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<document id="40BFA160B8D8C2CF7402A9D60C5E87AA" ID-DOI="10.11646/zootaxa.3387.1.1" ID-ISSN="1175­5334" ID-Zenodo-Dep="5253926" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629799046808" checkinUser="felipe" docAuthor="Dronen, Norman O., Calhoun, Dana M. &amp; Simcik, Steven R." docDate="2012" docId="F21487DCD30C056FFAD78876CE4FF8D9" docLanguage="en" docName="zt03387p096.pdf" docOrigin="Zootaxa 3387 (1)" docSource="https://biotaxa.org/Zootaxa/article/view/zootaxa.3387.1.1" docStyle="DocumentStyle:D239614CE4198176A422035174489AB1.4:Zootaxa.2009-2012.monograph" docStyleId="D239614CE4198176A422035174489AB1" docStyleName="Zootaxa.2009-2012.monograph" docStyleVersion="4" docTitle="Mesocoelium malayanum Palmieri &amp; Sullivan 1977" docType="treatment" docVersion="6" lastPageNumber="60" masterDocId="0E2DFFA4D3370554FA408A52CA70FFB7" masterDocTitle="Mesocoelium Odhner, 1901 (Digenea: Mesocoelidae) revisited; a revision of the family and re-evaluation of species composition in the genus 3387" masterLastPageNumber="96" masterPageNumber="1" pageNumber="60" updateTime="1699113310810" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="FB62DAC99AE98A2AF19E81E34083615E">Mesocoelium Odhner, 1901 (Digenea: Mesocoelidae) revisited; a revision of the family and re-evaluation of species composition in the genus 3387</mods:title>
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<mods:namePart id="1D75FE07E3415903A01260D1A7C15269">Dronen, Norman O.</mods:namePart>
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<mods:namePart id="A20B056DBD9E96BA59CCAD058320318F">Calhoun, Dana M.</mods:namePart>
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<mods:namePart id="222BDA77A4CA626B59C963781C772859">Simcik, Steven R.</mods:namePart>
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<mods:date id="AF3DE83CD1E05F2173CD8561CF59D457">2012</mods:date>
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<subSubSection id="32A76541D30C056FFAD78876CBBEFD89" box="[151,462,548,574]" pageId="59" pageNumber="60" type="nomenclature">
<paragraph id="7A0236CAD30C056FFAD78876CBBEFD89" blockId="59.[151,462,548,606]" box="[151,462,548,574]" pageId="59" pageNumber="60">
<heading id="214A81A6D30C056FFAD78876CBBEFD89" bold="true" box="[151,462,548,574]" fontSize="11" level="1" pageId="59" pageNumber="60" reason="1">
<taxonomicName id="BDBD4D49D30C056FFAD78876CBBEFD89" ID-CoL="84B2T" authorityName="Palmieri &amp; Sullivan" authorityYear="1977" box="[151,462,548,574]" class="Trematoda" family="Mesocoeliidae" genus="Mesocoelium" kingdom="Animalia" order="Plagiorchiida" pageId="59" pageNumber="60" phylum="Platyhelminthes" rank="species" species="malayanum">
<emphasis id="48C9EAD8D30C056FFAD78876CBBEFD89" bold="true" box="[151,462,548,574]" italics="true" pageId="59" pageNumber="60">Mesocoelium malayanum</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="32A76541D30C056FFAD78814CE2EF99D" pageId="59" pageNumber="60" type="description">
<paragraph id="7A0236CAD30C056FFAD78814CBF5FDE9" blockId="59.[151,462,548,606]" box="[151,389,582,606]" pageId="59" pageNumber="60">
(
<figureCitation id="E2862A4FD30C056FFADE8814CB7FFDE9" box="[158,271,582,606]" captionStart="FIGURES 2122" captionStartId="56.[151,264,1883,1906]" captionTargetBox="[174,1418,218,1833]" captionTargetId="figure-42@56.[151,1436,193,1862]" captionTargetPageId="56" captionText="FIGURES 2122. Mesocoelium meggitti (USNPC 090333.00) and Mesocoelium malayanum (BMNH 1986.9.22.72-90). 21. Mesocoelium meggitti; Ventral view of adult. 22. Mesocoelium malayanum; Ventral view of adult." figureDoi="http://doi.org/10.5281/zenodo.5253954" httpUri="https://zenodo.org/record/5253954/files/figure.png" pageId="59" pageNumber="60">Figure 22</figureCitation>
; Table 16)
</paragraph>
<paragraph id="7A0236CAD30C056FFAD788DCCE91FD11" blockId="59.[151,1436,654,1902]" box="[151,1249,654,679]" pageId="59" pageNumber="60">
<emphasis id="48C9EAD8D30C056FFAD788DCCB3DFD10" bold="true" box="[151,333,654,679]" pageId="59" pageNumber="60">Definitive host:</emphasis>
<emphasis id="48C9EAD8D30C056FFB1488DCCBADFD11" box="[340,477,654,678]" italics="true" pageId="59" pageNumber="60">Psamnophis</emphasis>
<taxonomicName id="BDBD4D49D30C056FFBA488DCC8CFFD11" authority="(Linnaeus)" baseAuthorityName="Linnaeus" box="[484,703,654,678]" class="Amphibia" family="Rhacophoridae" genus="Polypedates" kingdom="Animalia" order="Anura" pageId="59" pageNumber="60" phylum="Chordata" rank="species" species="sibilans">
<emphasis id="48C9EAD8D30C056FFBA488DCC84BFD11" box="[484,571,654,678]" italics="true" pageId="59" pageNumber="60">sibilans</emphasis>
(Linnaeus)
</taxonomicName>
, striped sand snake (
<taxonomicName id="BDBD4D49D30C056FF9E688DCCE6AFD11" box="[934,1050,654,678]" class="Reptilia" kingdom="Animalia" order="Squamata" pageId="59" pageNumber="60" phylum="Chordata" rank="order">Squamata</taxonomicName>
:
<taxonomicName id="BDBD4D49D30C056FFE6488DCCEA5FD11" authorityName="Fitzinger" authorityYear="1843" box="[1060,1237,654,678]" class="Reptilia" family="Lamprophiidae" kingdom="Animalia" order="Squamata" pageId="59" pageNumber="60" phylum="Chordata" rank="family">Lamprophiidae</taxonomicName>
).
</paragraph>
<paragraph id="7A0236CAD30C056FFA8788E0CBFAFD7C" blockId="59.[151,1436,654,1902]" box="[199,394,690,715]" pageId="59" pageNumber="60">
<emphasis id="48C9EAD8D30C056FFA8788E0CB42FD7C" bold="true" box="[199,306,690,715]" pageId="59" pageNumber="60">Locality:</emphasis>
<collectingCountry id="02AA765AD30C056FFB7988E1CBF6FD7C" box="[313,390,691,715]" name="Kenya" pageId="59" pageNumber="60">Kenya</collectingCountry>
.
</paragraph>
<paragraph id="7A0236CAD30C056FFA878884CB1CFD59" blockId="59.[151,1436,654,1902]" box="[199,364,726,751]" pageId="59" pageNumber="60">
<emphasis id="48C9EAD8D30C056FFA878884CA8DFD58" bold="true" box="[199,253,726,751]" pageId="59" pageNumber="60">Site:</emphasis>
Intestine.
</paragraph>
<paragraph id="7A0236CAD30C056FFA8788A8C8D1FCA5" blockId="59.[151,1436,654,1902]" box="[199,673,762,787]" pageId="59" pageNumber="60">
<emphasis id="48C9EAD8D30C056FFA8788A8CBB8FCA4" bold="true" box="[199,456,762,787]" pageId="59" pageNumber="60">Specimens examined:</emphasis>
<materialsCitation id="CAD53C97D30C056FFB8F88A9C8D1FCA5" box="[463,673,762,786]" collectingDate="1986-09-22" collectionCode="BMNH" pageId="59" pageNumber="60" specimenCount="1">
<collectionCode id="1CACAE0FD30C056FFB8F88A9C853FCA5" box="[463,547,763,786]" pageId="59" pageNumber="60">BMNH</collectionCode>
<date id="0E03100AD30C056FF86A88A8C8D1FCA5" box="[554,673,762,786]" pageId="59" pageNumber="60" value="1986-09-22">
<collectingDate id="1E47E9E2D30C056FF86A88A8C8D1FCA5" box="[554,673,762,786]" pageId="59" pageNumber="60" value="1986-09-22">1986.9.22.</collectingDate>
</date>
</materialsCitation>
</paragraph>
<paragraph id="7A0236CAD30C056FFA87894CCE3CFBE1" blockId="59.[151,1436,654,1902]" pageId="59" pageNumber="60">
<emphasis id="48C9EAD8D30C056FFA87894CCB8AFC80" bold="true" box="[199,506,798,823]" pageId="59" pageNumber="60">Description of specimens:</emphasis>
Based on
<specimenCount id="6CBBFD43D30C056FF838894CC957FC81" box="[632,807,798,822]" pageId="59" pageNumber="60" type="generic">four specimens</specimenCount>
. With characteristics of genus. Body monas
<typeStatus id="A5068868D30C056FFF5A894DCF3DFC80" box="[1306,1357,799,823]" pageId="59" pageNumber="60">type</typeStatus>
, small, posteriorly attenuated, body tapering markedly posteriorly, nearly club-shaped, forebody wider than hindbody, 1,581 (
<geoCoordinate id="1F89500DD30C056FFAA58934CB55FCC9" box="[229,293,870,894]" degrees="1,400" direction="north" orientation="latitude" pageId="59" pageNumber="60" precision="55" value="1.4">1,400</geoCoordinate>
<geoCoordinate id="1F89500DD30C056FFB658934CB04FCC9" box="[293,372,870,894]" degrees="1,688" direction="west" orientation="longitude" pageId="59" pageNumber="60" precision="55" value="-1.688">1,688</geoCoordinate>
) by 377 (425563); body spines not observed; forebody 535 (450600) long, 3237% of body length. Oral sucker spherical to subspherical, 233 (200250) by 247 (200283), mouth opening anterior from center of sucker, nearly terminal; prepharynx short; pharynx subspherical to spherical, wider than long, 101 (88120) by 115 (93135); esophagus 75 (25170) long; cecal bifurcation near midlevel of forebody; ceca surpassing ovary posteriorly, terminating near midlevel of hindbody, occupying 2945% of postovarian space. Ratio of width of oral sucker and pharynx 1:2.2 (1:2.01:2.4). Ventral sucker located anterior to midlevel of body, smaller than oral sucker, 203 (175220) by 202 (178225). Ratio of sucker widths 1:1.2 (1:1.01:1.5).
</paragraph>
<paragraph id="7A0236CAD30C056FFA878E31CA81FABD" blockId="59.[151,1436,654,1902]" pageId="59" pageNumber="60">Testes smooth, diagonal, situated at level of ventral sucker. Right testis 155 (98200) by 131 (85180); left testis 156 (113200) by 140 (103180). Cirrus sac situated between pharynx and ventral sucker, enclosing short cirrus, reduced pars prostatica, short ejaculatory duct surrounded by prostate cells, and bipartite seminal vesicle, 155 (110170, 811% of body length) by 61 (3395). Genital pore immediately postpharyngeal, prebifurcal, submedian.</paragraph>
<paragraph id="7A0236CAD30C056FFA878F44CE5AF9B1" blockId="59.[151,1436,654,1902]" pageId="59" pageNumber="60">Ovary smooth, posttesticular, situated short distance posterior to right or left testis, 172 (100270) by 86 (7690), removed from posterior end by some distance; postovarian space 789 (700870) long, 4754% of body length. Ratio of width of ovary to mean width of testes 1:1.6 (1:1.31:2.0). Seminal receptacle spherical, located immediately sinistral and slightly posterior to ovary. Laurers canal present, opening on dorsal surface. Vitelline fields distributed along ceca from level of pharynx posteriorly to near midlevel of postovarian space, terminating near to, or surpassing cecal ends; vitelline follicles 28 (1743) by 25 (1733) (n = 20). Uterus largely postacetabular, filling most of hindbody. Eggs operculate, 43 (4045) by 28 (2530) (n = 30).</paragraph>
<paragraph id="7A0236CAD30C056FFA878C41CE2EF99D" blockId="59.[151,1436,654,1902]" box="[199,1118,1554,1579]" pageId="59" pageNumber="60">Excretory vesicle Y-shaped, with poorly developed arms; excretory pore terminal.</paragraph>
</subSubSection>
<subSubSection id="32A76541D30C056FFA878C65CE4FF8D9" pageId="59" pageNumber="60" type="discussion">
<paragraph id="7A0236CAD30C056FFA878C65CE4FF8D9" blockId="59.[151,1436,654,1902]" pageId="59" pageNumber="60">
<emphasis id="48C9EAD8D30C056FFA878C65CB4DF9F8" bold="true" box="[199,317,1591,1615]" pageId="59" pageNumber="60">Remarks:</emphasis>
These specimens (BMNH
<date id="0E03100AD30C056FF82C8C64C8AEF9F9" box="[620,734,1590,1614]" pageId="59" pageNumber="60" value="1986-09-22">1986.9.22</date>
) have moderately long ceca, and a genital pore that is prebifurcal and submedian, placing them in the monas body
<typeStatus id="A5068868D30C056FF8A48C09C968F9C4" box="[740,792,1627,1651]" pageId="59" pageNumber="60">type</typeStatus>
. The posterior extent of the vitelline fields terminate near to, or surpass the cecal ends posteriorly; the gonads overlap the area of the ventral sucker and the body is markedly attenuated posteriorly (nearly club-shaped) so that the forebody is wider than the hindbody, placing them in
<taxonomicName id="BDBD4D49D30C056FFF3D8CF1CB6AF969" authorityName="Palmieri &amp; Sullivan" authorityYear="1977" class="Trematoda" family="Mesocoeliidae" genus="Mesocoelium" kingdom="Animalia" order="Plagiorchiida" pageId="59" pageNumber="60" phylum="Platyhelminthes" rank="species" species="malayanum">
<emphasis id="48C9EAD8D30C056FFF3D8CF1CFE4F90D" box="[1405,1428,1699,1722]" italics="true" pageId="59" pageNumber="60">M</emphasis>
.
<emphasis id="48C9EAD8D30C056FFAD78C94CB6AF969" box="[151,282,1734,1758]" italics="true" pageId="59" pageNumber="60">malayanum</emphasis>
</taxonomicName>
. Although the eggs of these specimens are somewhat wider (2530 compared to 2224), they conform to the original description by
<bibRefCitation id="1E2C4B3BD30C056FFBA38CB8C965F8B5" author="Palmieri, J. R. &amp; Sullivan, J. T." box="[483,789,1770,1794]" pageId="59" pageNumber="60" pagination="205 - 208" refId="ref56545" refString="Palmieri, J. R. &amp; Sullivan, J. T. (1977) Mesocoelium malayanum sp. n. (Digenea: Brachycoeliidae) in a frog, Rana macrodon Dumeril &amp; Bibron 1941, from Malaysia. Journal of Helminthology, 51, 205 - 208." type="journal article" year="1977">Palmieri &amp; Sullivan (1977)</bibRefCitation>
in all remaining diagnostic characteristics (Table 16) and were collected from the Old World as the specimens used in the original description of this species (Africa compared to
<collectingCountry id="02AA765AD30C056FFABF8D60CB1AF8FD" box="[255,362,1842,1866]" name="Malaysia" pageId="59" pageNumber="60">Malaysia</collectingCountry>
). The specimens from BMNH were collected from the striped sand snake,
<taxonomicName id="BDBD4D49D30C056FFE968D61CF3CF8FC" box="[1238,1356,1843,1867]" class="Amphibia" family="Rhacophoridae" genus="Polypedates" kingdom="Animalia" order="Anura" pageId="59" pageNumber="60" phylum="Chordata" rank="species" species="sibilans">
<emphasis id="48C9EAD8D30C056FFE968D61CE94F8FD" box="[1238,1252,1843,1866]" italics="true" pageId="59" pageNumber="60">P</emphasis>
.
<emphasis id="48C9EAD8D30C056FFEB58D61CF3CF8FC" box="[1269,1356,1843,1867]" italics="true" pageId="59" pageNumber="60">sibilans</emphasis>
</taxonomicName>
, while those used in the original description were from the fanged river frog,
<taxonomicName id="BDBD4D49D30C056FF9EA8D05CE48F8D9" box="[938,1080,1878,1902]" class="Trematoda" family="Mesocoeliidae" genus="Lemnonectes" kingdom="Animalia" order="Plagiorchiida" pageId="59" pageNumber="60" phylum="Platyhelminthes" rank="species" species="macrodon">
<emphasis id="48C9EAD8D30C056FF9EA8D05C9C9F8D9" box="[938,953,1879,1902]" italics="true" pageId="59" pageNumber="60">L</emphasis>
.
<emphasis id="48C9EAD8D30C056FF9888D04CE48F8D9" box="[968,1080,1878,1902]" italics="true" pageId="59" pageNumber="60">macrodon</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>