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<document id="E4CC347C5024CEF5D2D3A8D9A31F1BEA" ID-CLB-Dataset="57784" ID-DOI="10.11646/zootaxa.5319.1.8" ID-GBIF-Dataset="50d0fc9c-3840-409f-a8cd-674ed70f0c13" ID-ISSN="1175-5326" ID-Zenodo-Dep="8182254" ID-ZooBank="45FDC018-670E-4227-B64E-C62AA6792102" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="julia" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_approvedBy="julia" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="julia" checkinTime="1690277344386" checkinUser="plazi" docAuthor="Santos, José Junior Dos, Mascarenhas, Carolina Silveira &amp; Müller, Gertrud" docDate="2023" docId="03F587AB5C7D0E5312FCFE7688CE2B63" docLanguage="en" docName="zootaxa.5319.1.8.pdf" docOrigin="Zootaxa 5319 (1)" docSource="http://dx.doi.org/10.11646/zootaxa.5319.1.8" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Nasuscoelum pampensis Santos &amp; Mascarenhas &amp; Müller 2023, n. sp." docType="treatment" docVersion="2" lastPageNumber="124" masterDocId="FFCCFFD35C7E0E57126BFF898906297A" masterDocTitle="A new genus and new species of Cyclocoelidae (Digenea), a parasite in spotted rail, Pardirallus maculatus (Gruiformes: Rallidae), in the Pampa biome, southern Brazil" masterLastPageNumber="126" masterPageNumber="120" pageNumber="123" updateTime="1690310418830" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="497BCE963A10345DEDDA270DFE497CEC">A new genus and new species of Cyclocoelidae (Digenea), a parasite in spotted rail, Pardirallus maculatus (Gruiformes: Rallidae), in the Pampa biome, southern Brazil</mods:title>
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<mods:namePart id="7E0360B201D992936A1B41B66C7E9DDC">Santos, José Junior Dos</mods:namePart>
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<mods:namePart id="7C9AD36EAF340143794930F4559507B0">Mascarenhas, Carolina Silveira</mods:namePart>
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<paragraph id="8BE336BD5C7D0E5412FCFE768B0C2B63" blockId="3.[151,522,511,538]" box="[151,522,511,538]" pageId="3" pageNumber="123">
<heading id="D0AB81D15C7D0E5412FCFE768B0C2B63" bold="true" box="[151,522,511,538]" fontSize="11" level="1" pageId="3" pageNumber="123" reason="1">
<emphasis id="B928EAAF5C7D0E5412FCFE768B0C2B63" bold="true" box="[151,522,511,538]" pageId="3" pageNumber="123">
<taxonomicName id="4C5C4D3E5C7D0E5412FCFE7688C62B63" authority="Santos &amp; Mascarenhas &amp; Müller, 2023" authorityName="Santos &amp; Mascarenhas &amp; Müller" authorityYear="2023" box="[151,448,511,538]" class="Trematoda" family="Cyclocoelidae" genus="Nasuscoelum" kingdom="Animalia" order="Plagiorchiida" pageId="3" pageNumber="123" phylum="Platyhelminthes" rank="species" species="pampensis" status="n. sp.">
<emphasis id="B928EAAF5C7D0E5412FCFE7688C62B63" bold="true" box="[151,448,511,538]" italics="true" pageId="3" pageNumber="123">Nasuscoelum pampensis</emphasis>
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<taxonomicNameLabel id="A21B57D45C7D0E5413A3FE768B0C2B63" box="[456,522,511,537]" pageId="3" pageNumber="123" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
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<subSubSection id="C34665365C7D0E5412FCFDCE88992DBF" pageId="3" pageNumber="123" type="description">
<paragraph id="8BE336BD5C7D0E5412FCFDCE8A632D20" blockId="3.[151,1437,583,1114]" pageId="3" pageNumber="123">
<emphasis id="B928EAAF5C7D0E5412FCFDCE88272B1B" bold="true" box="[151,289,583,609]" pageId="3" pageNumber="123">Description</emphasis>
: Based on
<specimenCount id="9D5AFD345C7D0E5413C7FDCE8B382B1B" box="[428,574,583,609]" pageId="3" pageNumber="123" type="generic">6 specimens</specimenCount>
. Large body, total length
<quantity id="4CA49B585C7D0E54111AFDCE8ADD2B1B" box="[881,987,583,610]" metricMagnitude="-2" metricUnit="m" metricValue="1.51" pageId="3" pageNumber="123" unit="mm" value="15.1">15.1 mm</quantity>
±1.6 (
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) and
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±0.5 (
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) wide in middle of body. Rudimentary oral sucker poorly developed. Short prepharynx 478.3±89.5 (300550). Large, round and very muscular pharynx 456.6±66.8 (350550) long and 578.3±78.9 (500 700) wide. Esophagus 1,158±119 (
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<geoCoordinate id="EE68507A5C7D0E54104CFD3A8B712BB4" box="[551,631,691,718]" degrees="1,300" direction="west" orientation="longitude" pageId="3" pageNumber="123" precision="55" value="-1.3">1,300</geoCoordinate>
), longer than prepharynx. Ceca forming cyclocoel, distance from cecal bifurcation to anterior extremity of body 7.6% (6.9%8.6%) of body length. Genital pore prepharyngeal, at level of anterior of pharynx. Smooth, spherical to subspherical testis in intercecal region of posterior 1/3 of body. Anterior testis 425±221.6 (150670) long and 413.3±200.8 (220620) wide. Posterior testis 495±76.9 (360600) long and 761.6±164.6 (5201,010) wide. Intertesticular space 1,045.8±108.9 (8501,150), approximately 6.9% of body length. Relatively small posttesticular space, 650±178.2 (475875), approximately 4.3% of body length. Cirrus sac 800 (750850) long [approximately 5.3% of body length] and 140 (120160) wide, based on
<specimenCount id="9D5AFD345C7D0E5416C1FC028C302ADF" box="[1194,1334,907,933]" pageId="3" pageNumber="123" type="generic">3 specimens</specimenCount>
. Seminal vesicle unobserved. Smooth and oval ovary situated intertesticularly, in triangle with the testis, 421.7±77.3 (320 550) long and 428.3±66.2 (340510) wide. Mehlis gland post-ovarian. Uterine seminal receptacle not observed. Laurers canal not observed. Vitelline follicles distributed along ceca from level short of distance posterior to the intestinal bifurcation to posterior extremity, confluent posteriorly. Uterus extensive, intercecal. Eggs, 130±5.5 (125 140) long and 65±4.5 (6070) wide, in anterior aspect of uterus.
</paragraph>
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<emphasis id="B928EAAF5C7D0E5412FCFB2288992DBF" bold="true" box="[151,415,1195,1221]" pageId="3" pageNumber="123">Taxonomic summary</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C34665365C7D0E5412FCFB7A8D702F54" pageId="3" pageNumber="123" type="biology_ecology">
<paragraph id="8BE336BD5C7D0E5412FCFB7A8D2B2C77" blockId="3.[151,1437,1267,2014]" box="[151,1069,1267,1293]" pageId="3" pageNumber="123">
<emphasis id="B928EAAF5C7D0E5412FCFB7A88142C77" bold="true" box="[151,274,1267,1293]" pageId="3" pageNumber="123">
<typeStatus id="54E7881F5C7D0E5412FCFB7A89D42C77" box="[151,210,1267,1293]" pageId="3" pageNumber="123">Type</typeStatus>
host.
</emphasis>
<taxonomicName id="4C5C4D3E5C7D0E541372FB7A8B922C77" authority="(Boddaert)" baseAuthorityName="Boddaert" baseAuthorityYear="1783" box="[281,660,1267,1293]" class="Aves" family="Rallidae" genus="Pardirallus" kingdom="Animalia" order="Gruiformes" pageId="3" pageNumber="123" phylum="Chordata" rank="species" species="maculatus">
<emphasis id="B928EAAF5C7D0E541372FB7A8B152C77" box="[281,531,1267,1293]" italics="true" pageId="3" pageNumber="123">Pardirallus maculatus</emphasis>
(Boddaert)
</taxonomicName>
(
<taxonomicName id="4C5C4D3E5C7D0E5410C9FB7A8A2F2C77" box="[674,809,1267,1293]" class="Aves" kingdom="Animalia" order="Gruiformes" pageId="3" pageNumber="123" phylum="Chordata" rank="order">Gruiformes</taxonomicName>
:
<taxonomicName id="4C5C4D3E5C7D0E541158FB7A8A932C77" box="[819,917,1267,1293]" class="Aves" family="Rallidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Gruiformes" pageId="3" pageNumber="123" phylum="Chordata" rank="family">Rallidae</taxonomicName>
), spotted rail.
</paragraph>
<paragraph id="8BE336BD5C7D0E5412ACFA9E8BC92C4B" blockId="3.[151,1437,1267,2014]" box="[199,719,1303,1329]" pageId="3" pageNumber="123">
<emphasis id="B928EAAF5C7D0E5412ACFA9E88882C4B" bold="true" box="[199,398,1303,1329]" pageId="3" pageNumber="123">Sites of infection.</emphasis>
nasal cavity and body cavity.
</paragraph>
<paragraph id="8BE336BD5C7D0E5412ACFAB28AAE2C2F" blockId="3.[151,1437,1267,2014]" box="[199,936,1339,1366]" pageId="3" pageNumber="123">
<emphasis id="B928EAAF5C7D0E5412ACFAB288672C2F" bold="true" box="[199,353,1339,1365]" pageId="3" pageNumber="123">
<typeStatus id="54E7881F5C7D0E5412ACFAB288062C2F" box="[199,256,1339,1365]" pageId="3" pageNumber="123">Type</typeStatus>
locality.
</emphasis>
Pelotas (
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<geoCoordinate id="EE68507A5C7D0E54101AFAB28A122C2C" box="[625,788,1339,1366]" degrees="52" direction="west" minutes="21" orientation="longitude" pageId="3" pageNumber="123" precision="1" seconds="43.3" value="-52.362026">52°2143.3”W</geoCoordinate>
), RS,
<collectingCountry id="F34B762D5C7D0E541137FAB28AA22C2F" box="[860,932,1339,1365]" name="Brazil" pageId="3" pageNumber="123">Brazil</collectingCountry>
.
</paragraph>
<paragraph id="8BE336BD5C7D0E5412ACFAD688EA2C03" blockId="3.[151,1437,1267,2014]" box="[199,492,1375,1401]" pageId="3" pageNumber="123">
<emphasis id="B928EAAF5C7D0E5412ACFAD6884B2C03" bold="true" box="[199,333,1375,1401]" pageId="3" pageNumber="123">Prevalence.</emphasis>
17.6% (3/17).
</paragraph>
<paragraph id="8BE336BD5C7D0E5412ACFA0A8B322CE7" blockId="3.[151,1437,1267,2014]" box="[199,564,1411,1437]" pageId="3" pageNumber="123">
<emphasis id="B928EAAF5C7D0E5412ACFA0A8B032CE7" bold="true" box="[199,517,1411,1437]" pageId="3" pageNumber="123">Mean intensity of infection.</emphasis>
3.7.
</paragraph>
<paragraph id="8BE336BD5C7D0E5412ACFA2E88CE2CBB" blockId="3.[151,1437,1267,2014]" box="[199,456,1447,1473]" pageId="3" pageNumber="123">
<emphasis id="B928EAAF5C7D0E5412ACFA2E889E2CBB" bold="true" box="[199,408,1447,1473]" pageId="3" pageNumber="123">Mean abundance.</emphasis>
0.6.
</paragraph>
<paragraph id="8BE336BD5C7D0E5412ACFA42886D2C9C" blockId="3.[151,1437,1267,2014]" box="[199,363,1483,1510]" pageId="3" pageNumber="123">
<emphasis id="B928EAAF5C7D0E5412ACFA4288322C9F" bold="true" box="[199,308,1483,1509]" pageId="3" pageNumber="123">Intensity.</emphasis>
25.
</paragraph>
<paragraph id="8BE336BD5C7D0E5412ACFA668D702F54" blockId="3.[151,1437,1267,2014]" pageId="3" pageNumber="123">
<emphasis id="B928EAAF5C7D0E5412ACFA6688CA2F73" bold="true" box="[199,460,1519,1545]" pageId="3" pageNumber="123">Deposited specimens.</emphasis>
<typeStatus id="54E7881F5C7D0E5413B2FA668B472F73" box="[473,577,1519,1545]" pageId="3" pageNumber="123">Holotype</typeStatus>
deposited in the CHLAPASIL-UFPel (994).
<typeStatus id="54E7881F5C7D0E541608FA798DD62F70" box="[1123,1232,1520,1546]" pageId="3" pageNumber="123">Paratypes</typeStatus>
deposited in the CHLAPASIL-UFPel (990993, 995, 996) and in the CHIOC (39749 a, 39749 b, 39750).
</paragraph>
</subSubSection>
<subSubSection id="C34665365C7D0E5412ACF9BE88022F0F" pageId="3" pageNumber="123" type="etymology">
<paragraph id="8BE336BD5C7D0E5412ACF9BE88022F0F" blockId="3.[151,1437,1267,2014]" pageId="3" pageNumber="123">
<emphasis id="B928EAAF5C7D0E5412ACF9BE88482F2B" bold="true" box="[199,334,1591,1617]" pageId="3" pageNumber="123">Etymology.</emphasis>
The specific name derives from the Pampa biome, the geographic area where the host was collected.
</paragraph>
</subSubSection>
<subSubSection id="C34665365C7D0E5312ACF9F688CE2B63" lastPageId="4" lastPageNumber="124" pageId="3" pageNumber="123" type="discussion">
<paragraph id="8BE336BD5C7D0E5312ACF9F68D732867" blockId="3.[151,1437,1267,2014]" lastBlockId="4.[151,1437,151,537]" lastPageId="4" lastPageNumber="124" pageId="3" pageNumber="123">
<emphasis id="B928EAAF5C7D0E5412ACF9F6883D2FE3" bold="true" box="[199,315,1663,1689]" pageId="3" pageNumber="123">Remarks.</emphasis>
The new genus and species exhibit characteristics of the subfamily
<taxonomicName id="4C5C4D3E5C7D0E541600F9F68C082FE3" authorityName="Stossich" authorityYear="1903" box="[1131,1294,1663,1689]" class="Trematoda" family="Cyclocoelidae" kingdom="Animalia" order="Plagiorchiida" pageId="3" pageNumber="123" phylum="Platyhelminthes" rank="subFamily" subFamily="Cyclocoelinae">Cyclocoelinae</taxonomicName>
, that is, the intertesticular ovary forms a triangle with the testes, as proposed by
<bibRefCitation id="EFCD4B4C5C7D0E5411C8F92D8D4A2FC7" author="Dronen, N. O." box="[931,1100,1699,1726]" pageId="3" pageNumber="123" pagination="55 - 68" refId="ref4245" refString="Dronen, N. O. (2007) Revision of the family Cyclocoelidae Stossich, 1902 with the proposal of two new subfamilies and the description of a new species of Morishitium Witenberg, 1928 from the common snipe, Gallinago gallinago, from Texas, U. S. A. Zootaxa, 1563 (1), 55 - 68. https: // doi. org / 10.11646 / zootaxa. 1563.1.5" type="journal article" year="2007">Dronen (2007)</bibRefCitation>
, who used the position of the ovary and testes to classify subfamilies of
<taxonomicName id="4C5C4D3E5C7D0E5410EDF94E8A2C2F9B" authorityName="Stossich" authorityYear="1902" box="[646,810,1735,1761]" class="Trematoda" family="Cyclocoelidae" kingdom="Animalia" order="Plagiorchiida" pageId="3" pageNumber="123" phylum="Platyhelminthes" rank="family">Cyclocoelidae</taxonomicName>
.
<taxonomicName id="4C5C4D3E5C7D0E54115CF94E8AD12F9B" authorityName="Stossich" authorityYear="1903" box="[823,983,1735,1761]" class="Trematoda" family="Cyclocoelidae" kingdom="Animalia" order="Plagiorchiida" pageId="3" pageNumber="123" phylum="Platyhelminthes" rank="subFamily" subFamily="Cyclocoelinae">Cyclocoelinae</taxonomicName>
genera were reorganized by
<bibRefCitation id="EFCD4B4C5C7D0E541742F94188372E7C" author="Dronen, N. O. &amp; Blend, C. K." pageId="3" pageNumber="123" pagination="1 - 100" refId="ref4321" refString="Dronen, N. O. &amp; Blend, C. K. (2015) Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007. Zootaxa, 4053 (1), 1 - 100. https: // doi. org / 10.11646 / zootaxa. 4053.1.1" type="journal article" year="2015">Dronen &amp; Blend (2015)</bibRefCitation>
. Their study considered the position of the genital pore and the confluence of the vitelline field to classify genera of this subfamily. Four genera were considered valid:
<taxonomicName id="4C5C4D3E5C7D0E5411ABF8868C072E53" authority="Brandes, 1892" authorityName="Brandes" authorityYear="1892" box="[960,1281,1807,1833]" class="Trematoda" family="Cyclocoelidae" genus="Cyclocoelum" kingdom="Animalia" order="Plagiorchiida" pageId="3" pageNumber="123" phylum="Platyhelminthes" rank="genus">
<emphasis id="B928EAAF5C7D0E5411ABF8868D542E53" box="[960,1106,1807,1833]" italics="true" pageId="3" pageNumber="123">Cyclocoelum</emphasis>
Brandes,
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</taxonomicName>
in which the genital pore is prepharyngeal and vitelline fields are confluent neither in the posterior nor in the anterior aspect of the body;
<taxonomicName id="4C5C4D3E5C7D0E5412B6F8DE8BE72E0B" authority="Dronen, Gardner &amp; Jimenez, 2006" authorityName="Dronen, Gardner &amp; Jimenez" authorityYear="2006" box="[221,737,1879,1906]" class="Trematoda" family="Cyclocoelidae" genus="Selfcoelum" kingdom="Animalia" order="Plagiorchiida" pageId="3" pageNumber="123" phylum="Platyhelminthes" rank="genus">
<emphasis id="B928EAAF5C7D0E5412B6F8DE885E2E0B" box="[221,344,1879,1905]" italics="true" pageId="3" pageNumber="123">Selfcoelum</emphasis>
Dronen, Gardner &amp; Jiménez, 2006
</taxonomicName>
, in which the genital pore is postpharyngeal and vitelline fields are confluent neither in the posterior nor the anterior end of the body;
<taxonomicName id="4C5C4D3E5C7D0E5411F5F8F288392EC3" authority="Dronen, Greiner, Ialeggio &amp; Nolan, 2009" authorityName="Dronen, Greiner, Ialeggio &amp; Nolan" authorityYear="2009" class="Trematoda" family="Cyclocoelidae" genus="Circumvitellatrema" kingdom="Animalia" order="Plagiorchiida" pageId="3" pageNumber="123" phylum="Platyhelminthes" rank="genus">
<emphasis id="B928EAAF5C7D0E5411F5F8F28D712EEF" box="[926,1143,1915,1941]" italics="true" pageId="3" pageNumber="123">Circumvitellatrema</emphasis>
Dronen, Greiner, Ialeggio &amp; Nolan,
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</taxonomicName>
in which the genital pore is postpharyngeal and vitelline fields are confluent both posteriorly at the posterior arch of the cyclocoel and anteriorly near the intestinal bifurcation; and
<taxonomicName id="4C5C4D3E5C7D0E531676F84A89C929CB" authority="Dronen &amp; Kinsella, 2009" authorityName="Dronen &amp; Kinsella" authorityYear="2009" class="Trematoda" family="Cyclocoelidae" genus="Psophiatrema" kingdom="Animalia" lastPageId="4" lastPageNumber="124" order="Plagiorchiida" pageId="3" pageNumber="123" phylum="Platyhelminthes" rank="genus">
<emphasis id="B928EAAF5C7D0E541676F84A8DBF2EA7" box="[1053,1209,1987,2013]" italics="true" pageId="3" pageNumber="123">Psophiatrema</emphasis>
Dronen &amp; Kinsella,
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</taxonomicName>
in which the genital pore is postpharyngeal and vitelline fields are confluent near the posterior end but not confluent anteriorly in the area of the intestinal bifurcation. In this context,
<taxonomicName id="4C5C4D3E5C7A0E531189FF328D7129AF" authority="Santos &amp; Mascarenhas &amp; Müller, 2023" authorityName="Santos &amp; Mascarenhas &amp; Müller" authorityYear="2023" box="[994,1143,187,213]" class="Trematoda" family="Cyclocoelidae" genus="Nasuscoelum" kingdom="Animalia" order="Plagiorchiida" pageId="4" pageNumber="124" phylum="Platyhelminthes" rank="genus" status="n. gen.">
<emphasis id="B928EAAF5C7A0E531189FF328D7129AF" box="[994,1143,187,213]" italics="true" pageId="4" pageNumber="124">Nasuscoelum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21B57D45C7A0E531615FF328DCC29AF" box="[1150,1226,187,213]" pageId="4" pageNumber="124" rank="genus">n. gen.</taxonomicNameLabel>
is described as the fifth genus of
<taxonomicName id="4C5C4D3E5C7A0E531351FF5688DB2983" authorityName="Stossich" authorityYear="1903" box="[314,477,223,249]" class="Trematoda" family="Cyclocoelidae" kingdom="Animalia" order="Plagiorchiida" pageId="4" pageNumber="123" phylum="Platyhelminthes" rank="subFamily" subFamily="Cyclocoelinae">Cyclocoelinae</taxonomicName>
, whereas
<taxonomicName id="4C5C4D3E5C7A0E531025FF568A642982" authority="Santos &amp; Mascarenhas &amp; Müller, 2023" authorityName="Santos &amp; Mascarenhas &amp; Müller" authorityYear="2023" box="[590,866,223,249]" class="Trematoda" family="Cyclocoelidae" genus="Nasuscoelum" kingdom="Animalia" order="Plagiorchiida" pageId="4" pageNumber="124" phylum="Platyhelminthes" rank="species" species="pampensis" status="n. sp.">
<emphasis id="B928EAAF5C7A0E531025FF568A642982" box="[590,866,223,249]" italics="true" pageId="4" pageNumber="124">Nasuscoelum pampensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21B57D45C7A0E531100FF568AAE2983" box="[875,936,223,249]" pageId="4" pageNumber="124" rank="species">n. sp.</taxonomicNameLabel>
has a prepharyngeal genital pore, confluent vitelline field in the posterior of the body and a non-confluent one in the anterior region.
</paragraph>
<paragraph id="8BE336BD5C7A0E5312ACFEAE88CE2B63" blockId="4.[151,1437,151,537]" pageId="4" pageNumber="124">
Another species of
<taxonomicName id="4C5C4D3E5C7A0E5313C5FEAE8B57283B" authorityName="Stossich" authorityYear="1903" box="[430,593,295,321]" class="Trematoda" family="Cyclocoelidae" kingdom="Animalia" order="Plagiorchiida" pageId="4" pageNumber="123" phylum="Platyhelminthes" rank="subFamily" subFamily="Cyclocoelinae">Cyclocoelinae</taxonomicName>
,
<taxonomicName id="4C5C4D3E5C7A0E53100AFEAE8BEE283B" baseAuthorityName="Zeder" baseAuthorityYear="1800" box="[609,744,295,321]" class="Trematoda" family="Cyclocoelidae" genus="Cyclocoelum" kingdom="Animalia" order="Plagiorchiida" pageId="4" pageNumber="124" phylum="Platyhelminthes" rank="species" species="mutabile">
<emphasis id="B928EAAF5C7A0E53100AFEAE8BEE283B" box="[609,744,295,321]" italics="true" pageId="4" pageNumber="124">C. mutabile</emphasis>
</taxonomicName>
, is similar to
<taxonomicName id="4C5C4D3E5C7A0E5311F8FEAE8DAC283A" authority="Santos &amp; Mascarenhas &amp; Müller, 2023" authorityName="Santos &amp; Mascarenhas &amp; Müller" authorityYear="2023" box="[915,1194,295,321]" class="Trematoda" family="Cyclocoelidae" genus="Nasuscoelum" kingdom="Animalia" order="Plagiorchiida" pageId="4" pageNumber="124" phylum="Platyhelminthes" rank="species" species="pampensis" status="n. sp.">
<emphasis id="B928EAAF5C7A0E5311F8FEAE8DAC283A" box="[915,1194,295,321]" italics="true" pageId="4" pageNumber="124">Nasuscoelum pampensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21B57D45C7A0E5316DDFEAE8DF1283B" box="[1206,1271,295,321]" pageId="4" pageNumber="124" rank="species">n. sp.</taxonomicNameLabel>
However, the difference between both is clear due to the confluence of the vitelline field in the posterior region of
<taxonomicName id="4C5C4D3E5C7A0E53176CFEC2880B28F2" authority="Santos &amp; Mascarenhas &amp; Müller, 2023" authorityName="Santos &amp; Mascarenhas &amp; Müller" authorityYear="2023" class="Trematoda" family="Cyclocoelidae" genus="Nasuscoelum" kingdom="Animalia" order="Plagiorchiida" pageId="4" pageNumber="124" phylum="Platyhelminthes" rank="species" species="pampensis" status="n. sp.">
<emphasis id="B928EAAF5C7A0E53176CFEC2880B28F2" italics="true" pageId="4" pageNumber="124">Nasuscoelum pampensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21B57D45C7A0E53137DFEE6885228F3" box="[278,340,367,393]" pageId="4" pageNumber="124" rank="species">n. sp.</taxonomicNameLabel>
(
<figureCitation id="13672A385C7A0E53130EFEE688B228F3" box="[357,436,367,393]" captionStart="FIGURE 1" captionStartId="2.[152,255,1043,1067]" captionTargetBox="[522,1063,309,1016]" captionTargetId="figure-45@2.[522,1066,307,1017]" captionTargetPageId="2" captionText="FIGURE 1. Nasuscoelum pampensis n. gen., n. sp. parasite of Pardirallus maculatus (Boddaert) (Gruiformes: Rallidae) in southern Brazil. A. Ventral view, pharynx (ph), ceca (c), and uterus (u). B. Anterior extremity, genital pore (gp), and cirrus sac (cs). C. Ovarian complex, ovary (ov), Mehlis gland (mg), posterior testis (pt)." figureDoi="http://doi.org/10.5281/zenodo.8182256" httpUri="https://zenodo.org/record/8182256/files/figure.png" pageId="4" pageNumber="124">Figs. 1</figureCitation>
&amp;
<figureCitation id="13672A385C7A0E5313B7FEE688ED28F3" box="[476,491,367,393]" captionStart="FIGURE 2" captionStartId="2.[152,255,1943,1967]" captionTargetBox="[567,1021,1164,1920]" captionTargetId="figure-100@2.[567,1021,1164,1920]" captionTargetPageId="2" captionText="FIGURE 2. Nasuscoelum pampensis n. gen., n. sp. parasite of Pardirallus maculatus (Boddaert) (Gruiformes: Rallidae) in southern Brazil. A. Anterior extremity, pharynx (ph), cirrus sac (cs). B. Posterior extremity, ovary (ov), Mehlis gland (mg), posterior testis (pt), anterior testis (at)." figureDoi="http://doi.org/10.5281/zenodo.8182260" httpUri="https://zenodo.org/record/8182260/files/figure.png" pageId="4" pageNumber="124">2</figureCitation>
) by comparison with
<taxonomicName id="4C5C4D3E5C7A0E53108CFEE68A6A28F3" baseAuthorityName="Zeder" baseAuthorityYear="1800" box="[743,876,367,393]" class="Trematoda" family="Cyclocoelidae" genus="Cyclocoelum" kingdom="Animalia" order="Plagiorchiida" pageId="4" pageNumber="124" phylum="Platyhelminthes" rank="species" species="mutabile">
<emphasis id="B928EAAF5C7A0E53108CFEE68A6A28F3" box="[743,876,367,393]" italics="true" pageId="4" pageNumber="124">C. mutabile</emphasis>
</taxonomicName>
(see fig. 1 of
<bibRefCitation id="EFCD4B4C5C7A0E53167AFEE68C1228F3" author="Dronen, N. O. &amp; Blend, C. K." box="[1041,1300,366,393]" pageId="4" pageNumber="124" pagination="1 - 100" refId="ref4321" refString="Dronen, N. O. &amp; Blend, C. K. (2015) Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007. Zootaxa, 4053 (1), 1 - 100. https: // doi. org / 10.11646 / zootaxa. 4053.1.1" type="journal article" year="2015">Dronen &amp; Blend 2015</bibRefCitation>
), which has non-confluent vitelline fields in the posterior region of the body. In addition,
<taxonomicName id="4C5C4D3E5C7A0E531180FE1A8DFA28D6" authority="Santos &amp; Mascarenhas &amp; Müller, 2023" authorityName="Santos &amp; Mascarenhas &amp; Müller" authorityYear="2023" box="[1003,1276,403,429]" class="Trematoda" family="Cyclocoelidae" genus="Nasuscoelum" kingdom="Animalia" order="Plagiorchiida" pageId="4" pageNumber="124" phylum="Platyhelminthes" rank="species" species="pampensis" status="n. sp.">
<emphasis id="B928EAAF5C7A0E531180FE1A8DFA28D6" box="[1003,1276,403,429]" italics="true" pageId="4" pageNumber="124">Nasuscoelum pampensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21B57D45C7A0E531768FE1A8C3828D7" box="[1283,1342,403,429]" pageId="4" pageNumber="124" rank="species">n. sp.</taxonomicNameLabel>
exhibits some distinct morphometric differences, such as body width, smaller pharynx and anterior and posterior testes and larger eggs than
<taxonomicName id="4C5C4D3E5C7A0E53133CFE5288DA288F" baseAuthorityName="Zeder" baseAuthorityYear="1800" box="[343,476,475,501]" class="Trematoda" family="Cyclocoelidae" genus="Cyclocoelum" kingdom="Animalia" order="Plagiorchiida" pageId="4" pageNumber="124" phylum="Platyhelminthes" rank="species" species="mutabile">
<emphasis id="B928EAAF5C7A0E53133CFE5288DA288F" box="[343,476,475,501]" italics="true" pageId="4" pageNumber="124">C. mutabile</emphasis>
</taxonomicName>
recorded in other species of
<taxonomicName id="4C5C4D3E5C7A0E531145FE528A8D288F" box="[814,907,475,501]" class="Aves" family="Rallidae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Gruiformes" pageId="4" pageNumber="124" phylum="Chordata" rank="family">Rallidae</taxonomicName>
(
<tableCitation id="C6DE03065C7A0E5311F7FE528AF7288F" box="[924,1009,475,501]" captionStart="TABLE 1" captionStartId="4.[152,244,584,608]" captionTargetPageId="4" captionText="TABLE 1. Morphometric characteristics of Cyclocoelum mutabile (Zeder, 1800) and Nasuscoelum pampensis n. gen., n. sp. (Digenea: Cyclocoelidae), parasites of the Rallidae." httpUri="http://table.plazi.org/id/DF2366355C7A0E5312F3FDC18BE52BFE" pageId="4" pageNumber="124" tableUuid="DF2366355C7A0E5312F3FDC18BE52BFE">Table 1</tableCitation>
) (
<bibRefCitation id="EFCD4B4C5C7A0E531666FE528DC0288F" author="Fernandes, B. M. M." box="[1037,1222,475,501]" pageId="4" pageNumber="124" pagination="289 - 294" refId="ref4613" refString="Fernandes, B. M. M. (1976) Sobre as especies Brasileiras da Familia Cyclocoelidae Kossack 1911 (Trematoda, Cyclocoelidae). Memorias do Instituto Oswaldo Cruz, 74 (3 - 4), 289 - 294. https: // doi. org / 10.1590 / S 0074 - 02761976000300008" type="journal article" year="1976">Fernandes 1976</bibRefCitation>
;
<bibRefCitation id="EFCD4B4C5C7A0E5316BFFE528C9E288F" author="Sitko, J. &amp; Bizos, J. &amp; Heneberg, P." box="[1236,1432,475,501]" pageId="4" pageNumber="124" pagination="368 - 383" refId="ref5344" refString="Sitko, J., Bizos, J. &amp; Heneberg, P. (2016) Central European parasitic flatworms of the Cyclocoelidae Stossich, 1902 (Trematoda: Plagiorchiida): molecular and comparative morphological analysis suggests the reclassification of Cyclocoelum obscurum (Leidy, 1887) into the Harrahium Witenberg, 1926. Parasitology, 144 (4), 368 - 383. https: // doi. org / 10.1017 / S 0031182016001955" type="journal article" year="2016">
Sitko
<emphasis id="B928EAAF5C7A0E531772FE528C4A288F" box="[1305,1356,475,501]" italics="true" pageId="4" pageNumber="124">et al</emphasis>
. 2016
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;
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Gomez-Puerta
<emphasis id="B928EAAF5C7A0E53132BFE7688772B63" box="[320,369,511,537]" italics="true" pageId="4" pageNumber="124">et al</emphasis>
. 2018
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).
</paragraph>
</subSubSection>
</treatment>
</document>