treatments-xml/data/8C/42/8A/8C428A6B2066B656FF3EF8E29ED2FD06.xml

<document id="29AC13FD7D74E131F8E355EA57021559" ID-DOI="10.5281/zenodo.177538" ID-GBIF-Dataset="37ca13c9-cc56-41cf-a98d-8e17c89d2a11" ID-ISSN="1175-5326" ID-Zenodo-Dep="177538" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1459867998045" checkinUser="plazi" docAuthor="Barry, Peter J. &amp; Mccormack, Grace P." docDate="2007" docId="8C428A6B2066B656FF3EF8E29ED2FD06" docLanguage="en" docName="zt01526p049.pdf" docOrigin="Zootaxa 1526" docStyle="DocumentStyle:6581673A57F01A3145754A1E615EDFF0.4:Zootaxa.2007-2008.journal_article" docStyleId="6581673A57F01A3145754A1E615EDFF0" docStyleName="Zootaxa.2007-2008.journal_article" docStyleVersion="4" docTitle="Adontorhina similis Barry &amp; McCormack, new species" docType="treatment" docVersion="9" lastPageNumber="46" masterDocId="707BF2132063B65FFFA9FFAD9E31FFE4" masterDocTitle="Two new species of Adontorhina Berry, 1947 (Bivalvia: Thyasiridae) from the Porcupine Bank, off the west coast of Ireland" masterLastPageNumber="49" masterPageNumber="37" pageNumber="42" updateTime="1698226309272" updateUser="plazi">
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<mods:title id="9D692FDB0764F2BEDA8D7780E7E4FBA9">Two new species of Adontorhina Berry, 1947 (Bivalvia: Thyasiridae) from the Porcupine Bank, off the west coast of Ireland</mods:title>
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<mods:namePart id="BDE753D7C33E70758AB58133F0674FA5">Barry, Peter J.</mods:namePart>
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<mods:namePart id="D13739F43A97F4B6F29F4EC2FBA7D7F4">Mccormack, Grace P.</mods:namePart>
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<mods:date id="4AB59B083C66C737E6EEEA7B1B0E2B86">2007</mods:date>
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<paragraph id="04543B7D2066B65AFF3EF8E29D72F88D" blockId="5.[151,835,1871,1932]" box="[151,835,1871,1897]" pageId="5" pageNumber="42">
<heading id="5F1C8C112066B65AFF3EF8E29D72F88D" bold="true" box="[151,835,1871,1897]" fontSize="11" level="1" pageId="5" pageNumber="42" reason="1">
<emphasis id="369FE76F2066B65AFF3EF8E29D72F88D" bold="true" box="[151,835,1871,1897]" pageId="5" pageNumber="42">
<taxonomicName id="C3EB40FE2066B65AFF3EF8E29C99F88D" authority="Barry &amp; McCormack" authorityName="Barry &amp; McCormack" box="[151,680,1871,1897]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="5" pageNumber="42" phylum="Mollusca" rank="species" species="similis" status="sp. nov.">
<emphasis id="369FE76F2066B65AFF3EF8E29FBFF88D" bold="true" box="[151,398,1871,1897]" italics="true" pageId="5" pageNumber="42">Adontorhina similis,</emphasis>
Barry &amp; McCormack
</taxonomicName>
, 
<taxonomicNameLabel id="2DAC5A142066B65AFD1DF8E29D72F88D" box="[692,835,1871,1897]" pageId="5" pageNumber="42" rank="species">new species</taxonomicNameLabel>
</emphasis>
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</paragraph>
<paragraph id="04543B7D2066B65AFF3EF8DF9F07F868" blockId="5.[151,835,1871,1932]" box="[151,310,1906,1932]" pageId="5" pageNumber="42">
(
<figureCitation id="9CD027F82066B65AFF36F8DF9F1CF868" box="[159,301,1906,1932]" captionStart-0="FIGURE 4" captionStart-1="FIGURE 5" captionStartId-0="7.[151,255,1819,1843]" captionStartId-1="8.[151,255,1110,1134]" captionTargetBox-0="[202,1390,184,1790]" captionTargetBox-1="[235,1355,189,1070]" captionTargetId-0="figure@7.[200,1390,184,1790]" captionTargetId-1="figure@8.[217,1369,177,1080]" captionTargetPageId-0="7" captionTargetPageId-1="8" captionText-0="FIGURE 4. (A) Exterior and (B) interior view of Adontorhina similis from SFO 3 Grab 15 on the Porcupine Bank. Scale bar = 500 µm. (C) Portion of hinge and (D) complete hinge of Adontorhina similis. Scale bar = 200 µm. (E) Dorsal view of Adontorhina similis. Scale bar = 1 mm. (F) Oblique view of hinge of Adontorhina similis. Scale bar = 100 µm. (G) Oblique view of portion of hinge. Scale bar = 50 µm. (H) Oblique view of whole hinge margin. Scale bar = 100 µm." captionText-1="FIGURE 5. Adontorhina similis: internal morphology as seen from the right side of a wholemount, specimen from SFO 3" httpUri-0="https://zenodo.org/record/177542/files/figure.png" httpUri-1="https://zenodo.org/record/177543/files/figure.png" pageId="5" pageNumber="42">Figures 4–5</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="4CF168F62066B65AFF3EF8109C55F810" pageId="5" pageNumber="42" type="reference_group">
<paragraph id="04543B7D2066B65AFF3EF8109C55F810" blockId="5.[151,831,1981,2036]" pageId="5" pageNumber="42">
<taxonomicName id="C3EB40FE2066B65AFF3EF8109C1DF830" authority="Oliver &amp; Killeen" authorityName="Oliver &amp; Killeen" box="[151,556,1981,2004]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="5" pageNumber="42" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="369FE76F2066B65AFF3EF8109F5EF830" box="[151,367,1981,2004]" italics="true" pageId="5" pageNumber="42">Mendicula pygmaea</emphasis>
<bibRefCitation id="607A468C2066B65AFEDFF8109C1DF830" author="Oliver" box="[374,556,1981,2004]" pageId="5" pageNumber="49" refString="Oliver, P. G. &amp; Killeen, I. J. (2002) The Thyasiridae (Mollusca: Bivalvia) of the British Continental Shelf and North Sea Oilfields. An identification manual. Cardiff: National Museums and Galleries of Wales. Biomor Reports, Vol. 3 Cardiff, Wales. 73 pp." type="book" year="2002" yearSuffix="p">Oliver &amp; Killeen</bibRefCitation>
</taxonomicName>
(2002, p.56–58, plate 23) 
<taxonomicName id="C3EB40FE2066B65AFF3EF8709FF7F810" authority="Hartley" authorityName="Hartley" box="[151,454,2013,2036]" class="Bivalvia" family="Thyasiridae" genus="Thyasira" kingdom="Animalia" order="Lucinoida" pageId="5" pageNumber="42" phylum="Mollusca" rank="species" species="subtrigona">
<emphasis id="369FE76F2066B65AFF3EF8709F41F810" box="[151,368,2013,2036]" italics="true" pageId="5" pageNumber="42">Thyasira subtrigona</emphasis>
<bibRefCitation id="607A468C2066B65AFEDFF8709FF7F810" author="Hartley" box="[374,454,2013,2036]" pageId="5" pageNumber="48" refString="Hartley, J. P. (1984) The benthic ecology of the Forties oil field (North Sea). Journal of Experimental Marine Biology and Ecology, 80, 161 - 195." type="journal article" year="1984" yearSuffix="p">Hartley</bibRefCitation>
</taxonomicName>
(1984, p. 192)
</paragraph>
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<paragraph id="04543B7D2065B659FF3EFF359A62FF56" blockId="6.[151,1436,152,2018]" box="[151,1107,152,178]" pageId="6" pageNumber="43">
<typeStatus id="DB5085DF2065B659FF3EFF359EE0FF56" box="[151,209,152,178]" pageId="6" pageNumber="43">Type</typeStatus>
locality. Porcupine Bank, 
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, 
<geoCoordinate id="61DF5DBA2065B659FD09FF359D01FF56" box="[672,816,152,178]" direction="west" orientation="longitude" pageId="6" pageNumber="43" precision="9" value="-13.222834">13°13.37’W</geoCoordinate>
, 
<quantity id="C31396982065B659FC94FF359DB6FF56" box="[829,903,152,178]" metricMagnitude="2" metricUnit="m" metricValue="2.52" pageId="6" pageNumber="43" unit="m" value="252.0">252 m</quantity>
Eastern Atlantic.
</paragraph>
<paragraph id="04543B7D2065B659FF6FFF6D9CB3FEE6" blockId="6.[151,1436,152,2018]" pageId="6" pageNumber="43">
<typeStatus id="DB5085DF2065B659FF6FFF6D9F06FF3E" box="[198,311,192,218]" pageId="6" pageNumber="43" type="holotype">Holotype</typeStatus>
. A complete shell, collected by P.J. Barry, 
<collectionCode id="62FAA3B82065B659FC9AFF6D9DAAFF3E" box="[819,923,192,218]" httpUri="http://grbio.org/cool/hz2c-tkpx" name="National Museum of Ireland" pageId="6" pageNumber="43">NMINH</collectionCode>
.2006.58. Measurements (Length x height x breadth). 
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x 
<quantity id="C31396982065B659FE25FF459FC4FEE6" box="[396,501,232,258]" metricMagnitude="-4" metricUnit="m" metricValue="7.8" pageId="6" pageNumber="43" unit="mm" value="0.78">0.78 mm</quantity>
x 
<quantity id="C31396982065B659FDBBFF459C4FFEE6" box="[530,638,232,258]" metricMagnitude="-4" metricUnit="m" metricValue="6.2" pageId="6" pageNumber="43" unit="mm" value="0.62">0.62 mm</quantity>
.
</paragraph>
<paragraph id="04543B7D2065B659FF6FFEBD9DB4FEB6" blockId="6.[151,1436,152,2018]" pageId="6" pageNumber="43">
<typeStatus id="DB5085DF2065B659FF6FFEBD9F0DFECE" box="[198,316,272,298]" pageId="6" pageNumber="43" type="paratype">Paratypes</typeStatus>
. Three specimens, as 
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, 
<collectionCode id="62FAA3B82065B659FD6BFEBD9D1BFECE" box="[706,810,272,298]" httpUri="http://grbio.org/cool/hz2c-tkpx" name="National Museum of Ireland" pageId="6" pageNumber="43">NMINH</collectionCode>
.2006.64.1–2. Measurements 
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x 
<quantity id="C31396982065B659FABEFEBD9BB2FECE" box="[1303,1411,272,298]" metricMagnitude="-4" metricUnit="m" metricValue="9.399999999999999" pageId="6" pageNumber="43" unit="mm" value="0.94">0.94 mm</quantity>
x 
<quantity id="C31396982065B659FF3EFE959EDCFEB6" box="[151,237,312,338]" metricMagnitude="-4" metricUnit="m" metricValue="6.0" pageId="6" pageNumber="43" unit="mm" value="0.6">0.6mm</quantity>
; 
<quantity id="C31396982065B659FF51FE959F50FEB6" box="[248,353,312,338]" metricMagnitude="-3" metricUnit="m" metricValue="1.17" pageId="6" pageNumber="43" unit="mm" value="1.17">1.17 mm</quantity>
x 
<quantity id="C31396982065B659FED7FE959FD6FEB6" box="[382,487,312,338]" metricMagnitude="-4" metricUnit="m" metricValue="9.1" pageId="6" pageNumber="43" unit="mm" value="0.91">0.91 mm</quantity>
x 
<quantity id="C31396982065B659FDADFE959C6FFEB6" box="[516,606,312,338]" metricMagnitude="-4" metricUnit="m" metricValue="6.0" pageId="6" pageNumber="43" unit="mm" value="0.6">0.6 mm</quantity>
; 0.91 x 0.69 x 
<quantity id="C31396982065B659FCBCFE959DB0FEB6" box="[789,897,312,338]" metricMagnitude="-4" metricUnit="m" metricValue="4.4" pageId="6" pageNumber="43" unit="mm" value="0.44">0.44 mm</quantity>
.
</paragraph>
</subSubSection>
<subSubSection id="4CF168F62065B659FF6FFEF29FD6FE46" pageId="6" pageNumber="43" type="etymology">
<paragraph id="04543B7D2065B659FF6FFEF29FD6FE46" blockId="6.[151,1436,152,2018]" pageId="6" pageNumber="43">
<emphasis id="369FE76F2065B659FF6FFEF29F62FE9D" bold="true" box="[198,339,351,377]" pageId="6" pageNumber="43">Etymology.</emphasis>
From the Latin 
<taxonomicName id="C3EB40FE2065B659FDBBFECD9C52FE9E" box="[530,611,352,378]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="6" pageNumber="43" phylum="Mollusca" rank="species" species="similis">similis</taxonomicName>
, ‘similar,’ referring to the high degree of similarity in external appearance to 
<taxonomicName id="C3EB40FE2065B659FF5BFE259FD1FE45" box="[242,480,392,417]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="6" pageNumber="43" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="369FE76F2065B659FF5BFE259FD1FE45" box="[242,480,392,417]" italics="true" pageId="6" pageNumber="43">Mendicula pygmaea</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="4CF168F62065B659FF6FFE029F3FFD8E" pageId="6" pageNumber="43" type="materials_examined">
<paragraph id="04543B7D2065B659FF6FFE029F3FFD8E" blockId="6.[151,1436,152,2018]" pageId="6" pageNumber="43">
<emphasis id="369FE76F2065B659FF6FFE029F8CFE2D" bold="true" box="[198,445,431,457]" pageId="6" pageNumber="43">Material examined.</emphasis>
CEO3, Station GT, 54° N, 
<geoCoordinate id="61DF5DBA2065B659FCA6FE1D9DB7FE2E" box="[783,902,432,458]" direction="west" orientation="longitude" pageId="6" pageNumber="43" precision="925" value="-12.4">12° 24’W</geoCoordinate>
, 
<quantity id="C31396982065B659FC3CFE1D9DD3FE2E" box="[917,994,432,458]" metricMagnitude="2" metricUnit="m" metricValue="3.2" pageId="6" pageNumber="43" unit="m" value="320.0">320 m</quantity>
2 spec.; CEO3 Station 9, 
<geoCoordinate id="61DF5DBA2065B659FA8CFE1D9BA6FE2E" box="[1317,1431,432,458]" direction="north" orientation="latitude" pageId="6" pageNumber="43" precision="925" value="52.5">52° 30’N</geoCoordinate>
, 14°W, 
<quantity id="C31396982065B659FF43FE759F06FE16" box="[234,311,472,498]" metricMagnitude="2" metricUnit="m" metricValue="3.0" pageId="6" pageNumber="43" unit="m" value="300.0">300 m</quantity>
11 spec.; SFO3 Grab 7, 
<geoCoordinate id="61DF5DBA2065B659FDCFFE759CC2FE16" box="[614,755,472,498]" direction="north" orientation="latitude" pageId="6" pageNumber="43" precision="9" value="53.1295">53°07.77’N</geoCoordinate>
, 
<geoCoordinate id="61DF5DBA2065B659FCABFE759DA0FE16" box="[770,913,472,498]" direction="west" orientation="longitude" pageId="6" pageNumber="43" precision="9" value="-13.222834">13°13.37’W</geoCoordinate>
<quantity id="C31396982065B659FC35FE759DD9FE16" box="[924,1000,472,498]" metricMagnitude="2" metricUnit="m" metricValue="2.52" pageId="6" pageNumber="43" unit="m" value="252.0">252 m</quantity>
6 spec.; SFO3 Grab 8, 
<geoCoordinate id="61DF5DBA2065B659FAA2FE759BA6FE16" box="[1291,1431,472,498]" direction="north" orientation="latitude" pageId="6" pageNumber="43" precision="9" value="53.1295">53°07.77’N</geoCoordinate>
, 
<geoCoordinate id="61DF5DBA2065B659FF3EFDAD9F16FDFE" box="[151,295,512,538]" direction="west" orientation="longitude" pageId="6" pageNumber="43" precision="9" value="-13.222834">13°13.37’W</geoCoordinate>
<quantity id="C31396982065B659FE9CFDAD9FB7FDFE" box="[309,390,512,538]" metricMagnitude="2" metricUnit="m" metricValue="2.52" pageId="6" pageNumber="43" unit="m" value="252.0">252 m</quantity>
5 spec.; SFO3 Grab 15, 
<geoCoordinate id="61DF5DBA2065B659FD78FDAD9D6CFDFE" box="[721,861,512,538]" direction="north" orientation="latitude" pageId="6" pageNumber="43" precision="9" value="52.873665">52°52.42’N</geoCoordinate>
, 
<geoCoordinate id="61DF5DBA2065B659FCD9FDAD9A31FDFE" box="[880,1024,512,538]" direction="west" orientation="longitude" pageId="6" pageNumber="43" precision="9" value="-12.442">12°26.52’W</geoCoordinate>
<quantity id="C31396982065B659FBA7FDAD9A51FDFE" box="[1038,1120,512,538]" metricMagnitude="2" metricUnit="m" metricValue="3.82" pageId="6" pageNumber="43" unit="m" value="382.0">382 m</quantity>
8 spec.; SFO3 Grab 17, 
<geoCoordinate id="61DF5DBA2065B659FF3EFD859F12FDA6" box="[151,291,552,578]" direction="north" orientation="latitude" pageId="6" pageNumber="43" precision="9" value="52.646168">52°38.77’N</geoCoordinate>
, 
<geoCoordinate id="61DF5DBA2065B659FE9BFD859FF0FDA6" box="[306,449,552,578]" direction="west" orientation="longitude" pageId="6" pageNumber="43" precision="9" value="-12.184667">12°11.08’W</geoCoordinate>
<quantity id="C31396982065B659FE62FD859C29FDA6" box="[459,536,552,578]" metricMagnitude="2" metricUnit="m" metricValue="3.3" pageId="6" pageNumber="43" unit="m" value="330.0">330 m</quantity>
4 spec.; 
<collectionCode id="62FAA3B82065B659FD20FD859CDBFDA6" box="[649,746,552,578]" httpUri="http://grbio.org/cool/idd9-qjfy" name="National Museum of Wales" pageId="6" pageNumber="43">NMWZ</collectionCode>
.2001.097, ERT 92/082A 
<geoCoordinate id="61DF5DBA2065B659FBB4FD859ABEFDA6" box="[1053,1167,552,578]" direction="north" orientation="latitude" pageId="6" pageNumber="43" precision="925" value="60.6">60° 36’N</geoCoordinate>
, 
<geoCoordinate id="61DF5DBA2065B659FB37FD859B3BFDA6" box="[1182,1290,552,578]" direction="east" orientation="longitude" pageId="6" pageNumber="43" precision="925" value="1.65">01° 39’E</geoCoordinate>
<quantity id="C31396982065B659FABCFD859BADFDA6" box="[1301,1436,552,578]" metricMagnitude="2" metricUnit="m" metricValue="1.375" metricValueMax="1.45" metricValueMin="1.3" pageId="6" pageNumber="43" unit="m" value="137.5" valueMax="145.0" valueMin="130.0">130–145 m</quantity>
200 spec.;
</paragraph>
</subSubSection>
<subSubSection id="4CF168F62065B659FF6FFDDA9C0EFD5E" pageId="6" pageNumber="43" type="distribution">
<paragraph id="04543B7D2065B659FF6FFDDA9C0EFD5E" blockId="6.[151,1436,152,2018]" pageId="6" pageNumber="43">
<emphasis id="369FE76F2065B659FF6FFDDA9F56FD75" bold="true" box="[198,359,631,657]" pageId="6" pageNumber="43">Distribution.</emphasis>
Porcupine Bank, west of 
<collectingCountry id="7CFC7BED2065B659FD3CFDD59CDDFD76" box="[661,748,632,658]" name="Ireland" pageId="6" pageNumber="43">Ireland</collectingCountry>
. Depth range 
<quantity id="C31396982065B659FC24FDD59A27FD76" box="[909,1046,632,658]" metricMagnitude="2" metricUnit="m" metricValue="3.17" metricValueMax="3.82" metricValueMin="2.52" pageId="6" pageNumber="43" unit="m" value="317.0" valueMax="382.0" valueMin="252.0">
252– 
<specimenCount id="12EDF0F42065B659FC61FDD59A27FD76" box="[968,1046,632,658]" pageId="6" pageNumber="43" type="generic">382 m</specimenCount>
</quantity>
. North Sea oilfields. Depth range 
<quantity id="C31396982065B659FF3EFD0D9F3CFD5E" box="[151,269,672,698]" metricMagnitude="2" metricUnit="m" metricValue="1.23" metricValueMax="1.61" metricValueMin="0.85" pageId="6" pageNumber="43" unit="m" value="123.0" valueMax="161.0" valueMin="85.0">85–161 m</quantity>
(
<bibRefCitation id="607A468C2065B659FEB5FD0D9C02FD5E" author="Oliver" box="[284,563,672,698]" pageId="6" pageNumber="49" refString="Oliver, P. G. &amp; Killeen, I. J. (2002) The Thyasiridae (Mollusca: Bivalvia) of the British Continental Shelf and North Sea Oilfields. An identification manual. Cardiff: National Museums and Galleries of Wales. Biomor Reports, Vol. 3 Cardiff, Wales. 73 pp." type="book" year="2002">Oliver &amp; Killeen, 2002</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="4CF168F62065B659FF6FFD6A9F6EF806" pageId="6" pageNumber="43" type="description">
<paragraph id="04543B7D2065B659FF6FFD6A9C55FC1E" blockId="6.[151,1436,152,2018]" pageId="6" pageNumber="43">
<emphasis id="369FE76F2065B659FF6FFD6A9F6EFD05" bold="true" box="[198,351,711,737]" pageId="6" pageNumber="43">Description.</emphasis>
Shell minute (maximum size 
<quantity id="C31396982065B659FD62FD659D27FD06" box="[715,790,712,738]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="6" pageNumber="43" unit="mm" value="2.0">2 mm</quantity>
), fragile, moderately compressed, colour white; subovate, longer than high (
<figureCitation id="9CD027F82065B659FE01FD5D9C3EFCEE" box="[424,527,752,778]" captionStart="FIGURE 4" captionStartId="7.[151,255,1819,1843]" captionTargetBox="[202,1390,184,1790]" captionTargetId="figure@7.[200,1390,184,1790]" captionTargetPageId="7" captionText="FIGURE 4. (A) Exterior and (B) interior view of Adontorhina similis from SFO 3 Grab 15 on the Porcupine Bank. Scale bar = 500 µm. (C) Portion of hinge and (D) complete hinge of Adontorhina similis. Scale bar = 200 µm. (E) Dorsal view of Adontorhina similis. Scale bar = 1 mm. (F) Oblique view of hinge of Adontorhina similis. Scale bar = 100 µm. (G) Oblique view of portion of hinge. Scale bar = 50 µm. (H) Oblique view of whole hinge margin. Scale bar = 100 µm." httpUri="https://zenodo.org/record/177542/files/figure.png" pageId="6" pageNumber="43">Figure 4</figureCitation>
); inequilateral, beaks in posterior; very thin, transparent periostracum; sculpture of weak commarginal striae; sulcus absent, posterior flank flattened; umbones inflated, pronounced, prosogyrate; prodissoconch I approximately 150 µm in diameter; lunule indistinct; escutcheon obscure; anterodorsal margin weakly curved, straight in some specimens, anterior broadly rounded; posterior markedly angulate; posterodorsal margin straight, sloping; hinge plate thin, divided into two sections, anterior section thicker, both with irregular granules (
<figureCitation id="9CD027F82065B659FDE0FC159C9CFC36" box="[585,685,952,978]" captionStart="FIGURE 4" captionStartId="7.[151,255,1819,1843]" captionTargetBox="[202,1390,184,1790]" captionTargetId="figure@7.[200,1390,184,1790]" captionTargetPageId="7" captionText="FIGURE 4. (A) Exterior and (B) interior view of Adontorhina similis from SFO 3 Grab 15 on the Porcupine Bank. Scale bar = 500 µm. (C) Portion of hinge and (D) complete hinge of Adontorhina similis. Scale bar = 200 µm. (E) Dorsal view of Adontorhina similis. Scale bar = 1 mm. (F) Oblique view of hinge of Adontorhina similis. Scale bar = 100 µm. (G) Oblique view of portion of hinge. Scale bar = 50 µm. (H) Oblique view of whole hinge margin. Scale bar = 100 µm." httpUri="https://zenodo.org/record/177542/files/figure.png" pageId="6" pageNumber="43">Figure 4</figureCitation>
C–D, F–H); small cardinal tubercle in the right valve with a corresponding depression in the left valve.
</paragraph>
<paragraph id="04543B7D2065B659FF6FFBAA9AAAF946" blockId="6.[151,1436,152,2018]" pageId="6" pageNumber="43">
<emphasis id="369FE76F2065B659FF6FFBAA9F96FBC5" bold="true" box="[198,423,1031,1057]" pageId="6" pageNumber="43">Internal anatomy.</emphasis>
The anterior adductor muscle is larger than the posterior muscle (
<figureCitation id="9CD027F82065B659FB00FBA59B3FFBC6" box="[1193,1294,1032,1058]" captionStart="FIGURE 5" captionStartId="8.[151,255,1110,1134]" captionTargetBox="[235,1355,189,1070]" captionTargetId="figure@8.[217,1369,177,1080]" captionTargetPageId="8" captionText="FIGURE 5. Adontorhina similis: internal morphology as seen from the right side of a wholemount, specimen from SFO 3" httpUri="https://zenodo.org/record/177543/files/figure.png" pageId="6" pageNumber="43">Figure 5</figureCitation>
); both muscles are divided into quick and catch areas; anterior muscle is elongate, while the posterior is round. Single point of mantle fusion occurs beneath the gill axis, forming the posterior aperture; mantle folds thin and extended, particularly the middle fold which is filled with glandular tissue; all mantle folds have a small area of concentric muscle within their tips; centre of the mantle edge has a single strand of radial muscle but is otherwise filled with a large blood space; inner mantle is fold compressed, with a poorly defined rejection tract; on the inner surface of the mantle edge between the inner and middle folds, the area has small underdeveloped lobes or folds; periostracal groove deep. There is no region of glandular tissue underneath the anterior adductor muscle. Each gill has a single demibranch comprised of ten to eleven filaments; ascending lamellae three quarters the length of the descending lamellae; filaments thin with well-developed eu-laterofrontal cilia; gill filaments 
<typeStatus id="DB5085DF2065B659FEA6FA359F70FA56" box="[271,321,1432,1458]" pageId="6" pageNumber="43">type</typeStatus>
2 (
<bibRefCitation id="607A468C2065B659FEC7FA359C24FA56" author="Dufour" box="[366,533,1432,1458]" pageId="6" pageNumber="48" refString="Dufour, S. C. (2005) Gill anatomy and evolution of symbiosis in the bivalve Family Thyasiridae. Biological Bulletin, 208, 200 - 212." type="journal article" year="2005">Dufour, 2005</bibRefCitation>
); where interfilamentar fusion occurs, the abfrontal areas and blood space remains wide and forms a strong connection; filamentar muscles absent. Labial palps relatively large, triangular. Oesophagus thickened, leading into a very large stomach. Hindgut loops above the stomach and descends around the outside of the posterior adductor muscle. Lateral pouches undivided, unlobed and end in a pointed tip ventrally; there are two tubules leading into the pouches. Kidneys paired, small. Foot short with a well developed heel; ventral portion of the heel contains glandular tissue which continues out to the tip of the foot; heel sagittally grooved; tip of the foot is undifferentiated from the heavily ciliated stem.
</paragraph>
<paragraph id="04543B7D2065B659FF6FF9029F6EF806" blockId="6.[151,1436,152,2018]" pageId="6" pageNumber="43">
<emphasis id="369FE76F2065B659FF6FF9029FE9F92D" bold="true" box="[198,472,1711,1737]" pageId="6" pageNumber="43">Differential diagnosis.</emphasis>
The sharp angle created by the posterior shell margin in combination with the flattened posterior flank differentiates 
<taxonomicName id="C3EB40FE2065B659FD99F9759D29F915" box="[560,792,1752,1777]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="6" pageNumber="43" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F2065B659FD99F9759D29F915" box="[560,792,1752,1777]" italics="true" pageId="6" pageNumber="43">Adontorhina similis</emphasis>
</taxonomicName>
from other 
<taxonomicName id="C3EB40FE2065B659FC08F9759A04F915" box="[929,1077,1752,1777]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="6" pageNumber="43" phylum="Mollusca" rank="genus">
<emphasis id="369FE76F2065B659FC08F9759A04F915" box="[929,1077,1752,1777]" italics="true" pageId="6" pageNumber="43">Adontorhina</emphasis>
</taxonomicName>
species. 
<taxonomicName id="C3EB40FE2065B659FB36F9759B3DF915" box="[1183,1292,1752,1778]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="6" pageNumber="43" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F2065B659FB36F9759A80F915" box="[1183,1201,1752,1777]" italics="true" pageId="6" pageNumber="43">A</emphasis>
. 
<emphasis id="369FE76F2065B659FB16F9759B3DF915" box="[1215,1292,1752,1777]" italics="true" pageId="6" pageNumber="43">similis</emphasis>
</taxonomicName>
is similar to 
<taxonomicName id="C3EB40FE2065B659FF3EF8AD9CA2F8FE" authority="Valentich Scott, 2000" authorityName="Valentich Scott" authorityYear="2000" box="[151,659,1792,1818]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="6" pageNumber="43" phylum="Mollusca" rank="species" species="lynnae">
<emphasis id="369FE76F2065B659FF3EF8AD9FB2F8FD" box="[151,387,1792,1817]" italics="true" pageId="6" pageNumber="43">Adontorhina lynnae</emphasis>
Valentich Scott, 2000
</taxonomicName>
; however, 
<taxonomicName id="C3EB40FE2065B659FCB1F8AD9DBBF8FD" box="[792,906,1792,1818]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="6" pageNumber="43" phylum="Mollusca" rank="species" species="lynnae">
<emphasis id="369FE76F2065B659FCB1F8AD9D1BF8FD" box="[792,810,1792,1817]" italics="true" pageId="6" pageNumber="43">A</emphasis>
. 
<emphasis id="369FE76F2065B659FC95F8AD9DBBF8FD" box="[828,906,1792,1817]" italics="true" pageId="6" pageNumber="43">lynnae</emphasis>
</taxonomicName>
has larger, prominent umbones and a more densely granulated hingeplate. Internally, 
<taxonomicName id="C3EB40FE2065B659FD25F8859CCDF8A5" box="[652,764,1832,1858]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="6" pageNumber="43" phylum="Mollusca" rank="species" species="lynnae">
<emphasis id="369FE76F2065B659FD25F8859CAFF8A5" box="[652,670,1832,1857]" italics="true" pageId="6" pageNumber="43">A</emphasis>
. 
<emphasis id="369FE76F2065B659FD07F8859CCDF8A5" box="[686,764,1832,1857]" italics="true" pageId="6" pageNumber="43">lynnae</emphasis>
</taxonomicName>
differs in having almost double the number of gill filaments in each demibranch and the labial palps are far more reduced than those in 
<taxonomicName id="C3EB40FE2065B659FB3CF8FD9B37F88D" box="[1173,1286,1872,1898]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="6" pageNumber="43" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F2065B659FB3CF8FD9A96F88D" box="[1173,1191,1872,1897]" italics="true" pageId="6" pageNumber="43">A</emphasis>
. 
<emphasis id="369FE76F2065B659FB13F8FD9B37F88D" box="[1210,1286,1872,1897]" italics="true" pageId="6" pageNumber="43">similis</emphasis>
</taxonomicName>
. The lateral pouches are larger and develop lobes on the posterior surface while the lateral pouches of 
<taxonomicName id="C3EB40FE2065B659FB6DF8D59B00F875" box="[1220,1329,1912,1938]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="6" pageNumber="43" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F2065B659FB6DF8D59AE7F875" box="[1220,1238,1912,1937]" italics="true" pageId="6" pageNumber="43">A</emphasis>
. 
<emphasis id="369FE76F2065B659FB4CF8D59B00F875" box="[1253,1329,1912,1937]" italics="true" pageId="6" pageNumber="43">similis</emphasis>
</taxonomicName>
are relatively smooth and simple. Further features which separate 
<taxonomicName id="C3EB40FE2065B659FCEAF80D9D81F85D" box="[835,944,1952,1978]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="6" pageNumber="43" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F2065B659FCEAF80D9D64F85D" box="[835,853,1952,1977]" italics="true" pageId="6" pageNumber="43">A</emphasis>
. 
<emphasis id="369FE76F2065B659FCCDF80D9D81F85D" box="[868,944,1952,1977]" italics="true" pageId="6" pageNumber="43">similis</emphasis>
</taxonomicName>
from other species of 
<taxonomicName id="C3EB40FE2065B659FB1FF80D9B7BF85D" box="[1206,1354,1952,1977]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="6" pageNumber="43" phylum="Mollusca" rank="genus">
<emphasis id="369FE76F2065B659FB1FF80D9B7BF85D" box="[1206,1354,1952,1977]" italics="true" pageId="6" pageNumber="43">Adontorhina</emphasis>
</taxonomicName>
can be found in 
<tableCitation id="49690EC62065B659FEA8F8659F68F806" box="[257,345,1992,2018]" captionStart="TABLE 1" captionStartId="5.[151,239,1231,1255]" captionTargetBox="[159,1418,1400,1508]" captionTargetPageId="5" captionText="TABLE 1. Character matrix for Adontorhina species including the species described herein, Adontorhina keegani and Adontorhina similis." httpUri="http://table.plazi.org/id/50946BF52066B65AFF3EFB629F41FAED" pageId="6" pageNumber="43" tableUuid="50946BF52066B65AFF3EFB629F41FAED">Table 1</tableCitation>
.
</paragraph>
</subSubSection>
<caption id="50946BF52064B658FF3EF8B69B5EF87E" httpUri="https://zenodo.org/record/177542/files/figure.png" pageId="7" pageNumber="44" targetBox="[202,1390,184,1790]" targetPageId="7">
<paragraph id="04543B7D2064B658FF3EF8B69B5EF87E" blockId="7.[151,1436,1819,1946]" pageId="7" pageNumber="44">
<emphasis id="369FE76F2064B658FF3EF8B69F28F8D7" bold="true" box="[151,281,1819,1843]" pageId="7" pageNumber="44">FIGURE 4.</emphasis>
(A) Exterior and (B) interior view of 
<taxonomicName id="C3EB40FE2064B658FD05F8B69D4FF8D6" box="[684,894,1819,1842]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="7" pageNumber="44" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F2064B658FD05F8B69D4FF8D6" box="[684,894,1819,1842]" italics="true" pageId="7" pageNumber="44">Adontorhina similis</emphasis>
</taxonomicName>
from SFO3 Grab 15 on the Porcupine Bank. Scale bar = 500 µm. (C) Portion of hinge and (D) complete hinge of 
<taxonomicName id="C3EB40FE2064B658FC9AF8939A34F8B1" box="[819,1029,1854,1877]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="7" pageNumber="44" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F2064B658FC9AF8939A34F8B1" box="[819,1029,1854,1877]" italics="true" pageId="7" pageNumber="44">Adontorhina similis</emphasis>
</taxonomicName>
. Scale bar = 200 µm. (E) Dorsal view of 
<taxonomicName id="C3EB40FE2064B658FF1CF8CC9FB8F89C" box="[181,393,1889,1912]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="7" pageNumber="44" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F2064B658FF1CF8CC9FB8F89C" box="[181,393,1889,1912]" italics="true" pageId="7" pageNumber="44">Adontorhina similis</emphasis>
</taxonomicName>
. Scale bar = 1 mm. (F) Oblique view of hinge of 
<taxonomicName id="C3EB40FE2064B658FC04F8CC9AB3F89C" box="[941,1154,1889,1912]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="7" pageNumber="44" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F2064B658FC04F8CC9AB3F89C" box="[941,1154,1889,1912]" italics="true" pageId="7" pageNumber="44">Adontorhina similis</emphasis>
</taxonomicName>
. Scale bar = 100 µm. (G) Oblique view of portion of hinge. Scale bar = 50 µm. (H) Oblique view of whole hinge margin. Scale bar = 100 µm.
</paragraph>
</caption>
<caption id="50946BF5206BB657FF3EFBFB9BADFB89" box="[151,1436,1110,1134]" httpUri="https://zenodo.org/record/177543/files/figure.png" pageId="8" pageNumber="45" targetBox="[235,1355,189,1070]" targetPageId="8">
<paragraph id="04543B7D206BB657FF3EFBFB9BADFB89" blockId="8.[151,1436,1110,1134]" box="[151,1436,1110,1134]" pageId="8" pageNumber="45">
<emphasis id="369FE76F206BB657FF3EFBFB9F29FB8A" bold="true" box="[151,280,1110,1134]" pageId="8" pageNumber="45">FIGURE 5.</emphasis>
<taxonomicName id="C3EB40FE206BB657FEB7FBFA9FC1FB8A" box="[286,496,1111,1134]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="8" pageNumber="45" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F206BB657FEB7FBFA9FC1FB8A" box="[286,496,1111,1134]" italics="true" pageId="8" pageNumber="45">Adontorhina similis</emphasis>
</taxonomicName>
: internal morphology as seen from the right side of a wholemount, specimen from SFO3
</paragraph>
</caption>
<caption id="50946BF5206BB657FF3EF8FF9BA0F88D" box="[151,1425,1874,1898]" httpUri="https://zenodo.org/record/177544/files/figure.png" pageId="8" pageNumber="45" targetBox="[151,1435,1143,1849]" targetPageId="8">
<paragraph id="04543B7D206BB657FF3EF8FF9BA0F88D" blockId="8.[151,1425,1874,1898]" box="[151,1425,1874,1898]" pageId="8" pageNumber="45">
<emphasis id="369FE76F206BB657FF3EF8FF9F28F88E" bold="true" box="[151,281,1874,1898]" pageId="8" pageNumber="45">FIGURE 6.</emphasis>
Internal view of 
<taxonomicName id="C3EB40FE206BB657FE78F8FF9DA2F88D" authority="Verrill &amp; Bush, 1898" authorityName="Verrill &amp; Bush" authorityYear="1898" box="[465,915,1874,1897]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="8" pageNumber="45" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="369FE76F206BB657FE78F8FF9C98F88D" box="[465,681,1874,1897]" italics="true" pageId="8" pageNumber="45">Mendicula pygmaea</emphasis>
Verrill &amp; Bush, 1898
</taxonomicName>
, Lectotype, USNM 78368. Scale bar = 500 µm.
</paragraph>
</caption>
<subSubSection id="4CF168F6206BB656FF6FF8029ED2FD06" lastPageId="9" lastPageNumber="46" pageId="8" pageNumber="45" type="discussion">
<paragraph id="04543B7D206BB656FF6FF8029C2DFE16" blockId="8.[151,1436,1967,2034]" lastBlockId="9.[151,1436,152,738]" lastPageId="9" lastPageNumber="46" pageId="8" pageNumber="45">
<emphasis id="369FE76F206BB657FF6FF8029F0EF82D" bold="true" box="[198,319,1967,1993]" pageId="8" pageNumber="45">Remarks.</emphasis>
<bibRefCitation id="607A468C206BB657FEE0F81D9C5DF82E" author="Oliver" box="[329,620,1968,1994]" pageId="8" pageNumber="49" refString="Oliver, P. G. &amp; Killeen, I. J. (2002) The Thyasiridae (Mollusca: Bivalvia) of the British Continental Shelf and North Sea Oilfields. An identification manual. Cardiff: National Museums and Galleries of Wales. Biomor Reports, Vol. 3 Cardiff, Wales. 73 pp." type="book" year="2002">Oliver &amp; Killeen (2002)</bibRefCitation>
were the first to recognise the irregular granules in this species but declined to erect a new species. Specimens of 
<taxonomicName id="C3EB40FE206BB657FD14F8759A81F816" authority="Verrill &amp; Bush, 1898" authorityName="Verrill &amp; Bush" authorityYear="1898" box="[701,1200,2008,2034]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="8" pageNumber="45" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="369FE76F206BB657FD14F8759D9DF815" box="[701,940,2008,2033]" italics="true" pageId="8" pageNumber="45">Mendicula pygmaea</emphasis>
<bibRefCitation id="607A468C206BB657FC1DF8759A81F816" author="Verrill" box="[948,1200,2008,2034]" pageId="8" pageNumber="49" refString="Verrill, A. E. &amp; Bush, K. J. (1898) Revision of the deep-water mollusca of the Atlantic coast of North America, with descriptions of new genera and species. Proceedings of the United States National Museum, 20, 775 - 901." type="journal article" year="1898">Verrill &amp; Bush, 1898</bibRefCitation>
</taxonomicName>
, from the east coast of 
<collectingCountry id="7CFC7BED206AB656FF11FF359F2CFF56" box="[184,285,152,178]" name="United States of America" pageId="9" pageNumber="46">America</collectingCountry>
were not available for them to examine. Examination of the 
<typeStatus id="DB5085DF206AB656FC51FF359A6FFF56" box="[1016,1118,152,178]" pageId="9" pageNumber="46" type="holotype">holotype</typeStatus>
of 
<taxonomicName id="C3EB40FE206AB656FB20FF359B2DFF55" box="[1161,1308,152,177]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="369FE76F206AB656FB20FF359B2DFF55" box="[1161,1308,152,177]" italics="true" pageId="9" pageNumber="46">M. pygmaea</emphasis>
</taxonomicName>
(
<figureCitation id="9CD027F8206AB656FA85FF359BA2FF56" box="[1324,1427,152,178]" captionStart="FIGURE 6" captionStartId="8.[151,255,1874,1898]" captionTargetBox="[151,1435,1143,1849]" captionTargetId="figure@8.[151,1436,1136,1850]" captionTargetPageId="8" captionText="FIGURE 6. Internal view of Mendicula pygmaea Verrill &amp; Bush, 1898, Lectotype, USNM 78368. Scale bar = 500 µm." httpUri="https://zenodo.org/record/177544/files/figure.png" pageId="9" pageNumber="46">Figure 6</figureCitation>
) and fresh material from the northwest Atlantic for the present study confirmed the lack of teeth in 
<taxonomicName id="C3EB40FE206AB656FAA5FF6D9BADFF3D" box="[1292,1436,192,217]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="369FE76F206AB656FAA5FF6D9BADFF3D" box="[1292,1436,192,217]" italics="true" pageId="9" pageNumber="46">M. pygmaea</emphasis>
</taxonomicName>
(
<figureCitation id="9CD027F8206AB656FF36FF459F36FEE6" box="[159,263,232,258]" captionStart="FIGURE 7" captionStartId="9.[151,255,1370,1394]" captionTargetBox="[151,1435,794,1345]" captionTargetId="figure@9.[151,1436,794,1346]" captionTargetPageId="9" captionText="FIGURE 7. (A) Internal view of right valve of Mendicula pygmaea from the western Atlantic (39 ° 54.1 ' N, 70 ° 10.7 ' W, 457 m). Scale bar = 500 µm. (B) View of total hinge margin. (C) Close up view of anterior portion of hinge." httpUri="https://zenodo.org/record/177545/files/figure.png" pageId="9" pageNumber="46">Figure 7</figureCitation>
). However, the European specimens, previously identified as 
<taxonomicName id="C3EB40FE206AB656FC41FF459A4AFEE5" box="[1000,1147,232,257]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="369FE76F206AB656FC41FF459A4AFEE5" box="[1000,1147,232,257]" italics="true" pageId="9" pageNumber="46">M. pygmaea</emphasis>
</taxonomicName>
, have irregular granules on the hinge plate (
<figureCitation id="9CD027F8206AB656FE23FEBD9FC5FECE" box="[394,500,272,298]" captionStart="FIGURE 4" captionStartId="7.[151,255,1819,1843]" captionTargetBox="[202,1390,184,1790]" captionTargetId="figure@7.[200,1390,184,1790]" captionTargetPageId="7" captionText="FIGURE 4. (A) Exterior and (B) interior view of Adontorhina similis from SFO 3 Grab 15 on the Porcupine Bank. Scale bar = 500 µm. (C) Portion of hinge and (D) complete hinge of Adontorhina similis. Scale bar = 200 µm. (E) Dorsal view of Adontorhina similis. Scale bar = 1 mm. (F) Oblique view of hinge of Adontorhina similis. Scale bar = 100 µm. (G) Oblique view of portion of hinge. Scale bar = 50 µm. (H) Oblique view of whole hinge margin. Scale bar = 100 µm." httpUri="https://zenodo.org/record/177542/files/figure.png" pageId="9" pageNumber="46">Figure 4</figureCitation>
C–D, F–H), a feature which precludes inclusion in 
<taxonomicName id="C3EB40FE206AB656FBD8FEBD9ADFFECD" box="[1137,1262,272,297]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="genus">
<emphasis id="369FE76F206AB656FBD8FEBD9ADFFECD" box="[1137,1262,272,297]" italics="true" pageId="9" pageNumber="46">Mendicula</emphasis>
</taxonomicName>
. Furthermore, examination of the internal anatomy has shown additional differences between these species. The adductor muscles of 
<taxonomicName id="C3EB40FE206AB656FEB5FECD9F9CFE9D" box="[284,429,352,378]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="369FE76F206AB656FEB5FECD9F05FE9D" box="[284,308,352,377]" italics="true" pageId="9" pageNumber="46">M</emphasis>
. 
<emphasis id="369FE76F206AB656FEEAFECD9F9CFE9D" box="[323,429,352,377]" italics="true" pageId="9" pageNumber="46">pygmaea</emphasis>
</taxonomicName>
are smaller than those in 
<taxonomicName id="C3EB40FE206AB656FD71FECD9D77FE9D" box="[728,838,352,378]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F206AB656FD71FECD9CDBFE9D" box="[728,746,352,377]" italics="true" pageId="9" pageNumber="46">A</emphasis>
. 
<emphasis id="369FE76F206AB656FD50FECD9D77FE9D" box="[761,838,352,377]" italics="true" pageId="9" pageNumber="46">similis</emphasis>
</taxonomicName>
as are the lateral pouches. The foot of 
<taxonomicName id="C3EB40FE206AB656FAA2FECD9BADFE9D" box="[1291,1436,352,378]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="369FE76F206AB656FAA2FECD9B12FE9D" box="[1291,1315,352,377]" italics="true" pageId="9" pageNumber="46">M</emphasis>
. 
<emphasis id="369FE76F206AB656FA9BFECD9BADFE9D" box="[1330,1436,352,377]" italics="true" pageId="9" pageNumber="46">pygmaea</emphasis>
</taxonomicName>
does not contain as well-developed a heel as that of 
<taxonomicName id="C3EB40FE206AB656FC8CFE259DA7FE45" box="[805,918,392,418]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F206AB656FC8CFE259D06FE45" box="[805,823,392,417]" italics="true" pageId="9" pageNumber="46">A</emphasis>
. 
<emphasis id="369FE76F206AB656FCE3FE259DA7FE45" box="[842,918,392,417]" italics="true" pageId="9" pageNumber="46">similis</emphasis>
</taxonomicName>
. 
<taxonomicName id="C3EB40FE206AB656FC00FE259A0FFE45" box="[937,1086,392,418]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="369FE76F206AB656FC00FE259DF0FE45" box="[937,961,392,417]" italics="true" pageId="9" pageNumber="46">M</emphasis>
. 
<emphasis id="369FE76F206AB656FC7DFE259A0FFE45" box="[980,1086,392,417]" italics="true" pageId="9" pageNumber="46">pygmaea</emphasis>
</taxonomicName>
from the northwest Atlantic remains a valid species, however, the European form can no longer be recognised as 
<taxonomicName id="C3EB40FE206AB656FB2BFE1D9B25FE2D" box="[1154,1300,432,458]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="369FE76F206AB656FB2BFE1D9AABFE2D" box="[1154,1178,432,457]" italics="true" pageId="9" pageNumber="46">M</emphasis>
. 
<emphasis id="369FE76F206AB656FB03FE1D9B25FE2D" box="[1194,1300,432,457]" italics="true" pageId="9" pageNumber="46">pygmaea</emphasis>
</taxonomicName>
and is here described as 
<taxonomicName id="C3EB40FE206AB656FE87FE759C24FE15" box="[302,533,472,497]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F206AB656FE87FE759C24FE15" box="[302,533,472,497]" italics="true" pageId="9" pageNumber="46">Adontorhina similis</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="04543B7D206AB656FF6FFDAD9ED2FD06" blockId="9.[151,1436,152,738]" pageId="9" pageNumber="46">
<bibRefCitation id="607A468C206AB656FF6FFDAD9FD0FDFE" author="Oliver" box="[198,481,512,538]" pageId="9" pageNumber="49" refString="Oliver, P. G. &amp; Killeen, I. J. (2002) The Thyasiridae (Mollusca: Bivalvia) of the British Continental Shelf and North Sea Oilfields. An identification manual. Cardiff: National Museums and Galleries of Wales. Biomor Reports, Vol. 3 Cardiff, Wales. 73 pp." type="book" year="2002">Oliver &amp; Killeen (2002)</bibRefCitation>
reported that specimens which had previously been recorded as 
<taxonomicName id="C3EB40FE206AB656FB79FDAD9F43FDA6" authority="Jeffreys, 1858" authorityName="Jeffreys" authorityYear="1858" class="Bivalvia" family="Thyasiridae" genus="Thyasira" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="subtrigona">
<emphasis id="369FE76F206AB656FB79FDAD9EF2FDA5" italics="true" pageId="9" pageNumber="46">Thyasira subtrigona</emphasis>
<bibRefCitation id="607A468C206AB656FF63FD859F43FDA6" author="Jeffreys" box="[202,370,552,578]" pageId="9" pageNumber="48" refString="Jeffreys, J. G. (1858) Gleanings in British Conchology. Annals and Magazine of Natural History, 1 (3), 39 - 48." type="journal article" year="1858">Jeffreys, 1858</bibRefCitation>
</taxonomicName>
, by 
<bibRefCitation id="607A468C206AB656FE0DFD859C60FDA6" author="Hartley" box="[420,593,552,578]" pageId="9" pageNumber="48" refString="Hartley, J. P. (1984) The benthic ecology of the Forties oil field (North Sea). Journal of Experimental Marine Biology and Ecology, 80, 161 - 195." type="journal article" year="1984">Hartley (1984)</bibRefCitation>
were actually specimens of 
<taxonomicName id="C3EB40FE206AB656FC09FD859A3FFDA5" box="[928,1038,552,577]" class="Bivalvia" family="Thyasiridae" genus="Adontorhina" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="similis">
<emphasis id="369FE76F206AB656FC09FD859A3FFDA5" box="[928,1038,552,577]" italics="true" pageId="9" pageNumber="46">A. similis</emphasis>
</taxonomicName>
(although Oliver &amp; Killeen listed them as 
<taxonomicName id="C3EB40FE206AB656FF53FDFD9FD8FD8D" box="[250,489,592,617]" class="Bivalvia" family="Thyasiridae" genus="Mendicula" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="pygmaea">
<emphasis id="369FE76F206AB656FF53FDFD9FD8FD8D" box="[250,489,592,617]" italics="true" pageId="9" pageNumber="46">Mendicula pygmaea</emphasis>
</taxonomicName>
). The 
<typeStatus id="DB5085DF206AB656FD91FDFD9C5BFD8E" box="[568,618,592,618]" pageId="9" pageNumber="46">type</typeStatus>
specimen of 
<taxonomicName id="C3EB40FE206AB656FCA0FDFD9DC9FD8D" box="[777,1016,592,617]" class="Bivalvia" family="Thyasiridae" genus="Thyasira" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="subtrigona">
<emphasis id="369FE76F206AB656FCA0FDFD9DC9FD8D" box="[777,1016,592,617]" italics="true" pageId="9" pageNumber="46">Thyasira subtrigona</emphasis>
</taxonomicName>
was destroyed (
<bibRefCitation id="607A468C206AB656FB11FDFD9B50FD8E" author="Jeffreys" box="[1208,1377,592,618]" pageId="9" pageNumber="48" refString="Jeffreys, J. G. (1864) Report of the committee appointed for exploring the coasts of Shetland by means of the dredge. Report of the British Association for the Advancement of Science (1863), 70 - 81." type="journal article" year="1864">Jeffreys, 1864</bibRefCitation>
) and has been considered a 
<emphasis id="369FE76F206AB656FE0FFDD59C67FD75" box="[422,598,632,657]" italics="true" pageId="9" pageNumber="46">nomen dubium</emphasis>
by van 
<bibRefCitation id="607A468C206AB656FD13FDD59A32FD76" author="Aartsen" box="[698,1027,632,658]" pageId="9" pageNumber="49" refString="Van Aartsen, J. J. &amp; Carrozza, F. (1997) On Lasaea pumila (S. V. Wood, 1851 and two new bivalves from European waters: Mancikellia divae n. sp. and Kelliopsis jozinae n. sp. (Bivalvia: Condylocardiidae and Montacutidae). La Conchiglia, 285, 28 - 34." type="journal article" year="1997">Aartsen &amp; Carrozza (1997)</bibRefCitation>
. Other authors have recognized 
<taxonomicName id="C3EB40FE206AB656FA2FFDD59F27FD5D" class="Bivalvia" family="Thyasiridae" genus="Thyasira" kingdom="Animalia" order="Lucinoida" pageId="9" pageNumber="46" phylum="Mollusca" rank="species" species="subtrigona">
<emphasis id="369FE76F206AB656FA2FFDD59BA5FD75" box="[1414,1428,632,657]" italics="true" pageId="9" pageNumber="46">T</emphasis>
. 
<emphasis id="369FE76F206AB656FF3EFD0D9F27FD5D" box="[151,278,672,697]" italics="true" pageId="9" pageNumber="46">subtrigona</emphasis>
</taxonomicName>
as a member of the superfamily Galeommatoidea (
<bibRefCitation id="607A468C206AB656FC28FD0D9A8AFD5E" author="Bowden" box="[897,1211,672,698]" pageId="9" pageNumber="48" refString="Bowden, J. &amp; Heppell, D. (1968) Revised list of British Mollusca 2. Unionacea - Cardiacea. Journal of Conchology, 26, 237 - 272." type="journal article" year="1968">Bowden &amp; Heppell, 1968</bibRefCitation>
; 
<bibRefCitation id="607A468C206AB656FB60FD0D9EE6FD06" author="Oliver" pageId="9" pageNumber="49" refString="Oliver, P. G. &amp; Killeen, I. J. (2002) The Thyasiridae (Mollusca: Bivalvia) of the British Continental Shelf and North Sea Oilfields. An identification manual. Cardiff: National Museums and Galleries of Wales. Biomor Reports, Vol. 3 Cardiff, Wales. 73 pp." type="book" year="2002">Oliver &amp; Killeen, 2002</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>