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<document id="3E338AEDD0241AA577BA276D36F75689" ID-CLB-Dataset="299054" ID-DOI="10.5281/zenodo.12117576" ID-GBIF-Dataset="9ec266f5-1dc7-4272-9fbc-67c7f2b0f5aa" ID-ISSN="0026-279X" ID-Zenodo-Dep="12117576" IM.bibliography_approvedBy="valdenar" IM.illustrations_approvedBy="valdenar" IM.materialsCitations_approvedBy="valdenar" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="valdenar" checkinTime="1718741462746" checkinUser="felipe" docAuthor="Lobban, Christopher S." docDate="2015" docId="03826143FF98817DFF34F9E11643F820" docLanguage="en" docName="Micronesica.2015.02.1-49.pdf" docOrigin="Micronesica 2015 (2)" docStyle="DocumentStyle:73477DD41873F4E732E2765E250AF97D.1:Micronesica.2013-.journal_article.type1" docStyleId="73477DD41873F4E732E2765E250AF97D" docStyleName="Micronesica.2013-.journal_article.type1" docStyleVersion="1" docTitle="Colliculoamphora gabgabensis Lobban 2015, n. sp." docType="treatment" docVersion="5" lastPageNumber="5" masterDocId="FFBB193BFF9B8179FFDCFF9E1460FD3F" masterDocTitle="Benthic marine diatom flora of Guam: new records, redescription of Psammodictyon pustulatum n. comb., n. stat., and three new species (Colliculoamphora gabgabensis, Lauderia excentrica, and Rhoiconeis pagoensis)" masterLastPageNumber="49" masterPageNumber="1" pageNumber="4" updateTime="1719541204275" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-NC-ND-4.0">
<mods:mods id="04EC2EF459451BA35ADF8E87205158F1" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="E378252EFC34F95E5C90D57CB988865E">
<mods:title id="B66215237514E442F6C1C217614FFEA5">Benthic marine diatom flora of Guam: new records, redescription of Psammodictyon pustulatum n. comb., n. stat., and three new species (Colliculoamphora gabgabensis, Lauderia excentrica, and Rhoiconeis pagoensis)</mods:title>
</mods:titleInfo>
<mods:name id="A0C218954D36655154B13706BE2A81DB" type="personal">
<mods:role id="0483F9F85B7063D8D38A03F3C9FF07A4">
<mods:roleTerm id="C79B3099966349ECFBFF490A995A7B8E">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="55E0AE58563E3D127CB0879C20ED22A9">Lobban, Christopher S.</mods:namePart>
<mods:affiliation id="6158583C9F94C7FB235352A63C25C9C0">Division of Natural Sciences, University of Guam, Mangilao, GU 83823, USA e-mail: clobban @ guam. net</mods:affiliation>
<mods:nameIdentifier id="FD303057D54D614AD0E6535CFFDB9EE0" type="email">clobban@guam.net</mods:nameIdentifier>
</mods:name>
<mods:typeOfResource id="51A9CCB53BD7F2B6EB6FFF1AF485841A">text</mods:typeOfResource>
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<mods:title id="F4146C9DAC53BB73CB979C2353D5E81C">Micronesica</mods:title>
</mods:titleInfo>
<mods:part id="245DB9EAD6019BF4667FA8677B2D65BB">
<mods:date id="A073DCD0070896D4C511D908186F4309">2015</mods:date>
<mods:detail id="25B8BF919A8F6360094862E6321E043F" type="volume">
<mods:number id="2F22C5951BFBFEA714A1CEF665B82238">2015</mods:number>
</mods:detail>
<mods:detail id="950496D5D146A1D27E75C1D5A30EF1D7" type="issue">
<mods:number id="A488F61761A474C0DFAD0523883A6421">2</mods:number>
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<mods:classification id="452F8B19E90C94EA64336E16C51E9852">journal article</mods:classification>
<mods:identifier id="41A96AC5019F4FCDD81E952D6370CEB5" type="CLB-Dataset">299054</mods:identifier>
<mods:identifier id="10FB855BF342AE75BBCAD52190898426" type="DOI">10.5281/zenodo.12117576</mods:identifier>
<mods:identifier id="0313F0285739D8149811C63443C1F17B" type="GBIF-Dataset">9ec266f5-1dc7-4272-9fbc-67c7f2b0f5aa</mods:identifier>
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<mods:identifier id="57D618D0F99BEDDE9DC0C76EC94C6670" type="Zenodo-Dep">12117576</mods:identifier>
</mods:mods>
<treatment id="03826143FF98817DFF34F9E11643F820" ID-DOI="http://doi.org/10.5281/zenodo.12575989" ID-GBIF-Taxon="233814364" ID-Zenodo-Dep="12575989" LSID="urn:lsid:plazi:treatment:03826143FF98817DFF34F9E11643F820" httpUri="http://treatment.plazi.org/id/03826143FF98817DFF34F9E11643F820" lastPageId="4" lastPageNumber="5" pageId="3" pageNumber="4">
<subSubSection id="C33183DEFF98817AFF34F9E11114FBA7" box="[232,1396,1663,1688]" pageId="3" pageNumber="4" type="nomenclature">
<paragraph id="8B94D055FF98817AFF34F9E11114FBA7" blockId="3.[232,1402,1663,1859]" box="[232,1396,1663,1688]" pageId="3" pageNumber="4">
<heading id="D0DC6739FF98817AFF34F9E11114FBA7" box="[232,1396,1663,1688]" centered="true" fontSize="11" level="2" pageId="3" pageNumber="4" reason="2">
<emphasis id="B95F0C47FF98817AFF34F9E1177AFBA7" bold="true" box="[232,794,1663,1688]" pageId="3" pageNumber="4">
<taxonomicName id="4C2BABD6FF98817AFF34F9E116AAFBA7" authority="Lobban" authorityName="Lobban" authorityYear="2015" box="[232,714,1663,1688]" class="Bacillariophyceae" family="Eunotiaceae" genus="Colliculoamphora" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Eunotiales" pageId="3" pageNumber="4" phylum="Ochrophyta" rank="species" species="gabgabensis" status="sp. nov.">
<emphasis id="B95F0C47FF98817AFF34F9E1163FFBA7" bold="true" box="[232,607,1663,1688]" italics="true" pageId="3" pageNumber="4">Colliculoamphora gabgabensis</emphasis>
Lobban
</taxonomicName>
,
<taxonomicNameLabel id="A26CB13CFF98817AFD0BF9E1177AFBA7" box="[727,794,1663,1688]" pageId="3" pageNumber="4" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
<figureCitation id="1310CCD0FF98817AFB2DF9E11114FBA7" box="[1265,1396,1663,1688]" captionStart="Figures 22–40" captionStartId="29.[292,372,821,844]" captionTargetId="figure-14@30.[232,1402,328,1768]" captionTargetPageId="30" captionText="Figures 22–40. Figs 22–26. Cocconeis ornata, two valves at two focal planes each in DIC and external view in SEM (GU44AU-2). Figs 27–32. Cocconeis subtilissima. Figs 27, 28. Frustules in LM (GU44I-2, GU44Z-15) (DIC). Figs 29, 30. RV external and internal with valvocopula (GU44AQ-1). Figs 31, 32. SV external (whole mount, GU44AC-4), showing the alveolae at the fracture (arrow), and internal (GU44AQ-1). Figs 33–40. Colliculoamphora gabgabensis. Fig. 33. Holotype specimen (GU44AK-6) (DIC). Fig. 34. Paratype specimen (GU44I-1) (DIC). Fig. 35. Specimen showing deeper indentation (GU44AK-6). Figs 36–38. External views, showing the eunotid position of the raphe; arrows on Fig. 37 indicate short striae; Fig. 38 shows girdle bands (GU44AK-6, GU44Z-15, GU52Q-10a, respectively) (SEM). Figs 39, 40. Internal views (GU44W- 10, GU44K-6) (SEM). Scale bars: Figs 22–36 = 5 µm, Figs 37, 38 = 2.5 µm, Figs 39, 40 = 2 µm." figureDoi="http://doi.org/10.5281/zenodo.12575959" httpUri="https://zenodo.org/record/12575959/files/figure.png" pageId="3" pageNumber="4">Figs 33–40</figureCitation>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C33183DEFF98817DFF34F93F1085FC14" lastPageId="4" lastPageNumber="5" pageId="3" pageNumber="4" type="description">
<paragraph id="8B94D055FF98817AFF34F93F1686FB85" blockId="3.[232,1402,1663,1859]" box="[232,742,1697,1722]" pageId="3" pageNumber="4">
<taxonomicName id="4C2BABD6FF98817AFF34F93F1587FB85" authority="Silva" authorityName="Silva" box="[232,487,1697,1722]" class="Bacillariophyceae" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Eunotiales" pageId="3" pageNumber="4" phylum="Ochrophyta" rank="order">EUNOTIALES Silva</taxonomicName>
:
<taxonomicName id="4C2BABD6FF98817AFE2DF93F1686FB85" authority="Kutzing" authorityName="Kutzing" box="[497,742,1697,1722]" class="Bacillariophyceae" family="Eunotiaceae" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Eunotiales" pageId="3" pageNumber="4" phylum="Ochrophyta" rank="family">Eunotiaceae Kützing</taxonomicName>
</paragraph>
<paragraph id="8B94D055FF98817AFF34F95D1538FBC1" blockId="3.[232,1402,1663,1859]" pageId="3" pageNumber="4">
Samples: GU44K-6;
<emphasis id="B95F0C47FF98817AFE2EF95D111AFBE3" bold="true" box="[498,1402,1731,1756]" pageId="3" pageNumber="4">GU44I-1, GU44Z-15, GU44W-10, GU44U-1B, GU44AK-6, GU66F-4,</emphasis>
GU66F-8
</paragraph>
<paragraph id="8B94D055FF98817AFF34F89715DDFA7C" blockId="3.[232,1402,1663,1859]" pageId="3" pageNumber="4">
Dimensions: Length 6.4–11 µm, width 2.8–4.2 µm, striae
<quantity id="4CD37DB0FF98817AFC70F8971077FA1D" box="[940,1047,1801,1826]" metricMagnitude="-1" metricUnit="m" metricValue="6.604" metricValueMax="6.858" metricValueMin="6.35" pageId="3" pageNumber="4" unit="in" value="26.0" valueMax="27.0" valueMin="25.0">25–27 in</quantity>
10 µm in the middle, denser around the apices.
</paragraph>
<paragraph id="8B94D055FF9F817DFF34FF6E1085FC14" blockId="4.[232,1404,240,1311]" pageId="4" pageNumber="5">
Diagnosis: Differing from other
<taxonomicName id="4C2BABD6FF9F817DFDA7FF6E17D4FC36" box="[635,948,240,265]" pageId="4" pageNumber="5">
<emphasis id="B95F0C47FF9F817DFDA7FF6E1732FC36" box="[635,850,240,265]" italics="true" pageId="4" pageNumber="5">Colliculoamphora</emphasis>
species
</taxonomicName>
in the smaller size, finer striae, and markedly concave dorsal margin; dorsal striae interrupted by longitudinal hyaline area.
</paragraph>
</subSubSection>
<subSubSection id="C33183DEFF9F817DFF34FEAD1643F820" pageId="4" pageNumber="5" type="materials_examined">
<paragraph id="8B94D055FF9F817DFF34FEAD16F1FC51" blockId="4.[232,1404,240,1311]" pageId="4" pageNumber="5">
<materialsCitation id="3B43DA08FF9F817DFF34FEAD16F1FC51" ID-GBIF-Occurrence="4899899301" collectionCode="CAS" location="Academy of Sciences" municipality="Deposited" pageId="4" pageNumber="5" specimenCount="1" stateProvince="California" typeStatus="holotype">
<typeStatus id="54906EF7FF9F817DFF34FEAD1539FC73" box="[232,345,307,332]" pageId="4" pageNumber="5" type="holotype">Holotype</typeStatus>
: GU44AK-6, slide 958,
<figureCitation id="1310CCD0FF9F817DFD5BFEAD1681FC73" box="[647,737,307,332]" captionStart="Figures 22–40" captionStartId="29.[292,372,821,844]" captionTargetId="figure-14@30.[232,1402,328,1768]" captionTargetPageId="30" captionText="Figures 22–40. Figs 22–26. Cocconeis ornata, two valves at two focal planes each in DIC and external view in SEM (GU44AU-2). Figs 27–32. Cocconeis subtilissima. Figs 27, 28. Frustules in LM (GU44I-2, GU44Z-15) (DIC). Figs 29, 30. RV external and internal with valvocopula (GU44AQ-1). Figs 31, 32. SV external (whole mount, GU44AC-4), showing the alveolae at the fracture (arrow), and internal (GU44AQ-1). Figs 33–40. Colliculoamphora gabgabensis. Fig. 33. Holotype specimen (GU44AK-6) (DIC). Fig. 34. Paratype specimen (GU44I-1) (DIC). Fig. 35. Specimen showing deeper indentation (GU44AK-6). Figs 36–38. External views, showing the eunotid position of the raphe; arrows on Fig. 37 indicate short striae; Fig. 38 shows girdle bands (GU44AK-6, GU44Z-15, GU52Q-10a, respectively) (SEM). Figs 39, 40. Internal views (GU44W- 10, GU44K-6) (SEM). Scale bars: Figs 22–36 = 5 µm, Figs 37, 38 = 2.5 µm, Figs 39, 40 = 2 µm." figureDoi="http://doi.org/10.5281/zenodo.12575959" httpUri="https://zenodo.org/record/12575959/files/figure.png" pageId="4" pageNumber="5">Fig. 33</figureCitation>
.
<collectingMunicipality id="6BF04A2FFF9F817DFD2DFEAD1708FC73" box="[753,872,307,332]" pageId="4" pageNumber="5">Deposited</collectingMunicipality>
at
<collectingRegion id="49EF1EB7FF9F817DFC48FEAD106BFC73" box="[916,1035,307,332]" country="United States of America" name="California" pageId="4" pageNumber="5">California</collectingRegion>
<location id="8EF4868EFF9F817DFBCAFEAD117BFC73" LSID="urn:lsid:plazi:treatment:03826143FF98817DFF34F9E11643F820:8EF4868EFF9F817DFBCAFEAD117BFC73" box="[1046,1307,307,332]" municipality="Deposited" name="Academy of Sciences" pageId="4" pageNumber="5" stateProvince="California">Academy of Sciences</location>
(
<collectionCode id="ED3A4890FF9F817DFAECFEAD110EFC73" box="[1328,1390,307,332]" country="USA" lsid="urn:lsid:biocol.org:col:34700" name="California Academy of Sciences" pageId="4" pageNumber="5" type="Museum">CAS</collectionCode>
), accession # 627425, slide # 223041.
</materialsCitation>
</paragraph>
<paragraph id="8B94D055FF9F817DFF34FEE917A6FCEC" blockId="4.[232,1404,240,1311]" pageId="4" pageNumber="5">
<typeStatus id="54906EF7FF9F817DFF34FEE9153EFCAF" box="[232,350,375,400]" pageId="4" pageNumber="5" type="paratype">Paratypes</typeStatus>
: A specimen (
<figureCitation id="1310CCD0FF9F817DFDD5FEE9163FFCAF" box="[521,607,375,400]" captionStart="Figures 22–40" captionStartId="29.[292,372,821,844]" captionTargetId="figure-14@30.[232,1402,328,1768]" captionTargetPageId="30" captionText="Figures 22–40. Figs 22–26. Cocconeis ornata, two valves at two focal planes each in DIC and external view in SEM (GU44AU-2). Figs 27–32. Cocconeis subtilissima. Figs 27, 28. Frustules in LM (GU44I-2, GU44Z-15) (DIC). Figs 29, 30. RV external and internal with valvocopula (GU44AQ-1). Figs 31, 32. SV external (whole mount, GU44AC-4), showing the alveolae at the fracture (arrow), and internal (GU44AQ-1). Figs 33–40. Colliculoamphora gabgabensis. Fig. 33. Holotype specimen (GU44AK-6) (DIC). Fig. 34. Paratype specimen (GU44I-1) (DIC). Fig. 35. Specimen showing deeper indentation (GU44AK-6). Figs 36–38. External views, showing the eunotid position of the raphe; arrows on Fig. 37 indicate short striae; Fig. 38 shows girdle bands (GU44AK-6, GU44Z-15, GU52Q-10a, respectively) (SEM). Figs 39, 40. Internal views (GU44W- 10, GU44K-6) (SEM). Scale bars: Figs 22–36 = 5 µm, Figs 37, 38 = 2.5 µm, Figs 39, 40 = 2 µm." figureDoi="http://doi.org/10.5281/zenodo.12575959" httpUri="https://zenodo.org/record/12575959/files/figure.png" pageId="4" pageNumber="5">Fig. 35</figureCitation>
) is marked on GU44I-1, slide 494, CAS accession # 627427, slide # 220343, in addition to the
<typeStatus id="54906EF7FF9F817DFD95FE0716CFFC8D" box="[585,687,409,434]" pageId="4" pageNumber="5" type="holotype">holotype</typeStatus>
of
<emphasis id="B95F0C47FF9F817DFD02FE0717B6FC8D" box="[734,982,409,434]" italics="true" pageId="4" pageNumber="5">
<taxonomicName id="4C2BABD6FF9F817DFD02FE0717B2FC8D" authorityName="Lobban" authorityYear="2015" box="[734,978,409,434]" class="Bacillariophyceae" family="Lauderiaceae" genus="Lauderia" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Thalassiosirales" pageId="4" pageNumber="5" phylum="Ochrophyta" rank="species" species="excentrica">Lauderia excentrica</taxonomicName>
,
</emphasis>
and the specimen in
<figureCitation id="1310CCD0FF9F817DFB3CFE071157FC8D" box="[1248,1335,409,434]" captionStart="Figures 22–40" captionStartId="29.[292,372,821,844]" captionTargetId="figure-14@30.[232,1402,328,1768]" captionTargetPageId="30" captionText="Figures 22–40. Figs 22–26. Cocconeis ornata, two valves at two focal planes each in DIC and external view in SEM (GU44AU-2). Figs 27–32. Cocconeis subtilissima. Figs 27, 28. Frustules in LM (GU44I-2, GU44Z-15) (DIC). Figs 29, 30. RV external and internal with valvocopula (GU44AQ-1). Figs 31, 32. SV external (whole mount, GU44AC-4), showing the alveolae at the fracture (arrow), and internal (GU44AQ-1). Figs 33–40. Colliculoamphora gabgabensis. Fig. 33. Holotype specimen (GU44AK-6) (DIC). Fig. 34. Paratype specimen (GU44I-1) (DIC). Fig. 35. Specimen showing deeper indentation (GU44AK-6). Figs 36–38. External views, showing the eunotid position of the raphe; arrows on Fig. 37 indicate short striae; Fig. 38 shows girdle bands (GU44AK-6, GU44Z-15, GU52Q-10a, respectively) (SEM). Figs 39, 40. Internal views (GU44W- 10, GU44K-6) (SEM). Scale bars: Figs 22–36 = 5 µm, Figs 37, 38 = 2.5 µm, Figs 39, 40 = 2 µm." figureDoi="http://doi.org/10.5281/zenodo.12575959" httpUri="https://zenodo.org/record/12575959/files/figure.png" pageId="4" pageNumber="5">Fig. 29</figureCitation>
from GU44Z-15 is on a stub deposited at CAS, accession # 627385.
</paragraph>
<paragraph id="8B94D055FF9F817DFF34FE42154AFF07" blockId="4.[232,1404,240,1311]" pageId="4" pageNumber="5">
<materialsCitation id="3B43DA08FF9F817DFF34FE421546FF07" ID-GBIF-Occurrence="4899899302" collectingDate="2011-11-05" collectorName="C. Lobban &amp; M. Schefter" country="Guam" latitude="13.442675" location="GabGab" longLatPrecision="1" longitude="144.64285" municipality="Apra Harbor" pageId="4" pageNumber="5" specimenCount="1">
Type locality:
<location id="8EF4868EFF9F817DFE46FE42159BFCCA" LSID="urn:lsid:plazi:treatment:03826143FF98817DFF34F9E11643F820:8EF4868EFF9F817DFE46FE42159BFCCA" box="[410,507,476,501]" country="Guam" latitude="13.442675" longLatPrecision="1" longitude="144.64285" municipality="Apra Harbor" name="GabGab" pageId="4" pageNumber="5">GabGab</location>
reef,
<collectingMunicipality id="6BF04A2FFF9F817DFD9AFE4216BEFCCA" box="[582,734,476,501]" pageId="4" pageNumber="5">Apra Harbor</collectingMunicipality>
<collectingCountry id="F33C90C5FF9F817DFD35FE421753FCCA" box="[745,819,476,501]" name="Guam" pageId="4" pageNumber="5">Guam</collectingCountry>
,
<geoCoordinate id="EE1FB692FF9F817DFC9FFE421069FCCA" box="[835,1033,476,501]" degrees="13" direction="north" minutes="26" orientation="latitude" pageId="4" pageNumber="5" precision="1" seconds="33.63" value="13.442675">13°26′ 33.63′′ N</geoCoordinate>
<geoCoordinate id="EE1FB692FF9F817DFBC8FE421093FCCA" box="[1044,1267,476,501]" degrees="144" direction="east" minutes="38" orientation="longitude" pageId="4" pageNumber="5" precision="1" seconds="34.25" value="144.64285">144° 38′ 34.25′′ E</geoCoordinate>
, associated with filamentous algal turf in a farmer-fish territory, collected by
<collectorName id="26DEB583FF9F817DFC32FE60100AFF28" box="[1006,1130,510,535]" pageId="4" pageNumber="5">C. Lobban</collectorName>
&amp;
<collectorName id="26DEB583FF9F817DFB4DFE60117FFF28" box="[1169,1311,510,535]" pageId="4" pageNumber="5">M. Schefter</collectorName>
,
<date id="FF95F695FF9F817DFAF7FE601546FF07" pageId="4" pageNumber="5" value="2011-11-05">
<collectingDate id="EFD10F7DFF9F817DFAF7FE601546FF07" pageId="4" pageNumber="5" value="2011-11-05">5 Nov. 2011</collectingDate>
</date>
</materialsCitation>
.
</paragraph>
<paragraph id="8B94D055FF9F817DFF34FDDF166DFF43" blockId="4.[232,1404,240,1311]" pageId="4" pageNumber="5">
Etymology: named for the
<typeStatus id="54906EF7FF9F817DFDE5FDDF160BFF65" box="[569,619,577,602]" pageId="4" pageNumber="5">type</typeStatus>
location, which in turn is a Chamorro name for the coral tree (
<taxonomicName id="4C2BABD6FF9F817DFF2EFDFD15BBFF43" box="[242,475,611,636]" class="Aves" family="Fringillidae" genus="Erythrina" kingdom="Animalia" order="Passeriformes" pageId="4" pageNumber="5" phylum="Chordata" rank="species" species="variegata">
<emphasis id="B95F0C47FF9F817DFF2EFDFD15BBFF43" box="[242,475,611,636]" italics="true" pageId="4" pageNumber="5">Erythrina variegata</emphasis>
</taxonomicName>
L.).
</paragraph>
<paragraph id="8B94D055FF9F817DFF34FD1A1096FEB5" blockId="4.[232,1404,240,1311]" pageId="4" pageNumber="5">
Description: Valves linear, asymmetrical about the apical plane, dorsal margin curved, more or less strongly concave, ventral margin slightly bent. Raphe visible on the valve face at each pole but lying mostly on the mantle (
<figureCitation id="1310CCD0FF9F817DFD96FD5616BDFFDE" box="[586,733,712,737]" captionStart="Figures 22–40" captionStartId="29.[292,372,821,844]" captionTargetId="figure-14@30.[232,1402,328,1768]" captionTargetPageId="30" captionText="Figures 22–40. Figs 22–26. Cocconeis ornata, two valves at two focal planes each in DIC and external view in SEM (GU44AU-2). Figs 27–32. Cocconeis subtilissima. Figs 27, 28. Frustules in LM (GU44I-2, GU44Z-15) (DIC). Figs 29, 30. RV external and internal with valvocopula (GU44AQ-1). Figs 31, 32. SV external (whole mount, GU44AC-4), showing the alveolae at the fracture (arrow), and internal (GU44AQ-1). Figs 33–40. Colliculoamphora gabgabensis. Fig. 33. Holotype specimen (GU44AK-6) (DIC). Fig. 34. Paratype specimen (GU44I-1) (DIC). Fig. 35. Specimen showing deeper indentation (GU44AK-6). Figs 36–38. External views, showing the eunotid position of the raphe; arrows on Fig. 37 indicate short striae; Fig. 38 shows girdle bands (GU44AK-6, GU44Z-15, GU52Q-10a, respectively) (SEM). Figs 39, 40. Internal views (GU44W- 10, GU44K-6) (SEM). Scale bars: Figs 22–36 = 5 µm, Figs 37, 38 = 2.5 µm, Figs 39, 40 = 2 µm." figureDoi="http://doi.org/10.5281/zenodo.12575959" httpUri="https://zenodo.org/record/12575959/files/figure.png" pageId="4" pageNumber="5">Figs 36, 37</figureCitation>
). Striae on the dorsal side interrupted by an irregular, apparently depressed hyaline area (
<figureCitation id="1310CCD0FF9F817DFD59FD74176EFE3C" box="[645,782,746,771]" captionStart="Figures 22–40" captionStartId="29.[292,372,821,844]" captionTargetId="figure-14@30.[232,1402,328,1768]" captionTargetPageId="30" captionText="Figures 22–40. Figs 22–26. Cocconeis ornata, two valves at two focal planes each in DIC and external view in SEM (GU44AU-2). Figs 27–32. Cocconeis subtilissima. Figs 27, 28. Frustules in LM (GU44I-2, GU44Z-15) (DIC). Figs 29, 30. RV external and internal with valvocopula (GU44AQ-1). Figs 31, 32. SV external (whole mount, GU44AC-4), showing the alveolae at the fracture (arrow), and internal (GU44AQ-1). Figs 33–40. Colliculoamphora gabgabensis. Fig. 33. Holotype specimen (GU44AK-6) (DIC). Fig. 34. Paratype specimen (GU44I-1) (DIC). Fig. 35. Specimen showing deeper indentation (GU44AK-6). Figs 36–38. External views, showing the eunotid position of the raphe; arrows on Fig. 37 indicate short striae; Fig. 38 shows girdle bands (GU44AK-6, GU44Z-15, GU52Q-10a, respectively) (SEM). Figs 39, 40. Internal views (GU44W- 10, GU44K-6) (SEM). Scale bars: Figs 22–36 = 5 µm, Figs 37, 38 = 2.5 µm, Figs 39, 40 = 2 µm." figureDoi="http://doi.org/10.5281/zenodo.12575959" httpUri="https://zenodo.org/record/12575959/files/figure.png" pageId="4" pageNumber="5">Figs 36, 37</figureCitation>
); striae parallel on the proximal side of this area, but on the distal side parallel only in the middle, becoming radiate around the poles, where they also become denser from the interpolation of additional short striae along the margin (
<figureCitation id="1310CCD0FF9F817DFB00FCB3110EFE79" box="[1244,1390,813,838]" captionStart="Figures 22–40" captionStartId="29.[292,372,821,844]" captionTargetId="figure-14@30.[232,1402,328,1768]" captionTargetPageId="30" captionText="Figures 22–40. Figs 22–26. Cocconeis ornata, two valves at two focal planes each in DIC and external view in SEM (GU44AU-2). Figs 27–32. Cocconeis subtilissima. Figs 27, 28. Frustules in LM (GU44I-2, GU44Z-15) (DIC). Figs 29, 30. RV external and internal with valvocopula (GU44AQ-1). Figs 31, 32. SV external (whole mount, GU44AC-4), showing the alveolae at the fracture (arrow), and internal (GU44AQ-1). Figs 33–40. Colliculoamphora gabgabensis. Fig. 33. Holotype specimen (GU44AK-6) (DIC). Fig. 34. Paratype specimen (GU44I-1) (DIC). Fig. 35. Specimen showing deeper indentation (GU44AK-6). Figs 36–38. External views, showing the eunotid position of the raphe; arrows on Fig. 37 indicate short striae; Fig. 38 shows girdle bands (GU44AK-6, GU44Z-15, GU52Q-10a, respectively) (SEM). Figs 39, 40. Internal views (GU44W- 10, GU44K-6) (SEM). Scale bars: Figs 22–36 = 5 µm, Figs 37, 38 = 2.5 µm, Figs 39, 40 = 2 µm." figureDoi="http://doi.org/10.5281/zenodo.12575959" httpUri="https://zenodo.org/record/12575959/files/figure.png" pageId="4" pageNumber="5">Figs 37, 38</figureCitation>
). Single row of more closely-spaced pores on the ventral side of the raphe (
<figureCitation id="1310CCD0FF9F817DFB7CFCD1109EFE57" box="[1184,1278,847,872]" captionStart="Figures 22–40" captionStartId="29.[292,372,821,844]" captionTargetId="figure-14@30.[232,1402,328,1768]" captionTargetPageId="30" captionText="Figures 22–40. Figs 22–26. Cocconeis ornata, two valves at two focal planes each in DIC and external view in SEM (GU44AU-2). Figs 27–32. Cocconeis subtilissima. Figs 27, 28. Frustules in LM (GU44I-2, GU44Z-15) (DIC). Figs 29, 30. RV external and internal with valvocopula (GU44AQ-1). Figs 31, 32. SV external (whole mount, GU44AC-4), showing the alveolae at the fracture (arrow), and internal (GU44AQ-1). Figs 33–40. Colliculoamphora gabgabensis. Fig. 33. Holotype specimen (GU44AK-6) (DIC). Fig. 34. Paratype specimen (GU44I-1) (DIC). Fig. 35. Specimen showing deeper indentation (GU44AK-6). Figs 36–38. External views, showing the eunotid position of the raphe; arrows on Fig. 37 indicate short striae; Fig. 38 shows girdle bands (GU44AK-6, GU44Z-15, GU52Q-10a, respectively) (SEM). Figs 39, 40. Internal views (GU44W- 10, GU44K-6) (SEM). Scale bars: Figs 22–36 = 5 µm, Figs 37, 38 = 2.5 µm, Figs 39, 40 = 2 µm." figureDoi="http://doi.org/10.5281/zenodo.12575959" httpUri="https://zenodo.org/record/12575959/files/figure.png" pageId="4" pageNumber="5">Fig. 38</figureCitation>
). Copulae areolate (
<figureCitation id="1310CCD0FF9F817DFE89FCEF15CDFEB5" box="[341,429,881,906]" captionStart="Figures 22–40" captionStartId="29.[292,372,821,844]" captionTargetId="figure-14@30.[232,1402,328,1768]" captionTargetPageId="30" captionText="Figures 22–40. Figs 22–26. Cocconeis ornata, two valves at two focal planes each in DIC and external view in SEM (GU44AU-2). Figs 27–32. Cocconeis subtilissima. Figs 27, 28. Frustules in LM (GU44I-2, GU44Z-15) (DIC). Figs 29, 30. RV external and internal with valvocopula (GU44AQ-1). Figs 31, 32. SV external (whole mount, GU44AC-4), showing the alveolae at the fracture (arrow), and internal (GU44AQ-1). Figs 33–40. Colliculoamphora gabgabensis. Fig. 33. Holotype specimen (GU44AK-6) (DIC). Fig. 34. Paratype specimen (GU44I-1) (DIC). Fig. 35. Specimen showing deeper indentation (GU44AK-6). Figs 36–38. External views, showing the eunotid position of the raphe; arrows on Fig. 37 indicate short striae; Fig. 38 shows girdle bands (GU44AK-6, GU44Z-15, GU52Q-10a, respectively) (SEM). Figs 39, 40. Internal views (GU44W- 10, GU44K-6) (SEM). Scale bars: Figs 22–36 = 5 µm, Figs 37, 38 = 2.5 µm, Figs 39, 40 = 2 µm." figureDoi="http://doi.org/10.5281/zenodo.12575959" httpUri="https://zenodo.org/record/12575959/files/figure.png" pageId="4" pageNumber="5">Fig. 40</figureCitation>
). Valve surface smooth, not colliculated (i.e., lacking small elevations).
</paragraph>
<paragraph id="8B94D055FF9F817DFF34FC0C1643F820" blockId="4.[232,1404,240,1311]" pageId="4" pageNumber="5">
Comments: Present in low numbers in several samples and probably overlooked in others.
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<emphasis id="B95F0C47FF9F817DFF34FC2A15DFFEF2" box="[232,447,948,973]" italics="true" pageId="4" pageNumber="5">Colliculoamphora</emphasis>
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was established by
<bibRefCitation id="EFBAADA4FF9F817DFD6EFC2A17B5FEF2" author="Williams, D. M. &amp; G. Reid" box="[690,981,948,973]" pageId="4" pageNumber="5" pagination="147 - 154" refId="ref18214" refString="Williams, D. M. &amp; G. Reid. 2006. Fossils and the tropics, the Eunotiaceae (Bacillariophyta) expanded: a new genus for the Upper Eocene fossil diatom Eunotia reedii and the recent tropical marine diatom Amphora reichardtiana. European Journal of Phycology 41: 147 - 154." type="journal article" year="2006">Williams &amp; Reid (2006)</bibRefCitation>
for two species formerly placed in
<taxonomicName id="4C2BABD6FF9F817DFF34FC481535FED0" box="[232,341,982,1007]" class="Bacillariophyceae" family="Naviculaceae" genus="Amphora" higherTaxonomySource="GBIF" kingdom="Chromista" order="Naviculales" pageId="4" pageNumber="5" phylum="Ochrophyta" rank="genus">
<emphasis id="B95F0C47FF9F817DFF34FC481535FED0" box="[232,341,982,1007]" italics="true" pageId="4" pageNumber="5">Amphora</emphasis>
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. They noted the similarity to
<taxonomicName id="4C2BABD6FF9F817DFD1EFC48177FFED0" authorityName="C.G.Ehrenberg" authorityYear="1837" box="[706,799,982,1007]" class="Bacillariophyceae" family="Eunotiaceae" genus="Eunotia" higherTaxonomySource="GBIF,CoL" kingdom="Chromista" order="Eunotiales" pageId="4" pageNumber="5" phylum="Ochrophyta" rank="genus">
<emphasis id="B95F0C47FF9F817DFD1EFC48177FFED0" box="[706,799,982,1007]" italics="true" pageId="4" pageNumber="5">Eunotia</emphasis>
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, from the way the raphe hooks off the valve face onto the mantle, and placed it in
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.
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gave a comprehensive list of the ten known species of
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<emphasis id="B95F0C47FF9F817DFD98FB84177BF90C" box="[580,795,1050,1075]" italics="true" pageId="4" pageNumber="5">Colliculoamphora</emphasis>
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, noted the paucity of material for all species, and rationalized the description of new species on such data as they had, an argument I applaud. Most species have straight or convex dorsal margins but three have concave dorsal margins. Of the latter,
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<emphasis id="B95F0C47FF9F817DFF34FBE115CCF9A7" box="[232,428,1151,1176]" italics="true" pageId="4" pageNumber="5">C. palawanensis</emphasis>
G. Reid &amp; D.M. Williams
</taxonomicName>
(
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, figs 15, 17–21) most closely resembles our species, in having a central hyaline area the length of the valve and the closest shape, but it is larger (14–17 x 4–5 µm) and the striae coarser (
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10 µm). Indeed, our species is smaller and the striae denser than any in
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list. No external
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was given for
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<emphasis id="B95F0C47FF9F817DFE86FA98167CF820" box="[346,540,1286,1311]" italics="true" pageId="4" pageNumber="5">C. palawanensis</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>
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