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<document id="F6C93037F16220AC2B4366CC5F57F3F7" ID-CLB-Dataset="5558" ID-DOI="10.11646/zootaxa.4991.1.2" ID-GBIF-Dataset="ac2def2f-7a9a-4585-baed-c50ffe8cddaf" ID-ISSN="1175-5326" ID-Zenodo-Dep="5027482" ID-ZooBank="585A1043-224B-488B-ADBA-47DE8DE27869" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1624549319310" checkinUser="plazi" docAuthor="Karar, Yasser F. M., Blend, Charles K., Dronen, Norman O. &amp; Adel, Asmaa" docDate="2021" docId="5046879BFFCEA5174D86F9A05B4BFE5D" docLanguage="en" docName="zootaxa.4991.1.2.pdf" docOrigin="Zootaxa 4991 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Astiotrema karachiensis Bilqees, Khatoon &amp; Khan 2002, n. comb." docType="treatment" docVersion="8" lastPageNumber="58" masterDocId="AC7FFFE3FFDBA5014D11FFF55F62FFA8" masterDocTitle="Towards resolving the problematic status of the digenean genus Astiotrema Looss 1900: An updated concept and revision of species composition for Astiotrema (sensu stricto)" masterLastPageNumber="72" masterPageNumber="36" pageNumber="57" updateTime="1699241276579" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="27830941386B491DB6DF978C34EAF665">Towards resolving the problematic status of the digenean genus Astiotrema Looss 1900: An updated concept and revision of species composition for Astiotrema (sensu stricto)</mods:title>
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<mods:namePart id="3C3397677C66C02F7C36A04FCF727EB2">Karar, Yasser F. M.</mods:namePart>
<mods:affiliation id="93AF58E36137B3FD378B7A2A813D0008">Department of Zoology, Faculty of Sciences, New Valley University, Kharga, New Valley, Egypt. &amp; Research Associate, Laboratory of Parasitology, Department of Ecology &amp; Conservation Biology, College of Agriculture &amp; Life Sciences, Texas A &amp; M University, College Station, Texas 77843, U. S. A.</mods:affiliation>
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<mods:namePart id="D62D91994FCABA6495BA2E2FE4E4FDD1">Blend, Charles K.</mods:namePart>
<mods:affiliation id="A771F7044D749068AA486CD25BB5C405">Corpus Christi Museum of Science &amp; History, 1900 N. Chaparral St., Corpus Christi, Texas 78401, U. S. A. &amp; Laboratory of Parasitology, Biodiversity Research &amp; Teaching Collection, Department of Ecology &amp; Conservation Biology, College of Agriculture &amp; Life Sciences, Texas A &amp; M University, College Station, Texas 77843, U. S. A.</mods:affiliation>
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<mods:namePart id="BF2B8FE10864D04AACA1E66685C29715">Dronen, Norman O.</mods:namePart>
<mods:affiliation id="00F4A2E88476D0E4F31DBF85C798955A">Laboratory of Parasitology, Biodiversity Research &amp; Teaching Collection, Department of Ecology &amp; Conservation Biology, College of Agriculture &amp; Life Sciences, Texas A &amp; M University, College Station, Texas 77843, U. S. A. &amp; The Schubot Center for Avian Health, Department of Veterinary Pathobiology, College of Veterinary Medicine &amp; Biomedical Sciences, Texas A &amp; M University, College Station, Texas 77843, U. S. A</mods:affiliation>
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<mods:namePart id="B0B13CB895CE7F06EEBAC426D2D00E6B">Adel, Asmaa</mods:namePart>
<mods:affiliation id="FE08FC7405E483055AD212560102CE27">Department of Zoology, Faculty of Sciences, South Valley University, 83523 Qena, Egypt.</mods:affiliation>
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<paragraph id="D850368DFFCEA5144D86F9A05CA3F9C7" blockId="21.[151,961,1621,1683]" box="[151,961,1621,1648]" pageId="21" pageNumber="57">
<heading id="831881E1FFCEA5144D86F9A05CA3F9C7" bold="true" box="[151,961,1621,1648]" fontSize="11" level="1" pageId="21" pageNumber="57" reason="1">
<emphasis id="EA9BEA9FFFCEA5144D86F9A05CA3F9C7" bold="true" box="[151,961,1621,1648]" pageId="21" pageNumber="57">
<taxonomicName id="1FEF4D0EFFCEA5144D86F9A05C2DF9C7" authority="Bilqees, Khatoon &amp; Khan, 2002" authorityName="Bilqees, Khatoon &amp; Khan" authorityYear="2002" baseAuthorityName="Karar &amp; Blend &amp; Dronen &amp; Adel" baseAuthorityYear="2021" box="[151,847,1621,1648]" class="Trematoda" family="Plagiorchiidae" genus="Astiotrema" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="21" pageNumber="57" phylum="Platyhelminthes" rank="species" species="karachiensis" status="comb. nov.">
<emphasis id="EA9BEA9FFFCEA5144D86F9A05EDEF9D8" bold="true" box="[151,444,1621,1648]" italics="true" pageId="21" pageNumber="57">Astiotrema karachiensis</emphasis>
<bibRefCitation id="BC7E4B7CFFCEA5144CD2F9A05C2DF9C7" author="Bilqees, F. M. &amp; Khatoon, N. &amp; Khan, A." box="[451,847,1621,1647]" pageId="21" pageNumber="57" pagination="279 - 282" refId="ref23915" refString="Bilqees, F. M., Khatoon, N. &amp; Khan, A. (2002) Astioglossimetra karachiensis n. gen., n. sp. (Trematoda: Plagiorchiidae: Astiotrematinae) from the marine turtle Chelonia mydas of Karachi Coast. Turkish Journal of Zoology, 26 (3), 279 - 282." type="journal article" year="2002">Bilqees, Khatoon &amp; Khan, 2002</bibRefCitation>
</taxonomicName>
<taxonomicNameLabel id="F1A857E4FFCEA5144E47F9A05CA3F9C7" box="[854,961,1621,1647]" pageId="21" pageNumber="57" rank="species">n. comb.</taxonomicNameLabel>
</emphasis>
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<paragraph id="D850368DFFCEA5144D86F98C5E26F93B" blockId="21.[151,961,1621,1683]" box="[151,324,1657,1683]" pageId="21" pageNumber="57">
(
<figureCitation id="40D42A08FFCEA5144D8EF98C5E5EF93B" box="[159,316,1657,1683]" captionStart="FIGURES 26 &amp; 27" captionStartId="23.[151,264,1554,1578]" captionTargetBox="[160,1424,192,1519]" captionTargetId="figure-29@23.[151,1436,181,1530]" captionTargetPageId="23" captionText="FIGURES 26 &amp; 27. Astiotrema karachiensis Bilqees, Khatoon &amp; Khan, 2002 n. comb. 26. A. karachiensis, dorsal view, redrawn from Bilqees et al. (2002, fig. 1). 27. A. karachiensis, ventral view, redrawn from Bilqees et al. (2002, fig. 3). Abbreviations: AT, anterior testis; Ce, cecum; CP, cirrus-pouch; Es, esophagus; GP, genital pore; OS, oral sucker; Ov, ovary; Ph, pharynx; PP, pars prostatica; PT, posterior testis; SR, seminal receptacle; SV, seminal vesicle; Ut, uterus; VF, vitelline follicle; VS, ventral sucker. Scale bars: Fig. 26 = 500 µm; Fig. 27 = 500 µm." figureDoi="http://doi.org/10.5281/zenodo.5027505" httpUri="https://zenodo.org/record/5027505/files/figure.png" pageId="21" pageNumber="57">Figs. 26 &amp; 27</figureCitation>
)
</paragraph>
<paragraph id="D850368DFFCEA5144D86F94B5CCEF97E" blockId="21.[151,940,1726,1750]" box="[151,940,1726,1750]" pageId="21" pageNumber="57">
(Syn.:
<taxonomicName id="1FEF4D0EFFCEA5144DCAF94B5C3BF97E" authority="Bilqees, Khatoon &amp; Khan, 2002" authorityName="Bilqees, Khatoon &amp; Khan" authorityYear="2002" box="[219,857,1726,1750]" class="Trematoda" family="Opisthorchiidae" genus="Astioglossimetra" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="21" pageNumber="57" phylum="Platyhelminthes" rank="species" species="karachiensis">
<emphasis id="EA9BEA9FFFCEA5144DCAF94B5D69F97E" box="[219,523,1726,1750]" italics="true" pageId="21" pageNumber="57">Astioglossimetra karachiensis</emphasis>
<bibRefCitation id="BC7E4B7CFFCEA5144F03F94B5C3BF97E" author="Bilqees, F. M. &amp; Khatoon, N. &amp; Khan, A." box="[530,857,1726,1750]" pageId="21" pageNumber="57" pagination="279 - 282" refId="ref23915" refString="Bilqees, F. M., Khatoon, N. &amp; Khan, A. (2002) Astioglossimetra karachiensis n. gen., n. sp. (Trematoda: Plagiorchiidae: Astiotrematinae) from the marine turtle Chelonia mydas of Karachi Coast. Turkish Journal of Zoology, 26 (3), 279 - 282." type="journal article" year="2002">Bilqees, Khatoon &amp; Khan, 2002</bibRefCitation>
</taxonomicName>
<emphasis id="EA9BEA9FFFCEA5144E4EF94B5CC7F97E" bold="true" box="[863,933,1726,1750]" pageId="21" pageNumber="57">
<taxonomicNameLabel id="F1A857E4FFCEA5144E4EF94B5CC7F97E" box="[863,933,1726,1750]" pageId="21" pageNumber="57">n. syn.</taxonomicNameLabel>
</emphasis>
)
</paragraph>
<paragraph id="D850368DFFCEA5144D86F8F15DC3F8B6" blockId="21.[151,1436,1796,2039]" box="[151,673,1796,1823]" pageId="21" pageNumber="57">
<emphasis id="EA9BEA9FFFCEA5144D86F8F15EF1F8B6" bold="true" box="[151,403,1796,1822]" pageId="21" pageNumber="57">
Record (see
<tableCitation id="956D0336FFCEA5144C38F8F15EE3F8B6" box="[297,385,1796,1822]" captionStart="TABLE 1" captionStartId="25.[151,239,151,175]" captionTargetPageId="25" captionText="TABLE 1. List of species of Astiotrema (sensu stricto) Looss, 1900 we recognize followed by recorded host species and geographical distribution." httpUri="http://table.plazi.org/id/8C906605FFC2A5184D86FF625EC8FF7B" pageId="21" pageNumber="57" tableUuid="8C906605FFC2A5184D86FF625EC8FF7B">Table 1</tableCitation>
):
</emphasis>
1.
<bibRefCitation id="BC7E4B7CFFCEA5144CA4F8F15DFFF8B6" author="Bilqees, F. M. &amp; Khatoon, N. &amp; Khan, A." box="[437,669,1796,1823]" pageId="21" pageNumber="57" pagination="279 - 282" refId="ref23915" refString="Bilqees, F. M., Khatoon, N. &amp; Khan, A. (2002) Astioglossimetra karachiensis n. gen., n. sp. (Trematoda: Plagiorchiidae: Astiotrematinae) from the marine turtle Chelonia mydas of Karachi Coast. Turkish Journal of Zoology, 26 (3), 279 - 282." type="journal article" year="2002">
Bilqees
<emphasis id="EA9BEA9FFFCEA5144F01F8F05D20F8B6" box="[528,578,1796,1822]" italics="true" pageId="21" pageNumber="57">et al</emphasis>
. (2002)
</bibRefCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="90F56506FFCEA5174DD6F8DD5B4BFE5D" lastPageId="22" lastPageNumber="58" pageId="21" pageNumber="57" type="discussion">
<paragraph id="D850368DFFCEA5174DD6F8DD5EEAFE05" blockId="21.[151,1436,1796,2039]" lastBlockId="22.[151,1437,151,501]" lastPageId="22" lastPageNumber="58" pageId="21" pageNumber="57">
<emphasis id="EA9BEA9FFFCEA5144DD6F8DD5E5FF8EA" bold="true" box="[199,317,1832,1858]" pageId="21" pageNumber="57">Remarks:</emphasis>
<taxonomicName id="1FEF4D0EFFCEA5144C54F8DD5D37F8EA" authorityName="Bilqees, Khatoon &amp; Khan" authorityYear="2002" baseAuthorityName="Karar &amp; Blend &amp; Dronen &amp; Adel" baseAuthorityYear="2021" box="[325,597,1832,1858]" class="Trematoda" family="Plagiorchiidae" genus="Astiotrema" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="21" pageNumber="57" phylum="Platyhelminthes" rank="species" species="karachiensis">
<emphasis id="EA9BEA9FFFCEA5144C54F8DD5D37F8EA" box="[325,597,1832,1858]" italics="true" pageId="21" pageNumber="57">Astiotrema karachiensis</emphasis>
</taxonomicName>
, described by
<bibRefCitation id="BC7E4B7CFFCEA5144FEAF8DD5C81F8EA" author="Bilqees, F. M. &amp; Khatoon, N. &amp; Khan, A." box="[763,995,1832,1859]" pageId="21" pageNumber="57" pagination="279 - 282" refId="ref23915" refString="Bilqees, F. M., Khatoon, N. &amp; Khan, A. (2002) Astioglossimetra karachiensis n. gen., n. sp. (Trematoda: Plagiorchiidae: Astiotrematinae) from the marine turtle Chelonia mydas of Karachi Coast. Turkish Journal of Zoology, 26 (3), 279 - 282." type="journal article" year="2002">
Bilqees
<emphasis id="EA9BEA9FFFCEA5144E46F8DC5CEBF8EA" box="[855,905,1832,1858]" italics="true" pageId="21" pageNumber="57">et al</emphasis>
. (2002)
</bibRefCitation>
from off the Karachi coast of
<collectingCountry id="A0F8761DFFCEA514482CF8DD5AFEF8EA" box="[1341,1436,1832,1858]" name="Pakistan" pageId="21" pageNumber="57">Pakistan</collectingCountry>
as
<taxonomicName id="1FEF4D0EFFCEA5144DA7F8B95D6AF8CE" authorityName="Bilqees, Khatoon &amp; Khan" authorityYear="2002" box="[182,520,1868,1894]" class="Trematoda" family="Opisthorchiidae" genus="Astioglossimetra" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="21" pageNumber="57" phylum="Platyhelminthes" rank="species" species="karachiensis">
<emphasis id="EA9BEA9FFFCEA5144DA7F8B95D6AF8CE" box="[182,520,1868,1894]" italics="true" pageId="21" pageNumber="57">Astioglossimetra karachiensis</emphasis>
</taxonomicName>
, is easily distinguished from other species of
<taxonomicName id="1FEF4D0EFFCEA514491EF8B95BEBF8CE" box="[1039,1161,1868,1894]" class="Trematoda" family="Plagiorchiidae" genus="Astiotrema" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="21" pageNumber="57" phylum="Platyhelminthes" rank="genus">
<emphasis id="EA9BEA9FFFCEA514491EF8B95BEBF8CE" box="[1039,1161,1868,1894]" italics="true" pageId="21" pageNumber="57">Astiotrema</emphasis>
</taxonomicName>
as it represents the only recognized species reported from a marine host, the green sea turtle,
<taxonomicName id="1FEF4D0EFFCEA5144EB2F8855B38F822" baseAuthorityName="Linnaeus" baseAuthorityYear="1758" box="[931,1114,1904,1930]" class="Reptilia" family="Cheloniidae" genus="Chelonia" kingdom="Animalia" order="Testudines" pageId="21" pageNumber="57" phylum="Chordata" rank="species" species="mydas">
<emphasis id="EA9BEA9FFFCEA5144EB2F8855B38F822" box="[931,1114,1904,1930]" italics="true" pageId="21" pageNumber="57">Chelonia mydas</emphasis>
</taxonomicName>
. While we noted earlier that the green sea turtle,
<taxonomicName id="1FEF4D0EFFCEA5144C6AF8615E87F806" baseAuthorityName="Linnaeus" baseAuthorityYear="1758" box="[379,485,1940,1967]" class="Reptilia" family="Cheloniidae" genus="Chelonia" kingdom="Animalia" order="Testudines" pageId="21" pageNumber="57" phylum="Chordata" rank="species" species="mydas">
<emphasis id="EA9BEA9FFFCEA5144C6AF8615EECF806" box="[379,398,1940,1966]" italics="true" pageId="21" pageNumber="57">C</emphasis>
.
<emphasis id="EA9BEA9FFFCEA5144C8CF8615E87F806" box="[413,485,1940,1966]" italics="true" pageId="21" pageNumber="57">mydas</emphasis>
</taxonomicName>
, was a “suspicious habitat/name” as a host for
<taxonomicName id="1FEF4D0EFFCEA5144EE9F8615BA6F806" authorityName="Dhanumkumari" authorityYear="1999" box="[1016,1220,1940,1967]" class="Trematoda" family="Plagiorchiidae" genus="Astiotrema" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="21" pageNumber="57" phylum="Platyhelminthes" rank="species" species="hanumantharai">
<emphasis id="EA9BEA9FFFCEA5144EE9F8615B6BF806" box="[1016,1033,1940,1966]" italics="true" pageId="21" pageNumber="57">A</emphasis>
.
<emphasis id="EA9BEA9FFFCEA5144906F8615BA6F806" box="[1047,1220,1940,1966]" italics="true" pageId="21" pageNumber="57">hanumantharai</emphasis>
</taxonomicName>
(=
<taxonomicName id="1FEF4D0EFFCEA51449FDF8615A01F806" authorityName="Bhalerao" authorityYear="1936" box="[1260,1379,1940,1967]" class="Trematoda" family="Plagiorchiidae" genus="Astiotrema" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="21" pageNumber="57" phylum="Platyhelminthes" rank="species" species="odhneri">
<emphasis id="EA9BEA9FFFCEA51449FDF8615B9FF806" box="[1260,1277,1940,1966]" italics="true" pageId="21" pageNumber="57">A</emphasis>
.
<emphasis id="EA9BEA9FFFCEA514481DF8615A01F806" box="[1292,1379,1940,1966]" italics="true" pageId="21" pageNumber="57">odhneri</emphasis>
</taxonomicName>
) and in need of confirmation, herein it is considered a valid host species for
<taxonomicName id="1FEF4D0EFFCEA5144ED5F84D5B17F87A" authorityName="Bilqees, Khatoon &amp; Khan" authorityYear="2002" box="[964,1141,1976,2003]" class="Trematoda" family="Opisthorchiidae" genus="Astioglossimetra" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="21" pageNumber="57" phylum="Platyhelminthes" rank="species" species="karachiensis">
<emphasis id="EA9BEA9FFFCEA5144ED5F84D5CB7F87A" box="[964,981,1976,2002]" italics="true" pageId="21" pageNumber="57">A</emphasis>
.
<emphasis id="EA9BEA9FFFCEA5144EF5F84D5B17F87A" box="[996,1141,1976,2002]" italics="true" pageId="21" pageNumber="57">karachiensis</emphasis>
</taxonomicName>
<emphasis id="EA9BEA9FFFCEA5144964F84D5B1BF87A" box="[1141,1145,1976,2002]" italics="true" pageId="21" pageNumber="57">.</emphasis>
Regardless of the marine environment of
<taxonomicName id="1FEF4D0EFFCEA5144C40F8295D60F85E" authorityName="Bilqees, Khatoon &amp; Khan" authorityYear="2002" box="[337,514,2012,2039]" class="Trematoda" family="Opisthorchiidae" genus="Astioglossimetra" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="21" pageNumber="57" phylum="Platyhelminthes" rank="species" species="karachiensis">
<emphasis id="EA9BEA9FFFCEA5144C40F8295E00F85E" box="[337,354,2012,2038]" italics="true" pageId="21" pageNumber="57">A</emphasis>
.
<emphasis id="EA9BEA9FFFCEA5144C65F8295D60F85E" box="[372,514,2012,2038]" italics="true" pageId="21" pageNumber="57">karachiensis</emphasis>
</taxonomicName>
, it is very closely related to
<taxonomicName id="1FEF4D0EFFCEA5144E46F8295CB2F85E" authorityName="Bhalerao" authorityYear="1936" box="[855,976,2012,2039]" class="Trematoda" family="Plagiorchiidae" genus="Astiotrema" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="21" pageNumber="57" phylum="Platyhelminthes" rank="species" species="odhneri">
<emphasis id="EA9BEA9FFFCEA5144E46F8295C0AF85E" box="[855,872,2012,2038]" italics="true" pageId="21" pageNumber="57">A</emphasis>
.
<emphasis id="EA9BEA9FFFCEA5144E68F8295CB2F85E" box="[889,976,2012,2038]" italics="true" pageId="21" pageNumber="57">odhneri</emphasis>
</taxonomicName>
in almost every morphological feature; however, some morphological differentiation should be taken into consideration to avoid overlap with
<taxonomicName id="1FEF4D0EFFCDA5174834FF625AFEFF19" authorityName="Bhalerao" authorityYear="1936" box="[1317,1436,151,177]" class="Trematoda" family="Plagiorchiidae" genus="Astiotrema" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="22" pageNumber="58" phylum="Platyhelminthes" rank="species" species="odhneri">
<emphasis id="EA9BEA9FFFCDA5174834FF625A54FF19" box="[1317,1334,151,177]" italics="true" pageId="22" pageNumber="58">A</emphasis>
.
<emphasis id="EA9BEA9FFFCDA5174854FF625AFEFF19" box="[1349,1436,151,177]" italics="true" pageId="22" pageNumber="58">odhneri</emphasis>
</taxonomicName>
since these particular features undergo a wide range of variation in
<taxonomicName id="1FEF4D0EFFCDA5174E90FF4E5C98FF7D" authorityName="Bhalerao" authorityYear="1936" box="[897,1018,187,213]" class="Trematoda" family="Plagiorchiidae" genus="Astiotrema" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="22" pageNumber="58" phylum="Platyhelminthes" rank="species" species="odhneri">
<emphasis id="EA9BEA9FFFCDA5174E90FF4E5CF0FF7D" box="[897,914,187,213]" italics="true" pageId="22" pageNumber="58">A</emphasis>
.
<emphasis id="EA9BEA9FFFCDA5174E8EFF4E5C98FF7D" box="[927,1018,187,213]" italics="true" pageId="22" pageNumber="58">odhneri</emphasis>
</taxonomicName>
<emphasis id="EA9BEA9FFFCDA5174EEBFF4E5C9CFF7D" box="[1018,1022,187,213]" italics="true" pageId="22" pageNumber="58">.</emphasis>
These differences include: (i) an oral sucker distinctly larger than the ventral one in
<taxonomicName id="1FEF4D0EFFCDA5174F8FFF2A5C29FF51" authorityName="Bilqees, Khatoon &amp; Khan" authorityYear="2002" box="[670,843,223,249]" class="Trematoda" family="Opisthorchiidae" genus="Astioglossimetra" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="22" pageNumber="58" phylum="Platyhelminthes" rank="species" species="karachiensis">
<emphasis id="EA9BEA9FFFCDA5174F8FFF2A5DCDFF51" box="[670,687,223,249]" italics="true" pageId="22" pageNumber="58">A</emphasis>
.
<emphasis id="EA9BEA9FFFCDA5174FACFF2A5C29FF51" box="[701,843,223,249]" italics="true" pageId="22" pageNumber="58">karachiensis</emphasis>
</taxonomicName>
<emphasis id="EA9BEA9FFFCDA5174E40FF2A5C0AFF50" box="[849,872,223,248]" italics="true" pageId="22" pageNumber="58">vs</emphasis>
suckers roughly equal in size in
<taxonomicName id="1FEF4D0EFFCDA51749C6FF2A5A2FFF51" authorityName="Bhalerao" authorityYear="1936" box="[1239,1357,223,249]" class="Trematoda" family="Plagiorchiidae" genus="Astiotrema" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="22" pageNumber="58" phylum="Platyhelminthes" rank="species" species="odhneri">
<emphasis id="EA9BEA9FFFCDA51749C6FF2A5B8AFF51" box="[1239,1256,223,249]" italics="true" pageId="22" pageNumber="58">A</emphasis>
.
<emphasis id="EA9BEA9FFFCDA51749E7FF2A5A2FFF51" box="[1270,1357,223,249]" italics="true" pageId="22" pageNumber="58">odhneri</emphasis>
</taxonomicName>
; (ii)
<taxonomicName id="1FEF4D0EFFCDA5174895FF2A5E47FEB5" authorityName="Bilqees, Khatoon &amp; Khan" authorityYear="2002" class="Trematoda" family="Opisthorchiidae" genus="Astioglossimetra" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="22" pageNumber="58" phylum="Platyhelminthes" rank="species" species="karachiensis">
<emphasis id="EA9BEA9FFFCDA5174895FF2A5AF7FF51" box="[1412,1429,223,249]" italics="true" pageId="22" pageNumber="58">A</emphasis>
.
<emphasis id="EA9BEA9FFFCDA5174D86FEF65E47FEB5" box="[151,293,259,285]" italics="true" pageId="22" pageNumber="58">karachiensis</emphasis>
</taxonomicName>
has a conspicuous muscular esophagus
<emphasis id="EA9BEA9FFFCDA5174FE0FEF65C6AFEB4" box="[753,776,259,284]" italics="true" pageId="22" pageNumber="58">vs</emphasis>
<taxonomicName id="1FEF4D0EFFCDA5174E00FEF65CEBFEB5" authorityName="Bhalerao" authorityYear="1936" box="[785,905,259,285]" class="Trematoda" family="Plagiorchiidae" genus="Astiotrema" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="22" pageNumber="58" phylum="Platyhelminthes" rank="species" species="odhneri">
<emphasis id="EA9BEA9FFFCDA5174E00FEF65C40FEB5" box="[785,802,259,285]" italics="true" pageId="22" pageNumber="58">A</emphasis>
.
<emphasis id="EA9BEA9FFFCDA5174E23FEF65CEBFEB5" box="[818,905,259,285]" italics="true" pageId="22" pageNumber="58">odhneri</emphasis>
</taxonomicName>
which possesses a straight, longer and thinner one; and (iii) in
<taxonomicName id="1FEF4D0EFFCDA5174C58FED25E94FEE9" authorityName="Bilqees, Khatoon &amp; Khan" authorityYear="2002" box="[329,502,295,321]" class="Trematoda" family="Opisthorchiidae" genus="Astioglossimetra" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="22" pageNumber="58" phylum="Platyhelminthes" rank="species" species="karachiensis">
<emphasis id="EA9BEA9FFFCDA5174C58FED25E38FEE9" box="[329,346,295,321]" italics="true" pageId="22" pageNumber="58">A</emphasis>
.
<emphasis id="EA9BEA9FFFCDA5174C79FED25E94FEE9" box="[360,502,295,321]" italics="true" pageId="22" pageNumber="58">karachiensis</emphasis>
</taxonomicName>
, the anterior limit of the vitelline field is at the level of the intestinal bifurcation and is thus anterior to the level of the ventral sucker, whereas in
<taxonomicName id="1FEF4D0EFFCDA5174E2CFEBE5CD1FECD" authorityName="Bhalerao" authorityYear="1936" box="[829,947,331,357]" class="Trematoda" family="Plagiorchiidae" genus="Astiotrema" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="22" pageNumber="58" phylum="Platyhelminthes" rank="species" species="odhneri">
<emphasis id="EA9BEA9FFFCDA5174E2CFEBE5C2CFECD" box="[829,846,331,357]" italics="true" pageId="22" pageNumber="58">A</emphasis>
.
<emphasis id="EA9BEA9FFFCDA5174E4DFEBE5CD1FECD" box="[860,947,331,357]" italics="true" pageId="22" pageNumber="58">odhneri</emphasis>
</taxonomicName>
it is either anterior to the level of the ovary or extends further to reach the level of the anterior margin of the ventral sucker, but it does not reach the level of the intestinal bifurcation.
</paragraph>
<paragraph id="D850368DFFCDA5174DD6FE425B4BFE5D" blockId="22.[151,1437,151,501]" pageId="22" pageNumber="58">
Given the comprehensive review and newly added morphological data provided herein, we present below a key to the 8 species of
<taxonomicName id="1FEF4D0EFFCDA5174C79FE2E5E80FE5D" box="[360,482,475,501]" class="Trematoda" family="Plagiorchiidae" genus="Astiotrema" higherTaxonomySource="GBIF" kingdom="Animalia" order="Plagiorchiida" pageId="22" pageNumber="58" phylum="Platyhelminthes" rank="genus">
<emphasis id="EA9BEA9FFFCDA5174C79FE2E5E80FE5D" box="[360,482,475,501]" italics="true" pageId="22" pageNumber="58">Astiotrema</emphasis>
</taxonomicName>
(
<emphasis id="EA9BEA9FFFCDA5174CE2FE2E5DE2FE5C" box="[499,640,475,500]" italics="true" pageId="22" pageNumber="58">sensu stricto</emphasis>
) we now recognize within this genus.
</paragraph>
</subSubSection>
</treatment>
</document>