treatments-xml/data/03/F1/87/03F187DA6F65FFB8A3948F72FD0AFB79.xml
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<document id="F7E097F855B769FF910140601A97551D" ID-ISSN="1175­5334" IM.materialsCitations_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629766107079" checkinUser="felipe" docAuthor="Raines, Bret &amp; Huber, Markus" docDate="2012" docId="03F187DA6F65FFB8A3948F72FD0AFB79" docLanguage="en" docName="zt03217p106.pdf" docOrigin="Zootaxa 3217" docStyle="DocumentStyle:D239614CE4198176A422035174489AB1.4:Zootaxa.2009-2012.monograph" docStyleId="D239614CE4198176A422035174489AB1" docStyleName="Zootaxa.2009-2012.monograph" docStyleVersion="4" docTitle="Lasaea eastera Raines &amp; Huber 2012, sp. nov." docType="treatment" docVersion="3" lastPageNumber="53" masterDocId="FFC8FFA26F57FF8CA3038957FFD4FF85" masterDocTitle="3217" masterLastPageNumber="106" masterPageNumber="1" pageNumber="51" updateTime="1699109226814" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:namePart id="52AA27A0F82C5D842B9575C8E9CD8E7C">Raines, Bret</mods:namePart>
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<mods:namePart id="5DBE20CA69379062D5D113CADD4C430B">Huber, Markus</mods:namePart>
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<mods:date id="80DAD2E606B54FC8AC831F6EE12324FA">2012</mods:date>
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<mods:number id="814B1648D24EE6BD5721AC3F0E95ADF0">2012-02-29</mods:number>
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<treatment id="03F187DA6F65FFB8A3948F72FD0AFB79" ID-DOI="http://doi.org/10.5281/zenodo.5250671" ID-Zenodo-Dep="5250671" LSID="urn:lsid:plazi:treatment:03F187DA6F65FFB8A3948F72FD0AFB79" httpUri="http://treatment.plazi.org/id/03F187DA6F65FFB8A3948F72FD0AFB79" lastPageId="52" lastPageNumber="53" pageId="50" pageNumber="51">
<subSubSection id="C34265476F65FFBEA3948F72FE7BF9BA" box="[151,431,1573,1599]" pageId="50" pageNumber="51" type="nomenclature">
<paragraph id="8BE736CC6F65FFBEA3948F72FE7BF9BA" blockId="50.[151,431,1573,1632]" box="[151,431,1573,1599]" pageId="50" pageNumber="51">
<heading id="D0AF81A06F65FFBEA3948F72FE7BF9BA" bold="true" box="[151,431,1573,1599]" fontSize="11" level="1" pageId="50" pageNumber="51" reason="1">
<emphasis id="B92CEADE6F65FFBEA3948F72FE7BF9BA" bold="true" box="[151,431,1573,1599]" pageId="50" pageNumber="51">
<taxonomicName id="4C584D4F6F65FFBEA3948F72FE9EF9BA" ID-CoL="3SBT8" authority="Raines &amp; Huber, 2012" authorityName="Raines &amp; Huber" authorityYear="2012" box="[151,330,1573,1599]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="50" pageNumber="51" phylum="Mollusca" rank="species" species="eastera" status="sp. nov.">
<emphasis id="B92CEADE6F65FFBEA3948F72FE9EF9BA" bold="true" box="[151,330,1573,1599]" italics="true" pageId="50" pageNumber="51">Lasaea eastera</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21F57A56F65FFBEA2518F72FE7BF9BA" box="[338,431,1573,1599]" pageId="50" pageNumber="51" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C34265476F65FFBEA3948F1FFE9FF9E5" box="[151,331,1608,1632]" pageId="50" pageNumber="51" type="description">
<paragraph id="8BE736CC6F65FFBEA3948F1FFE9FF9E5" blockId="50.[151,431,1573,1632]" box="[151,331,1608,1632]" pageId="50" pageNumber="51">
<figureCitation id="13632A496F65FFBEA3948F1FFE9FF9E5" box="[151,331,1608,1632]" captionStart="FIGURE 26" captionStartId="51.[151,250,1802,1825]" captionTargetBox="[151,1436,301,1781]" captionTargetId="figure-122@51.[151,1436,301,1781]" captionTargetPageId="51" captionText="FIGURE 26. AH, Lasaea eastera sp. nov.; A, Exterior LV, 2.9 mm in length; B, Exterior RV of same specimen, SEM; C, Interior LV, 2 mm in length, SEM; D, Interior RV of same specimen, SEM; E, Close-up of the hinge, LV, SEM; F, Close-up of the hinge, RV, SEM; GH, Close-up of the prodissoconch, LV, SEM, arrows indicating boundaries." pageId="50" pageNumber="51">Figures 26 AH</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="C34265476F65FFBEA3948FC7FE8AF891" pageId="50" pageNumber="51" type="materials_examined">
<paragraph id="8BE736CC6F65FFBEA3948FC7FE83F949" blockId="50.[151,1436,1679,2028]" pageId="50" pageNumber="51">
<emphasis id="B92CEADE6F65FFBEA3948FC7FE99F92D" bold="true" box="[151,333,1679,1704]" pageId="50" pageNumber="51">Type Material.</emphasis>
<typeStatus id="54E3886E6F65FFBEA2568FC7FE15F92D" box="[341,449,1680,1704]" pageId="50" pageNumber="51" type="holotype">Holotype</typeStatus>
: LACM 3150, 1 articulated specimen,
<quantity id="4CA09B296F65FFBEA08A8FC7FC32F92D" box="[905,998,1680,1704]" metricMagnitude="-3" metricUnit="m" metricValue="2.9" pageId="50" pageNumber="51" unit="mm" value="2.9">2.9 mm</quantity>
.
<typeStatus id="54E3886E6F65FFBEA0F78FC6FB8EF92C" box="[1012,1114,1681,1705]" pageId="50" pageNumber="51" type="paratype">Paratype</typeStatus>
: LACM 3151, 1 articulated specimen,
<quantity id="4CA09B296F65FFBEA20D8FE3FE87F949" box="[270,339,1716,1740]" metricMagnitude="-3" metricUnit="m" metricValue="2.0" pageId="50" pageNumber="51" unit="mm" value="2.0">2 mm</quantity>
.
</paragraph>
<paragraph id="8BE736CC6F65FFBEA3C48F8FFE8AF891" blockId="50.[151,1436,1679,2028]" pageId="50" pageNumber="51">
<materialsCitation id="3B303C916F65FFBEA3C48F8FFE8DF891" county="Easter Island" elevation="55" latitude="-27.122223" location="Dredged" longLatPrecision="20" longitude="-109.441666" municipality="Tahai" pageId="50" pageNumber="51" specimenCount="1" typeStatus="holotype">
<emphasis id="B92CEADE6F65FFBEA3C48F8FFEA5F975" bold="true" box="[199,369,1751,1776]" pageId="50" pageNumber="51">
<typeStatus id="54E3886E6F65FFBEA3C48F8FFED7F975" box="[199,259,1752,1776]" pageId="50" pageNumber="51">Type</typeStatus>
Locality.
</emphasis>
<location id="8E8760176F65FFBEA2758F8FFE03F975" LSID="urn:lsid:plazi:treatment:03F187DA6F65FFB8A3948F72FD0AFB79:8E8760176F65FFBEA2758F8FFE03F975" box="[374,471,1752,1776]" county="Easter Island" latitude="-27.122223" longLatPrecision="20" longitude="-109.441666" municipality="Tahai" name="Dredged" pageId="50" pageNumber="51">Dredged</location>
at
<quantity id="4CA09B296F65FFBEA2F48F8FFD8EF975" box="[503,602,1752,1776]" metricMagnitude="1" metricUnit="m" metricValue="5.5" metricValueMax="8.0" metricValueMin="3.0" pageId="50" pageNumber="51" unit="m" value="55.0" valueMax="80.0" valueMin="30.0">
<elevation id="0075D1FF6F65FFBEA2F48F8FFD8EF975" box="[503,602,1752,1776]" metricMagnitude="1" metricUnit="m" metricValue="5.5" metricValueMax="8.0" metricValueMin="3.0" pageId="50" pageNumber="51" unit="m" value="55.0" valueMax="80.0" valueMin="30.0">3080 m</elevation>
</quantity>
in fine sand, off the western coastline near
<collectingMunicipality id="6B83ACB66F65FFBEA73E8F8FFBAAF975" box="[1085,1150,1752,1776]" pageId="50" pageNumber="51">Tahai</collectingMunicipality>
,
<collectingCounty id="62864E406F65FFBEA78A8F8EFAC8F975" box="[1161,1308,1752,1776]" pageId="50" pageNumber="51">Easter Island</collectingCounty>
,
<geoCoordinate id="EE6C500B6F65FFBEA6248F8FFF7CF891" degrees="27" direction="south" minutes="07" orientation="latitude" pageId="50" pageNumber="51" precision="15" seconds="20" value="-27.122223">27°0720” S</geoCoordinate>
,
<geoCoordinate id="EE6C500B6F65FFBEA3B78FABFE8DF891" box="[180,345,1788,1812]" degrees="109" direction="west" minutes="26" orientation="longitude" pageId="50" pageNumber="51" precision="15" seconds="30" value="-109.441666">109°2630” W</geoCoordinate>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C34265476F65FFB8A3C48E48FC23FBA1" lastPageId="52" lastPageNumber="53" pageId="50" pageNumber="51" type="description">
<paragraph id="8BE736CC6F65FFBFA3C48E48FCD7FF72" blockId="50.[151,1436,1679,2028]" lastBlockId="51.[151,1435,151,247]" lastPageId="51" lastPageNumber="52" pageId="50" pageNumber="51">
<emphasis id="B92CEADE6F65FFBEA3C48E48FE8CF8BD" bold="true" box="[199,344,1823,1848]" inLineHeading="true" pageId="50" pageNumber="51" reason="1">Description.</emphasis>
A small, translucent white
<taxonomicName id="4C584D4F6F65FFBEA18C8E76FCE8F8BD" box="[655,828,1824,1848]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="50" pageNumber="51" phylum="Mollusca" rank="species" species="undetermined">
<emphasis id="B92CEADE6F65FFBEA18C8E76FD34F8BD" box="[655,736,1825,1848]" italics="true" pageId="50" pageNumber="51">Lasaea</emphasis>
species
</taxonomicName>
, with narrow, subcentral umbones. Shell small, below
<quantity id="4CA09B296F65FFBEA3948E13FF0EF8D9" box="[151,218,1860,1884]" metricMagnitude="-3" metricUnit="m" metricValue="3.0" pageId="50" pageNumber="51" unit="mm" value="3.0">3 mm</quantity>
, equivalve, subequilateral, oval with almost straight ventral margin; thin and translucent; uniformly whitishyellow outside, whitish inside; umbones narrow, pointed, subcentral, weakly prosogyrate. Prodissoconch, P1surface somewhat eroded, ovate and pronounced, ca. 75 µm length by 50 µm height, P2 smooth, with nearly obsolete growth striae, ca. 350 µm length by 340 µm height. Adult valves weakly inflated. Sculpture of weak commarginal striae, rather widely and somewhat irregularly spaced, radial elements absent. Hinge line thin, cardinals largely fused to lamellar posterior lateral and to shorter lamellar anterior lateral, laterals separated by a wide depression. Pallial line continuous. Ligament elongate, very thin and very narrow, marginally, embedded posterior to the umbones; resilifer subumbonal. Margins smooth.
</paragraph>
<caption id="DF2766446F64FFBFA3948E5DFB51F8E0" pageId="51" pageNumber="52" startId="51.[151,250,1802,1825]" targetBox="[151,1436,301,1781]" targetPageId="51">
<paragraph id="8BE736CC6F64FFBFA3948E5DFB51F8E0" blockId="51.[151,1436,1802,1894]" pageId="51" pageNumber="52">
<emphasis id="B92CEADE6F64FFBFA3948E5DFE8FF8A4" bold="true" box="[151,347,1802,1825]" pageId="51" pageNumber="52">FIGURE 26. AH</emphasis>
,
<taxonomicName id="4C584D4F6F64FFBFA2698E5BFDD2F8A4" authority="Raines &amp; Huber, 2012" authorityName="Raines &amp; Huber" authorityYear="2012" box="[362,518,1804,1825]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="51" pageNumber="52" phylum="Mollusca" rank="species" species="eastera" status="sp. nov.">
<emphasis id="B92CEADE6F64FFBFA2698E5BFDD2F8A4" box="[362,518,1804,1825]" italics="true" pageId="51" pageNumber="52">Lasaea eastera</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21F57A56F64FFBFA10D8E5CFDB5F8A5" box="[526,609,1803,1824]" pageId="51" pageNumber="52" rank="species">sp. nov.</taxonomicNameLabel>
;
<emphasis id="B92CEADE6F64FFBFA16E8E5DFDABF8A4" bold="true" box="[621,639,1802,1825]" pageId="51" pageNumber="52">A</emphasis>
, Exterior LV, 2.9 mm in length;
<emphasis id="B92CEADE6F64FFBFA0D68E5CFC32F8A5" bold="true" box="[981,998,1803,1824]" pageId="51" pageNumber="52">B</emphasis>
, Exterior RV of same specimen, SEM;
<emphasis id="B92CEADE6F64FFBFA6808E5DFA41F8A4" bold="true" box="[1411,1429,1802,1825]" pageId="51" pageNumber="52">C</emphasis>
, Interior LV, 2 mm in length, SEM;
<emphasis id="B92CEADE6F64FFBFA2FF8E7BFDDAF8C4" bold="true" box="[508,526,1836,1857]" pageId="51" pageNumber="52">D</emphasis>
, Interior RV of same specimen, SEM;
<emphasis id="B92CEADE6F64FFBFA0998E7BFC7FF8C4" bold="true" box="[922,939,1836,1857]" pageId="51" pageNumber="52">E</emphasis>
, Close-up of the hinge, LV, SEM;
<emphasis id="B92CEADE6F64FFBFA6098E7BFAC3F8C4" bold="true" box="[1290,1303,1836,1857]" pageId="51" pageNumber="52">F</emphasis>
, Close-up of the hinge, RV, SEM;
<emphasis id="B92CEADE6F64FFBFA26E8E18FE75F8E3" bold="true" box="[365,417,1871,1894]" pageId="51" pageNumber="52">GH</emphasis>
, Close-up of the prodissoconch, LV, SEM, arrows indicating boundaries.
</paragraph>
</caption>
<caption id="DF2766446F63FFB8A39489CFFCD1FF2A" box="[151,773,152,176]" pageId="52" pageNumber="53" startId="52.[151,241,152,176]">
<paragraph id="8BE736CC6F63FFB8A39489CFFCD1FF2A" blockId="52.[151,773,152,176]" box="[151,773,152,176]" pageId="52" pageNumber="53">
<emphasis id="B92CEADE6F63FFB8A39489CFFEDDFF35" bold="true" box="[151,265,152,176]" pageId="52" pageNumber="53">TABLE 3.</emphasis>
Selected measurements from the type material.
</paragraph>
</caption>
<paragraph id="8BE736CC6F63FFB8A3A68985FA93FEC5" pageId="52" pageNumber="53">
<table id="F958C46C6F630073A3A68986FAB1FEC5" box="[165,1381,209,320]" colsContinueFrom="9.[165,1385,1248,1402]" colsContinueIn="53.[165,1386,1678,1878]" gridcols="5" gridrows="3" pageId="52" pageNumber="53">
<tr id="3568348E6F630073A3A68986FAB1FF62" box="[165,1381,209,231]" gridrow="0" pageId="52" pageNumber="53">
<th id="76B95DF26F630073A3A68986FEB1FF62" box="[165,357,209,231]" gridcol="0" gridrow="0" pageId="52" pageNumber="53">
<emphasis id="B92CEADE6F63FFB8A3A68985FEB1FF62" bold="true" box="[165,357,210,231]" pageId="52" pageNumber="53">
<taxonomicName id="4C584D4F6F63FFB8A3A68985FEDFFF62" authority="Raines &amp; Huber, 2012" authorityName="Raines &amp; Huber" authorityYear="2012" box="[165,267,210,231]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="eastera" status="sp. nov.">
<emphasis id="B92CEADE6F63FFB8A3A68985FEDFFF62" bold="true" box="[165,267,210,231]" italics="true" pageId="52" pageNumber="53">L. eastera</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21F57A56F63FFB8A2118985FEB1FF62" box="[274,357,210,231]" pageId="52" pageNumber="53" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</th>
<th id="76B95DF26F630073A1108986FD4DFF62" box="[531,665,209,231]" gridcol="1" gridrow="0" pageId="52" pageNumber="53">Length (mm)</th>
<th id="76B95DF26F630073A1DD8986FCB5FF62" box="[734,865,209,231]" gridcol="2" gridrow="0" pageId="52" pageNumber="53">Height (mm)</th>
<th id="76B95DF26F630073A0B28986FB89FF62" box="[945,1117,209,231]" gridcol="3" gridrow="0" pageId="52" pageNumber="53">P1 (L x H) (µm)</th>
<th id="76B95DF26F630073A7BA8986FAB1FF62" box="[1209,1381,209,231]" gridcol="4" gridrow="0" pageId="52" pageNumber="53">P2 (L x H) (µm)</th>
</tr>
<tr id="3568348E6F630073A3A689AAFAB1FE96" box="[165,1381,253,275]" gridrow="1" pageId="52" pageNumber="53">
<th id="76B95DF26F630073A3A689AAFEB1FE96" box="[165,357,253,275]" gridcol="0" gridrow="1" pageId="52" pageNumber="53">Holotype</th>
<td id="76B95DF26F630073A11089AAFD4DFE96" box="[531,665,253,275]" gridcol="1" gridrow="1" pageId="52" pageNumber="53">2.9</td>
<td id="76B95DF26F630073A1DD89AAFCB5FE96" box="[734,865,253,275]" gridcol="2" gridrow="1" pageId="52" pageNumber="53">2.6</td>
<td id="76B95DF26F630073A0B289AAFB89FE96" box="[945,1117,253,275]" gridcol="3" gridrow="1" pageId="52" pageNumber="53">not visible</td>
<td id="76B95DF26F630073A7BA89AAFAB1FE96" box="[1209,1381,253,275]" gridcol="4" gridrow="1" pageId="52" pageNumber="53">375 x 370</td>
</tr>
<tr id="3568348E6F630073A3A6887DFAB1FEC5" box="[165,1381,298,320]" gridrow="2" pageId="52" pageNumber="53">
<th id="76B95DF26F630073A3A6887DFEB1FEC5" box="[165,357,298,320]" gridcol="0" gridrow="2" pageId="52" pageNumber="53">Paratype 1</th>
<td id="76B95DF26F630073A110887DFD4DFEC5" box="[531,665,298,320]" gridcol="1" gridrow="2" pageId="52" pageNumber="53">2</td>
<td id="76B95DF26F630073A1DD887DFCB5FEC5" box="[734,865,298,320]" gridcol="2" gridrow="2" pageId="52" pageNumber="53">1.8</td>
<td id="76B95DF26F630073A0B2887DFB89FEC5" box="[945,1117,298,320]" gridcol="3" gridrow="2" pageId="52" pageNumber="53">ca. 75 x 50</td>
<td id="76B95DF26F630073A7BA887DFAB1FEC5" box="[1209,1381,298,320]" gridcol="4" gridrow="2" pageId="52" pageNumber="53">320 x 310</td>
</tr>
</table>
</paragraph>
<paragraph id="8BE736CC6F63FFB8A39488D3FE13FD8D" blockId="52.[151,1436,388,1277]" pageId="52" pageNumber="53">
<emphasis id="B92CEADE6F63FFB8A39488D3FE66FE18" bold="true" box="[151,434,388,413]" inLineHeading="true" pageId="52" pageNumber="53" reason="1">Comparative diagnosis.</emphasis>
<taxonomicName id="4C584D4F6F63FFB8A2B988D2FD44FE19" authorityName="Dall, Bartsch &amp; Rehder" authorityYear="1938" box="[442,656,388,412]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="hawaiensis">
<emphasis id="B92CEADE6F63FFB8A2B988D2FD44FE19" box="[442,656,388,412]" italics="true" pageId="52" pageNumber="53">Lasaea hawaiensis</emphasis>
</taxonomicName>
, originally described from the Hawaiian Islands, was recorded early by
<bibRefCitation id="EFC94B3D6F63FFB8A3BF88FFFEB5FE45" author="Rehder, H. A." box="[188,353,424,448]" pageId="52" pageNumber="53" refId="ref59059" refString="Rehder, H. A. (1980) The marine mollusks of Easter Island (Isla de Pascua) and Sala y Gomez. Smithsonian Contributions to Zoology, Number 289, 167 pp." type="book" year="1980">Rehder (1980)</bibRefCitation>
from
<emphasis id="B92CEADE6F63FFB8A2A888FEFE12FE45" box="[427,454,425,448]" italics="true" pageId="52" pageNumber="53">EI</emphasis>
and is present with numerous specimens. However, these are very uniform in shape, solidity and color, typically with reddish staining in the umbonal area. No other
<taxonomicName id="4C584D4F6F63FFB8A71B889AFB15FE61" box="[1048,1217,460,484]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="undetermined">
<emphasis id="B92CEADE6F63FFB8A71B889AFBBDFE61" box="[1048,1129,461,484]" italics="true" pageId="52" pageNumber="53">Lasaea</emphasis>
species
</taxonomicName>
has been described from the Hawaiian Islands.
</paragraph>
<paragraph id="8BE736CC6F63FFB8A3C48B43FC23FD1D" blockId="52.[151,1436,388,1277]" pageId="52" pageNumber="53">
The new species has the same basic hinge configuration, though with a weaker, narrower hinge line and finer dentition. The structure is more fragile and translucent. The color is whitish and absent of any staining. The commarginal lines are wider and somewhat irregular. The umbones of adult
<taxonomicName id="4C584D4F6F63FFB8A0C78B0AFBE0FDF1" authorityName="Raines &amp; Huber" authorityYear="2012" box="[964,1076,605,628]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="eastera">
<emphasis id="B92CEADE6F63FFB8A0C78B0AFBE0FDF1" box="[964,1076,605,628]" italics="true" pageId="52" pageNumber="53">L. eastera</emphasis>
</taxonomicName>
are most notably more pointed, narrower and stronger, exceeding the dorsal line and nearly centrally located.
</paragraph>
<paragraph id="8BE736CC6F63FFB8A3C48BF2FE00FCAD" blockId="52.[151,1436,388,1277]" pageId="52" pageNumber="53">
<taxonomicName id="4C584D4F6F63FFB8A3C48BF2FD9DFD39" authority="(Lamarck, 1818)" baseAuthorityName="Lamarck" baseAuthorityYear="1818" box="[199,585,676,700]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="australis">
<emphasis id="B92CEADE6F63FFB8A3C48BF2FE56FD39" box="[199,386,676,700]" italics="true" pageId="52" pageNumber="53">Lasaea australis</emphasis>
(
<bibRefCitation id="EFC94B3D6F63FFB8A2928BF3FD95FD39" author="Lamarck, J. B. P. A. de" box="[401,577,676,700]" pageId="52" pageNumber="53" refId="ref56240" refString="Lamarck, J. B. P. A. de (1818) Histoire naturelle des animaux sans vertebres, presentant les caracteres generaux et particuliers de ces animaux, leur distribution, leurs classes, leurs familles, leurs genres, et la citation des principales especes qui s'y rapportent; precedee d'une introduction offrant la determination des caracteres essentiels de l'animal, sa distinction du vegetal et des autres corps naturels, enfin, l'exposition des principes fondamentaux de la zoologie. Deterville &amp; Verdiere, Paris, 5, 612 pp." type="book" year="1818">Lamarck, 1818</bibRefCitation>
)
</taxonomicName>
, from
<collectingRegion id="499CF82E6F63FFB8A1978BF3FC91FD39" box="[660,837,676,700]" country="Australia" name="South Australia" pageId="52" pageNumber="53">South Australia</collectingRegion>
is more solid, with distinct color, stronger sculpture, and rather trigonal in shape with posteriorly placed umbones. It also grows to a much larger size,
<quantity id="4CA09B296F63FFB8A7E58B9FFA94FD65" box="[1254,1344,712,736]" metricMagnitude="-3" metricUnit="m" metricValue="6.5" pageId="52" pageNumber="53" unit="mm" value="6.5">6.5 mm</quantity>
.
<taxonomicName id="4C584D4F6F63FFB8A6488B9EFD49FC81" authority="O Foighil &amp; Thiriot-Quievreux, 1999" authorityName="O Foighil &amp; Thiriot-Quievreux" authorityYear="1999" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="colmani">
<emphasis id="B92CEADE6F63FFB8A6488B9EFF25FC81" italics="true" pageId="52" pageNumber="53">Lasaea colmani</emphasis>
Ó
<bibRefCitation id="EFC94B3D6F63FFB8A2108BBBFD49FC81" author="Foighil, D. &amp; Thiriot-Quievreux, C." box="[275,669,748,772]" pageId="52" pageNumber="53" pagination="477 - 494" refId="ref57788" refString="O Foighil, D. &amp; Thiriot-Quievreux, C. (1999) Sympatric Australian Lasaea species. (Mollusca: Bivalvia) differ in their ploidy levels, reproductive modes and developmental modes. Zoological Journal of the Linnean Society, 127 (4), 477 - 494." type="journal article" year="1999">Foighil &amp; Thiriot-Quiévreux, 1999</bibRefCitation>
</taxonomicName>
, from Sydney is less than half the size, broader with very low broad, posteriorly placed umbones.
</paragraph>
<paragraph id="8BE736CC6F63FFB8A3C48A62FC23FBA1" blockId="52.[151,1436,388,1277]" pageId="52" pageNumber="53">
Numerous species have been described from
<collectingCountry id="F34F765C6F63FFB8A1BE8A62FC83FCC9" box="[701,855,820,844]" name="New Zealand" pageId="52" pageNumber="53">New Zealand</collectingCountry>
. Thereof,
<taxonomicName id="4C584D4F6F63FFB8A0C58A62FB03FCC9" authority="Finlay, 1928" authorityName="Finlay" authorityYear="1928" box="[966,1239,820,844]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="hinemoa">
<emphasis id="B92CEADE6F63FFB8A0C58A62FB90FCC9" box="[966,1092,820,844]" italics="true" pageId="52" pageNumber="53">L. hinemoa</emphasis>
<bibRefCitation id="EFC94B3D6F63FFB8A7498A63FB03FCC9" author="Finlay, H. J." box="[1098,1239,820,844]" pageId="52" pageNumber="53" pagination="232 - 286" refId="ref53689" refString="Finlay, H. J. (1928) The recent Mollusca of the Chathman Islands. Transactions and Proceedings of the of the Royal Society of New Zealand, 59, 232 - 286." type="journal article" year="1928">Finlay, 1928</bibRefCitation>
</taxonomicName>
, (syn.
<taxonomicName id="4C584D4F6F63FFB8A6238A62FEF2FCF5" authority="Finlay, 1928" authorityName="Finlay" authorityYear="1928" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="rossiana">
<emphasis id="B92CEADE6F63FFB8A6238A62FA4FFCC9" box="[1312,1435,821,844]" italics="true" pageId="52" pageNumber="53">L. rossiana</emphasis>
<bibRefCitation id="EFC94B3D6F63FFB8A3948A0FFEF2FCF5" author="Finlay, H. J." box="[151,294,856,880]" pageId="52" pageNumber="53" pagination="232 - 286" refId="ref53689" refString="Finlay, H. J. (1928) The recent Mollusca of the Chathman Islands. Transactions and Proceedings of the of the Royal Society of New Zealand, 59, 232 - 286." type="journal article" year="1928">Finlay, 1928</bibRefCitation>
</taxonomicName>
), is similar in shape and color to
<taxonomicName id="4C584D4F6F63FFB8A19E8A0EFCECFCF5" authorityName="Dall, Bartsch &amp; Rehder" authorityYear="1938" box="[669,824,856,880]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="hawaiensis">
<emphasis id="B92CEADE6F63FFB8A19E8A0EFCECFCF5" box="[669,824,856,880]" italics="true" pageId="52" pageNumber="53">L. hawaiensis</emphasis>
</taxonomicName>
, and shares similar distinctive markings as
<taxonomicName id="4C584D4F6F63FFB8A6278A0EFA41FCF5" authorityName="Raines &amp; Huber" authorityYear="2012" box="[1316,1429,857,880]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="eastera">
<emphasis id="B92CEADE6F63FFB8A6278A0EFA41FCF5" box="[1316,1429,857,880]" italics="true" pageId="52" pageNumber="53">L. eastera</emphasis>
</taxonomicName>
, notably colors and stronger hinge.
<taxonomicName id="4C584D4F6F63FFB8A11F8A2AFD00FC11" authorityName="Finlay" authorityYear="1928" box="[540,724,892,916]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="hinemoa">
<emphasis id="B92CEADE6F63FFB8A11F8A2AFD00FC11" box="[540,724,892,916]" italics="true" pageId="52" pageNumber="53">Lasaea hinemoa</emphasis>
</taxonomicName>
also grows larger (
<quantity id="4CA09B296F63FFB8A0A88A2BFBD7FC11" box="[939,1027,892,916]" metricMagnitude="-3" metricUnit="m" metricValue="4.6" pageId="52" pageNumber="53" unit="mm" value="4.6">4.6 mm</quantity>
) than the
<emphasis id="B92CEADE6F63FFB8A7708A2AFB5AFC11" box="[1139,1166,893,916]" italics="true" pageId="52" pageNumber="53">EI</emphasis>
species.
<taxonomicName id="4C584D4F6F63FFB8A7F08A2AFEEEFC3D" authority="(Powell 1933)" baseAuthorityName="Powell" baseAuthorityYear="1933" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="maoria">
<emphasis id="B92CEADE6F63FFB8A7F08A2AFA48FC11" box="[1267,1436,893,916]" italics="true" pageId="52" pageNumber="53">Lasaea maoria</emphasis>
(
<bibRefCitation id="EFC94B3D6F63FFB8A39D8AF7FEE6FC3D" author="Powell, A. W. B." box="[158,306,928,952]" pageId="52" pageNumber="53" pagination="181 - 208" refId="ref58626" refString="Powell, A. W. B. (1933) The marine Mollusca of the Chatham Islands. Records of the Auckland Institute and Museum, 1 (4), 181 - 208." type="journal article" year="1933">Powell 1933</bibRefCitation>
)
</taxonomicName>
, shares its fragile structure, small size and white color with that of
<taxonomicName id="4C584D4F6F63FFB8A73C8AF6FB64FC3D" authorityName="Raines &amp; Huber" authorityYear="2012" box="[1087,1200,929,952]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="eastera">
<emphasis id="B92CEADE6F63FFB8A73C8AF6FB64FC3D" box="[1087,1200,929,952]" italics="true" pageId="52" pageNumber="53">L. eastera</emphasis>
</taxonomicName>
, but the pronounced broader umbones and the lower and broader shape do not match. In addition, the hinge line of
<taxonomicName id="4C584D4F6F63FFB8A7B88A92FAFFFC59" authorityName="Raines &amp; Huber" authorityYear="2012" box="[1211,1323,965,988]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="eastera">
<emphasis id="B92CEADE6F63FFB8A7B88A92FAFFFC59" box="[1211,1323,965,988]" italics="true" pageId="52" pageNumber="53">L. eastera</emphasis>
</taxonomicName>
is narrow and the dentition weak, whereas even the smaller
<taxonomicName id="4C584D4F6F63FFB8A1C78ABEFCE7FB85" baseAuthorityName="Powell" baseAuthorityYear="1933" box="[708,819,1001,1024]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="maoria">
<emphasis id="B92CEADE6F63FFB8A1C78ABEFCE7FB85" box="[708,819,1001,1024]" italics="true" pageId="52" pageNumber="53">L. maoria</emphasis>
</taxonomicName>
has a comparatively more solid and stronger dentition.
<taxonomicName id="4C584D4F6F63FFB8A3948D5AFDF5FBA1" authority="Powell, 1935" authorityName="Powell" authorityYear="1935" box="[151,545,1036,1060]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="parengaensis">
<emphasis id="B92CEADE6F63FFB8A3948D5AFE57FBA1" box="[151,387,1037,1060]" italics="true" pageId="52" pageNumber="53">Lasaea parengaensis</emphasis>
<bibRefCitation id="EFC94B3D6F63FFB8A2898D5BFDF5FBA1" author="Powell, A. W. B." box="[394,545,1036,1060]" pageId="52" pageNumber="53" pagination="29 - 39" refId="ref58662" refString="Powell, A. W. B. (1935) Marine Mullusca from the Bounty Islands. Records of the Canterbury Museum, 4, 29 - 39." type="journal article" year="1935">Powell, 1935</bibRefCitation>
</taxonomicName>
, is very distinct in oblique-trigonal shape.
</paragraph>
</subSubSection>
<subSubSection id="C34265476F63FFB8A3C48D66FEB5FB31" pageId="52" pageNumber="53" type="discussion">
<paragraph id="8BE736CC6F63FFB8A3C48D66FB78FBCD" blockId="52.[151,1436,388,1277]" box="[199,1196,1072,1097]" pageId="52" pageNumber="53">
<emphasis id="B92CEADE6F63FFB8A3C48D66FEEFFBCC" bold="true" box="[199,315,1073,1097]" inLineHeading="true" pageId="52" pageNumber="53" reason="1">Remarks.</emphasis>
While
<taxonomicName id="4C584D4F6F63FFB8A28E8D66FDF3FBCD" authorityName="Dall, Bartsch &amp; Rehder" authorityYear="1938" box="[397,551,1072,1096]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="hawaiensis">
<emphasis id="B92CEADE6F63FFB8A28E8D66FDF3FBCD" box="[397,551,1072,1096]" italics="true" pageId="52" pageNumber="53">L. hawaiensis</emphasis>
</taxonomicName>
is commonly encountered,
<taxonomicName id="4C584D4F6F63FFB8A05E8D66FC19FBCD" authorityName="Raines &amp; Huber" authorityYear="2012" box="[861,973,1073,1096]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="eastera">
<emphasis id="B92CEADE6F63FFB8A05E8D66FC19FBCD" box="[861,973,1073,1096]" italics="true" pageId="52" pageNumber="53">L. eastera</emphasis>
</taxonomicName>
is very uncommon.
</paragraph>
<paragraph id="8BE736CC6F63FFB8A3948D03FEB5FB31" blockId="52.[151,1436,388,1277]" pageId="52" pageNumber="53">
The deeper habitat of the two
<emphasis id="B92CEADE6F63FFB8A2EE8D02FDDCFBE9" box="[493,520,1109,1132]" italics="true" pageId="52" pageNumber="53">EI</emphasis>
species is highly unusual compared to the otherwise shallow global
<taxonomicName id="4C584D4F6F63FFB8A6178D02FF1EFB15" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="undetermined">
<emphasis id="B92CEADE6F63FFB8A6178D02FAB1FBE9" box="[1300,1381,1109,1132]" italics="true" pageId="52" pageNumber="53">Lasaea</emphasis>
species.
</taxonomicName>
This change in habitat is probably influenced by the active downslope sediment transport noted by
<bibRefCitation id="EFC94B3D6F63FFB8A6268D2FFED4FB31" author="DiSalvo, L. H. &amp; Randall, J. E. &amp; Cea, A." pageId="52" pageNumber="53" pagination="451 - 473" refId="ref53512" refString="DiSalvo, L. H., Randall, J. E. &amp; Cea, A. (1988) Ecological reconnaissance of Easter Island sublittoral marine environment. National Geographic Research, 4, 451 - 473." type="journal article" year="1988">
DiSalvo
<emphasis id="B92CEADE6F63FFB8A68B8D2EFF79FB31" italics="true" pageId="52" pageNumber="53">et al</emphasis>
. (1988
</bibRefCitation>
: p. 454).
</paragraph>
</subSubSection>
<subSubSection id="C34265476F63FFB8A3C48D97FBBAFB5D" box="[199,1134,1216,1241]" pageId="52" pageNumber="53" type="distribution">
<paragraph id="8BE736CC6F63FFB8A3C48D97FBBAFB5D" blockId="52.[151,1436,388,1277]" box="[199,1134,1216,1241]" pageId="52" pageNumber="53">
<emphasis id="B92CEADE6F63FFB8A3C48D97FEB4FB5C" bold="true" box="[199,352,1216,1241]" inLineHeading="true" pageId="52" pageNumber="53" reason="1">Distribution.</emphasis>
At present
<taxonomicName id="4C584D4F6F63FFB8A2E18D96FD58FB5D" authorityName="Raines &amp; Huber" authorityYear="2012" box="[482,652,1217,1240]" class="Bivalvia" family="Lasaeidae" genus="Lasaea" kingdom="Animalia" order="Galeommatida" pageId="52" pageNumber="53" phylum="Mollusca" rank="species" species="eastera">
<emphasis id="B92CEADE6F63FFB8A2E18D96FD58FB5D" box="[482,652,1217,1240]" italics="true" pageId="52" pageNumber="53">Lasaea eastera</emphasis>
</taxonomicName>
is only known from the
<typeStatus id="54E3886E6F63FFB8A09C8D96FC1BFB5C" box="[927,975,1217,1241]" pageId="52" pageNumber="53">type</typeStatus>
locality—
<emphasis id="B92CEADE6F63FFB8A7448D97FBB3FB5C" bold="true" box="[1095,1127,1216,1241]" pageId="52" pageNumber="53">E1</emphasis>
.
</paragraph>
</subSubSection>
<subSubSection id="C34265476F63FFB8A3C48DB3FD0AFB79" box="[199,734,1252,1277]" pageId="52" pageNumber="53" type="etymology">
<paragraph id="8BE736CC6F63FFB8A3C48DB3FD0AFB79" blockId="52.[151,1436,388,1277]" box="[199,734,1252,1277]" pageId="52" pageNumber="53">
<emphasis id="B92CEADE6F63FFB8A3C48DB3FE99FB79" bold="true" box="[199,333,1252,1276]" inLineHeading="true" pageId="52" pageNumber="53" reason="1">Etymology.</emphasis>
The name reflects the
<typeStatus id="54E3886E6F63FFB8A14E8DB2FDA9FB78" box="[589,637,1253,1277]" pageId="52" pageNumber="53">type</typeStatus>
locality.
</paragraph>
</subSubSection>
</treatment>
</document>