126 lines
16 KiB
XML
126 lines
16 KiB
XML
<document id="FD5C23C0E93523B5F0BBD90A3508E527" ID-CLB-Dataset="24567" ID-DOI="10.11646/zootaxa.4711.3.3" ID-GBIF-Dataset="21de8a76-6a04-45d4-8e81-5fb524718c58" ID-ISSN="1175-5326" ID-Zenodo-Dep="3586554" ID-ZooBank="85D81C2D-0B66-4C0D-B708-AAF1DAD6018B" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1576823765851" checkinUser="plazi" docAuthor="Hechinger, Ryan F." docDate="2019" docId="EF6AD37789408B23FF39FEA0FC05FB52" docLanguage="en" docName="zootaxa.4711.3.3.pdf" docOrigin="Zootaxa 4711 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Mesostephanus appendiculatus Ciurea" docType="treatment" docVersion="8" lastPageNumber="467" masterDocId="1353AB0F89488B2BFFAEFF89FFC5FF9A" masterDocTitle="Guide to the trematodes (Platyhelminthes) that infect the California horn snail (Cerithideopsis californica: Potamididae: Gastropoda) as first intermediate host" masterLastPageNumber="494" masterPageNumber="459" pageNumber="467" updateTime="1698775255321" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="E8461B8B98FB72DBC6426B393D0175D2">Guide to the trematodes (Platyhelminthes) that infect the California horn snail (Cerithideopsis californica: Potamididae: Gastropoda) as first intermediate host</mods:title>
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<mods:namePart id="8B156CED39323FAE8425939D167586BF">Hechinger, Ryan F.</mods:namePart>
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<mods:title id="FDA88C5F9319E9456C378541C281167C">Zootaxa</mods:title>
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<mods:date id="A774A8E709510AEDDACF96C6C3A117F1">2019</mods:date>
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<mods:number id="1B8A6BB5C3D1CA26B9F208A69798014E">2019-12-17</mods:number>
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<mods:number id="9AB0AF624C4FD3E39D367238067C9938">4711</mods:number>
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<mods:identifier id="B7CB445793B23DC39D60FB88FF6BBF45" type="DOI">10.11646/zootaxa.4711.3.3</mods:identifier>
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<treatment id="EF6AD37789408B23FF39FEA0FC05FB52" ID-DOI="http://doi.org/10.5281/zenodo.5665006" ID-GBIF-Taxon="160797611" ID-Zenodo-Dep="5665006" LSID="urn:lsid:plazi:treatment:EF6AD37789408B23FF39FEA0FC05FB52" httpUri="http://treatment.plazi.org/id/EF6AD37789408B23FF39FEA0FC05FB52" lastPageNumber="467" pageId="8" pageNumber="467">
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<subSubSection id="2FD931EA89408B23FF39FEA0FE5CFEFD" pageId="8" pageNumber="467" type="nomenclature">
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<paragraph id="677C626189408B23FF39FEA0FD46FED9" blockId="8.[151,643,297,360]" box="[151,643,297,324]" pageId="8" pageNumber="467">
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<heading id="3C34D50D89408B23FF39FEA0FD46FED9" bold="true" box="[151,643,297,324]" fontSize="11" level="1" pageId="8" pageNumber="467" reason="1">
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<taxonomicName id="A0C319E289408B23FF39FEA0FD46FED9" ID-CoL="c09ca1a3-fc53-4466-b48c-ebc6eb3d0845" authority="(Ciurea)" authorityName="Ciurea" baseAuthorityName="Ciurea" baseAuthorityYear="1916" box="[151,643,297,324]" class="Trematoda" family="Cyathocotylidae" genus="Mesostephanus" kingdom="Animalia" order="Diplostomida" pageId="8" pageNumber="467" phylum="Platyhelminthes" rank="species" species="appendiculatus">
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<emphasis id="55B7BE7389408B23FF39FEA0FD46FED9" bold="true" box="[151,643,297,324]" pageId="8" pageNumber="467">
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<emphasis id="55B7BE7389408B23FF39FEA0FDD7FEDE" bold="true" box="[151,530,297,324]" italics="true" pageId="8" pageNumber="467">Mesostephanus appendiculatus</emphasis>
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(Ciurea)
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="677C626189408B23FF39FEC4FE5CFEFD" blockId="8.[151,643,297,360]" box="[151,409,333,360]" pageId="8" pageNumber="467">
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(1. Meap;
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<figureCitation id="FFF87EE489408B23FEA5FEC4FE92FEFD" box="[267,343,333,359]" captionStart="FIGURE 1" captionStartId="3.[151,250,1428,1453]" captionTargetBox="[151,1436,522,1400]" captionTargetId="figure@3.[151,1436,522,1400]" captionTargetPageId="3" captionText="FIGURE 1. General characteristics of the parthenitae and cercariae of the trematodes infecting Cerithideopsis californica as first intermediate host. Species numbers and codes follow Table 1 and species accounts. Cercariae are all to scale, with additional magnified views of six small species (indicated by dashed lines). Note the oral stylets (presented in right lateral view) for Pruc and Smmi. Parthenitae are not to scale. Scale bars consistently indicate 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3586556" httpUri="https://zenodo.org/record/3586556/files/figure.png" pageId="8" pageNumber="467">Figs. 1</figureCitation>
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,
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<figureCitation id="FFF87EE489408B23FECBFEC4FE55FEFD" box="[357,400,333,359]" captionStart="FIGURES 4–7" captionStartId="7.[151,264,1842,1867]" captionTargetBox="[151,1424,522,1799]" captionTargetId="figure@7.[151,1436,522,1815]" captionTargetPageId="7" captionText="FIGURES 4–7. Mesostephanus appendiculatus (Meap). 4, Overview of a colony in a freshly deshelled, infected horn snail in sea water, showing the way the active sporocysts “spill out” of their infection site in the mantle upon host dissection. Note the host snail’s non-functional, orange ovaries. Scale bar = 1 cm. 5, Sporocyst, live, with developing cercariae, under slight coverslip pressure. Scale bar = 100 µm. 6, Cercaria, live. Scale bar = 100 µm. 7, Cercaria body, live, under coverslip pressure to better reveal key traits. Scale bar = 100 µm." figureDoi="http://doi.org/10.5281/zenodo.3586560" httpUri="https://zenodo.org/record/3586560/files/figure.png" pageId="8" pageNumber="467">4–7</figureCitation>
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)
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</paragraph>
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</subSubSection>
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<subSubSection id="2FD931EA89408B23FF39FE1CFE26FC3D" pageId="8" pageNumber="467" type="diagnosis">
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<paragraph id="677C626189408B23FF39FE1CFAB2FD81" blockId="8.[151,1437,405,1224]" pageId="8" pageNumber="467">
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<emphasis id="55B7BE7389408B23FF39FE1CFED1FE2A" bold="true" box="[151,276,405,432]" pageId="8" pageNumber="467">Diagnosis:</emphasis>
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<emphasis id="55B7BE7389408B23FEB2FE1CFE65FE35" box="[284,416,405,431]" italics="true" pageId="8" pageNumber="467">Parthenitae</emphasis>
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. Colony comprised of very active sporocysts, densely concentrated in snail mantle (in enlarged perirectal sinus). Sporocysts translucent white; usually over
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<quantity id="A03BCF8489408B23FC3FFE30FC32FE4E" box="[913,1015,441,468]" metricMagnitude="0" metricUnit="m" metricValue="1.2" pageId="8" pageNumber="467" unit="mm" value="1200.0">1200 µm</quantity>
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long, very elongate (length:width up to ~15:1), of relatively consistent width but with tapering anterior and bluntly rounded posterior; body wall with muscular, transverse, crest-shaped annulations, developing cercariae visible through translucent sporocyst wall.
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</paragraph>
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<paragraph id="677C626189408B23FF69FDAFFDA0FD55" blockId="8.[151,1437,405,1224]" pageId="8" pageNumber="467">
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<taxonomicName id="A0C319E289408B23FF69FDAFFEEEFDDA" authorityName="O.F.Muller" authorityYear="1773" box="[199,299,550,576]" class="Trematoda" family="Colepidae" genus="Cercaria" kingdom="Animalia" order="Prostomatida" pageId="8" pageNumber="467" phylum="Platyhelminthes" rank="genus">
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<emphasis id="55B7BE7389408B23FF69FDAFFEEEFDDA" box="[199,299,550,576]" italics="true" pageId="8" pageNumber="467">Cercaria</emphasis>
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</taxonomicName>
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. Body translucent colorless; non-oculate; with oral sucker modified as “anterior organ” and no ventral sucker; with typical cyathocotylid excretory system, wherein main collecting ducts have lateral and medial branches all connecting anteriorly, the anterior blind ducts diverge (point antero-laterally); gut branches at 1/4–1/3 body length, caeca each with 3–4 pronounced, sinuous undulations; body ~
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<quantity id="A03BCF8489408B23FC31FD18FC32FD36" box="[927,1015,657,684]" metricMagnitude="-1" metricUnit="m" metricValue="2.2" pageId="8" pageNumber="467" unit="mm" value="220.0">220 µm</quantity>
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long, ~1/2 the length of tail stem; tail forked, with dorso-ventral fins on furcae.
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</paragraph>
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<paragraph id="677C626189408B23FF69FD50FB1DFC8D" blockId="8.[151,1437,405,1224]" pageId="8" pageNumber="467">
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<emphasis id="55B7BE7389408B23FF69FD50FE69FD6E" bold="true" box="[199,428,729,756]" pageId="8" pageNumber="467">
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<taxonomicName id="A0C319E289408B23FF69FD50FEF5FD6E" authorityName="O.F.Muller" authorityYear="1773" box="[199,304,729,756]" class="Trematoda" family="Colepidae" genus="Cercaria" kingdom="Animalia" order="Prostomatida" pageId="8" pageNumber="467" phylum="Platyhelminthes" rank="genus">Cercaria</taxonomicName>
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behavior:
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</emphasis>
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Fresh, emerged cercariae remain in water column, swim intermittently with short bursts followed by longer periods of resting and slow sinking; frequently swim in response to vibration.
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</paragraph>
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<paragraph id="677C626189408B23FF69FCA8FE26FC3D" blockId="8.[151,1437,405,1224]" pageId="8" pageNumber="467">
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<emphasis id="55B7BE7389408B23FF69FCA8FE41FCA6" bold="true" box="[199,388,801,828]" pageId="8" pageNumber="467">Similar species:</emphasis>
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Meap cercariae are readily distinguished from Smcy [2] by their larger size, more anterior position of gut branching, pronounced caeca undulations, and (usually) diverging anterior blind excretory ducts. If the host snail has been dissected, the sporocyst distribution, activity, and annulations provide the easiest way to distinguish Meap from Smcy.
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</paragraph>
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</subSubSection>
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<subSubSection id="2FD931EA89408B23FF69FC3BFC05FB52" pageId="8" pageNumber="467" type="discussion">
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<paragraph id="677C626189408B23FF69FC3BFB1DFBE5" blockId="8.[151,1437,405,1224]" pageId="8" pageNumber="467">
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<emphasis id="55B7BE7389408B23FF69FC3BFEF8FC56" bold="true" box="[199,317,946,972]" pageId="8" pageNumber="467">Remarks:</emphasis>
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Martin (1961) documented the life cycle. He described the sporocysts and cercariae from naturally infected
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<taxonomicName id="A0C319E289408B23FF56FC5FFE56FC75" box="[248,403,981,1008]" class="Gastropoda" family="Potamididae" genus="Cerithideopsis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Sorbeoconcha" pageId="8" pageNumber="467" phylum="Mollusca" rank="species" species="californica">
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<emphasis id="55B7BE7389408B23FF56FC5FFE56FC75" box="[248,403,981,1008]" italics="true" pageId="8" pageNumber="467">C. californica</emphasis>
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</taxonomicName>
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(although he reported the sporocysts as residing in the visceral mass, which is not consistent with our repeated observations (n> 1000) that they use the perirectal sinus in the mantle). Martin also experimentally infected second intermediate host fishes with metacercariae, using those to infect chicks to get adults. He described the adult and identified it as
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<taxonomicName id="A0C319E289408B23FDE1FBC8FC6BFBC1" baseAuthorityName="Ciurea" baseAuthorityYear="1916" box="[591,942,1089,1115]" class="Trematoda" family="Cyathocotylidae" genus="Mesostephanus" kingdom="Animalia" order="Diplostomida" pageId="8" pageNumber="467" phylum="Platyhelminthes" rank="species" species="appendiculatus">
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<emphasis id="55B7BE7389408B23FDE1FBC8FC6BFBC1" box="[591,942,1089,1115]" italics="true" pageId="8" pageNumber="467">Mesostephanus appendiculatus</emphasis>
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</taxonomicName>
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. Because
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<taxonomicName id="A0C319E289408B23FB8DFBCBFB31FBC1" baseAuthorityName="Ciurea" baseAuthorityYear="1916" box="[1059,1268,1089,1115]" class="Trematoda" family="Cyathocotylidae" genus="Mesostephanus" kingdom="Animalia" order="Diplostomida" pageId="8" pageNumber="467" phylum="Platyhelminthes" rank="species" species="appendiculatus">
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<emphasis id="55B7BE7389408B23FB8DFBCBFB31FBC1" box="[1059,1268,1089,1115]" italics="true" pageId="8" pageNumber="467">M. appendiculatus</emphasis>
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</taxonomicName>
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was originally identified from
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<collectingCountry id="1FD422F189408B23FEE9FBECFE6AFBE5" box="[327,431,1125,1151]" name="Romania" pageId="8" pageNumber="467">Romania</collectingCountry>
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, it seems likely that it represents a globally distributed species complex.
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</paragraph>
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<paragraph id="677C626189408B23FF69FB00FC05FB52" blockId="8.[151,1437,405,1224]" pageId="8" pageNumber="467">
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This species likely corresponds to “
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<taxonomicName id="A0C319E289408B23FDF5FB03FCF0FB39" box="[603,821,1161,1188]" class="Trematoda" family="Colepidae" genus="Cercaria" kingdom="Animalia" order="Prostomatida" pageId="8" pageNumber="467" phylum="Platyhelminthes" rank="species" species="cerithidia">
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<emphasis id="55B7BE7389408B23FDF5FB03FCF0FB39" box="[603,821,1161,1188]" italics="true" pageId="8" pageNumber="467">Cercaria cerithidia</emphasis>
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</taxonomicName>
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22” of
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<bibRefCitation id="03521F9089408B23FC22FB03FBEAFB39" author="Hunter, W. S." box="[908,1071,1161,1188]" pageId="8" pageNumber="467" refId="ref20845" refString="Hunter, W. S. (1942) Studies on cercariae of the common mud-flat snail, Cerithidea californica. University of California, Los Angeles, 128 pp." type="book" year="1942">Hunter (1942)</bibRefCitation>
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, the “Furcocercous
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<taxonomicName id="A0C319E289408B23FABCFB00FAB1FB39" authorityName="O.F.Muller" authorityYear="1773" box="[1298,1396,1161,1187]" class="Trematoda" family="Colepidae" genus="Cercaria" kingdom="Animalia" order="Prostomatida" pageId="8" pageNumber="467" phylum="Platyhelminthes" rank="genus">Cercaria</taxonomicName>
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” of
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<bibRefCitation id="03521F9089408B23FF39FB27FE20FB5D" author="Maxon, M. G. & Pequegnat, W. E." box="[151,485,1197,1224]" pageId="8" pageNumber="467" pagination="30 - 55" refId="ref22284" refString="Maxon, M. G. & Pequegnat, W. E. (1949) Cercariae from upper Newport Bay. Journal of Entomology and Zoology, 41, 30 - 55." type="journal article" year="1949">Maxon and Pequegnat (1949)</bibRefCitation>
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, and the “large strigeid” of
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<bibRefCitation id="03521F9089408B23FCB4FB24FC79FB52" author="Martin, W. E." box="[794,956,1197,1224]" pageId="8" pageNumber="467" pagination="203 - 210" refId="ref21967" refString="Martin, W. E. (1955) Seasonal infections of the snail, Cerithidea californica Haldeman, with larval trematodes. In: Essays in Natural Science in Honor of Captain Alan Hancock on the occasion of his birthday. University of Southern California Press, Los Angeles, California, pp. 203 - 210." type="book chapter" year="1955">Martin (1955)</bibRefCitation>
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.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |