3621 - 3644. ttps: //" url="doi.org/10.1007/s10530-020-02346-x" year="2020 b">Radashevsky et al. (2020b)</bibRefCitation>
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, indicating these two are same species. It will need to be clarified whether
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<taxonomicName class="Polychaeta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. kempi" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="kempi">
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<emphasis italics="true" pageId="0" pageNumber="1">P. kempi</emphasis>
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</taxonomicName>
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(type locality India) and subspecies
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<taxonomicName class="Polychaeta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. kempi subsp. japonica" pageId="0" pageNumber="1" phylum="Annelida" rank="subSpecies" species="kempi" subSpecies="japonica">
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<emphasis italics="true" pageId="0" pageNumber="1">P. kempi japonica</emphasis>
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</taxonomicName>
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(type locality Japan) are the same species. The larvae and adults were confirmed to 100% match using molecular data (Fig.
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<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Maximum Likelihood tree inferred from nuclear 18 S and mitochondrial 16 S rRNA gene sequences of spionids obtained from Japan in the present and previous studies (provided in Table 1). The gene sequences of adult and larval spionid polychaetes are indicated by solid squares and circles in front of each species name, respectively. SH-aLRT / approximate Bayes support / ultrafast bootstrap support values of ≥ 80 %, ≥ 0.95, ≥ 95 %, respectively are given beside the respective nodes. Nodes with red circles indicate triple high support values of SH-aLRT ≥ 80, approximate Bayes support ≥ 0.95, and ultrafast bootstrap support ≥ 95. The scale bar represents the number of substitutions per site. Sequences of Laonome sp. and Sabella pavonina Savigny, 1822 obtained from DDBJ / EMBL / GenBank were used for outgroup rooting." figureDoi="10.3897/zookeys.1015.54387.figure2" httpUri="https://binary.pensoft.net/fig/505188" pageId="0" pageNumber="1">2</figureCitation>
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).
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</paragraph>
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<paragraph pageId="0" pageNumber="1">
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Planktonic larvae of this species larger than 12-chaetiger stages were collected from Gamo Lagoon in August 2012. The larval morphology of this species observed in the present study agrees with the descriptions of
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<taxonomicName class="Polychaeta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. kempi" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="kempi">
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<emphasis italics="true" pageId="0" pageNumber="1">P. kempi</emphasis>
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</taxonomicName>
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by
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<bibRefCitation DOI="https://doi.org/10.2307/1540483" author="Blake, JA" journalOrPublisher="The Biological Bulletin" pageId="0" pageNumber="1" pagination="109 - 127" refId="B28" refString="Blake, JA, Woodwick, KH, 1975. Reproduction and larval development of Pseudopolydora paucibranchiata (Okuda) and Pseudopolydora kempi (Southern) (Polychaeta: Spionidae). The Biological Bulletin 149: 109 - 127, DOI: https://doi.org/10.2307/1540483" title="Reproduction and larval development of Pseudopolydora paucibranchiata (Okuda) and Pseudopolydora kempi (Southern) (Polychaeta: Spionidae)." url="https://doi.org/10.2307/1540483" volume="149" year="1975">Blake and Woodwick (1975)</bibRefCitation>
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and of
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<taxonomicName class="Polychaeta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. kempi" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="kempi">P. cf. kempi</taxonomicName>
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by
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<bibRefCitation DOI="https://doi.org/10.1080/07924259.2017.1318095" author="Kondoh, T" journalOrPublisher="Invertebrate Reproduction & Development" pageId="0" pageNumber="1" pagination="172 - 181" refId="B96" refString="Kondoh, T, Abe, H, Sato-Okoshi, W, 2017. Reproduction and larval development of two sympatric Pseudopolydora species (Annelida: Spionidae) in Japan. Invertebrate Reproduction & Development 61: 172 - 181, DOI: https://doi.org/10.1080/07924259.2017.1318095" title="Reproduction and larval development of two sympatric Pseudopolydora species (Annelida: Spionidae) in Japan." url="https://doi.org/10.1080/07924259.2017.1318095" volume="61" year="2017">Kondoh et al. (2017)</bibRefCitation>
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. These species have adelphophagic and lecithotrophic larval development, in which larvae feed on nurse eggs in brood capsules, hatch at a very late stage, and have a short pelagic life (
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<bibRefCitation DOI="https://doi.org/10.2307/1540483" author="Blake, JA" journalOrPublisher="The Biological Bulletin" pageId="0" pageNumber="1" pagination="109 - 127" refId="B28" refString="Blake, JA, Woodwick, KH, 1975. Reproduction and larval development of Pseudopolydora paucibranchiata (Okuda) and Pseudopolydora kempi (Southern) (Polychaeta: Spionidae). The Biological Bulletin 149: 109 - 127, DOI: https://doi.org/10.2307/1540483" title="Reproduction and larval development of Pseudopolydora paucibranchiata (Okuda) and Pseudopolydora kempi (Southern) (Polychaeta: Spionidae)." url="https://doi.org/10.2307/1540483" volume="149" year="1975">Blake and Woodwick 1975</bibRefCitation>
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;
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<bibRefCitation DOI="https://doi.org/10.1080/07924259.2017.1318095" author="Kondoh, T" journalOrPublisher="Invertebrate Reproduction & Development" pageId="0" pageNumber="1" pagination="172 - 181" refId="B96" refString="Kondoh, T, Abe, H, Sato-Okoshi, W, 2017. Reproduction and larval development of two sympatric Pseudopolydora species (Annelida: Spionidae) in Japan. Invertebrate Reproduction & Development 61: 172 - 181, DOI: https://doi.org/10.1080/07924259.2017.1318095" title="Reproduction and larval development of two sympatric Pseudopolydora species (Annelida: Spionidae) in Japan." url="https://doi.org/10.1080/07924259.2017.1318095" volume="61" year="2017">Kondoh et al. 2017</bibRefCitation>
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). Reproduction and larval development of these species under the name of
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<taxonomicName class="Polychaeta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. kempi" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="kempi">
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<emphasis italics="true" pageId="0" pageNumber="1">P. kempi</emphasis>
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</taxonomicName>
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and
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<taxonomicName class="Polychaeta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. kempi subsp. japonica" pageId="0" pageNumber="1" phylum="Annelida" rank="subSpecies" species="kempi" subSpecies="japonica">
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<emphasis italics="true" pageId="0" pageNumber="1">P. kempi japonica</emphasis>
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</taxonomicName>
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were also described by
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<bibRefCitation author="Srikrishnadhas, B" journalOrPublisher="PhD thesis, Almquist & Wicksells, Uppsala" pageId="0" pageNumber="1" refId="B205" refString="Srikrishnadhas, B, Ramamoorthi, K, 1977. Development of Pseudopolydora kempi (Southern, 1921) in the laboratory. Proceedings of the Symposium on Warm Water Zooplankton. Special Publication UNESCO/NIO, 671-677." title="Development of Pseudopolydora kempi (Southern, 1921) in the laboratory. Proceedings of the Symposium on Warm Water Zooplankton. Special Publication UNESCO / NIO, 671 - 677." year="1977">Srikrishnadhas and Ramamoorthi (1977)</bibRefCitation>
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,
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<bibRefCitation author="Myohara, M" journalOrPublisher="Inform Bulletin of Plankton Society of Japan" pageId="0" pageNumber="1" publicationUrl="http://hdl.handle.net/2115/27642" refId="B122" refString="Myohara, M, 1979. Reproduction and development of Pseudopolydora kempi japonica (Polychaeta: Spionidae), with special reference to the polar lobe formation. Journal of the Faculty of Science, Hokkaido University. Series 6, Zoology 21: 355-364. [figs 8, 9] http://hdl.handle.net/2115/27642" title="Reproduction and development of Pseudopolydora kempi japonica (Polychaeta: Spionidae), with special reference to the polar lobe formation. Journal of the Faculty of Science, Hokkaido University. Series 6, Zoology 21: 355 - 364. [figs 8, 9]" url="http://hdl.handle.net/2115/27642" year="1979">Myohara (1979)</bibRefCitation>
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, and
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<bibRefCitation author="Radashevsky, VI" journalOrPublisher="Soviet Journal of Marine Biology" pageId="0" pageNumber="1" pagination="39 - 46" refId="B142" refString="Radashevsky, VI, 1985. The larval development of the polychaete Pseudopolydora kempi japonica (Spionidae) in Peter the Great Bay of the Sea of Japan. Soviet Journal of Marine Biology 2: 39 - 46" title="The larval development of the polychaete Pseudopolydora kempi japonica (Spionidae) in Peter the Great Bay of the Sea of Japan." volume="2" year="1985">Radashevsky (1985)</bibRefCitation>
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. However, the larvae of species in these descriptions resemble those of
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<taxonomicName authorityName="Radashevsky & Hsieh" authorityYear="2000" class="Polychaeta" family="Spionidae" genus="Pseudopolydora" kingdom="Animalia" lsidName="Pseudopolydora reticulata" order="Spionida" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="reticulata">Pseudopolydora cf. reticulata</taxonomicName>
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Radashevsky & Hsieh, 2000 described by
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<bibRefCitation DOI="https://doi.org/10.1080/07924259.2017.1318095" author="Kondoh, T" journalOrPublisher="Invertebrate Reproduction & Development" pageId="0" pageNumber="1" pagination="172 - 181" refId="B96" refString="Kondoh, T, Abe, H, Sato-Okoshi, W, 2017. Reproduction and larval development of two sympatric Pseudopolydora species (Annelida: Spionidae) in Japan. Invertebrate Reproduction & Development 61: 172 - 181, DOI: https://doi.org/10.1080/07924259.2017.1318095" title="Reproduction and larval development of two sympatric Pseudopolydora species (Annelida: Spionidae) in Japan." url="https://doi.org/10.1080/07924259.2017.1318095" volume="61" year="2017">Kondoh et al. (2017)</bibRefCitation>
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and of the present study in having planktotrophic development without nurse eggs and distinct dorsal melanophores including a middorsal melanophore on the first chaetiger. The taxonomy of
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<taxonomicName class="Polychaeta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. kempi" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="kempi">
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<emphasis italics="true" pageId="0" pageNumber="1">P. kempi</emphasis>
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</taxonomicName>
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is unclear because its original description is quite brief, and the current location of type specimen is unknown (Radashevsky and Hsieh 2000). Therefore, studies resolving the taxonomy of
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<taxonomicName class="Polychaeta" higherTaxonomySource="GBIF,CoL" kingdom="Animalia" lsidName="P. kempi" pageId="0" pageNumber="1" phylum="Annelida" rank="species" species="kempi">
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<emphasis italics="true" pageId="0" pageNumber="1">P. kempi</emphasis>
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</taxonomicName>
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are necessary.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |