treatments-xml/data/03/AB/87/03AB87DAB6709B59FF15FF03FD4FFA18.xml
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<mods:title id="4001C0049E875E1D89A4652A8672471A">Morphological and molecular diversity of rissoellids (Mollusca, Gastropoda, Heterobranchia) from the Northwest Pacific island of Hokkaido, Japan</mods:title>
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<taxonomicName id="4C024D4FB6709B59FF15FF03FDB2FF72" authority="Chira &amp; Hasegawa" authorityName="Chira Siadén &amp; Wakeman &amp; Webb &amp; Hasegawa &amp; Kajihara" authorityYear="2019" box="[151,620,151,178]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="species" species="japonica" status="sp. nov.">
<emphasis id="B976EADEB6709B59FF15FF03FEADFF71" bold="true" box="[151,371,151,177]" italics="true" pageId="8" pageNumber="423">Rissoella japonica</emphasis>
Chira &amp; Hasegawa
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,
<taxonomicNameLabel id="A24557A5B6709B59FDFBFF0CFD65FF72" box="[633,699,152,178]" pageId="8" pageNumber="423" rank="species">n. sp.</taxonomicNameLabel>
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(
<figureCitation id="13392A49B6709B59FF1DFF2EFF3DFF13" box="[159,227,186,211]" captionStart="FIGURE 3" captionStartId="5.[151,250,1254,1276]" captionTargetBox="[179,1406,202,1239]" captionTargetId="figure@5.[173,1414,193,1248]" captionTargetPageId="5" captionText="FIGURE 3. Living specimens. (AD) Rissoella elatior. (EF) Rissoella golikovi. (GI) Rissoella japonica n. sp. (JK) Rissoella sp. 1." httpUri="https://zenodo.org/record/2623037/files/figure.png" pageId="8" pageNumber="423">Figs 3</figureCitation>
GI, 6AG)
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<taxonomicName id="4C024D4FB6709B59FF15FE96FF2AFED8" ID-CoL="63S2X" authorityName="Gray" authorityYear="1847" box="[151,244,258,280]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="genus">
<emphasis id="B976EADEB6709B59FF15FE96FF2AFED8" box="[151,244,258,280]" italics="true" pageId="8" pageNumber="423">Rissoella</emphasis>
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sp.—
<treatmentCitation id="0AA310DDB6709B59FEACFE97FDD0FED8" author="Hasegawa, K." box="[302,526,258,280]" page="700" pageId="8" pageNumber="423" year="2000">
<bibRefCitation id="EF934B3DB6709B59FEACFE97FE02FED8" author="Hasegawa, K." box="[302,476,258,280]" pageId="8" pageNumber="423" pagination="700 - 701" refId="ref6623" refString="Hasegawa, K. (2000) Rissoellidae. In: Okutani, T. (Ed.), Marine Mollusks in Japan. Tokai University Press, Tokyo, pp. 700 - 701." type="book chapter" year="2000">Hasegawa, 2000</bibRefCitation>
: 700
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-701, plate 349, fig. Rissoellidae-1;
<treatmentCitation id="0AA310DDB6709B59FCF5FE97FB8DFED8" author="Hasegawa, K." box="[887,1107,258,280]" page="398" pageId="8" pageNumber="423" year="2017">
<bibRefCitation id="EF934B3DB6709B59FCF5FE97FBFFFED8" author="Hasegawa, K." box="[887,1057,258,280]" pageId="8" pageNumber="423" pagination="1063" refId="ref6660" refString="Hasegawa, K. (2017) Rissoellidae. In: Okutani, T. (Ed.), Marine Mollusks in Japan. 2 nd Edition. Tokai University Press, Tokyo, pp. 398 + 1063." type="journal article" year="2017">Hasegawa, 2017</bibRefCitation>
: 398
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, 1063, pl. 355, fig. 5.
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</paragraph>
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<emphasis id="B976EADEB6709B59FF15FEABFE0AFE98" bold="true" box="[151,468,319,344]" pageId="8" pageNumber="423">
Type material.
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<typeStatus id="54B9886EB6709B59FEDCFEABFE11FE98" box="[350,463,319,344]" pageId="8" pageNumber="423" type="holotype">Holotype</typeStatus>
:
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</emphasis>
adult,
<quantity id="4CFA9B29B6709B59FDB6FED4FD4DFE97" box="[564,659,320,344]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" pageId="8" pageNumber="423" unit="mm" value="0.9">0.9 mm</quantity>
(ICHUM
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,
<collectingRegion id="49C6F82EB6709B59FBA7FEABFB48FE98" box="[1061,1174,319,344]" country="Japan" name="Hokkaido" pageId="8" pageNumber="423">Hokkaido</collectingRegion>
,
<collectingCountry id="F315765CB6709B59FB29FED4FB30FE97" box="[1195,1262,320,343]" name="Japan" pageId="8" pageNumber="423">Japan</collectingCountry>
,
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<geoCoordinate id="EE36500BB6709B59FF15FEF0FEE0FEBD" box="[151,318,356,381]" direction="east" orientation="longitude" pageId="8" pageNumber="423" precision="1" value="140.42865">140°2543.1″E</geoCoordinate>
,
<date id="FFBC100CB6709B59FECEFEF0FDC0FEBD" box="[332,542,356,381]" pageId="8" pageNumber="423" value="2016-11-06">
<collectingDate id="EFF8E9E4B6709B59FECEFEF0FDC0FEBD" box="[332,542,356,381]" pageId="8" pageNumber="423" value="2016-11-06">6 November 2016</collectingDate>
</date>
.
<materialsCitation id="3B6A3C91B6709B59FDA9FEF0FE41FE5F" ID-GBIF-Occurrence="2234226071" collectionCode="ICHUM" country="Japan" location="Oshoro Bay" pageId="8" pageNumber="423" specimenCode="RK2002, RO2001, RO2002" specimenCount="3" stateProvince="Hokkaido" typeStatus="paratype">
<emphasis id="B976EADEB6709B59FDA9FEF0FD72FEBD" bold="true" box="[555,684,356,381]" pageId="8" pageNumber="423">
<typeStatus id="54B9886EB6709B59FDA9FEF0FD79FEBD" box="[555,679,356,381]" pageId="8" pageNumber="423" type="paratype">Paratypes</typeStatus>
:
</emphasis>
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(
<collectionCode id="ED13AE09B6709B59FCD3FEF0FC6EFEBC" box="[849,944,356,380]" country="Japan" httpUri="http://grbio.org/cool/dk9x-54ca" name="Invertebrate Collection of the Hokkaido University Museum" pageId="8" pageNumber="423">ICHUM</collectionCode>
<specimenCode id="DBA49EB7B6709B59FC38FEF0FBC2FEBC" box="[954,1052,356,380]" collectionCode="ICHUM" country="Japan" httpUri="http://grbio.org/cool/dk9x-54ca" name="Invertebrate Collection of the Hokkaido University Museum" pageId="8" pageNumber="423">RK2002</specimenCode>
,
<specimenCode id="DBA49EB7B6709B59FBABFEF0FB55FEBC" box="[1065,1163,356,380]" collectionCode="RO" country="Italy" lsid="urn:lsid:biocol.org:col:15061" name="Università degli Studi di Roma La Sapienza" pageId="8" pageNumber="423" type="Herbarium">RO2001</specimenCode>
,
<specimenCode id="DBA49EB7B6709B59FB1AFEF0FB27FEBC" box="[1176,1273,356,380]" collectionCode="RO" country="Italy" lsid="urn:lsid:biocol.org:col:15061" name="Università degli Studi di Roma La Sapienza" pageId="8" pageNumber="423" type="Herbarium">RO2002</specimenCode>
) from
<location id="8EDD6017B6709B59FACBFEF0FF1BFE60" LSID="urn:lsid:plazi:treatment:03AB87DAB6709B59FF15FF03FD4FFA18:8EDD6017B6709B59FACBFEF0FF1BFE60" country="Japan" name="Oshoro Bay" pageId="8" pageNumber="423" stateProvince="Hokkaido">Oshoro Bay</location>
,
<collectingRegion id="49C6F82EB6709B59FF5AFE13FE97FE60" box="[216,329,391,416]" country="Japan" name="Hokkaido" pageId="8" pageNumber="423">Hokkaido</collectingRegion>
,
<collectingCountry id="F315765CB6709B59FEDEFE1CFE41FE5F" box="[348,415,392,415]" name="Japan" pageId="8" pageNumber="423">Japan</collectingCountry>
</materialsCitation>
;
<materialsCitation id="3B6A3C91B6709B59FE30FE1CFBFDFE5F" ID-GBIF-Occurrence="2234226042" box="[434,1059,391,416]" collectionCode="RSH" country="Japan" location="Shakotan" pageId="8" pageNumber="423" specimenCode="RSH2001" specimenCount="1" stateProvince="Hokkaido" typeStatus="paratype">
<specimenCount id="9D04FD45B6709B59FE30FE1CFDE6FE60" box="[434,568,391,416]" pageId="8" pageNumber="423" type="generic">1 specimen</specimenCount>
(
<specimenCode id="DBA49EB7B6709B59FDCCFE1CFD1DFE60" box="[590,707,392,416]" collectionCode="RSH" pageId="8" pageNumber="423">RSH2001</specimenCode>
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<location id="8EDD6017B6709B59FD5CFE13FC97FE60" LSID="urn:lsid:plazi:treatment:03AB87DAB6709B59FF15FF03FD4FFA18:8EDD6017B6709B59FD5CFE13FC97FE60" box="[734,841,391,416]" country="Japan" name="Shakotan" pageId="8" pageNumber="423" stateProvince="Hokkaido">Shakotan</location>
,
<collectingRegion id="49C6F82EB6709B59FCDEFE13FC13FE60" box="[860,973,391,416]" country="Japan" name="Hokkaido" pageId="8" pageNumber="423">Hokkaido</collectingRegion>
,
<collectingCountry id="F315765CB6709B59FC62FE1CFBFDFE5F" box="[992,1059,392,415]" name="Japan" pageId="8" pageNumber="423">Japan</collectingCountry>
</materialsCitation>
. For information on specimens collection locality and GenBank accession numbers see
<tableCitation id="C6800377B6709B59FC8EFE38FCBEFE04" box="[780,864,428,453]" captionStart="TABLE 1" captionStartId="9.[151,239,152,175]" captionText="TABLE 1. Specimens analyzed in this study." pageId="8" pageNumber="423">Table 1</tableCitation>
.
</paragraph>
<paragraph id="8BBD36CCB6709B59FF45FE5BFB39FE28" blockId="8.[151,1437,319,1496]" box="[199,1255,463,488]" pageId="8" pageNumber="423">
ZooBank registration:
<uri id="FF933ACEB6709B59FE46FE5BFB39FE28" box="[452,1255,463,488]" pageId="8" pageNumber="423">
urn:lsid:zoobank.org:act:
<uuid id="FFA40C19B6709B59FD56FE5BFB39FE28" box="[724,1255,463,488]" pageId="8" pageNumber="423">E3102674-B307-40F6-A700-7696AE32FCA8</uuid>
</uri>
</paragraph>
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<subSubSection id="C3186547B6709B59FF45FE60FEB4FDF0" pageId="8" pageNumber="423" type="etymology">
<paragraph id="8BBD36CCB6709B59FF45FE60FEB4FDF0" blockId="8.[151,1437,319,1496]" pageId="8" pageNumber="423">
<emphasis id="B976EADEB6709B59FF45FE60FE90FDCD" bold="true" box="[199,334,500,525]" pageId="8" pageNumber="423">Etymology.</emphasis>
The species name,
<taxonomicName id="4C024D4FB6709B59FDBEFE60FCCFFDCC" authorityName="Chira Siadén &amp; Wakeman &amp; Webb &amp; Hasegawa &amp; Kajihara" authorityYear="2019" box="[572,785,500,525]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="species" species="japonica">
<emphasis id="B976EADEB6709B59FDBEFE60FCCFFDCC" box="[572,785,500,525]" italics="true" pageId="8" pageNumber="423">Rissoella japonica</emphasis>
</taxonomicName>
, refers to the geographical distribution from where the species was found.
</paragraph>
</subSubSection>
<subSubSection id="C3186547B6709B59FF45FDA8FE6CFD25" pageId="8" pageNumber="423" type="diagnosis">
<paragraph id="8BBD36CCB6709B59FF45FDA8FE6CFD25" blockId="8.[151,1437,319,1496]" pageId="8" pageNumber="423">
<emphasis id="B976EADEB6709B59FF45FDA8FE9FFD95" bold="true" box="[199,321,572,597]" pageId="8" pageNumber="423">Diagnosis.</emphasis>
Protoconch with rippled sculpture at suture. Radula, central tooth with 10-13 sharp cusps on cutting edge. Lateral teeth narrow, with median ridge becoming basal process, and outer lateral projection on base; cutting edge with major median cusp, flanked by 5-6 (along outer margin) or 7-9 (along inner margin) sharp cusps. Marginal teeth similar in shape to lateral one but smaller, cutting edge with median cusp, flanked by 3-5 smaller sharp cusps on each side.
</paragraph>
</subSubSection>
<subSubSection id="C3186547B6709B59FF45FD7BFC4AFB54" pageId="8" pageNumber="423" type="description">
<paragraph id="8BBD36CCB6709B59FF45FD7BFC4AFB54" blockId="8.[151,1437,319,1496]" pageId="8" pageNumber="423">
<emphasis id="B976EADEB6709B59FF45FD7BFE87FCC8" bold="true" box="[199,345,751,776]" pageId="8" pageNumber="423">Description.</emphasis>
Shell minute (7641091 µm), thin, fragile, translucent or whitish opaque, elongate (width about 67% of length), with narrow umbilicus, spire of about 30% of total length (
<figureCitation id="13392A49B6709B59FC5BFC80FBECFCED" box="[985,1074,788,813]" captionStart="FIGURE 6" captionStartId="11.[151,250,1598,1620]" captionTargetBox="[223,1365,203,1568]" captionTargetId="figure@11.[217,1369,195,1576]" captionTargetPageId="11" captionText="FIGURE 6. SEM micrographs of Rissoella japonica n. sp. (A) Apertural view of the shell. (B) Apical view of the protoconch. (C) Detail of the protoconch showing the suture. (D) Inner face view of the operculum. (E) Radula. (F) Central teeth. (G) Lateral and marginal teeth." httpUri="https://zenodo.org/record/2623044/files/figure.png" pageId="8" pageNumber="423">Fig. 6A</figureCitation>
). Protoconch smooth, of about 1 whorl, with rippled sculpture along suture (
<figureCitation id="13392A49B6709B59FD14FCA3FCFCFC90" box="[662,802,823,848]" captionStart="FIGURE 6" captionStartId="11.[151,250,1598,1620]" captionTargetBox="[223,1365,203,1568]" captionTargetId="figure@11.[217,1369,195,1576]" captionTargetPageId="11" captionText="FIGURE 6. SEM micrographs of Rissoella japonica n. sp. (A) Apertural view of the shell. (B) Apical view of the protoconch. (C) Detail of the protoconch showing the suture. (D) Inner face view of the operculum. (E) Radula. (F) Central teeth. (G) Lateral and marginal teeth." httpUri="https://zenodo.org/record/2623044/files/figure.png" pageId="8" pageNumber="423">Figs. 6B, C</figureCitation>
). Teleoconch smooth, with distinct growth lines, deep suture, about 2 ½ convex whorls; aperture simple, entire, semicircular, slightly longer than 50% of total length. Operculum typical of family (
<figureCitation id="13392A49B6709B59FE6DFCEBFD92FC58" box="[495,588,895,920]" captionStart="FIGURE 6" captionStartId="11.[151,250,1598,1620]" captionTargetBox="[223,1365,203,1568]" captionTargetId="figure@11.[217,1369,195,1576]" captionTargetPageId="11" captionText="FIGURE 6. SEM micrographs of Rissoella japonica n. sp. (A) Apertural view of the shell. (B) Apical view of the protoconch. (C) Detail of the protoconch showing the suture. (D) Inner face view of the operculum. (E) Radula. (F) Central teeth. (G) Lateral and marginal teeth." httpUri="https://zenodo.org/record/2623044/files/figure.png" pageId="8" pageNumber="423">Fig. 6D</figureCitation>
). Headfoot dark brown with colorless sole; oral lobes and tentacles dark brown. Mantle dark brown or black pigmented, with black patch placed slightly to left on dorsal portion of body whorl (
<figureCitation id="13392A49B6709B59FF6AFC53FEEAFC20" box="[232,308,967,992]" captionStart="FIGURE 3" captionStartId="5.[151,250,1254,1276]" captionTargetBox="[179,1406,202,1239]" captionTargetId="figure@5.[173,1414,193,1248]" captionTargetPageId="5" captionText="FIGURE 3. Living specimens. (AD) Rissoella elatior. (EF) Rissoella golikovi. (GI) Rissoella japonica n. sp. (JK) Rissoella sp. 1." httpUri="https://zenodo.org/record/2623037/files/figure.png" pageId="8" pageNumber="423">Figs. 3</figureCitation>
G-I). Radular formula 11-13 × 1.1.R.1.1 (
<figureCitation id="13392A49B6709B59FC8BFC53FCBEFC20" box="[777,864,967,992]" captionStart="FIGURE 6" captionStartId="11.[151,250,1598,1620]" captionTargetBox="[223,1365,203,1568]" captionTargetId="figure@11.[217,1369,195,1576]" captionTargetPageId="11" captionText="FIGURE 6. SEM micrographs of Rissoella japonica n. sp. (A) Apertural view of the shell. (B) Apical view of the protoconch. (C) Detail of the protoconch showing the suture. (D) Inner face view of the operculum. (E) Radula. (F) Central teeth. (G) Lateral and marginal teeth." httpUri="https://zenodo.org/record/2623044/files/figure.png" pageId="8" pageNumber="423">Fig. 6E</figureCitation>
). Central tooth higher than wide (width about 48% of length), cutting edge with 1013 sharp cusps of different sizes (
<figureCitation id="13392A49B6709B59FC0BFC78FBD4FBC4" box="[905,1034,1004,1029]" captionStart="FIGURE 6" captionStartId="11.[151,250,1598,1620]" captionTargetBox="[223,1365,203,1568]" captionTargetId="figure@11.[217,1369,195,1576]" captionTargetPageId="11" captionText="FIGURE 6. SEM micrographs of Rissoella japonica n. sp. (A) Apertural view of the shell. (B) Apical view of the protoconch. (C) Detail of the protoconch showing the suture. (D) Inner face view of the operculum. (E) Radula. (F) Central teeth. (G) Lateral and marginal teeth." httpUri="https://zenodo.org/record/2623044/files/figure.png" pageId="8" pageNumber="423">Figs. 6E, F</figureCitation>
). Lateral teeth narrow (width about 23% of length), with median ridge becoming basal process, outer lateral projection on base; cutting edge with larger median cusp, flanked by 56 (along outer margin) or 79 (along inner margin) sharp cusps (
<figureCitation id="13392A49B6709B59FA85FBA0FA4EFB8C" box="[1287,1424,1076,1101]" captionStart="FIGURE 6" captionStartId="11.[151,250,1598,1620]" captionTargetBox="[223,1365,203,1568]" captionTargetId="figure@11.[217,1369,195,1576]" captionTargetPageId="11" captionText="FIGURE 6. SEM micrographs of Rissoella japonica n. sp. (A) Apertural view of the shell. (B) Apical view of the protoconch. (C) Detail of the protoconch showing the suture. (D) Inner face view of the operculum. (E) Radula. (F) Central teeth. (G) Lateral and marginal teeth." httpUri="https://zenodo.org/record/2623044/files/figure.png" pageId="8" pageNumber="423">Figs. 6E, G</figureCitation>
). Marginal teeth with similar shape to lateral one but smaller (width about 33% of length); cutting edge with median cusp, flanked by 35 smaller sharp cusps on each side (
<figureCitation id="13392A49B6709B59FC81FBE8FC59FB54" box="[771,903,1148,1173]" captionStart="FIGURE 6" captionStartId="11.[151,250,1598,1620]" captionTargetBox="[223,1365,203,1568]" captionTargetId="figure@11.[217,1369,195,1576]" captionTargetPageId="11" captionText="FIGURE 6. SEM micrographs of Rissoella japonica n. sp. (A) Apertural view of the shell. (B) Apical view of the protoconch. (C) Detail of the protoconch showing the suture. (D) Inner face view of the operculum. (E) Radula. (F) Central teeth. (G) Lateral and marginal teeth." httpUri="https://zenodo.org/record/2623044/files/figure.png" pageId="8" pageNumber="423">Figs. 6E, G</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C3186547B6709B59FF45FB0BFCA6FB1C" pageId="8" pageNumber="423" type="distribution">
<paragraph id="8BBD36CCB6709B59FF45FB0BFCA6FB1C" blockId="8.[151,1437,319,1496]" pageId="8" pageNumber="423">
<emphasis id="B976EADEB6709B59FF45FB0BFDE8FB78" bold="true" box="[199,566,1183,1208]" pageId="8" pageNumber="423">Distribution and microhabitat.</emphasis>
In the Sea of
<collectingCountry id="F315765CB6709B59FD53FB35FCCFFB78" box="[721,785,1185,1208]" name="Japan" pageId="8" pageNumber="423">Japan</collectingCountry>
from Otaru to Setana,
<collectingCountry id="F315765CB6709B59FB93FB35FB8AFB78" box="[1041,1108,1185,1208]" name="Japan" pageId="8" pageNumber="423">Japan</collectingCountry>
. It was found in the intertidal zone on various algae including the coralline algae
<taxonomicName id="4C024D4FB6709B59FD54FB50FC9DFB1D" box="[726,835,1220,1245]" class="Florideophyceae" family="Corallinaceae" genus="Corallina" higherTaxonomySource="GBIF" kingdom="Plantae" order="Corallinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="genus">
<emphasis id="B976EADEB6709B59FD54FB50FC9DFB1D" box="[726,835,1220,1245]" italics="true" pageId="8" pageNumber="423">Corallina</emphasis>
</taxonomicName>
spp.
</paragraph>
</subSubSection>
<subSubSection id="C3186547B6709B59FF45FB73FD4FFA18" pageId="8" pageNumber="423" type="discussion">
<paragraph id="8BBD36CCB6709B59FF45FB73FD4FFA18" blockId="8.[151,1437,319,1496]" pageId="8" pageNumber="423">
<emphasis id="B976EADEB6709B59FF45FB73FEE5FAC0" bold="true" box="[199,315,1255,1280]" pageId="8" pageNumber="423">Remarks.</emphasis>
Both
<taxonomicName id="4C024D4FB6709B59FE06FB7DFDD6FAC0" authority="Chira Siadén &amp; Wakeman &amp; Webb &amp; Hasegawa &amp; Kajihara, 2019" authorityName="Chira Siadén &amp; Wakeman &amp; Webb &amp; Hasegawa &amp; Kajihara" authorityYear="2019" box="[388,520,1257,1280]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="species" species="japonica" status="sp. nov.">
<emphasis id="B976EADEB6709B59FE06FB7DFDD6FAC0" box="[388,520,1257,1280]" italics="true" pageId="8" pageNumber="423">R. japonica</emphasis>
</taxonomicName>
<emphasis id="B976EADEB6709B59FD90FB73FD8DFAC0" bold="true" box="[530,595,1255,1280]" pageId="8" pageNumber="423">
<taxonomicNameLabel id="A24557A5B6709B59FD90FB73FD8DFAC0" box="[530,595,1255,1280]" pageId="8" pageNumber="423" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
and
<taxonomicName id="4C024D4FB6709B59FD12FB7DFD23FAC0" authorityName="Golikov, Gulbin &amp; Sirenko" authorityYear="1987" box="[656,765,1255,1280]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="species" species="elatior">
<emphasis id="B976EADEB6709B59FD12FB7DFD23FAC0" box="[656,765,1255,1280]" italics="true" pageId="8" pageNumber="423">R. elatior</emphasis>
</taxonomicName>
occur sympatrically in some localities, and they might be confused. However, they can be distinguished by the head-foot coloration (being dark brown in
<taxonomicName id="4C024D4FB6709B59FB51FA99FA8BFAE4" authority="Chira Siadén &amp; Wakeman &amp; Webb &amp; Hasegawa &amp; Kajihara, 2019" authorityName="Chira Siadén &amp; Wakeman &amp; Webb &amp; Hasegawa &amp; Kajihara" authorityYear="2019" box="[1235,1365,1293,1316]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="species" species="japonica" status="sp. nov.">
<emphasis id="B976EADEB6709B59FB51FA99FA8BFAE4" box="[1235,1365,1293,1316]" italics="true" pageId="8" pageNumber="423">R. japonica</emphasis>
</taxonomicName>
<emphasis id="B976EADEB6709B59FADEFA98FA42FAE5" bold="true" box="[1372,1436,1292,1317]" pageId="8" pageNumber="423">
<taxonomicNameLabel id="A24557A5B6709B59FADEFA98FA42FAE5" box="[1372,1436,1292,1317]" pageId="8" pageNumber="423" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
and white in
<taxonomicName id="4C024D4FB6709B59FEA4FAA5FE4EFA88" authorityName="Golikov, Gulbin &amp; Sirenko" authorityYear="1987" box="[294,400,1327,1352]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="species" species="elatior">
<emphasis id="B976EADEB6709B59FEA4FAA5FE4EFA88" box="[294,400,1327,1352]" italics="true" pageId="8" pageNumber="423">R. elatior</emphasis>
</taxonomicName>
) and the radula morphology, as well as by conchological characters such as spire/total length and aperture/total length ratios. Based on radula morphology,
<taxonomicName id="4C024D4FB6709B59FCD0FAC1FC0DFAAC" authority="Chira Siadén &amp; Wakeman &amp; Webb &amp; Hasegawa &amp; Kajihara, 2019" authorityName="Chira Siadén &amp; Wakeman &amp; Webb &amp; Hasegawa &amp; Kajihara" authorityYear="2019" box="[850,979,1365,1388]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="species" species="japonica" status="sp. nov.">
<emphasis id="B976EADEB6709B59FCD0FAC1FC0DFAAC" box="[850,979,1365,1388]" italics="true" pageId="8" pageNumber="423">R. japonica</emphasis>
</taxonomicName>
<emphasis id="B976EADEB6709B59FC59FAC0FBC4FAAD" bold="true" box="[987,1050,1364,1389]" pageId="8" pageNumber="423">
<taxonomicNameLabel id="A24557A5B6709B59FC59FAC0FBC4FAAD" box="[987,1050,1364,1389]" pageId="8" pageNumber="423" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
belongs to a group containing the
<typeStatus id="54B9886EB6709B59FF15FAEDFF19FA51" box="[151,199,1401,1425]" pageId="8" pageNumber="423">type</typeStatus>
species of
<emphasis id="B976EADEB6709B59FEC6FAE3FE0AFA50" box="[324,468,1399,1424]" italics="true" pageId="8" pageNumber="423">
<taxonomicName id="4C024D4FB6709B59FEC6FAE3FE75FA50" authority="Chira Siadén &amp; Wakeman &amp; Webb &amp; Hasegawa &amp; Kajihara, 2019" authorityName="Chira Siadén &amp; Wakeman &amp; Webb &amp; Hasegawa &amp; Kajihara" authorityYear="2019" box="[324,427,1399,1424]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="genus" sensu="stricto">Rissoella</taxonomicName>
<taxonomicNameLabel id="A24557A5B6709B59FE33FAEDFE0AFA50" box="[433,468,1401,1424]" pageId="8" pageNumber="423" sensu="stricto">s.s.</taxonomicNameLabel>
</emphasis>
,
<taxonomicName id="4C024D4FB6709B59FE61FAEDFDB2FA50" baseAuthorityName="Alder" baseAuthorityYear="1848" box="[483,620,1399,1424]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="species" species="diaphana">
<emphasis id="B976EADEB6709B59FE61FAEDFDB2FA50" box="[483,620,1399,1424]" italics="true" pageId="8" pageNumber="423">R. diaphana</emphasis>
</taxonomicName>
illustrated by
<bibRefCitation id="EF934B3DB6709B59FC8EFAE3FC42FA50" author="Thiele, J." box="[780,924,1399,1424]" pageId="8" pageNumber="423" refId="ref7906" refString="Thiele, J. (1929 - 1935) Handbuch der systematischen Weichtierkunde. Gustav Fischer, Jena, 1154 pp." type="book" year="1929">
Thiele (
<date id="FFBC100CB6709B59FCE0FAE3FC42FA50" box="[866,924,1399,1424]" pageId="8" pageNumber="423" value="1929" valueMax="1935">1929</date>
</bibRefCitation>
1935; as
<taxonomicName id="4C024D4FB6709B59FB8CFAEDFBA9FA50" authorityName="Gray" authorityYear="1847" box="[1038,1143,1399,1424]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="species" species="glabra">
<emphasis id="B976EADEB6709B59FB8CFAEDFBA9FA50" box="[1038,1143,1399,1424]" italics="true" pageId="8" pageNumber="423">R. glabra</emphasis>
</taxonomicName>
), in having a symmetrical configuration with five teeth per row.
<taxonomicName id="4C024D4FB6709B59FDD5FA08FCF4FA74" authority="Chira Siadén &amp; Wakeman &amp; Webb &amp; Hasegawa &amp; Kajihara, 2019" authorityName="Chira Siadén &amp; Wakeman &amp; Webb &amp; Hasegawa &amp; Kajihara" authorityYear="2019" box="[599,810,1436,1461]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="species" species="japonica" status="sp. nov.">
<emphasis id="B976EADEB6709B59FDD5FA08FCF4FA74" box="[599,810,1436,1461]" italics="true" pageId="8" pageNumber="423">Rissoella japonica</emphasis>
</taxonomicName>
<emphasis id="B976EADEB6709B59FCB7FA08FCA6FA75" bold="true" box="[821,888,1436,1461]" pageId="8" pageNumber="423">
<taxonomicNameLabel id="A24557A5B6709B59FCB7FA08FCA6FA75" box="[821,888,1436,1461]" pageId="8" pageNumber="423" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
can be distinguished from
<taxonomicName id="4C024D4FB6709B59FB39FA09FA96FA75" baseAuthorityName="Alder" baseAuthorityYear="1848" box="[1211,1352,1436,1461]" class="Florideophyceae" family="Rissoellaceae" genus="Rissoella" higherTaxonomySource="GBIF" kingdom="Plantae" order="Gigartinales" pageId="8" pageNumber="423" phylum="Rhodophyta" rank="species" species="diaphana">
<emphasis id="B976EADEB6709B59FB39FA09FA96FA75" box="[1211,1352,1436,1461]" italics="true" pageId="8" pageNumber="423">R. diaphana</emphasis>
</taxonomicName>
by the relatively narrower and smaller central tooth.
</paragraph>
</subSubSection>
</treatment>
</document>