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<document id="509637032A35F8459D91C1327D7F8F18" ID-DOI="10.5281/zenodo.209761" ID-GBIF-Dataset="2b78cedc-fd40-4bff-98c5-12aacd319fc4" ID-ISSN="1175-5326" ID-Zenodo-Dep="209761" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460563593877" checkinUser="plazi" docAuthor="Calhoun, Dana M. &amp; Dronen, Norman O." docDate="2012" docId="C9111C113937DC39FF3575809072F9D1" docLanguage="en" docName="zt03589p029.pdf" docOrigin="Zootaxa 3589" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Mesocoelium" docType="treatment" docVersion="9" lastPageNumber="21" masterDocId="352864693923DC2DFFA27517937AFF9F" masterDocTitle="A reevaluation of specimens of Mesocoelium monas (Platyhelminthes: Digenea: Mesocoeliidae) from the Natural History Museum, UK and the United States National Parasite Collection, USA" masterLastPageNumber="29" masterPageNumber="1" pageNumber="21" updateTime="1698320643524" updateUser="plazi">
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<mods:title id="ADF08B55A4B1C7627E89F3E6E89273DA">A reevaluation of specimens of Mesocoelium monas (Platyhelminthes: Digenea: Mesocoeliidae) from the Natural History Museum, UK and the United States National Parasite Collection, USA</mods:title>
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<mods:namePart id="83396CC69A2E95E95C575DFC39AC56CD">Calhoun, Dana M.</mods:namePart>
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<mods:namePart id="3A13906B8BB3F915F73526EEBF3F4011">Dronen, Norman O.</mods:namePart>
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<mods:date id="B7E958F7B4A5F2E1A9236ACF69FF65C1">2012</mods:date>
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<mods:number id="FC588278D41830A2CCCE735BE523C630">3589</mods:number>
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<treatment id="C9111C113937DC39FF3575809072F9D1" ID-DOI="http://doi.org/10.5281/zenodo.5618430" ID-GBIF-Taxon="119557239" ID-Zenodo-Dep="5618430" LSID="urn:lsid:plazi:treatment:C9111C113937DC39FF3575809072F9D1" httpUri="http://treatment.plazi.org/id/C9111C113937DC39FF3575809072F9D1" lastPageNumber="21" pageId="20" pageNumber="21">
<subSubSection id="09A2FE8C3937DC39FF35758091D1FEA1" pageId="20" pageNumber="21" type="nomenclature">
<paragraph id="4107AD073937DC39FF357580906BFF2E" blockId="20.[151,785,151,210]" box="[151,785,151,177]" pageId="20" pageNumber="21">
<heading id="1A4F1A6B3937DC39FF357580906BFF2E" bold="true" box="[151,785,151,177]" fontSize="11" level="1" pageId="20" pageNumber="21" reason="1">
<emphasis id="73CC71153937DC39FF357580906BFF2E" bold="true" box="[151,785,151,177]" pageId="20" pageNumber="21">
<emphasis id="73CC71153937DC39FF35758092AFFF2E" bold="true" box="[151,469,151,177]" italics="true" pageId="20" pageNumber="21">
<taxonomicName id="86B8D6843937DC39FF3575809242FF2E" ID-CoL="7PGXC" box="[151,312,151,177]" class="Trematoda" family="Mesocoeliidae" genus="Mesocoelium" kingdom="Animalia" order="Plagiorchiida" pageId="20" pageNumber="21" phylum="Platyhelminthes" rank="genus">Mesocoelium</taxonomicName>
cf monodi—
</emphasis>
NHMUK 1980.7.14 50-54
</emphasis>
</heading>
</paragraph>
<paragraph id="4107AD073937DC39FF3575AD920CFF4D" blockId="20.[151,785,151,210]" box="[151,374,186,210]" pageId="20" pageNumber="21">
(
<figureCitation id="D983B1823937DC39FF3C75AD9274FF4D" box="[158,270,186,210]" captionStart="FIGURE 13" captionStartId="21.[151,250,1728,1751]" captionText="FIGURE 13. Mesocoelium cf monodi— NHMUK 1980.7. 14 50 - 54 from Bufo marinus, ventral view of adult." pageId="20" pageNumber="21">Figure 13</figureCitation>
,
<tableCitation id="0C3A98BC3937DC39FEB875AD9217FF4D" box="[282,365,186,210]" captionStart="TABLE 3" captionStartId="19.[151,235,673,694]" captionTargetBox="[151,1436,784,1362]" captionTargetPageId="19" captionText="TABLE 3. Comparative measurements, morphometric percentages and morphometric ratios for species of Mesocoelium previously identified as Mesocoelium monas that appear to be Mesocoelium monodi from the Natural History Museum, UK and the United States Parasitology Collection." httpUri="http://table.plazi.org/id/15C7FD8F3930DC3EFF3577B69145FD6B" pageId="20" pageNumber="21" tableUuid="15C7FD8F3930DC3EFF3577B69145FD6B">Table 3</tableCitation>
)
</paragraph>
<paragraph id="4107AD073937DC39FF3574149020FE85" blockId="20.[151,1436,258,1614]" box="[151,858,258,283]" pageId="20" pageNumber="21">
<emphasis id="73CC71153937DC39FF35741493A2FE84" bold="true" box="[151,216,259,283]" pageId="20" pageNumber="21">Host:</emphasis>
<taxonomicName id="86B8D6843937DC39FF7D74149280FE85" authority="Linnaeus" authorityName="Linnaeus" box="[223,506,258,283]" class="Amphibia" family="Bufonidae" genus="Bufo" kingdom="Animalia" order="Anura" pageId="20" pageNumber="21" phylum="Chordata" rank="species" species="marinus">
<emphasis id="73CC71153937DC39FF7D7414920DFE84" box="[223,375,259,283]" italics="true" pageId="20" pageNumber="21">Bufo marinus</emphasis>
(Linnaeus)
</taxonomicName>
, cane toad (
<taxonomicName id="86B8D6843937DC39FDDC741591B3FE85" box="[638,713,258,282]" class="Amphibia" kingdom="Animalia" order="Anura" pageId="20" pageNumber="21" phylum="Chordata" rank="order">Anura</taxonomicName>
;
<taxonomicName id="86B8D6843937DC39FD7674159033FE85" box="[724,841,258,282]" class="Amphibia" family="Bufonidae" kingdom="Animalia" order="Anura" pageId="20" pageNumber="21" phylum="Chordata" rank="family">Bufonidae</taxonomicName>
).
</paragraph>
<paragraph id="4107AD073937DC39FF65743191D1FEA1" blockId="20.[151,1436,258,1614]" box="[199,683,294,319]" pageId="20" pageNumber="21">
<emphasis id="73CC71153937DC39FF6574319248FEA0" bold="true" box="[199,306,294,319]" pageId="20" pageNumber="21">Locality:</emphasis>
<collectingCountry id="39AFED973937DC39FE9B7430916FFEA1" box="[313,533,294,318]" name="Papua New Guinea" pageId="20" pageNumber="21">Papua New Guinea</collectingCountry>
. (Introduced)
</paragraph>
</subSubSection>
<subSubSection id="09A2FE8C3937DC39FF65745D97ECFD71" pageId="20" pageNumber="21" type="description">
<paragraph id="4107AD073937DC39FF65745D97ECFD71" blockId="20.[151,1436,258,1614]" pageId="20" pageNumber="21">
<emphasis id="73CC71153937DC39FF65745D9221FEFC" bold="true" box="[199,347,330,355]" pageId="20" pageNumber="21">Description:</emphasis>
Based on two specimens: Body elliptical, tapered posteriorly, 2,094 (1,4042,784) by 511 (620962); forebody 832 long, representing 40% of body length (n=1). Mouth nearly terminal; oral sucker subspherical, 223 (190255) by 220 (210231); prepharynx absent; pharynx spherical to broadly subspherical, 66 (5081) by 91 (78104); ratio of width of pharynx to width of oral sucker 1:2.5 (1:2.21:2.7); esophagus 105 (90121) long; ceca surpassing ovary posteriorly, occupying 42% (3747%) of postovarian space. Ventral sucker spherical to subspherical, situated in anterior 1/3 of body, 146 (110182) by 154 (125182); ratio of width of ventral sucker to width of oral sucker 1:1.5 (1:1.31:1.7). Testes subspherical, opposite; right testis 91104 wide; left testis 169205. Genital pore submedian, located at level of posterior 1/3 of pharynx. Cirrus sac 191 long, representing 9% of body length (n=1). Ovary subspherical to laterally elongate, 148 (114182) by 143 (91195); postovarian space 1,047 (1,0611,846) long, representing 50% (4766%) of body length. Uterus extensive, filling hindbody. Vitelline follicles distributed in lateral fields from level of posterior margin of oral sucker to level of cecal ends or more posterior. Eggs 33 (2936) by 21 (1823). Excretory system not visible.
</paragraph>
</subSubSection>
<subSubSection id="09A2FE8C3937DC39FF6577EC9072F9D1" pageId="20" pageNumber="21" type="discussion">
<paragraph id="4107AD073937DC39FF6577EC9260FCE1" blockId="20.[151,1436,258,1614]" pageId="20" pageNumber="21">
<emphasis id="73CC71153937DC39FF6577EC9247FC8C" bold="true" box="[199,317,763,787]" pageId="20" pageNumber="21">Remarks:</emphasis>
Both specimens were in poor condition and appear to be contracted, displacing the genital pore anteriorly where it appears to be nearly at the level of the pharynx in one specimen. Specimens are rolled to one side and have an irregular body shape. Additionally, the ceca have been twisted at, or just below the cecal bifurcation.
</paragraph>
<paragraph id="4107AD073937DC39FF65769D9666FBC9" blockId="20.[151,1436,258,1614]" pageId="20" pageNumber="21">
Although these specimens have ceca that surpass the ovary posteriorly and a prebifurcal genital pore, and are assigned to the
<taxonomicName id="86B8D6843937DC39FEEA76B892EBFC59" box="[328,401,943,966]" class="Trematoda" family="Mesocoeliidae" genus="Mesocoelium" kingdom="Animalia" order="Plagiorchiida" pageId="20" pageNumber="21" phylum="Platyhelminthes" rank="species" species="monas">monas</taxonomicName>
body
<typeStatus id="9E0313A53937DC39FE7876B89177FC58" box="[474,525,943,967]" pageId="20" pageNumber="21">type</typeStatus>
, they cannot be assigned specifically to
<taxonomicName id="86B8D6843937DC39FC7A76A79732FC58" box="[984,1096,943,967]" class="Trematoda" family="Mesocoeliidae" genus="Mesocoelium" kingdom="Animalia" order="Plagiorchiida" pageId="20" pageNumber="21" phylum="Platyhelminthes" rank="species" species="monas">
<emphasis id="73CC71153937DC39FC7A76A79095FC58" box="[984,1007,944,967]" italics="true" pageId="20" pageNumber="21">M</emphasis>
.
<emphasis id="73CC71153937DC39FC5D76A79732FC58" box="[1023,1096,944,967]" italics="true" pageId="20" pageNumber="21">monas</emphasis>
</taxonomicName>
. These specimens differ from
<taxonomicName id="86B8D6843937DC39FF3576C3927CFC74" box="[151,262,979,1003]" class="Trematoda" family="Mesocoeliidae" genus="Mesocoelium" kingdom="Animalia" order="Plagiorchiida" pageId="20" pageNumber="21" phylum="Platyhelminthes" rank="species" species="monas">
<emphasis id="73CC71153937DC39FF3576C393D4FC74" box="[151,174,980,1003]" italics="true" pageId="20" pageNumber="21">M</emphasis>
.
<emphasis id="73CC71153937DC39FF1F76C3927CFC74" box="[189,262,980,1003]" italics="true" pageId="20" pageNumber="21">monas</emphasis>
</taxonomicName>
by having vitelline follicles that terminate near to, or surpass the cecal ends posteriorly compared with terminating well short of the cecal ends, a narrower oral sucker (210231 compared with 382), a narrower pharynx (78104 compared with 138), a narrower ventral sucker (125182 compared with 344), and a slightly larger percentage of the ceca that surpass the ovary into the postovarian space (3747% compared with 31%).
</paragraph>
<paragraph id="4107AD073937DC39FF6571759139FACD" blockId="20.[151,1436,258,1614]" pageId="20" pageNumber="21">
Both specimens are consistent with
<taxonomicName id="86B8D6843937DC39FDCE71739190FBE4" box="[620,746,1123,1147]" class="Trematoda" family="Mesocoeliidae" genus="Mesocoelium" kingdom="Animalia" order="Plagiorchiida" pageId="20" pageNumber="21" phylum="Platyhelminthes" rank="species" species="monodi">
<emphasis id="73CC71153937DC39FDCE717391F9FBE4" box="[620,643,1124,1147]" italics="true" pageId="20" pageNumber="21">M</emphasis>
.
<emphasis id="73CC71153937DC39FD3471749190FBE4" box="[662,746,1123,1147]" italics="true" pageId="20" pageNumber="21">monodi</emphasis>
</taxonomicName>
by having a submedian genital pore, a similar ratio of the ventral sucker width to the oral sucker width (1:1.31:1.7 compared with 1:1.3), a similar ratio of the oral sucker width to the pharynx width (1:2.21:2.7 compared with 1:2.8), and a similar length of the postovarian space (1,0611,846; 4766% of body length compared with 1,680; 56%).
<taxonomicName id="86B8D6843937DC39FC3071D997F8FB79" box="[914,1154,1230,1254]" class="Trematoda" family="Mesocoeliidae" genus="Mesocoelium" kingdom="Animalia" order="Plagiorchiida" pageId="20" pageNumber="21" phylum="Platyhelminthes" rank="species" species="monodi">
<emphasis id="73CC71153937DC39FC3071D997F8FB79" box="[914,1154,1230,1254]" italics="true" pageId="20" pageNumber="21">Mesocoelium monodi</emphasis>
</taxonomicName>
was originally described from
<taxonomicName id="86B8D6843937DC39FF7771E49142FA95" authority="Hallowell" authorityName="Hallowell" box="[213,568,1266,1291]" class="Magnoliopsida" family="Asteraceae" genus="Chamaeleon" kingdom="Animalia" order="Asterales" pageId="20" pageNumber="21" phylum="Tracheophyta" rank="species" species="gracilis">
<emphasis id="73CC71153937DC39FF7771E492BBFA94" box="[213,449,1267,1291]" italics="true" pageId="20" pageNumber="21">Chamaeleon gracilis</emphasis>
Hallowell
</taxonomicName>
(syn.
<taxonomicName id="86B8D6843937DC39FD2271E490D4FA95" authority="Gray" authorityName="Gray" box="[640,942,1266,1291]" class="Magnoliopsida" family="Asteraceae" genus="Chamaeleon" kingdom="Animalia" order="Asterales" pageId="20" pageNumber="21" phylum="Tracheophyta" rank="species" species="gracilis">
<emphasis id="73CC71153937DC39FD2271E49011FA94" box="[640,875,1267,1291]" italics="true" pageId="20" pageNumber="21">Chamaeleon gracilis</emphasis>
Gray
</taxonomicName>
) from Central Arica rather than
<taxonomicName id="86B8D6843937DC39FA8271E396E6FA94" box="[1312,1436,1267,1291]" class="Amphibia" family="Bufonidae" genus="Bufo" kingdom="Animalia" order="Anura" pageId="20" pageNumber="21" phylum="Chordata" rank="species" species="marinus">
<emphasis id="73CC71153937DC39FA8271E3964BFA94" box="[1312,1329,1268,1291]" italics="true" pageId="20" pageNumber="21">B</emphasis>
.
<emphasis id="73CC71153937DC39FAE271E396E6FA94" box="[1344,1436,1268,1291]" italics="true" pageId="20" pageNumber="21">marinus</emphasis>
</taxonomicName>
from
<collectingCountry id="39AFED973937DC39FF78700092B9FAB1" box="[218,451,1302,1326]" name="Papua New Guinea" pageId="20" pageNumber="21">Papua New Guinea</collectingCountry>
). Additionally, these specimens have a longer forebody (832; 40% of body length compared with
<taxonomicName id="86B8D6843937DC39FEE7702B92C4FACC" box="[325,446,1339,1363]" class="Trematoda" family="Mesocoeliidae" genus="Mesocoelium" kingdom="Animalia" order="Plagiorchiida" pageId="20" pageNumber="21" phylum="Platyhelminthes" rank="species" species="monodi">
<emphasis id="73CC71153937DC39FEE7702B9226FACC" box="[325,348,1340,1363]" italics="true" pageId="20" pageNumber="21">M</emphasis>
.
<emphasis id="73CC71153937DC39FEC8702C92C4FACC" box="[362,446,1339,1363]" italics="true" pageId="20" pageNumber="21">monodi</emphasis>
</taxonomicName>
(778; 26%)
</paragraph>
<paragraph id="4107AD073937DC39FF6570499072F9D1" blockId="20.[151,1436,258,1614]" pageId="20" pageNumber="21">
Given the similarities between these specimens (NHMUK 1980.7.14 50-54) and those in USNPC 0 97835.00 (both sets are from
<collectingCountry id="39AFED973937DC39FEDE70949124FA05" box="[380,606,1410,1434]" name="Papua New Guinea" pageId="20" pageNumber="21">Papua New Guinea</collectingCountry>
), it is possible that together they may represent an undescribed species; however, the variation in egg size and poor condition of the USNPC specimens make description impractical. The specimens from USNPC have a similar ratio of the pharynx width to the oral sucker width (1:2.7 compared with 1:2.5 [1.2.01:2.7]), a similar egg size (36 [2942] by 20 [1821] compared with 33 [2936] by 21 [1823]), and both sets of specimens have the vitelline fields distributed in lateral fields from the level of the posterior margin of the oral sucker to the level of the cecal ends posteriorly.
</paragraph>
</subSubSection>
</treatment>
</document>