treatments-xml/data/03/FA/87/03FA87D4FF83FFBBD4CCFB99383E7C1A.xml
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<document id="7368370AB84D0FF1EA7E5F5FE698A935" ID-DOI="10.1080/00222933.2014.959577" ID-ISSN="1464-5262" ID-Zenodo-Dep="4607709" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1615896033113" checkinUser="carolina" docAuthor="Saito, Hiroshi &amp; Salvini-Plawen, Luitfried v." docDate="2014" docId="03FA87D4FF83FFBBD4CCFB99383E7C1A" docLanguage="en" docName="JNATHIST.48.45-48.2965-2983.pdf" docOrigin="Journal of Natural History 48 (45 - 48)" docSource="http://dx.doi.org/10.1080/00222933.2014.959577" docStyle="DocumentStyle:CD936EBDDF5274E0936345450CC2DAE4.5:JNatHist.2013-2015.journal_article.1cover" docStyleId="CD936EBDDF5274E0936345450CC2DAE4" docStyleName="JNatHist.2013-2015.journal_article.1cover" docStyleVersion="5" docTitle="Falcidens ryokuyomaruae Saito &amp; Salvini-Plawen 2014, sp. nov." docType="treatment" docUuid="9B299E07-7E1F-4C74-960D-597CC0D0F8D0" docUuidSource="ZooBank" docVersion="4" lastPageNumber="2976" masterDocId="FFC3FFACFF8AFFB6D538FFEC3B337E25" masterDocTitle="Four new species of the aplacophoran class Caudofoveata (Mollusca) from the southern Sea of Japan" masterLastPageNumber="2983" masterPageNumber="2965" pageNumber="2973" updateTime="1698886683508" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="600096057F5BAB02A93C14C646EE3F35">Four new species of the aplacophoran class Caudofoveata (Mollusca) from the southern Sea of Japan</mods:title>
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<mods:namePart id="364BD7B873520098C434B3A77BA1D875">Saito, Hiroshi</mods:namePart>
<mods:affiliation id="18FB09487C4BE246C2140E3788DAECB0">Department of Zoology, National Museum of Nature and Science, Tsukuba, Ibaraki, Japan;</mods:affiliation>
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<mods:namePart id="88E121DECDFB1DAE810D2B06A226C8A5">Salvini-Plawen, Luitfried v.</mods:namePart>
<mods:affiliation id="A3B163DB3AD80956526C1ACBE544B1C9">Integrative Zoologie, Universität Wien, Wien, Austria</mods:affiliation>
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<mods:title id="F188F251309695AE691BD57F0F8C787E">Journal of Natural History</mods:title>
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<mods:date id="2CFE9C31DBDB280E4DC3AEF95A4AAEA9">2014</mods:date>
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<subSubSection id="C3496549FF83FFBFD4CCFB9938477AA8" box="[500,884,1141,1165]" pageId="9" pageNumber="2973" type="nomenclature">
<paragraph id="8BEC36C2FF83FFBFD4CCFB9938477AA8" blockId="9.[500,884,1141,1197]" box="[500,884,1141,1165]" pageId="9" pageNumber="2973">
<heading id="D0A481AEFF83FFBFD4CCFB9938477AA8" box="[500,884,1141,1165]" centered="true" fontSize="10" level="2" pageId="9" pageNumber="2973" reason="2">
<taxonomicName id="4C534D41FF83FFBFD4CCFB9938227AA8" ID-CoL="3DT85" authority="Saito &amp; Salvini-Plawen, 2014" authorityName="Saito &amp; Salvini-Plawen" authorityYear="2014" box="[500,785,1141,1165]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="9" pageNumber="2973" phylum="Mollusca" rank="species" species="ryokuyomaruae" status="sp. nov.">
<emphasis id="B927EAD0FF83FFBFD4CCFB9938227AA8" bold="true" box="[500,785,1141,1165]" italics="true" pageId="9" pageNumber="2973">Falcidens ryokuyomaruae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21457ABFF83FFBFD622FB9938477AA8" box="[794,884,1141,1165]" pageId="9" pageNumber="2973" rank="species">sp. nov.</taxonomicNameLabel>
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<subSubSection id="C3496549FF83FFBFD751FB7939CC7A88" box="[617,767,1173,1197]" pageId="9" pageNumber="2973" type="description">
<paragraph id="8BEC36C2FF83FFBFD751FB7939CC7A88" blockId="9.[500,884,1141,1197]" box="[617,767,1173,1197]" pageId="9" pageNumber="2973">
(
<figureCitation id="13682A47FF83FFBFD749FB7939C57A88" box="[625,758,1173,1197]" captionStart-0="Figure 6" captionStart-1="Figure 7" captionStartId-0="10.[144,211,1403,1425]" captionStartId-1="11.[212,279,1410,1432]" captionTargetBox-0="[144,1104,168,1371]" captionTargetBox-1="[212,1172,168,1378]" captionTargetId-0="figure-47@10.[144,1104,168,1371]" captionTargetId-1="figure-70@11.[212,1172,168,1378]" captionTargetPageId-0="10" captionTargetPageId-1="11" captionText-0="Figure 6. Falcidens ryokuyomaruae sp. nov. (A) holotype, NSMT-Mo 78608, preserved condition; (B) paratype #8, NSMT-Mo 78616, specimen in life; (C) pedal shield of paratype #8; (D) radula of holotype. Scale bars: 1 mm for A; 0.5 mm for B; 200 µm for C; 100 µm for D." captionText-1="Figure 7. Falcidens ryokuyomaruae sp. nov. Sclerites of holotype. (A, B) peribuccal region; (C, D) in foregut region; (E, F) in anterior midgut sac region; (GI) in posterior midgut sac region; (J) in prepallial region; (K, L) at posterior margin of pallial region; (M) inside of posterior margin of pallial region. Scale bar: 100 µm." figureDoi-0="http://doi.org/10.5281/zenodo.4607721" figureDoi-1="http://doi.org/10.5281/zenodo.4607723" httpUri-0="https://zenodo.org/record/4607721/files/figure.png" httpUri-1="https://zenodo.org/record/4607723/files/figure.png" pageId="9" pageNumber="2973">Figures 67</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C3496549FF83FFBFD5ECFB073F767BF6" pageId="9" pageNumber="2973" type="materials_examined">
<paragraph id="8BEC36C2FF83FFBFD5ECFB073A557B26" blockId="9.[212,1172,1259,1355]" box="[212,358,1259,1283]" pageId="9" pageNumber="2973">
<heading id="D0A481AEFF83FFBFD5ECFB073A557B26" box="[212,358,1259,1283]" fontSize="10" level="3" pageId="9" pageNumber="2973" reason="5">
<emphasis id="B927EAD0FF83FFBFD5ECFB073A557B26" box="[212,358,1259,1283]" italics="true" pageId="9" pageNumber="2973">Type locality</emphasis>
</heading>
</paragraph>
<paragraph id="8BEC36C2FF83FFBFD5ECFAFF3F257B6E" blockId="9.[212,1172,1259,1355]" pageId="9" pageNumber="2973">
<materialsCitation id="3B3B3C9FFF83FFBFD5ECFAFF3F257B6E" country="Japan" county="southern Sea" elevation="101" latitude="35.7495" location="Western Wakasa Bay" longLatPrecision="11" longitude="135.37334" municipality="Tango Peninsula" pageId="9" pageNumber="2973" specimenCount="1">
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,
<locationDeviation id="9A5E2FE0FF83FFBFD4D8FAFF38C17B0E" box="[480,1010,1299,1323]" firstLocation="Kanmuri-jima Island" pageId="9" pageNumber="2973" secondLocation="Kyogasaki">between Kanmuri-jima Island and Kyogasaki</locationDeviation>
point,
<collectingMunicipality id="6B88ACB8FF83FFBFD173FAFF3A707B6E" pageId="9" pageNumber="2973">Tango Peninsula</collectingMunicipality>
,
<collectingCounty id="628D4E4EFF83FFBFD468FADF3AD17B6E" box="[336,482,1331,1355]" pageId="9" pageNumber="2973">southern Sea</collectingCounty>
of
<collectingCountry id="F3447652FF83FFBFD733FADF39627B6E" box="[523,593,1331,1355]" name="Japan" pageId="9" pageNumber="2973">Japan</collectingCountry>
,
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35°44.97
<emphasis id="B927EAD0FF83FFBFD787FADF39F67B6E" bold="true" box="[703,709,1331,1355]" italics="true" pageId="9" pageNumber="2973"></emphasis>
N
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,
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135°22.40
<emphasis id="B927EAD0FF83FFBFD65BFADF385A7B6E" bold="true" box="[867,873,1331,1355]" italics="true" pageId="9" pageNumber="2973"></emphasis>
E
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<heading id="D0A481AEFF83FFBFD5ECFA783AB57B89" box="[212,390,1428,1452]" fontSize="10" level="3" pageId="9" pageNumber="2973" reason="5">
<emphasis id="B927EAD0FF83FFBFD5ECFA783AB57B89" box="[212,390,1428,1452]" italics="true" pageId="9" pageNumber="2973">Type depository</emphasis>
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</paragraph>
<paragraph id="8BEC36C2FF83FFBFD5ECFA573F767BF6" blockId="9.[212,1093,1428,1491]" box="[212,1093,1467,1491]" pageId="9" pageNumber="2973">Department of Zoology, National Museum of Nature and Science, Tsukuba.</paragraph>
</subSubSection>
<subSubSection id="C3496549FF83FFBFD5ECF9F0391178BE" pageId="9" pageNumber="2973" type="etymology">
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<heading id="D0A481AEFF83FFBFD5ECF9F03A7E7811" box="[212,333,1564,1588]" fontSize="10" level="3" pageId="9" pageNumber="2973" reason="5">
<emphasis id="B927EAD0FF83FFBFD5ECF9F03A7E7811" box="[212,333,1564,1588]" italics="true" pageId="9" pageNumber="2973">Etymology</emphasis>
</heading>
</paragraph>
<paragraph id="8BEC36C2FF83FFBFD5ECF9AF391178BE" blockId="9.[212,1172,1564,1691]" pageId="9" pageNumber="2973">
This species is named after the research and training vessel Ryokuyo-maru of the Maizuru Fisheries Research Station,
<collectingRegion id="4997F820FF83FFBFD741F98F39F2785E" box="[633,705,1635,1659]" country="Japan" name="Kyoto" pageId="9" pageNumber="2973">Kyoto</collectingRegion>
University, which collected all the specimens examined in this paper.
</paragraph>
</subSubSection>
<caption id="DF2C664AFF80FFBCD5A8FA973F7F7BE9" ID-DOI="http://doi.org/10.5281/zenodo.4607721" ID-Zenodo-Dep="4607721" httpUri="https://zenodo.org/record/4607721/files/figure.png" pageId="10" pageNumber="2974" startId="10.[144,211,1403,1425]" targetBox="[144,1104,168,1371]" targetPageId="10">
<paragraph id="8BEC36C2FF80FFBCD5A8FA973F7F7BE9" blockId="10.[144,1104,1403,1484]" pageId="10" pageNumber="2974">
Figure 6.
<taxonomicName id="4C534D41FF80FFBCD5C2FA973AC87BB5" authority="Saito &amp; Salvini-Plawen, 2014" authorityName="Saito &amp; Salvini-Plawen" authorityYear="2014" box="[250,507,1403,1424]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="10" pageNumber="2974" phylum="Mollusca" rank="species" species="ryokuyomaruae" status="sp. nov.">
<emphasis id="B927EAD0FF80FFBCD5C2FA973AC87BB5" box="[250,507,1403,1424]" italics="true" pageId="10" pageNumber="2974">Falcidens ryokuyomaruae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21457ABFF80FFBCD73CFA9739657BB4" box="[516,598,1403,1425]" pageId="10" pageNumber="2974" rank="species">sp. nov.</taxonomicNameLabel>
(A) holotype, NSMT-Mo 78608, preserved condition; (B) paratype #8, NSMT-Mo 78616, specimen in life; (C) pedal shield of paratype #8; (D) radula of holotype. Scale bars: 1 mm for A; 0.5 mm for B; 200 µm for C; 100 µm for D.
</paragraph>
</caption>
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<emphasis id="B927EAD0FF80FFBCD5A8F9F73A507816" box="[144,355,1563,1587]" italics="true" pageId="10" pageNumber="2974">Material examined</emphasis>
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<typeStatus id="54E88860FF80FFBCD5A8F9AF3BC9787E" box="[144,250,1603,1627]" pageId="10" pageNumber="2974" type="holotype">Holotype</typeStatus>
.
</emphasis>
NSMT-Mo 78608, ethanol preserved specimen, a part of sclerites and radula are mounted on slide glasses, body length
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35°44.97
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135°22.40
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<typeStatus id="54E88860FF80FFBCD726F96F39BE78BE" box="[542,653,1667,1691]" pageId="10" pageNumber="2974" type="paratype">Paratypes</typeStatus>
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. #13: NSMT-Mo 7860978611, body length 4.67.0 mm, from type locality; #46: NSMT-Mo 7861278614, body length 4.0
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35°39.20
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135°21.47
<emphasis id="B927EAD0FF81FFBDD741F9AF394C787E" bold="true" box="[633,639,1603,1627]" italics="true" pageId="11" pageNumber="2975"></emphasis>
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<date id="FFED1002FF81FFBDD7C5F9AF38E3787E" box="[765,976,1603,1627]" pageId="11" pageNumber="2975" value="2010-09-02">2 September 2010</date>
; #7: NSMT-Mo 78615, body length
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,
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35°34.59
<emphasis id="B927EAD0FF81FFBDD7BAF98F39BB785E" bold="true" box="[642,648,1635,1659]" italics="true" pageId="11" pageNumber="2975"></emphasis>
N
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,
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135°20.32
<emphasis id="B927EAD0FF81FFBDD61FF98F381E785E" bold="true" box="[807,813,1635,1659]" italics="true" pageId="11" pageNumber="2975"></emphasis>
E
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,
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,
<date id="FFED1002FF81FFBDD6F3F98F3F6C785E" box="[971,1119,1635,1659]" pageId="11" pageNumber="2975" value="2012-07-10">10 July 2012</date>
; #8: NSMT-Mo 78616, body length
<quantity id="4CAB9B27FF81FFBDD707F96F39AB78BE" box="[575,664,1667,1691]" metricMagnitude="-3" metricUnit="m" metricValue="4.8" pageId="11" pageNumber="2975" unit="mm" value="4.8">4.8 mm</quantity>
,
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35°45.03
<emphasis id="B927EAD0FF81FFBDD63DF96F383878BE" bold="true" box="[773,779,1667,1691]" italics="true" pageId="11" pageNumber="2975"></emphasis>
N
</geoCoordinate>
,
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135°20.21
<emphasis id="B927EAD0FF81FFBDD690F96F389D78BE" bold="true" box="[936,942,1667,1691]" italics="true" pageId="11" pageNumber="2975"></emphasis>
E
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,
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, 13 August
</paragraph>
<caption id="DF2C664AFF81FFBDD5ECFA6E39C47BD5" ID-DOI="http://doi.org/10.5281/zenodo.4607723" ID-Zenodo-Dep="4607723" httpUri="https://zenodo.org/record/4607723/files/figure.png" pageId="11" pageNumber="2975" startId="11.[212,279,1410,1432]" targetBox="[212,1172,168,1378]" targetPageId="11">
<paragraph id="8BEC36C2FF81FFBDD5ECFA6E39C47BD5" blockId="11.[212,1172,1410,1520]" pageId="11" pageNumber="2975">
Figure 7.
<taxonomicName id="4C534D41FF81FFBDD407FA6E39727BB2" authority="Saito &amp; Salvini-Plawen, 2014" authorityName="Saito &amp; Salvini-Plawen" authorityYear="2014" box="[319,577,1410,1431]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="11" pageNumber="2975" phylum="Mollusca" rank="species" species="ryokuyomaruae" status="sp. nov.">
<emphasis id="B927EAD0FF81FFBDD407FA6E39727BB2" box="[319,577,1410,1431]" italics="true" pageId="11" pageNumber="2975">Falcidens ryokuyomaruae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21457ABFF81FFBDD773FA6E39AC7BBD" box="[587,671,1410,1432]" pageId="11" pageNumber="2975" rank="species">sp. nov.</taxonomicNameLabel>
Sclerites of holotype. (A, B) peribuccal region; (C, D) in foregut region; (E, F) in anterior midgut sac region; (GI) in posterior midgut sac region; (J) in prepallial region; (K, L) at posterior margin of pallial region; (M) inside of posterior margin of pallial region. Scale bar: 100 µm.
</paragraph>
</caption>
<paragraph id="8BEC36C2FF86FFBAD5A8FF4439217EC5" blockId="12.[144,1104,168,224]" pageId="12" pageNumber="2976">
2012; #912: NSMT-Mo 7861778620, body length 4.37.0 mm,
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35°45.26
<emphasis id="B927EAD0FF86FFBAD6DFFF4438DE7EE5" bold="true" box="[999,1005,168,192]" italics="true" pageId="12" pageNumber="2976"></emphasis>
N
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,
<geoCoordinate id="EE675005FF86FFBAD125FF443BDC7EC5" degrees="135" direction="east" minutes="20.48" orientation="longitude" pageId="12" pageNumber="2976" precision="9" value="135.34134">
135° 20.48
<emphasis id="B927EAD0FF86FFBAD5F4FF243BE17EC5" bold="true" box="[204,210,200,224]" italics="true" pageId="12" pageNumber="2976"></emphasis>
E
</geoCoordinate>
,
<quantity id="4CAB9B27FF86FFBAD5C4FF243A527EC5" box="[252,353,200,224]" metricMagnitude="1" metricUnit="m" metricValue="9.85" metricValueMax="9.9" metricValueMin="9.8" pageId="12" pageNumber="2976" unit="m" value="98.5" valueMax="99.0" valueMin="98.0">9899 m</quantity>
,
<date id="FFED1002FF86FFBAD456FF24393D7EC5" box="[366,526,200,224]" pageId="12" pageNumber="2976" value="2013-04-25">25 April 2013</date>
.
</paragraph>
</subSubSection>
<subSubSection id="C3496549FF86FFBAD5A8FECC38037BB9" pageId="12" pageNumber="2976" type="description">
<paragraph id="8BEC36C2FF86FFBAD5A8FECC3AA77F1D" blockId="12.[144,1104,288,1245]" box="[144,404,288,312]" pageId="12" pageNumber="2976">
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<emphasis id="B927EAD0FF86FFBAD5A8FECC3AA77F1D" box="[144,404,288,312]" italics="true" pageId="12" pageNumber="2976">
Description of
<typeStatus id="54E88860FF86FFBAD40EFECC3AA77F1D" box="[310,404,288,312]" pageId="12" pageNumber="2976" type="holotype">holotype</typeStatus>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BEC36C2FF86FFBAD5A8FEA43BE87FFA" blockId="12.[144,1104,288,1245]" pageId="12" pageNumber="2976">
Animal small,
<quantity id="4CAB9B27FF86FFBAD406FEA43AA47F45" box="[318,407,328,352]" metricMagnitude="-3" metricUnit="m" metricValue="6.4" pageId="12" pageNumber="2976" unit="mm" value="6.4">6.4 mm</quantity>
long, anterior body stout,
<emphasis id="B927EAD0FF86FFBAD7E1FEA439D67F45" box="[729,741,328,352]" italics="true" pageId="12" pageNumber="2976">c</emphasis>
.
<quantity id="4CAB9B27FF86FFBAD7D0FEA438767F45" box="[744,837,328,352]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" pageId="12" pageNumber="2976" unit="mm" value="0.9">0.9 mm</quantity>
in diameter in midgut region, posterior body slender, tail-like,
<emphasis id="B927EAD0FF86FFBAD760FE8439577FA5" box="[600,612,360,384]" italics="true" pageId="12" pageNumber="2976">c</emphasis>
.
<quantity id="4CAB9B27FF86FFBAD75FFE8439F27FA5" box="[615,705,360,384]" metricMagnitude="-4" metricUnit="m" metricValue="3.0" pageId="12" pageNumber="2976" unit="mm" value="0.3">0.3 mm</quantity>
in prepallial region, terminating in tassel with long needle-like sclerites (
<figureCitation id="13682A47FF86FFBAD707FE6B39847FBA" box="[575,695,391,415]" captionStart="Figure 6" captionStartId="10.[144,211,1403,1425]" captionTargetBox="[144,1104,168,1371]" captionTargetId="figure-47@10.[144,1104,168,1371]" captionTargetPageId="10" captionText="Figure 6. Falcidens ryokuyomaruae sp. nov. (A) holotype, NSMT-Mo 78608, preserved condition; (B) paratype #8, NSMT-Mo 78616, specimen in life; (C) pedal shield of paratype #8; (D) radula of holotype. Scale bars: 1 mm for A; 0.5 mm for B; 200 µm for C; 100 µm for D." figureDoi="http://doi.org/10.5281/zenodo.4607721" httpUri="https://zenodo.org/record/4607721/files/figure.png" pageId="12" pageNumber="2976">Figure 6A</figureCitation>
). Boundary of foregut and midgut regions demarcated by groove. Pedal shield surrounding mouth located dorsally to centre.
</paragraph>
<paragraph id="8BEC36C2FF86FFBAD582FE0B3F637DF8" blockId="12.[144,1104,288,1245]" pageId="12" pageNumber="2976">
Dominant sclerites covering whole surface of midgut and midgut sac regions lanceolate with flared base, up to
<quantity id="4CAB9B27FF86FFBAD70BFDEB39BE7C3A" box="[563,653,519,543]" metricMagnitude="-1" metricUnit="m" metricValue="1.35" pageId="12" pageNumber="2976" unit="mm" value="135.0">135 µm</quantity>
long ×
<quantity id="4CAB9B27FF86FFBAD7C1FDEB38767C3A" box="[761,837,519,543]" metricMagnitude="-2" metricUnit="m" metricValue="4.0" pageId="12" pageNumber="2976" unit="mm" value="40.0">40 µm</quantity>
wide, curved towards body, bluntly pointed at tip, broadly keeled on midline (seen as dark axial band in
<figureCitation id="13682A47FF86FFBAD5A8FDAB3A117C7A" box="[144,290,583,607]" captionStart="Figure 7" captionStartId="11.[212,279,1410,1432]" captionTargetBox="[212,1172,168,1378]" captionTargetId="figure-70@11.[212,1172,168,1378]" captionTargetPageId="11" captionText="Figure 7. Falcidens ryokuyomaruae sp. nov. Sclerites of holotype. (A, B) peribuccal region; (C, D) in foregut region; (E, F) in anterior midgut sac region; (GI) in posterior midgut sac region; (J) in prepallial region; (K, L) at posterior margin of pallial region; (M) inside of posterior margin of pallial region. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.4607723" httpUri="https://zenodo.org/record/4607723/files/figure.png" pageId="12" pageNumber="2976">Figure 7E, F</figureCitation>
), with one longitudinal groove on each side of median keel; grooves are bifurcated near the base (
<figureCitation id="13682A47FF86FFBAD48DFD8B39797C5A" box="[437,586,615,639]" captionStart="Figure 7" captionStartId="11.[212,279,1410,1432]" captionTargetBox="[212,1172,168,1378]" captionTargetId="figure-70@11.[212,1172,168,1378]" captionTargetPageId="11" captionText="Figure 7. Falcidens ryokuyomaruae sp. nov. Sclerites of holotype. (A, B) peribuccal region; (C, D) in foregut region; (E, F) in anterior midgut sac region; (GI) in posterior midgut sac region; (J) in prepallial region; (K, L) at posterior margin of pallial region; (M) inside of posterior margin of pallial region. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.4607723" httpUri="https://zenodo.org/record/4607723/files/figure.png" pageId="12" pageNumber="2976">Figure 7E, F</figureCitation>
). Sclerites from foregut region to midgut sac region with or without basal notch. Sclerites of prepallial region similar to dominant sclerites, but less flared in basal portion (
<figureCitation id="13682A47FF86FFBAD74BFD4A383B7C9B" box="[627,776,678,702]" captionStart="Figure 7" captionStartId="11.[212,279,1410,1432]" captionTargetBox="[212,1172,168,1378]" captionTargetId="figure-70@11.[212,1172,168,1378]" captionTargetPageId="11" captionText="Figure 7. Falcidens ryokuyomaruae sp. nov. Sclerites of holotype. (A, B) peribuccal region; (C, D) in foregut region; (E, F) in anterior midgut sac region; (GI) in posterior midgut sac region; (J) in prepallial region; (K, L) at posterior margin of pallial region; (M) inside of posterior margin of pallial region. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.4607723" httpUri="https://zenodo.org/record/4607723/files/figure.png" pageId="12" pageNumber="2976">Figure 7G, I</figureCitation>
), occasionally parallel sided (
<figureCitation id="13682A47FF86FFBAD5A0FD2A3A267CFB" box="[152,277,710,734]" captionStart="Figure 7" captionStartId="11.[212,279,1410,1432]" captionTargetBox="[212,1172,168,1378]" captionTargetId="figure-70@11.[212,1172,168,1378]" captionTargetPageId="11" captionText="Figure 7. Falcidens ryokuyomaruae sp. nov. Sclerites of holotype. (A, B) peribuccal region; (C, D) in foregut region; (E, F) in anterior midgut sac region; (GI) in posterior midgut sac region; (J) in prepallial region; (K, L) at posterior margin of pallial region; (M) inside of posterior margin of pallial region. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.4607723" httpUri="https://zenodo.org/record/4607723/files/figure.png" pageId="12" pageNumber="2976">Figure 7H</figureCitation>
). Sclerites of peribuccal region minute, elongate oval, flat,
<emphasis id="B927EAD0FF86FFBAD6C8FD2B38CF7CFA" box="[1008,1020,711,735]" italics="true" pageId="12" pageNumber="2976">c</emphasis>
.
<quantity id="4CAB9B27FF86FFBAD6C7FD2A3F637CFB" box="[1023,1104,710,734]" metricMagnitude="-2" metricUnit="m" metricValue="4.0" pageId="12" pageNumber="2976" unit="mm" value="40.0">40 µm</quantity>
long ×
<quantity id="4CAB9B27FF86FFBAD5DFFD0A3A037CDB" box="[231,304,742,766]" metricMagnitude="-2" metricUnit="m" metricValue="1.4" pageId="12" pageNumber="2976" unit="mm" value="14.0">14 µm</quantity>
wide (
<figureCitation id="13682A47FF86FFBAD4B9FD0A39287CDB" box="[385,539,742,766]" captionStart="Figure 7" captionStartId="11.[212,279,1410,1432]" captionTargetBox="[212,1172,168,1378]" captionTargetId="figure-70@11.[212,1172,168,1378]" captionTargetPageId="11" captionText="Figure 7. Falcidens ryokuyomaruae sp. nov. Sclerites of holotype. (A, B) peribuccal region; (C, D) in foregut region; (E, F) in anterior midgut sac region; (GI) in posterior midgut sac region; (J) in prepallial region; (K, L) at posterior margin of pallial region; (M) inside of posterior margin of pallial region. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.4607723" httpUri="https://zenodo.org/record/4607723/files/figure.png" pageId="12" pageNumber="2976">Figure 7A, B</figureCitation>
). Sclerites in foregut region short, up to
<quantity id="4CAB9B27FF86FFBAD6C2FD0A3F637CDB" box="[1018,1104,742,766]" metricMagnitude="-1" metricUnit="m" metricValue="1.2" pageId="12" pageNumber="2976" unit="mm" value="120.0">120 µm</quantity>
long ×
<quantity id="4CAB9B27FF86FFBAD5DDFCEA3A1F7D3B" box="[229,300,774,798]" metricMagnitude="-2" metricUnit="m" metricValue="4.5" pageId="12" pageNumber="2976" unit="mm" value="45.0">45 µm</quantity>
wide, slightly curved towards body, round at top, flared at base, with weak waist, keeled with one or two narrow grooves at both sides of keel (
<figureCitation id="13682A47FF86FFBAD6EDFCCA3B957D7B" captionStart="Figure 7" captionStartId="11.[212,279,1410,1432]" captionTargetBox="[212,1172,168,1378]" captionTargetId="figure-70@11.[212,1172,168,1378]" captionTargetPageId="11" captionText="Figure 7. Falcidens ryokuyomaruae sp. nov. Sclerites of holotype. (A, B) peribuccal region; (C, D) in foregut region; (E, F) in anterior midgut sac region; (GI) in posterior midgut sac region; (J) in prepallial region; (K, L) at posterior margin of pallial region; (M) inside of posterior margin of pallial region. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.4607723" httpUri="https://zenodo.org/record/4607723/files/figure.png" pageId="12" pageNumber="2976">Figure 7C, D</figureCitation>
). Sclerites of posterior prepallial region rather broad, attaining
<quantity id="4CAB9B27FF86FFBAD65DFCAA38847D7B" box="[869,951,838,862]" metricMagnitude="-1" metricUnit="m" metricValue="1.2" pageId="12" pageNumber="2976" unit="mm" value="120.0">120 µm</quantity>
long ×
<quantity id="4CAB9B27FF86FFBAD133FCAA3F637D7B" box="[1035,1104,838,862]" metricMagnitude="-2" metricUnit="m" metricValue="3.5" pageId="12" pageNumber="2976" unit="mm" value="35.0">35 µm</quantity>
wide, slightly concave on medial surface, pointed at tip, nearly parallel sided, with several fine grooves (
<figureCitation id="13682A47FF86FFBAD4B8FC6A3ADF7DBB" box="[384,492,902,926]" captionStart="Figure 7" captionStartId="11.[212,279,1410,1432]" captionTargetBox="[212,1172,168,1378]" captionTargetId="figure-70@11.[212,1172,168,1378]" captionTargetPageId="11" captionText="Figure 7. Falcidens ryokuyomaruae sp. nov. Sclerites of holotype. (A, B) peribuccal region; (C, D) in foregut region; (E, F) in anterior midgut sac region; (GI) in posterior midgut sac region; (J) in prepallial region; (K, L) at posterior margin of pallial region; (M) inside of posterior margin of pallial region. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.4607723" httpUri="https://zenodo.org/record/4607723/files/figure.png" pageId="12" pageNumber="2976">Figure 7J</figureCitation>
). Posterior margin of pallial region with long needles slightly flared in the proximal half, up to
<quantity id="4CAB9B27FF86FFBAD75FFC4A39887D9B" box="[615,699,934,958]" metricMagnitude="-1" metricUnit="m" metricValue="2.8" pageId="12" pageNumber="2976" unit="mm" value="280.0">280 µm</quantity>
long ×
<quantity id="4CAB9B27FF86FFBAD62EFC4A386F7D9B" box="[790,860,934,958]" metricMagnitude="-2" metricUnit="m" metricValue="1.6" pageId="12" pageNumber="2976" unit="mm" value="16.0">16 µm</quantity>
wide (
<figureCitation id="13682A47FF86FFBAD691FC4A3F737D9B" box="[937,1088,934,958]" captionStart="Figure 7" captionStartId="11.[212,279,1410,1432]" captionTargetBox="[212,1172,168,1378]" captionTargetId="figure-70@11.[212,1172,168,1378]" captionTargetPageId="11" captionText="Figure 7. Falcidens ryokuyomaruae sp. nov. Sclerites of holotype. (A, B) peribuccal region; (C, D) in foregut region; (E, F) in anterior midgut sac region; (GI) in posterior midgut sac region; (J) in prepallial region; (K, L) at posterior margin of pallial region; (M) inside of posterior margin of pallial region. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.4607723" httpUri="https://zenodo.org/record/4607723/files/figure.png" pageId="12" pageNumber="2976">Figure 7K, L</figureCitation>
). Sclerites inside of posterior margin fine needles
<quantity id="4CAB9B27FF86FFBAD79DFC2939D87DF8" box="[677,747,965,989]" metricMagnitude="-2" metricUnit="m" metricValue="8.0" pageId="12" pageNumber="2976" unit="mm" value="80.0">80 µm</quantity>
long ×
<quantity id="4CAB9B27FF86FFBAD67BFC29384F7DF8" box="[835,892,965,989]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="12" pageNumber="2976" unit="mm" value="8.0">8 µm</quantity>
wide (
<figureCitation id="13682A47FF86FFBAD6FFFC293F0C7DF8" box="[967,1087,965,989]" captionStart="Figure 7" captionStartId="11.[212,279,1410,1432]" captionTargetBox="[212,1172,168,1378]" captionTargetId="figure-70@11.[212,1172,168,1378]" captionTargetPageId="11" captionText="Figure 7. Falcidens ryokuyomaruae sp. nov. Sclerites of holotype. (A, B) peribuccal region; (C, D) in foregut region; (E, F) in anterior midgut sac region; (GI) in posterior midgut sac region; (J) in prepallial region; (K, L) at posterior margin of pallial region; (M) inside of posterior margin of pallial region. Scale bar: 100 µm." figureDoi="http://doi.org/10.5281/zenodo.4607723" httpUri="https://zenodo.org/record/4607723/files/figure.png" pageId="12" pageNumber="2976">Figure 7M</figureCitation>
).
</paragraph>
<paragraph id="8BEC36C2FF86FFBAD582FC093A607AF8" blockId="12.[144,1104,288,1245]" pageId="12" pageNumber="2976">
Radula of single pair of sclerotized sickle-shaped teeth,
<emphasis id="B927EAD0FF86FFBAD60EFC0A38717DDB" box="[822,834,998,1022]" italics="true" pageId="12" pageNumber="2976">c</emphasis>
.
<quantity id="4CAB9B27FF86FFBAD67DFC0938A37DD8" box="[837,912,997,1021]" metricMagnitude="-2" metricUnit="m" metricValue="4.0" pageId="12" pageNumber="2976" unit="mm" value="40.0">40 µm</quantity>
long, with small triangular thickening in proximal half, socketed by symphysis to apical notch of basal plate (
<figureCitation id="13682A47FF86FFBAD5E1FBC93A637A18" box="[217,336,1061,1085]" captionStart="Figure 6" captionStartId="10.[144,211,1403,1425]" captionTargetBox="[144,1104,168,1371]" captionTargetId="figure-47@10.[144,1104,168,1371]" captionTargetPageId="10" captionText="Figure 6. Falcidens ryokuyomaruae sp. nov. (A) holotype, NSMT-Mo 78608, preserved condition; (B) paratype #8, NSMT-Mo 78616, specimen in life; (C) pedal shield of paratype #8; (D) radula of holotype. Scale bars: 1 mm for A; 0.5 mm for B; 200 µm for C; 100 µm for D." figureDoi="http://doi.org/10.5281/zenodo.4607721" httpUri="https://zenodo.org/record/4607721/files/figure.png" pageId="12" pageNumber="2976">Figure 6D</figureCitation>
). Basal plate wedge-shaped,
<quantity id="4CAB9B27FF86FFBAD798FBC939C67A18" box="[672,757,1061,1085]" metricMagnitude="-1" metricUnit="m" metricValue="1.9" pageId="12" pageNumber="2976" unit="mm" value="190.0">190 µm</quantity>
long,
<quantity id="4CAB9B27FF86FFBAD679FBC938B97A18" box="[833,906,1061,1085]" metricMagnitude="-2" metricUnit="m" metricValue="6.5" pageId="12" pageNumber="2976" unit="mm" value="65.0">65 µm</quantity>
in frontal width,
<quantity id="4CAB9B27FF86FFBAD5A8FBA93BE67A78" box="[144,213,1093,1117]" metricMagnitude="-2" metricUnit="m" metricValue="3.5" pageId="12" pageNumber="2976" unit="mm" value="35.0">35 µm</quantity>
in lateral width, sclerotized at distal one-third. Cuticular lateral supports about half length of entire radula apparatus, substructured into three lobes at each side. Slightly sclerotized cuticular lining (transverse bar: as shown in
<bibRefCitation id="EFC24B33FF86FFBAD65CFB693F7B7AB8" author="Salvini-Plawen Lv" box="[868,1096,1157,1181]" pageId="12" pageNumber="2976" pagination="1 - 55" refId="ref7056" refString="Salvini-Plawen Lv. 1975. Mollusca: Caudofoveata. Marine invertebrates of Scandinavia (4). Oslo: Scandinavian University Books; p. 1 - 55." type="book chapter" year="1975">Salvini-Plawen 1975</bibRefCitation>
, figure 7A, hatched portion between tips of lateral supports) of the distal radular pit (
<figureCitation id="13682A47FF86FFBAD5A0FB293A3D7AF8" box="[152,270,1221,1245]" captionStart="Figure 6" captionStartId="10.[144,211,1403,1425]" captionTargetBox="[144,1104,168,1371]" captionTargetId="figure-47@10.[144,1104,168,1371]" captionTargetPageId="10" captionText="Figure 6. Falcidens ryokuyomaruae sp. nov. (A) holotype, NSMT-Mo 78608, preserved condition; (B) paratype #8, NSMT-Mo 78616, specimen in life; (C) pedal shield of paratype #8; (D) radula of holotype. Scale bars: 1 mm for A; 0.5 mm for B; 200 µm for C; 100 µm for D." figureDoi="http://doi.org/10.5281/zenodo.4607721" httpUri="https://zenodo.org/record/4607721/files/figure.png" pageId="12" pageNumber="2976">Figure 6D</figureCitation>
, left).
</paragraph>
<paragraph id="8BEC36C2FF86FFBAD5A8FAF139067B10" blockId="12.[144,1103,1309,1436]" box="[144,565,1309,1333]" pageId="12" pageNumber="2976">
<heading id="D0A481AEFF86FFBAD5A8FAF139067B10" box="[144,565,1309,1333]" fontSize="10" level="3" pageId="12" pageNumber="2976" reason="5">
<emphasis id="B927EAD0FF86FFBAD5A8FAF139067B10" box="[144,565,1309,1333]" italics="true" pageId="12" pageNumber="2976">
Additional description from
<typeStatus id="54E88860FF86FFBAD4F2FAF139067B10" box="[458,565,1309,1333]" pageId="12" pageNumber="2976" type="paratype">paratypes</typeStatus>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BEC36C2FF86FFBAD5A8FAA838037BB9" blockId="12.[144,1103,1309,1436]" pageId="12" pageNumber="2976">
Colour of living animals light brown with dark brownish maculation in anterior body, which is the colouration of the internal organs observable through the translucent body wall, dark brown in pedal shield (
<figureCitation id="13682A47FF86FFBAD7B3FA6838137BB9" box="[651,800,1412,1436]" captionStart="Figure 6" captionStartId="10.[144,211,1403,1425]" captionTargetBox="[144,1104,168,1371]" captionTargetId="figure-47@10.[144,1104,168,1371]" captionTargetPageId="10" captionText="Figure 6. Falcidens ryokuyomaruae sp. nov. (A) holotype, NSMT-Mo 78608, preserved condition; (B) paratype #8, NSMT-Mo 78616, specimen in life; (C) pedal shield of paratype #8; (D) radula of holotype. Scale bars: 1 mm for A; 0.5 mm for B; 200 µm for C; 100 µm for D." figureDoi="http://doi.org/10.5281/zenodo.4607721" httpUri="https://zenodo.org/record/4607721/files/figure.png" pageId="12" pageNumber="2976">Figure 6B, C</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C3496549FF86FFBBD5A8FA30383E7C1A" lastPageId="13" lastPageNumber="2977" pageId="12" pageNumber="2976" type="discussion">
<paragraph id="8BEC36C2FF86FFBAD5A8FA303BC17BD1" blockId="12.[144,1104,1500,1691]" box="[144,242,1500,1524]" pageId="12" pageNumber="2976">
<heading id="D0A481AEFF86FFBAD5A8FA303BC17BD1" box="[144,242,1500,1524]" fontSize="10" level="3" pageId="12" pageNumber="2976" reason="5">
<emphasis id="B927EAD0FF86FFBAD5A8FA303BC17BD1" box="[144,242,1500,1524]" italics="true" pageId="12" pageNumber="2976">Remarks</emphasis>
</heading>
</paragraph>
<paragraph id="8BEC36C2FF86FFBBD5A8F9E8383E7C1A" blockId="12.[144,1104,1500,1691]" lastBlockId="13.[212,1172,168,575]" lastPageId="13" lastPageNumber="2977" pageId="12" pageNumber="2976">
This species shares with several other
<taxonomicName id="4C534D41FF86FFBAD770F9E839817839" authorityName="Salvini-Plawen" authorityYear="1968" box="[584,690,1540,1564]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="12" pageNumber="2976" phylum="Mollusca" rank="genus">
<emphasis id="B927EAD0FF86FFBAD770F9E839817839" box="[584,690,1540,1564]" italics="true" pageId="12" pageNumber="2976">Falcidens</emphasis>
</taxonomicName>
species a slender, tail-like posterior body; these include
<taxonomicName id="4C534D41FF86FFBAD441F9C839CC7819" authority="(Kowalevsky, 1901)" baseAuthorityName="Kowalevsky" baseAuthorityYear="1901" box="[377,767,1572,1596]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="12" pageNumber="2976" phylum="Mollusca" rank="species" species="gutturosus">
<emphasis id="B927EAD0FF86FFBAD441F9C8393D7819" box="[377,526,1572,1596]" italics="true" pageId="12" pageNumber="2976">F. gutturosus</emphasis>
(
<bibRefCitation id="EFC24B33FF86FFBAD727F9C839C67819" author="Kowalevsky A" box="[543,757,1572,1596]" pageId="12" pageNumber="2976" pagination="261 - 283" refId="ref6879" refString="Kowalevsky A. 1901. Sur le genre Chaetoderma. Arch Zool exp gen, ser 3. 9: 261 - 283." type="journal article" year="1901">Kowalevsky, 1901</bibRefCitation>
)
</taxonomicName>
,
<taxonomicName id="4C534D41FF86FFBAD637F9C83F797819" authority="(Nierstrasz, 1902)" baseAuthorityName="Nierstrasz" baseAuthorityYear="1902" box="[783,1098,1572,1596]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="12" pageNumber="2976" phylum="Mollusca" rank="species" species="loveni">
<emphasis id="B927EAD0FF86FFBAD637F9C838427819" box="[783,881,1572,1596]" italics="true" pageId="12" pageNumber="2976">F. loveni</emphasis>
(
<bibRefCitation id="EFC24B33FF86FFBAD6BBF9C83F0C7819" author="Nierstrasz HF" box="[899,1087,1572,1596]" pageId="12" pageNumber="2976" pagination="1 - 46" refId="ref6922" refString="Nierstrasz HF. 1902. The Solenogastres of the Siboga-Expedition. Siboga-Exp, Monogr. 47: 1 - 46 pp, 6 pls." type="book chapter" year="1902">Nierstrasz, 1902</bibRefCitation>
)
</taxonomicName>
,
<taxonomicName id="4C534D41FF86FFBAD5A8F9A83AE2787E" authority="(Heath, 1918)" baseAuthorityName="Heath" baseAuthorityYear="1918" box="[144,465,1603,1628]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="12" pageNumber="2976" phylum="Mollusca" rank="species" species="caudatus">
<emphasis id="B927EAD0FF86FFBAD5A8F9A83A297879" box="[144,282,1604,1628]" italics="true" pageId="12" pageNumber="2976">F. caudatus</emphasis>
(
<bibRefCitation id="EFC24B33FF86FFBAD40AF9AF3AF4787E" author="Heath H" box="[306,455,1603,1627]" pageId="12" pageNumber="2976" pagination="183 - 263" refId="ref6714" refString="Heath H. 1918. Solenogastres from the Eastern Coast of North America. Mem Mus Comp Zool Harvard Coll. 45: 183 - 263." type="journal article" year="1918">Heath, 1918</bibRefCitation>
)
</taxonomicName>
,
<taxonomicName id="4C534D41FF86FFBAD4DFF9AF3877787E" authority="(Schwabl, 1961)" baseAuthorityName="Schwabl" baseAuthorityYear="1961" box="[487,836,1603,1627]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="12" pageNumber="2976" phylum="Mollusca" rank="species" species="hartmani">
<emphasis id="B927EAD0FF86FFBAD4DFF9AF3940787E" box="[487,627,1603,1627]" italics="true" pageId="12" pageNumber="2976">F. hartmani</emphasis>
(
<bibRefCitation id="EFC24B33FF86FFBAD7B4F9AF3809787E" author="Schwabl M" box="[652,826,1603,1627]" pageId="12" pageNumber="2976" pagination="258 - 277" refId="ref7193" refString="Schwabl M. 1961. Crystallophrisson (= Chaetoderma) hartmani, nov. spec., eine neue Aplacophore aus dem Ostpazifik. Zool Anz. 166: 258 - 277." type="journal article" year="1961">Schwabl, 1961</bibRefCitation>
)
</taxonomicName>
,
<taxonomicName id="4C534D41FF86FFBAD663F9AF38DB787E" authorityName="Salvini-Plawen" authorityYear="1968" box="[859,1000,1603,1627]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="12" pageNumber="2976" phylum="Mollusca" rank="species" species="crossotus">
<emphasis id="B927EAD0FF86FFBAD663F9AF3858787E" box="[859,875,1603,1627]" italics="true" pageId="12" pageNumber="2976">F</emphasis>
.
<emphasis id="B927EAD0FF86FFBAD6BAF9AF38DB787E" box="[898,1000,1603,1627]" italics="true" pageId="12" pageNumber="2976">crossotus</emphasis>
</taxonomicName>
Salvini- Plawen, 1968,
<taxonomicName id="4C534D41FF86FFBAD477F98F39DB785E" authority="Salvini-Plawen, 1986" authorityName="Salvini-Plawen" authorityYear="1986" box="[335,744,1635,1659]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="12" pageNumber="2976" phylum="Mollusca" rank="species" species="procerus">
<emphasis id="B927EAD0FF86FFBAD477F98F3AEB785E" box="[335,472,1635,1659]" italics="true" pageId="12" pageNumber="2976">F. procerus</emphasis>
<bibRefCitation id="EFC24B33FF86FFBAD4D4F98F39DB785E" author="Salvini-Plawen Lv" box="[492,744,1635,1659]" pageId="12" pageNumber="2976" refId="ref7085" refString="Salvini-Plawen Lv. 1986. On certain Caudofoveata from the ' Vema' Expedition. Ninth int Malac Congr Edinburgh, Abstracts (Nat Mus Scottland): 76." type="book" year="1986">Salvini-Plawen, 1986</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="4C534D41FF86FFBAD63BF98F3BF578BE" authority="Salvini-Plawen, 1986" authorityName="Salvini-Plawen" authorityYear="1986" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="12" pageNumber="2976" phylum="Mollusca" rank="species" species="targatus">
<emphasis id="B927EAD0FF86FFBAD63BF98F38B9785E" box="[771,906,1635,1659]" italics="true" pageId="12" pageNumber="2976">F. targatus</emphasis>
<bibRefCitation id="EFC24B33FF86FFBAD6A6F98F3BF578BE" author="Salvini-Plawen Lv" pageId="12" pageNumber="2976" refId="ref7085" refString="Salvini-Plawen Lv. 1986. On certain Caudofoveata from the ' Vema' Expedition. Ninth int Malac Congr Edinburgh, Abstracts (Nat Mus Scottland): 76." type="book" year="1986">Salvini-Plawen, 1986</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="4C534D41FF86FFBAD5E5F96F39BD78BE" authority="Salvini-Plawen, 1992" authorityName="Salvini-Plawen" authorityYear="1992" box="[221,654,1667,1691]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="12" pageNumber="2976" phylum="Mollusca" rank="species" species="acutargatus">
<emphasis id="B927EAD0FF86FFBAD5E5F96F3AB478BE" box="[221,391,1667,1691]" italics="true" pageId="12" pageNumber="2976">F. acutargatus</emphasis>
<bibRefCitation id="EFC24B33FF86FFBAD4AFF96F39BD78BE" author="Salvini-Plawen Lv" box="[407,654,1667,1691]" pageId="12" pageNumber="2976" pagination="317 - 333" refId="ref7114" refString="Salvini-Plawen Lv. 1992. On certain Caudofoveata from the VEMA-Expedition. In: Gittenberger E, Goud J, editors. Proceedings of the 9 th International Malacology Congress; Edinburgh. Leiden: Unitas Malacologica; p. 317 - 333." type="book chapter" year="1992">Salvini-Plawen, 1992</bibRefCitation>
</taxonomicName>
, and
<taxonomicName id="4C534D41FF86FFBBD7D8F96F3A397EE5" authority="Salvini-Plawen, 1996" authorityName="Salvini-Plawen" authorityYear="1996" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" lastPageId="13" lastPageNumber="2977" order="Chaetodermatida" pageId="12" pageNumber="2976" phylum="Mollusca" rank="species" species="vasconiensis">
<emphasis id="B927EAD0FF86FFBAD7D8F96F38BD78BE" box="[736,910,1667,1691]" italics="true" pageId="12" pageNumber="2976">F. vasconiensis</emphasis>
<bibRefCitation id="EFC24B33FF86FFBBD6A6F96F3A397EE5" author="Salvini-Plawen Lv" lastPageId="13" lastPageNumber="2977" pageId="12" pageNumber="2976" pagination="339 - 345" refId="ref7158" refString="Salvini-Plawen Lv. 1996. Falcidens vasconiensis spec. nov. (Mollusca, Caudofoveata) du plateau continental du Golfe de Gascogne. Bull Soc Zool Fr. 121: 339 - 345." type="journal article" year="1996">Salvini-Plawen, 1996</bibRefCitation>
</taxonomicName>
(
<bibRefCitation id="EFC24B33FF87FFBBD41BFF443AFF7EE5" author="Schwabl M" box="[291,460,168,192]" pageId="13" pageNumber="2977" pagination="258 - 277" refId="ref7193" refString="Schwabl M. 1961. Crystallophrisson (= Chaetoderma) hartmani, nov. spec., eine neue Aplacophore aus dem Ostpazifik. Zool Anz. 166: 258 - 277." type="journal article" year="1961">Schwabl 1961</bibRefCitation>
;
<bibRefCitation id="EFC24B33FF87FFBBD4DDFF4439E47EE5" author="Salvini-Plawen Lv" box="[485,727,168,192]" pageId="13" pageNumber="2977" pagination="105 - 126" refId="ref6971" refString="Salvini-Plawen Lv. 1968. Uber Lebendbeobachtungen an Caudofoveata, nebst Bemerkungen zum System der Klasse. Sarsia. 31: 105 - 126." type="journal article" year="1968">Salvini-Plawen 1968</bibRefCitation>
,
<bibRefCitation id="EFC24B33FF87FFBBD7C8FF4438157EE5" author="Salvini-Plawen Lv" box="[752,806,168,192]" pageId="13" pageNumber="2977" pagination="317 - 333" refId="ref7114" refString="Salvini-Plawen Lv. 1992. On certain Caudofoveata from the VEMA-Expedition. In: Gittenberger E, Goud J, editors. Proceedings of the 9 th International Malacology Congress; Edinburgh. Leiden: Unitas Malacologica; p. 317 - 333." type="book chapter" year="1992">1992</bibRefCitation>
,
<bibRefCitation id="EFC24B33FF87FFBBD607FF4438467EE5" author="Salvini-Plawen Lv" box="[831,885,168,192]" pageId="13" pageNumber="2977" pagination="339 - 345" refId="ref7158" refString="Salvini-Plawen Lv. 1996. Falcidens vasconiensis spec. nov. (Mollusca, Caudofoveata) du plateau continental du Golfe de Gascogne. Bull Soc Zool Fr. 121: 339 - 345." type="journal article" year="1996">1996</bibRefCitation>
). Only
<taxonomicName id="4C534D41FF87FFBBD6D8FF443F787EE5" baseAuthorityName="Nierstrasz" baseAuthorityYear="1902" box="[992,1099,168,192]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="13" pageNumber="2977" phylum="Mollusca" rank="species" species="loveni">
<emphasis id="B927EAD0FF87FFBBD6D8FF443F787EE5" box="[992,1099,168,192]" italics="true" pageId="13" pageNumber="2977">F. loveni</emphasis>
</taxonomicName>
from
<collectingCountry id="F3447652FF87FFBBD5ECFF243A747EC5" box="[212,327,200,224]" name="Indonesia" pageId="13" pageNumber="2977">Indonesia</collectingCountry>
,
<taxonomicName id="4C534D41FF87FFBBD461FF243AD77EC5" baseAuthorityName="Schwabl" baseAuthorityYear="1961" box="[345,484,200,224]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="13" pageNumber="2977" phylum="Mollusca" rank="species" species="hartmani">
<emphasis id="B927EAD0FF87FFBBD461FF243AD77EC5" box="[345,484,200,224]" italics="true" pageId="13" pageNumber="2977">F. hartmani</emphasis>
</taxonomicName>
from off Southern California and
<taxonomicName id="4C534D41FF87FFBBD6A0FF243F2E7EC5" authorityName="Salvini-Plawen" authorityYear="1986" box="[920,1053,200,224]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="13" pageNumber="2977" phylum="Mollusca" rank="species" species="procerus">
<emphasis id="B927EAD0FF87FFBBD6A0FF243F2E7EC5" box="[920,1053,200,224]" italics="true" pageId="13" pageNumber="2977">F. procerus</emphasis>
</taxonomicName>
from the Peru
<collectingCountry id="F3447652FF87FFBBD42EFF043A607F25" box="[278,339,232,256]" name="Chile" pageId="13" pageNumber="2977">Chile</collectingCountry>
trench inhabit Pacific waters, whereas the
<typeStatus id="54E88860FF87FFBBD670FF04384A7F25" box="[840,889,232,256]" pageId="13" pageNumber="2977">type</typeStatus>
species
<taxonomicName id="4C534D41FF87FFBBD6E1FF043F537F25" authorityName="Salvini-Plawen" authorityYear="1968" box="[985,1120,232,256]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="13" pageNumber="2977" phylum="Mollusca" rank="species" species="crossotus">
<emphasis id="B927EAD0FF87FFBBD6E1FF043F537F25" box="[985,1120,232,256]" italics="true" pageId="13" pageNumber="2977">F. crossotus</emphasis>
</taxonomicName>
and the other representatives belong to the Atlantic fauna. With respect to the sclerites,
<taxonomicName id="4C534D41FF87FFBBD42DFEC43A967F65" authorityName="Salvini-Plawen" authorityYear="1968" box="[277,421,296,320]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="13" pageNumber="2977" phylum="Mollusca" rank="species" species="crossotus">
<emphasis id="B927EAD0FF87FFBBD42DFEC43A967F65" box="[277,421,296,320]" italics="true" pageId="13" pageNumber="2977">F. crossotus</emphasis>
</taxonomicName>
from the Scandinavian coast and
<taxonomicName id="4C534D41FF87FFBBD64CFEC43F217F65" baseAuthorityName="Kowalevsky" baseAuthorityYear="1901" box="[884,1042,296,320]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="13" pageNumber="2977" phylum="Mollusca" rank="species" species="gutturosus">
<emphasis id="B927EAD0FF87FFBBD64CFEC43F217F65" box="[884,1042,296,320]" italics="true" pageId="13" pageNumber="2977">F. gutturosus</emphasis>
</taxonomicName>
from the Mediterranean Sea are similar to those of
<taxonomicName id="4C534D41FF87FFBBD7F0FEA438AA7F45" authorityName="Saito &amp; Salvini-Plawen" authorityYear="2014" box="[712,921,328,352]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="13" pageNumber="2977" phylum="Mollusca" rank="species" species="ryokuyomaruae">
<emphasis id="B927EAD0FF87FFBBD7F0FEA438AA7F45" box="[712,921,328,352]" italics="true" pageId="13" pageNumber="2977">F. ryokuyomaruae</emphasis>
</taxonomicName>
by having lanceolate scales with flared base in the midbody (see
<bibRefCitation id="EFC24B33FF87FFBBD7DDFE8B38E27F5A" author="Salvini-Plawen Lv" box="[741,977,359,383]" pageId="13" pageNumber="2977" pagination="105 - 126" refId="ref6971" refString="Salvini-Plawen Lv. 1968. Uber Lebendbeobachtungen an Caudofoveata, nebst Bemerkungen zum System der Klasse. Sarsia. 31: 105 - 126." type="journal article" year="1968">Salvini-Plawen 1968</bibRefCitation>
,
<bibRefCitation id="EFC24B33FF87FFBBD6DDFE8B3F287F5A" author="Salvini-Plawen Lv" box="[997,1051,359,383]" pageId="13" pageNumber="2977" pagination="27 - 51" refId="ref7013" refString="Salvini-Plawen Lv. 1972. Die Caudofoveata des Mittelmeeres und das Genus Scutopus (Mollusca, Aculifera). In: Battaglia B, editor. Fifth European marine biology symposium. Padova: Piccin Editore; p. 27 - 51." type="book chapter" year="1972">1972</bibRefCitation>
,
<bibRefCitation id="EFC24B33FF87FFBBD117FE8B3F567F5A" author="Salvini-Plawen Lv" box="[1071,1125,359,383]" pageId="13" pageNumber="2977" pagination="339 - 345" refId="ref7158" refString="Salvini-Plawen Lv. 1996. Falcidens vasconiensis spec. nov. (Mollusca, Caudofoveata) du plateau continental du Golfe de Gascogne. Bull Soc Zool Fr. 121: 339 - 345." type="journal article" year="1996">1996</bibRefCitation>
). It differs, however, by geographical provenance, and by the pedal shield which surrounds the mouth opening, narrower sclerites with waist in the foregut region, and proportionally wider prepallial sclerites. In the North Pacific, only one species,
<taxonomicName id="4C534D41FF87FFBBD402FE0B38217FDA" authority="(Ivanov, 1984)" baseAuthorityName="Ivanov" baseAuthorityYear="1984" box="[314,786,487,511]" class="Caudofoveata" family="Chaetodermatidae" genus="Falcidens" kingdom="Animalia" order="Chaetodermatida" pageId="13" pageNumber="2977" phylum="Mollusca" rank="species" species="salviniplaweni">
<emphasis id="B927EAD0FF87FFBBD402FE0B39627FDA" box="[314,593,487,511]" italics="true" pageId="13" pageNumber="2977">Falcidens salviniplaweni</emphasis>
(
<bibRefCitation id="EFC24B33FF87FFBBD751FE0B383B7FDA" author="Ivanov DL" box="[617,776,487,511]" pageId="13" pageNumber="2977" refId="ref6764" refString="Ivanov DL. 1984. Caudofoveata (Mollusca, Caudofoveata) from Peter the Great Bay. Hydrobiological investigations of basins and bays of Primorje. Vladivostok: Akademia Nauka USSR; p. 28 - 41. Russian." type="book" year="1984">Ivanov, 1984</bibRefCitation>
)
</taxonomicName>
, is known from the Peter the Great Bay, Sea of
<collectingCountry id="F3447652FF87FFBBD486FDEB39357C3A" box="[446,518,519,543]" name="Japan" pageId="13" pageNumber="2977">Japan</collectingCountry>
. The present species is distinguishable from the latter by having the tail-like narrowed posterior body.
</paragraph>
</subSubSection>
</treatment>
</document>