treatments-xml/data/03/F2/DF/03F2DF380248FFB3FDFC4FEEFC4D7EAC.xml

<document id="600E254939B4382F0CCA6405B4F697F2" ID-DOI="10.5852/ejt.2024.962.2683" ID-ISSN="2118-9773" ID-Zenodo-Dep="13947260" ID-ZooBank="40171C5B-90EB-4641-91FF-EA8CA2C60D23" IM.bibliography_approvedBy="carolina" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="carolina" IM.metadata_approvedBy="carolina" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="carolina" IM.treatments_approvedBy="carolina" checkinTime="1729183243575" checkinUser="plazi" docAuthor="Ramos-Sánchez, Mariela" docDate="2024" docId="03F2DF380248FFB3FDFC4FEEFC4D7EAC" docLanguage="en" docName="EJT.2024.962.1-67.pdf" docOrigin="European Journal of Taxonomy 962 (1)" docSource="https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2683/12419" docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1" docStyleId="EF2B578F1D15862ADE45B0C07C620911" docStyleName="EJT.2018-.journal_article.type1" docStyleVersion="14" docTitle="Callioplana marianae Ramos-Sánchez, 2024, sp. nov." docType="treatment" docVersion="1" lastPageNumber="9" masterDocId="FFCBA740024AFFBBFF994B10FFC27830" masterDocTitle="The polyclads (Platyhelminthes: Polycladida) from the Tropical Eastern Pacific: Commented checklist and description of a new species" masterLastPageNumber="67" masterPageNumber="1" pageNumber="3" updateTime="1729616903908" updateUser="carolina" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0" zenodo-license-treatments="UNSPECIFIED">
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<mods:title id="4CC598C298BBED18FD17469139429480">The polyclads (Platyhelminthes: Polycladida) from the Tropical Eastern Pacific: Commented checklist and description of a new species</mods:title>
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<mods:namePart id="6E3AEE21511001C993E6B95817777BB7">Ramos-Sánchez, Mariela</mods:namePart>
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<mods:affiliation id="E71F138398ED30D39413E83AD958D4B9">Doctorado en Ciencias Biológico Agropecuarias, Área Ciencias Biológico Agropecuaria y Pesquera, Ciudad de la cultura “ Amado Nervo ”, Tepic, Nayarit, 63000, Mexico. &amp; Laboratorio de Sistemática de Invertebrados Marinos (LABSIM), Universidad del Mar, campus Puerto Ángel, Ciudad Universitaria, Puerto Ángel, Oaxaca, 70902, Mexico.</mods:affiliation>
<mods:nameIdentifier id="926E46DE4E1B9464BC61877809BA1DDC" type="email">rmariela220@gmail.com</mods:nameIdentifier>
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<mods:title id="275F7A76CF8FF68E4E7C54DBA39FFDF5">European Journal of Taxonomy</mods:title>
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<mods:date id="61899DF9A0245B7FE21283359251B6F0">2024</mods:date>
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<treatment id="03F2DF380248FFB3FDFC4FEEFC4D7EAC" LSID="urn:lsid:plazi:treatment:03F2DF380248FFB3FDFC4FEEFC4D7EAC" httpUri="http://treatment.plazi.org/id/03F2DF380248FFB3FDFC4FEEFC4D7EAC" lastPageId="8" lastPageNumber="9" pageId="2" pageNumber="3">
<subSubSection id="C3413DA50248FFB9FDFC4FEEFC0D7D29" box="[613,975,1278,1305]" pageId="2" pageNumber="3" type="nomenclature">
<paragraph id="8BE46E2E0248FFB9FDFC4FEEFC0D7D29" blockId="2.[358,1229,1278,1374]" box="[613,975,1278,1305]" pageId="2" pageNumber="3">
<heading id="D0ACD9420248FFB9FDFC4FEEFC0D7D29" box="[613,975,1278,1305]" centered="true" fontSize="11" level="2" pageId="2" pageNumber="3" reason="2">
<taxonomicName id="4C5B15AD0248FFB9FDFC4FEEFCAC7D29" authorityName="Ramos-Sánchez" authorityYear="2024" box="[613,878,1278,1305]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="2" pageNumber="3" phylum="Platyhelminthes" rank="species" species="marianae" status="sp. nov.">
<emphasis id="B92FB23C0248FFB9FDFC4FEEFCAC7D29" bold="true" box="[613,878,1278,1305]" italics="true" pageId="2" pageNumber="3">Callioplana marianae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21C0F470248FFB9FCEC4FEFFC0D7D29" box="[885,975,1279,1305]" pageId="2" pageNumber="3" rank="species">sp. nov.</taxonomicNameLabel>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C3413DA50248FFB9FEFF4E31FC8F7D6E" pageId="2" pageNumber="3" type="description">
<paragraph id="8BE46E2E0248FFB9FEFF4E31FB0F7D0B" blockId="2.[358,1229,1278,1374]" box="[358,1229,1313,1339]" pageId="2" pageNumber="3">
<uri id="FFCA622C0248FFB9FEFF4E31FB0F7D0B" box="[358,1229,1313,1339]" pageId="2" pageNumber="3">
urn:lsid:zoobank.org:act: 
<uuid id="FFFD54FB0248FFB9FD1F4E31FB0F7D0B" box="[646,1229,1313,1339]" pageId="2" pageNumber="3">3A061F94-72BB-4EBA-BB1B-F022A4F96D4C</uuid>
</uri>
</paragraph>
<paragraph id="8BE46E2E0248FFB9FD7E4E54FC8F7D6E" blockId="2.[358,1229,1278,1374]" box="[743,845,1348,1374]" pageId="2" pageNumber="3">
<figureCitation id="136072AB0248FFB9FD7E4E54FC8F7D6E" box="[743,845,1348,1374]" captionStart-0="Fig" captionStart-1="Fig" captionStart-2="Fig" captionStartId-0="4.[189,232,1776,1802]" captionStartId-1="5.[189,232,1814,1840]" captionStartId-2="6.[189,232,1716,1742]" captionTargetBox-0="[189,1398,267,1734]" captionTargetBox-1="[189,1398,269,1755]" captionTargetBox-2="[257,1335,294,1636]" captionTargetId-0="figure-16@4.[189,1398,267,1734]" captionTargetId-1="figure-11@5.[189,1398,269,1755]" captionTargetId-2="figure-16@6.[232,1355,265,1669]" captionTargetPageId-0="4" captionTargetPageId-1="5" captionTargetPageId-2="6" captionText-0="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." captionText-1="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." captionText-2="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi-0="http://doi.org/10.5281/zenodo.13947262" figureDoi-1="http://doi.org/10.5281/zenodo.13947264" figureDoi-2="http://doi.org/10.5281/zenodo.13947266" httpUri-0="https://zenodo.org/record/13947262/files/figure.png" httpUri-1="https://zenodo.org/record/13947264/files/figure.png" httpUri-2="https://zenodo.org/record/13947266/files/figure.png" pageId="2" pageNumber="3">Figs 1–3</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="C3413DA50248FFB9FF244E95FCFB7E4B" pageId="2" pageNumber="3" type="diagnosis">
<paragraph id="8BE46E2E0248FFB9FF244E95FEF47DAF" blockId="2.[189,310,1413,1439]" box="[189,310,1413,1439]" pageId="2" pageNumber="3">
<heading id="D0ACD9420248FFB9FF244E95FEF47DAF" bold="true" box="[189,310,1413,1439]" fontSize="11" level="3" pageId="2" pageNumber="3" reason="3">
<emphasis id="B92FB23C0248FFB9FF244E95FEF47DAF" bold="true" box="[189,310,1413,1439]" pageId="2" pageNumber="3">Diagnosis</emphasis>
</heading>
</paragraph>
<paragraph id="8BE46E2E0248FFB9FF244EA3FCFB7E4B" blockId="2.[188,1399,1459,1659]" pageId="2" pageNumber="3">
<taxonomicName id="4C5B15AD0248FFB9FF244EA3FE037DFD" authorityName="Ramos-Sánchez" authorityYear="2024" box="[189,449,1459,1485]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="2" pageNumber="3" phylum="Platyhelminthes" rank="species" species="marianae" status="sp. nov.">
<emphasis id="B92FB23C0248FFB9FF244EA3FE037DFD" box="[189,449,1459,1485]" italics="true" pageId="2" pageNumber="3">Callioplana marianae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21C0F470248FFB9FE534EA3FDE77DFD" box="[458,549,1459,1485]" pageId="2" pageNumber="3" rank="species">sp. nov.</taxonomicNameLabel>
is characterized by a beige background coloration with light brown and white pigmentation that gives it a reticulated appearance, nipple-shaped nuchal tentacles, cerebral and tentacular eyes, absence of marginal eyes, a folded pharynx located slightly posterior to the first third of the body, separated gonopores, an oval seminal vesicle located posterior to the free prostatic vesicle that presents a striated internal glandular lining, a penis papilla armed with a filiform stylet, and a tripartite Lang’s vesicle located posterior to the male gonopore.
</paragraph>
</subSubSection>
<subSubSection id="C3413DA50248FFB9FF244DB1FBE77ED9" box="[189,1061,1697,1769]" pageId="2" pageNumber="3" type="etymology">
<paragraph id="8BE46E2E0248FFB9FF244DB1FE867E8B" blockId="2.[189,324,1697,1723]" box="[189,324,1697,1723]" pageId="2" pageNumber="3">
<heading id="D0ACD9420248FFB9FF244DB1FE867E8B" bold="true" box="[189,324,1697,1723]" fontSize="11" level="3" pageId="2" pageNumber="3" reason="3">
<emphasis id="B92FB23C0248FFB9FF244DB1FE867E8B" bold="true" box="[189,324,1697,1723]" pageId="2" pageNumber="3">Etymology</emphasis>
</heading>
</paragraph>
<paragraph id="8BE46E2E0248FFB9FF244DDFFBE77ED9" blockId="2.[189,1061,1743,1769]" box="[189,1061,1743,1769]" pageId="2" pageNumber="3">This species is named after the author’s beloved mother Mariana Sánchez.</paragraph>
</subSubSection>
<subSubSection id="C3413DA50248FFB8FF244C00FD7979E8" lastPageId="3" lastPageNumber="4" pageId="2" pageNumber="3" type="materials_examined">
<paragraph id="8BE46E2E0248FFB9FF244C00FEAE7F1A" blockId="2.[189,364,1808,1834]" box="[189,364,1808,1834]" pageId="2" pageNumber="3">
<heading id="D0ACD9420248FFB9FF244C00FEAE7F1A" bold="true" box="[189,364,1808,1834]" fontSize="11" level="3" pageId="2" pageNumber="3" reason="3">
<emphasis id="B92FB23C0248FFB9FF244C00FEAE7F1A" bold="true" box="[189,364,1808,1834]" pageId="2" pageNumber="3">Type material</emphasis>
</heading>
</paragraph>
<paragraph id="8BE46E2E0248FFB9FF734C2EFE9E7F68" blockId="2.[189,1399,1854,1985]" box="[234,348,1854,1880]" pageId="2" pageNumber="3">
<emphasis id="B92FB23C0248FFB9FF734C2EFE9E7F68" bold="true" box="[234,348,1854,1880]" pageId="2" pageNumber="3">
<typeStatus id="54E0D08C0248FFB9FF734C2EFE9E7F68" box="[234,348,1854,1880]" pageId="2" pageNumber="3" type="holotype">Holotype</typeStatus>
</emphasis>
</paragraph>
<paragraph id="8BE46E2E0248FFB9FF244C71FC157FF0" blockId="2.[189,1399,1854,1985]" pageId="2" pageNumber="3">
<materialsCitation id="3B3364730248FFB9FF244C71FC157FF0" collectedFrom="in rocky intertidal" collectingDate="2017-03-25" collectionCode="MRS, MB, AMRM, NMP, UMAR" country="Mexico" county="southern Mexican Pacific" elevation="5" latitude="15.661944" location="Camaron Beach" longLatPrecision="15" longitude="-96.526" municipality="Zipolite" pageId="2" pageNumber="3" specimenCount="1" stateProvince="Oaxaca" typeStatus="holotype">
<collectingCountry id="F34C2EBE0248FFB9FF244C71FEF37F4B" box="[189,305,1889,1915]" name="Mexico" pageId="2" pageNumber="3">MEXICO</collectingCountry>
• 
<specimenCount id="9D5DA5A70248FFB9FEC84C71FEBC7F4B" box="[337,382,1889,1915]" pageId="2" pageNumber="3">1 ⚥</specimenCount>
(as sagittal sections); 
<collectingCounty id="628516A20248FFB9FD084C71FC047F4B" box="[657,966,1889,1915]" pageId="2" pageNumber="3">southern Mexican Pacific</collectingCounty>
, 
<collectingRegion id="499FA0CC0248FFB9FC4C4C71FBF27F4B" box="[981,1072,1889,1915]" country="Mexico" name="Oaxaca" pageId="2" pageNumber="3">Oaxaca</collectingRegion>
, 
<collectingMunicipality id="6B80F4540248FFB9FBA64C71FB5D7F4B" box="[1087,1183,1889,1915]" pageId="2" pageNumber="3">Zipolite</collectingMunicipality>
, 
<location id="8E8438F50248FFB9FB374C71FAB07F4B" LSID="urn:lsid:plazi:treatment:03F2DF380248FFB3FDFC4FEEFC4D7EAC:8E8438F50248FFB9FB374C71FAB07F4B" box="[1198,1394,1889,1915]" country="Mexico" county="southern Mexican Pacific" latitude="15.661944" longLatPrecision="15" longitude="-96.526" municipality="Zipolite" name="Camaron Beach" pageId="2" pageNumber="3" stateProvince="Oaxaca">Camarón Beach</location>
; 
<geoCoordinate id="EE6F08E90248FFB9FF244C93FE957FAE" box="[189,343,1922,1950]" degrees="15" direction="north" minutes="39" orientation="latitude" pageId="2" pageNumber="3" precision="15" seconds="43" value="15.661944">15°39′43″ N</geoCoordinate>
, 
<geoCoordinate id="EE6F08E90248FFB9FEFF4C93FDD97FAE" box="[358,539,1922,1950]" degrees="96" direction="west" minutes="31" orientation="longitude" pageId="2" pageNumber="3" precision="1" seconds="33.6" value="-96.526">96°31′33.6″ W</geoCoordinate>
; depth 
<quantity id="4CA3C3CB0248FFB9FDE14C93FD007FAE" box="[632,706,1923,1950]" metricMagnitude="-1" metricUnit="m" metricValue="5.0" pageId="2" pageNumber="3" unit="m" value="0.5">
<elevation id="0076891D0248FFB9FDE14C93FD007FAE" box="[632,706,1923,1950]" metricMagnitude="-1" metricUnit="m" metricValue="5.0" pageId="2" pageNumber="3" unit="m" value="0.5">0.5 m</elevation>
</quantity>
; 
<date id="FFE548EE0248FFB9FD4B4C93FCB87FAE" box="[722,890,1923,1950]" pageId="2" pageNumber="3" value="2017-03-25">
<collectingDate id="EFA1B1060248FFB9FD4B4C93FCB87FAE" box="[722,890,1923,1950]" pageId="2" pageNumber="3" value="2017-03-25">25 Mar. 2017</collectingDate>
</date>
; 
<collectionCode id="ED4AF6EB0248FFB9FC124C94FC0E7FAE" box="[907,972,1924,1950]" pageId="2" pageNumber="3">MRS</collectionCode>
, 
<collectionCode id="ED4AF6EB0248FFB9FC424C94FBC97FAE" box="[987,1035,1924,1950]" country="Portugal" name="Universidade de Lisboa, Museu Bocage" pageId="2" pageNumber="3">MB</collectionCode>
, 
<collectionCode id="ED4AF6EB0248FFB9FB834C94FBB87FAE" box="[1050,1146,1924,1950]" pageId="2" pageNumber="3">AMRM</collectionCode>
, 
<collectionCode id="ED4AF6EB0248FFB9FB104C94FB057FAE" box="[1161,1223,1924,1950]" country="Czech Republic" httpUri="http://grbio.org/cool/fx6k-enrh" name="National Museum (Prague)" pageId="2" pageNumber="3">NMP</collectionCode>
leg.; 
<collectedFrom id="38472DD30248FFB9FA8B4C93FEE97FF0" pageId="2" pageNumber="3">in rocky intertidal</collectedFrom>
; reproductive structures in two slides; 
<collectionCode id="ED4AF6EB0248FFB9FD764CB6FC857FF0" box="[751,839,1958,1984]" pageId="2" pageNumber="3">UMAR</collectionCode>
PLAT–046.
</materialsCitation>
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF734A19FEA57913" blockId="3.[189,1398,265,360]" box="[234,359,265,291]" pageId="3" pageNumber="4">
<emphasis id="B92FB23C0249FFB8FF734A19FEA57913" bold="true" box="[234,359,265,291]" pageId="3" pageNumber="4">
<typeStatus id="54E0D08C0249FFB8FF734A19FEA57913" box="[234,359,265,291]" pageId="3" pageNumber="4" type="paratype">Paratypes</typeStatus>
</emphasis>
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF244A3BFDAF7958" blockId="3.[189,1398,265,360]" pageId="3" pageNumber="4">
<materialsCitation id="3B3364730249FFB8FF244A3BFDA87958" collectingDate="2017-03-25" collectionCode="UMAR" country="Mexico" county="southern Mexican Pacific" elevation="5" latitude="15.661944" location="MEXICO" longLatPrecision="15" longitude="-96.526" municipality="Zipolite" pageId="3" pageNumber="4" specimenCount="8" stateProvince="Oaxaca" typeStatus="paratype">
<collectingCountry id="F34C2EBE0249FFB8FF244A3BFEF37975" box="[189,305,299,325]" name="Mexico" pageId="3" pageNumber="4">MEXICO</collectingCountry>
• 
<specimenCount id="9D5DA5A70249FFB8FEC84A3BFE527975" box="[337,400,299,325]" pageId="3" pageNumber="4">8 ⚥⚥</specimenCount>
, 6 (as whole assemblies), 1 (as front section); same data as for holotype; 
<collectionCode id="ED4AF6EB0249FFB8FA874A3BFAB47975" box="[1310,1398,299,325]" pageId="3" pageNumber="4">UMAR</collectionCode>
PLAT–047A–D, 
<collectionCode id="ED4AF6EB0249FFB8FE1C4A5EFE1F7958" box="[389,477,334,360]" pageId="3" pageNumber="4">UMAR</collectionCode>
PLAT–048
</materialsCitation>
.
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF244A9FFE9F7999" blockId="3.[189,349,399,425]" box="[189,349,399,425]" pageId="3" pageNumber="4">
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<emphasis id="B92FB23C0249FFB8FF244A9FFE9F7999" bold="true" box="[189,349,399,425]" pageId="3" pageNumber="4">Type locality</emphasis>
</heading>
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF244AAEFD7979E8" blockId="3.[189,699,446,472]" box="[189,699,446,472]" pageId="3" pageNumber="4">
Camarón Beach, Zipolite, 
<collectingRegion id="499FA0CC0249FFB8FE6A4AAEFD8C79E8" box="[499,590,446,472]" country="Mexico" name="Oaxaca" pageId="3" pageNumber="4">Oaxaca</collectingRegion>
, 
<collectingCountry id="F34C2EBE0249FFB8FDC34AAEFD7579E8" box="[602,695,446,472]" name="Mexico" pageId="3" pageNumber="4">Mexico</collectingCountry>
.
</paragraph>
</subSubSection>
<subSubSection id="C3413DA50249FFB3FF244AEFFD167E39" lastPageId="8" lastPageNumber="9" pageId="3" pageNumber="4" type="description">
<paragraph id="8BE46E2E0249FFB8FF244AEFFD857A29" blockId="3.[189,583,511,537]" box="[189,583,511,537]" pageId="3" pageNumber="4">
<heading id="D0ACD9420249FFB8FF244AEFFD857A29" bold="true" box="[189,583,511,537]" fontSize="11" level="3" pageId="3" pageNumber="4" reason="3">
<emphasis id="B92FB23C0249FFB8FF244AEFFD857A29" bold="true" box="[189,583,511,537]" pageId="3" pageNumber="4">Description of external features</emphasis>
</heading>
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF73493EFDB67A78" blockId="3.[189,1400,558,725]" box="[234,628,558,584]" pageId="3" pageNumber="4">
<emphasis id="B92FB23C0249FFB8FF73493EFE9E7A78" bold="true" box="[234,348,558,584]" pageId="3" pageNumber="4">
<typeStatus id="54E0D08C0249FFB8FF73493EFE9E7A78" box="[234,348,558,584]" pageId="3" pageNumber="4" type="holotype">Holotype</typeStatus>
</emphasis>
(⚥ 
<collectionCode id="ED4AF6EB0249FFB8FE13493EFE207A78" box="[394,482,558,584]" pageId="3" pageNumber="4">UMAR</collectionCode>
PLAT 
<emphasis id="B92FB23C0249FFB8FDA9493EFDFD7A78" bold="true" box="[560,575,558,584]" pageId="3" pageNumber="4">–</emphasis>
046)
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF244941FCF77AE5" blockId="3.[189,1400,558,725]" pageId="3" pageNumber="4">
<smallCapsWord id="8D02F8F20249FFB8FF244941FECB7A59" baselines="612,612" box="[189,265,593,619]" lowerCaseFontSize="8" mainFontSize="11" normCase="title" normString="Color" pageId="3" pageNumber="4">COLOR</smallCapsWord>
. The background color is beige with brown to olive green; the periphery is slightly translucent with light brown and white pigmentation; the reticulate coloration pattern radiates from the central region of the pharynx to the periphery of the body (
<figureCitation id="136072AB0249FFB8FCAB4987FC537A81" box="[818,913,663,689]" captionStart="Fig" captionStartId="4.[189,232,1776,1802]" captionTargetBox="[189,1398,267,1734]" captionTargetId="figure-16@4.[189,1398,267,1734]" captionTargetPageId="4" captionText="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." figureDoi="http://doi.org/10.5281/zenodo.13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="3" pageNumber="4">Fig. 1A</figureCitation>
), the ventral region is white. Specimens stained with Mayer’s carmalum are pink (
<figureCitation id="136072AB0249FFB8FD3E49AAFCEA7AE5" box="[679,808,698,725]" captionStart="Fig" captionStartId="4.[189,232,1776,1802]" captionTargetBox="[189,1398,267,1734]" captionTargetId="figure-16@4.[189,1398,267,1734]" captionTargetPageId="4" captionText="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." figureDoi="http://doi.org/10.5281/zenodo.13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="3" pageNumber="4">Fig. 1C–D</figureCitation>
).
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF2449EDFEB97B09" blockId="3.[189,1399,764,826]" pageId="3" pageNumber="4">
<smallCapsWord id="8D02F8F20249FFB8FF2449EDFF3C7B25" baselines="784,784" box="[189,254,765,791]" lowerCaseFontSize="8" mainFontSize="11" normCase="title" normString="Body" pageId="3" pageNumber="4">BODY</smallCapsWord>
. Elliptical (
<figureCitation id="136072AB0249FFB8FE1149ECFDCC7B26" box="[392,526,764,790]" captionStart="Fig" captionStartId="4.[189,232,1776,1802]" captionTargetBox="[189,1398,267,1734]" captionTargetId="figure-16@4.[189,1398,267,1734]" captionTargetPageId="4" captionText="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." figureDoi="http://doi.org/10.5281/zenodo.13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="3" pageNumber="4">Figs 1A–D</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FD8349ECFD837B26" box="[538,577,764,790]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">3A</figureCitation>
), 
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long (n = 5, μ = 18, SD = 2) and 
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wide (n = 5, μ = 11, SD = 1).
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF244871FB1C7BAE" blockId="3.[188,1399,865,926]" pageId="3" pageNumber="4">
<smallCapsWord id="8D02F8F20249FFB8FF244871FEF57B49" baselines="884,884" box="[189,311,865,891]" lowerCaseFontSize="8" mainFontSize="11" normCase="title" normString="Tentacles" pageId="3" pageNumber="4">TENTACLES</smallCapsWord>
. Rudimentary nipple-shaped nuchal tentacles (
<figureCitation id="136072AB0249FFB8FCC24871FC777B4B" box="[859,949,865,891]" captionStart="Fig" captionStartId="4.[189,232,1776,1802]" captionTargetBox="[189,1398,267,1734]" captionTargetId="figure-16@4.[189,1398,267,1734]" captionTargetPageId="4" captionText="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." figureDoi="http://doi.org/10.5281/zenodo.13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="3" pageNumber="4">Figs 1F</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FC584871FC267B4B" box="[961,996,865,891]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">3B</figureCitation>
) are located in the anterior margin of the body, the distance between tentacles being 
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(n = 3, μ = 0.7, SD = 0.16).
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF2448D6FD717C79" blockId="3.[188,1399,965,1097]" pageId="3" pageNumber="4">
<smallCapsWord id="8D02F8F20249FFB8FF2448D6FF347BEE" baselines="985,985" box="[189,246,966,992]" lowerCaseFontSize="8" mainFontSize="11" normCase="title" normString="Eyes" pageId="3" pageNumber="4">EYES</smallCapsWord>
. Marginal eyes absent; with 17–25 (n = 3, μ = 20, SD = 3) tentacular eyes, diagonally distributed, anterior and posterior to the base of the nuchal tentacles (
<figureCitation id="136072AB0249FFB8FCC348F8FC1B7C33" box="[858,985,1000,1027]" captionStart="Fig" captionStartId="4.[189,232,1776,1802]" captionTargetBox="[189,1398,267,1734]" captionTargetId="figure-16@4.[189,1398,267,1734]" captionTargetPageId="4" captionText="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." figureDoi="http://doi.org/10.5281/zenodo.13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="3" pageNumber="4">Figs 1F, H</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FC7D48F9FBED7C33" box="[996,1071,1001,1027]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">3A–B</figureCitation>
); with 17–36 (n = 3, μ = 22, SD = 7) cerebral eyes distributed in an elongate fashion beginning sparsely at the posterior margin of the brain and widening forward (
<figureCitation id="136072AB0249FFB8FD8B4F3FFDB67C79" box="[530,628,1071,1097]" captionStart="Fig" captionStartId="4.[189,232,1776,1802]" captionTargetBox="[189,1398,267,1734]" captionTargetId="figure-16@4.[189,1398,267,1734]" captionTargetPageId="4" captionText="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." figureDoi="http://doi.org/10.5281/zenodo.13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="3" pageNumber="4">Figs 1H</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FD194F3FFD677C79" box="[640,677,1071,1097]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">3B</figureCitation>
).
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF244F61FAD47C9E" blockId="3.[188,1398,1136,1198]" pageId="3" pageNumber="4">
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. Bilobed, 
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(n = 3, μ = 0.4, SD = 0.28) long and 
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(n = 3, μ = 0.5, SD = 0.31) wide; globuli cell masses oval-shaped, located in the anterior region of the brain (
<figureCitation id="136072AB0249FFB8FBE04F83FB147C9E" box="[1145,1238,1171,1198]" captionStart="Fig" captionStartId="4.[189,232,1776,1802]" captionTargetBox="[189,1398,267,1734]" captionTargetId="figure-16@4.[189,1398,267,1734]" captionTargetPageId="4" captionText="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." figureDoi="http://doi.org/10.5281/zenodo.13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="3" pageNumber="4">Figs 1E</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FB7A4F84FACA7C9E" box="[1251,1288,1172,1198]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">3B</figureCitation>
).
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF244FC5FE017D68" blockId="3.[188,1399,1237,1368]" pageId="3" pageNumber="4">
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. The pharynx is relatively small and sparsely folded; located slightly posterior to the first third of the body at 
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(n = 3, μ = 0.5, SD = 0.31) from the anterior margin of the body (
<figureCitation id="136072AB0249FFB8FA894FE8FAB37D22" box="[1296,1393,1272,1298]" captionStart="Fig" captionStartId="4.[189,232,1776,1802]" captionTargetBox="[189,1398,267,1734]" captionTargetId="figure-16@4.[189,1398,267,1734]" captionTargetPageId="4" captionText="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." figureDoi="http://doi.org/10.5281/zenodo.13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="3" pageNumber="4">Figs 1G</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FF254E0BFF217D05" box="[188,227,1307,1333]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">3A</figureCitation>
), 
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(n = 3, μ = 1.2, SD = 0.19) from the male gonopore; the mouth is located in the central region of the pharynx.
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF244E90FDC37E33" blockId="3.[188,1399,1408,1540]" pageId="3" pageNumber="4">
<smallCapsWord id="8D02F8F20249FFB8FF244E90FEFD7DA9" baselines="1427,1428" box="[189,319,1408,1434]" lowerCaseFontSize="8" mainFontSize="11" normCase="title" normString="Gonopores" pageId="3" pageNumber="4">GONOPORES</smallCapsWord>
. Separated, located in the last third of the body (
<figureCitation id="136072AB0249FFB8FCF44E90FC087DAA" box="[877,970,1408,1434]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">Fig. 3D</figureCitation>
). Male gonopore at 
<quantity id="4CA3C3CB0249FFB8FB294E90FAE47DAB" box="[1200,1318,1408,1435]" metricMagnitude="-3" metricUnit="m" metricValue="6.15" metricValueMax="6.3" metricValueMin="6.0" pageId="3" pageNumber="4" unit="mm" value="6.15" valueMax="6.3" valueMin="6.0">6–6.3 mm</quantity>
(n = 3, μ = 6.2, SD = 0.21) from the anterior margin and 
<quantity id="4CA3C3CB0249FFB8FD6A4EB3FCAB7D8E" box="[755,873,1443,1470]" metricMagnitude="-3" metricUnit="m" metricValue="1.15" metricValueMax="1.3" metricValueMin="1.0" pageId="3" pageNumber="4" unit="mm" value="1.15" valueMax="1.3" valueMin="1.0">1–1.3 mm</quantity>
(n = 3, μ = 1.2, SD = 0.19) from the pharynx. The female gonopore (
<figureCitation id="136072AB0249FFB8FE5D4ED6FDFC7DD1" box="[452,574,1478,1505]" captionStart="Fig" captionStartId="5.[189,232,1814,1840]" captionTargetBox="[189,1398,269,1755]" captionTargetId="figure-11@5.[189,1398,269,1755]" captionTargetPageId="5" captionText="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="3" pageNumber="4">Fig. 2F–G</figureCitation>
) is positioned posterior to the male gonopore at 
<quantity id="4CA3C3CB0249FFB8FBF54ED6FB3B7DD1" box="[1132,1273,1478,1505]" metricMagnitude="-4" metricUnit="m" metricValue="6.5" metricValueMax="8.0" metricValueMin="5.0" pageId="3" pageNumber="4" unit="mm" value="0.65" valueMax="0.8" valueMin="0.5">0.5–0.8 mm</quantity>
(n = 3, μ = 0.6, SD = 0.02) of distance.
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF244D3BFD867E75" blockId="3.[189,580,1579,1605]" box="[189,580,1579,1605]" pageId="3" pageNumber="4">
<heading id="D0ACD9420249FFB8FF244D3BFD867E75" bold="true" box="[189,580,1579,1605]" fontSize="11" level="3" pageId="3" pageNumber="4" reason="3">
<emphasis id="B92FB23C0249FFB8FF244D3BFD867E75" bold="true" box="[189,580,1579,1605]" pageId="3" pageNumber="4">Description of internal features</emphasis>
</heading>
</paragraph>
<paragraph id="8BE46E2E0249FFB8FF244D4AFB527F5A" blockId="3.[187,1400,1625,1898]" pageId="3" pageNumber="4">
<smallCapsWord id="8D02F8F20249FFB8FF244D4AFF3D7E42" baselines="1645,1645" box="[189,255,1626,1652]" lowerCaseFontSize="8" mainFontSize="11" normCase="title" normString="Male" pageId="3" pageNumber="4">MALE</smallCapsWord>
<smallCapsWord id="8D02F8F20249FFB8FE9C4D4FFE617E42" baselines="1645" box="[261,419,1631,1650]" lowerCaseFontSize="8" mainFontSize="11" normCase="lower" normString="reproductive" pageId="3" pageNumber="4">REPRODUCTIVE</smallCapsWord>
<smallCapsWord id="8D02F8F20249FFB8FE314D4FFE387E42" baselines="1645" box="[424,506,1631,1650]" lowerCaseFontSize="8" mainFontSize="11" normCase="lower" normString="system" pageId="3" pageNumber="4">SYSTEM</smallCapsWord>
. The male gonopore is located in the last third of the body; the rest of the male reproductive system is oriented toward the anterior part of the male gonopore; it has spermiducal ducts that are oriented toward the anterior region of the body and extend to the last third of the pharynx and subsequently descend toward the posterior region of the body. A prominent oval-free prostatic vesicle (
<figureCitation id="136072AB0249FFB8FF5E4DF6FED97F30" box="[199,283,1766,1792]" captionStart="Fig" captionStartId="4.[189,232,1776,1802]" captionTargetBox="[189,1398,267,1734]" captionTargetId="figure-16@4.[189,1398,267,1734]" captionTargetPageId="4" captionText="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." figureDoi="http://doi.org/10.5281/zenodo.13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="3" pageNumber="4">Figs 1I</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FEB14DF6FE8C7F30" box="[296,334,1766,1792]" captionStart="Fig" captionStartId="5.[189,232,1814,1840]" captionTargetBox="[189,1398,269,1755]" captionTargetId="figure-11@5.[189,1398,269,1755]" captionTargetPageId="5" captionText="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="3" pageNumber="4">2D</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FEC04DF6FE617F30" box="[345,419,1766,1792]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">3C–D</figureCitation>
), with internal ridged glandular lining (
<figureCitation id="136072AB0249FFB8FCF24DF6FC0E7F30" box="[875,972,1766,1792]" captionStart="Fig" captionStartId="5.[189,232,1814,1840]" captionTargetBox="[189,1398,269,1755]" captionTargetId="figure-11@5.[189,1398,269,1755]" captionTargetPageId="5" captionText="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="3" pageNumber="4">Figs 2D</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FC414DF6FC3E7F30" box="[984,1020,1766,1792]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">3C</figureCitation>
), is located dorsal to the seminal vesicle (
<figureCitation id="136072AB0249FFB8FE864C19FE687F14" box="[287,426,1801,1828]" captionStart="Fig" captionStartId="5.[189,232,1814,1840]" captionTargetBox="[189,1398,269,1755]" captionTargetId="figure-11@5.[189,1398,269,1755]" captionTargetPageId="5" captionText="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="3" pageNumber="4">Figs 2A, D</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FE214C1AFE1C7F14" box="[440,478,1802,1828]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">3C</figureCitation>
). Oval seminal vesicle (
<figureCitation id="136072AB0249FFB8FD664C19FCA17F14" box="[767,867,1801,1828]" captionStart="Fig" captionStartId="5.[189,232,1814,1840]" captionTargetBox="[189,1398,269,1755]" captionTargetId="figure-11@5.[189,1398,269,1755]" captionTargetPageId="5" captionText="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="3" pageNumber="4">Figs 2D</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FCEB4C1AFC7E7F14" box="[882,956,1802,1828]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">3C–D</figureCitation>
). Penis papilla is short (
<figureCitation id="136072AB0249FFB8FB464C19FAF47F14" box="[1247,1334,1801,1828]" captionStart="Fig" captionStartId="4.[189,232,1776,1802]" captionTargetBox="[189,1398,267,1734]" captionTargetId="figure-16@4.[189,1398,267,1734]" captionTargetPageId="4" captionText="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." figureDoi="http://doi.org/10.5281/zenodo.13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="3" pageNumber="4">Figs 1I</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FADF4C1AFAAA7F14" box="[1350,1384,1802,1828]" captionStart="Fig" captionStartId="5.[189,232,1814,1840]" captionTargetBox="[189,1398,269,1755]" captionTargetId="figure-11@5.[189,1398,269,1755]" captionTargetPageId="5" captionText="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="3" pageNumber="4">2F</figureCitation>
), 94 µm long, armed with a long filiform sclerosed stylet (
<figureCitation id="136072AB0249FFB8FCCB4C3DFC347F77" box="[850,1014,1837,1863]" captionStart="Fig" captionStartId="5.[189,232,1814,1840]" captionTargetBox="[189,1398,269,1755]" captionTargetId="figure-11@5.[189,1398,269,1755]" captionTargetPageId="5" captionText="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="3" pageNumber="4">Figs 2B, E, G</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FB984C3DFB897F77" box="[1025,1099,1837,1863]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">3C–D</figureCitation>
), measuring 200–400 µm (n = 3, μ = 300, SD = 141.42) in length. The male atrium is widened (
<figureCitation id="136072AB0249FFB8FC764C40FB927F5A" box="[1007,1104,1872,1898]" captionStart="Fig" captionStartId="5.[189,232,1814,1840]" captionTargetBox="[189,1398,269,1755]" captionTargetId="figure-11@5.[189,1398,269,1755]" captionTargetPageId="5" captionText="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="3" pageNumber="4">Figs 2G</figureCitation>
, 
<figureCitation id="136072AB0249FFB8FBC44C40FB407F5A" box="[1117,1154,1872,1898]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">3C</figureCitation>
).
</paragraph>
<paragraph id="8BE46E2E0249FFB3FF244C82FCEB79BD" blockId="3.[189,1400,1937,1999]" lastBlockId="8.[188,1399,265,397]" lastPageId="8" lastPageNumber="9" pageId="3" pageNumber="4">
<smallCapsWord id="8D02F8F20249FFB8FF244C82FED67F9A" baselines="1957,1957" box="[189,276,1938,1964]" lowerCaseFontSize="8" mainFontSize="11" normCase="title" normString="Female" pageId="3" pageNumber="4">FEMALE</smallCapsWord>
<smallCapsWord id="8D02F8F20249FFB8FE874C87FE7E7F9A" baselines="1957" box="[286,444,1943,1962]" lowerCaseFontSize="8" mainFontSize="11" normCase="lower" normString="reproductive" pageId="3" pageNumber="4">REPRODUCTIVE</smallCapsWord>
<smallCapsWord id="8D02F8F20249FFB8FE5C4C87FDD57F9A" baselines="1957" box="[453,535,1943,1962]" lowerCaseFontSize="8" mainFontSize="11" normCase="lower" normString="system" pageId="3" pageNumber="4">SYSTEM</smallCapsWord>
. The oviduct, oriented toward the anterior region of the body, surrounds the pharynx (
<figureCitation id="136072AB0249FFB8FEF94CA5FE7D7FFF" box="[352,447,1973,1999]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="3" pageNumber="4">Fig. 3A</figureCitation>
) and connects directly to the proximal end region of the vagina; the vagina is sparsely developed (
<figureCitation id="136072AB0242FFB3FE374A19FDCD7913" box="[430,527,265,291]" captionStart="Fig" captionStartId="5.[189,232,1814,1840]" captionTargetBox="[189,1398,269,1755]" captionTargetId="figure-11@5.[189,1398,269,1755]" captionTargetPageId="5" captionText="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="8" pageNumber="9">Figs 2C</figureCitation>
, 
<figureCitation id="136072AB0242FFB3FD844A19FD817913" box="[541,579,265,291]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="8" pageNumber="9">3D</figureCitation>
), oriented toward the posterior region of the body, cement glands are abundant. Lang’s vesicle tripartite is Y-shaped (
<figureCitation id="136072AB0242FFB3FD7F4A3CFCF87976" box="[742,826,300,326]" captionStart="Fig" captionStartId="4.[189,232,1776,1802]" captionTargetBox="[189,1398,267,1734]" captionTargetId="figure-16@4.[189,1398,267,1734]" captionTargetPageId="4" captionText="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." figureDoi="http://doi.org/10.5281/zenodo.13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="8" pageNumber="9">Figs 1I</figureCitation>
, 
<figureCitation id="136072AB0242FFB3FCDF4A3CFCAF7976" box="[838,877,300,326]" captionStart="Fig" captionStartId="5.[189,232,1814,1840]" captionTargetBox="[189,1398,269,1755]" captionTargetId="figure-11@5.[189,1398,269,1755]" captionTargetPageId="5" captionText="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="8" pageNumber="9">2A</figureCitation>
, 
<figureCitation id="136072AB0242FFB3FCE14A3CFC5C7976" box="[888,926,300,326]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="8" pageNumber="9">3C</figureCitation>
); the proximal ends are oriented towards the anterior region of the body and reach the last third of the oviduct, while the distal end is oriented towards the posterior region of the female gonopore.
</paragraph>
<caption id="DF243EA6024EFFBFFF244DE0FE3F7FEF" ID-DOI="http://doi.org/10.5281/zenodo.13947262" ID-Zenodo-Dep="13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="4" pageNumber="5" startId="4.[189,232,1776,1802]" targetBox="[189,1398,267,1734]" targetPageId="4">
<paragraph id="8BE46E2E024EFFBFFF244DE0FE3F7FEF" blockId="4.[189,1399,1776,2015]" pageId="4" pageNumber="5">
<emphasis id="B92FB23C024EFFBFFF244DE0FED07F3B" bold="true" box="[189,274,1776,1803]" pageId="4" pageNumber="5">Fig. 1.</emphasis>
<taxonomicName id="4C5B15AD024EFFBFFEB84DE1FDEC7F3B" authorityName="Ramos-Sánchez" authorityYear="2024" box="[289,558,1777,1803]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="4" pageNumber="5" phylum="Platyhelminthes" rank="species" species="marianae" status="sp. nov.">
<emphasis id="B92FB23C024EFFBFFEB84DE1FDEC7F3B" box="[289,558,1777,1803]" italics="true" pageId="4" pageNumber="5">Callioplana marianae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21C0F47024EFFBFFDA44DE1FD607F3B" box="[573,674,1777,1803]" pageId="4" pageNumber="5" rank="species">sp. nov.</taxonomicNameLabel>
, paratype, ⚥ (UMAR PLAT–047). 
<emphasis id="B92FB23C024EFFBFFBFF4DE0FBB97F3A" bold="true" box="[1126,1147,1776,1802]" pageId="4" pageNumber="5">A</emphasis>
. Specimen in vivo. 
<emphasis id="B92FB23C024EFFBFFF244C04FF137F1E" bold="true" box="[189,209,1812,1838]" pageId="4" pageNumber="5">B</emphasis>
. Specimen preserved in ethanol. 
<emphasis id="B92FB23C024EFFBFFDE34C04FD717F1E" bold="true" box="[634,691,1812,1839]" pageId="4" pageNumber="5">C–D</emphasis>
. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. 
<emphasis id="B92FB23C024EFFBFFE034C27FE047F61" bold="true" box="[410,454,1847,1874]" pageId="4" pageNumber="5">E–I</emphasis>
. Details of C, in whole mount. 
<emphasis id="B92FB23C024EFFBFFCDE4C27FCB87F61" bold="true" box="[839,890,1847,1874]" pageId="4" pageNumber="5">E–F</emphasis>
, 
<emphasis id="B92FB23C024EFFBFFC134C27FC637F61" bold="true" box="[906,929,1847,1873]" pageId="4" pageNumber="5">H</emphasis>
. Anterior region of the body. 
<emphasis id="B92FB23C024EFFBFFA924C27FADF7F61" bold="true" box="[1291,1309,1847,1873]" pageId="4" pageNumber="5">E</emphasis>
. Brain. 
<emphasis id="B92FB23C024EFFBFFF274C4BFF0D7F45" bold="true" box="[190,207,1883,1909]" pageId="4" pageNumber="5">F</emphasis>
. Nuchal tentacle. 
<emphasis id="B92FB23C024EFFBFFE284C4AFE0A7F44" bold="true" box="[433,456,1882,1908]" pageId="4" pageNumber="5">G</emphasis>
. Pharynx. 
<emphasis id="B92FB23C024EFFBFFDC94C4BFDA57F45" bold="true" box="[592,615,1883,1909]" pageId="4" pageNumber="5">H</emphasis>
. Tentacular and cerebral eyes. 
<emphasis id="B92FB23C024EFFBFFC704C4BFC367F45" bold="true" box="[1001,1012,1883,1909]" pageId="4" pageNumber="5">I</emphasis>
. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus.
</paragraph>
</caption>
<caption id="DF243EA6024FFFBEFF244C06FED47FD0" ID-DOI="http://doi.org/10.5281/zenodo.13947264" ID-Zenodo-Dep="13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="5" pageNumber="6" startId="5.[189,232,1814,1840]" targetBox="[189,1398,269,1755]" targetPageId="5">
<paragraph id="8BE46E2E024FFFBEFF244C06FED47FD0" blockId="5.[188,1399,1814,2016]" pageId="5" pageNumber="6">
<emphasis id="B92FB23C024FFFBEFF244C06FEC87F00" bold="true" box="[189,266,1814,1840]" pageId="5" pageNumber="6">Fig. 2.</emphasis>
<taxonomicName id="4C5B15AD024FFFBEFE894C06FDD77F00" authorityName="Ramos-Sánchez" authorityYear="2024" box="[272,533,1814,1840]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="5" pageNumber="6" phylum="Platyhelminthes" rank="species" species="marianae" status="sp. nov.">
<emphasis id="B92FB23C024FFFBEFE894C06FDD77F00" box="[272,533,1814,1840]" italics="true" pageId="5" pageNumber="6">Callioplana marianae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21C0F47024FFFBEFD854C07FDB47F01" box="[540,630,1815,1841]" pageId="5" pageNumber="6" rank="species">sp. nov.</taxonomicNameLabel>
<emphasis id="B92FB23C024FFFBEFDE54C06FD537F00" bold="true" box="[636,657,1814,1840]" pageId="5" pageNumber="6">A</emphasis>
, 
<emphasis id="B92FB23C024FFFBEFD064C07FD187F00" bold="true" box="[671,730,1814,1841]" pageId="5" pageNumber="6">D–G</emphasis>
. Paratype, ⚥ (UMAR-PLAT–048). 
<emphasis id="B92FB23C024FFFBEFBE54C07FB767F00" bold="true" box="[1148,1204,1814,1841]" pageId="5" pageNumber="6">B–C</emphasis>
, 
<emphasis id="B92FB23C024FFFBEFB5B4C07FB1B7F01" bold="true" box="[1218,1241,1815,1841]" pageId="5" pageNumber="6">H</emphasis>
. Holotype, ⚥ (UMAR-PLAT–046). 
<emphasis id="B92FB23C024FFFBEFE5C4C29FE187F63" bold="true" box="[453,474,1849,1875]" pageId="5" pageNumber="6">A</emphasis>
, 
<emphasis id="B92FB23C024FFFBEFE734C2AFDE77F63" bold="true" box="[490,549,1849,1876]" pageId="5" pageNumber="6">D–G</emphasis>
. Male and female reproductive system, in frontal histological sections. 
<emphasis id="B92FB23C024FFFBEFF274C4DFF377F47" bold="true" box="[190,245,1885,1912]" pageId="5" pageNumber="6">B–C</emphasis>
, 
<emphasis id="B92FB23C024FFFBEFE9A4C4DFED87F47" bold="true" box="[259,282,1885,1911]" pageId="5" pageNumber="6">H</emphasis>
. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina.
</paragraph>
</caption>
<caption id="DF243EA6024CFFBDFF244DA4FE647FD8" ID-DOI="http://doi.org/10.5281/zenodo.13947266" ID-Zenodo-Dep="13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="6" pageNumber="7" startId="6.[189,232,1716,1742]" targetBox="[257,1335,294,1636]" targetPageId="6">
<paragraph id="8BE46E2E024CFFBDFF244DA4FE647FD8" blockId="6.[186,1400,1716,2025]" pageId="6" pageNumber="7">
<emphasis id="B92FB23C024CFFBDFF244DA4FECE7EFF" bold="true" box="[189,268,1716,1743]" pageId="6" pageNumber="7">Fig. 3.</emphasis>
<taxonomicName id="4C5B15AD024CFFBDFE8D4DA5FDDA7EFF" authorityName="Ramos-Sánchez" authorityYear="2024" box="[276,536,1717,1743]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="6" pageNumber="7" phylum="Platyhelminthes" rank="species" species="marianae" status="sp. nov.">
<emphasis id="B92FB23C024CFFBDFE8D4DA5FDDA7EFF" box="[276,536,1717,1743]" italics="true" pageId="6" pageNumber="7">Callioplana marianae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21C0F47024CFFBDFDB94DA5FDB97EFF" box="[544,635,1717,1743]" pageId="6" pageNumber="7" rank="species">sp. nov.</taxonomicNameLabel>
<emphasis id="B92FB23C024CFFBDFD194DA4FD7A7EFF" bold="true" box="[640,696,1716,1743]" pageId="6" pageNumber="7">A–B</emphasis>
. Paratype, ⚥ (UMAR PLAT–047). 
<emphasis id="B92FB23C024CFFBDFBC34DA4FBAD7EFE" bold="true" box="[1114,1135,1716,1742]" pageId="6" pageNumber="7">C</emphasis>
. Holotype, ⚥ (UMAR PLAT–046). 
<emphasis id="B92FB23C024CFFBDFECA4DC8FEAA7EC2" bold="true" box="[339,360,1752,1778]" pageId="6" pageNumber="7">D</emphasis>
. Paratype,⚥ (UMAR PLAT–048). 
<emphasis id="B92FB23C024CFFBDFD614DC8FCCF7EC2" bold="true" box="[760,781,1752,1778]" pageId="6" pageNumber="7">A</emphasis>
. Diagrammatic representation of complete specimen. 
<emphasis id="B92FB23C024CFFBDFF234DEBFF0C7F25" bold="true" box="[186,206,1787,1813]" pageId="6" pageNumber="7">B</emphasis>
. Diagrammatic representation of nuchal tentacle and eyes. 
<emphasis id="B92FB23C024CFFBDFC3D4DEBFC7B7F25" bold="true" box="[932,953,1787,1813]" pageId="6" pageNumber="7">C</emphasis>
. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. 
<emphasis id="B92FB23C024CFFBDFC644C0EFBD07F08" bold="true" box="[1021,1042,1822,1848]" pageId="6" pageNumber="7">D</emphasis>
. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina.
</paragraph>
</caption>
<caption id="DF243EA6024DFFBCFF244A19FE727977" pageId="7" pageNumber="8" startId="7.[189,259,265,291]">
<paragraph id="8BE46E2E024DFFBCFF244A19FE727977" blockId="7.[189,1398,265,327]" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFF244A19FEE37913" bold="true" box="[189,289,265,291]" pageId="7" pageNumber="8">Table 1.</emphasis>
Comparison of the morphological characters of 
<taxonomicName id="4C5B15AD024DFFBCFCC44A19FBA37913" authorityName="Ramos-Sánchez" authorityYear="2024" box="[861,1121,265,291]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="7" pageNumber="8" phylum="Platyhelminthes" rank="species" species="marianae" status="sp. nov.">
<emphasis id="B92FB23C024DFFBCFCC44A19FBA37913" box="[861,1121,265,291]" italics="true" pageId="7" pageNumber="8">Callioplana marianae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21C0F47024DFFBCFBF04A1AFB017914" box="[1129,1219,266,292]" pageId="7" pageNumber="8" rank="species">sp. nov.</taxonomicNameLabel>
with other two species of the genus.
</paragraph>
</caption>
<paragraph id="8BE46E2E024DFFBCFE8E4A90FAF67FB7" pageId="7" pageNumber="8">
<table id="F95B9C8E024D0044FF514A6FFAAE7FB7" box="[200,1388,383,1927]" gridcols="4" gridrows="14" pageId="7" pageNumber="8">
<tr id="356B6C6C024D0044FF514A6FFAAE79A8" box="[200,1388,383,408]" gridrow="0" pageId="7" pageNumber="8">
<th id="76BA0510024D0044FF514A6FFE5E79A8" box="[200,412,383,408]" gridcol="0" gridrow="0" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFE8E4A90FE8C79A8" bold="true" box="[279,334,384,408]" pageId="7" pageNumber="8">Taxa</emphasis>
</th>
<th id="76BA0510024D0044FE2D4A6FFD2979A8" box="[436,747,383,408]" gridcol="1" gridrow="0" pageId="7" pageNumber="8">
<taxonomicName id="4C5B15AD024DFFBCFE4B4A6FFD0E79A8" authorityName="Stimpson" authorityYear="1857" box="[466,716,383,408]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="7" pageNumber="8" phylum="Platyhelminthes" rank="species" species="marginata">
<emphasis id="B92FB23C024DFFBCFE4B4A6FFD0E79A8" bold="true" box="[466,716,383,408]" italics="true" pageId="7" pageNumber="8">Callioplana marginata</emphasis>
</taxonomicName>
</th>
<th id="76BA0510024D0044FC9B4A6FFBCC79A8" box="[770,1038,383,408]" gridcol="2" gridrow="0" pageId="7" pageNumber="8">
<taxonomicName id="4C5B15AD024DFFBCFC8E4A6FFC3B79A7" authorityName="Marcus" authorityYear="1954" box="[791,1017,383,407]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="7" pageNumber="8" phylum="Platyhelminthes" rank="species" species="evelinae">
<emphasis id="B92FB23C024DFFBCFC8E4A6FFC3B79A7" bold="true" box="[791,1017,383,407]" italics="true" pageId="7" pageNumber="8">Callioplana evelinae</emphasis>
</taxonomicName>
</th>
<th id="76BA0510024D0044FBBB4A6FFAAE79A8" box="[1058,1388,383,408]" gridcol="3" gridrow="0" pageId="7" pageNumber="8">
<taxonomicName id="4C5B15AD024DFFBCFBBB4A90FAD079A8" authorityName="Ramos-Sánchez" authorityYear="2024" box="[1058,1298,384,408]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="7" pageNumber="8" phylum="Platyhelminthes" rank="species" species="marianae" status="sp. nov.">
<emphasis id="B92FB23C024DFFBCFBBB4A90FAD079A8" bold="true" box="[1058,1298,384,408]" italics="true" pageId="7" pageNumber="8">Callioplana marianae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21C0F47024DFFBCFA804A91FAAE79A8" box="[1305,1388,385,408]" pageId="7" pageNumber="8" rank="species">sp. nov.</taxonomicNameLabel>
</th>
</tr>
<tr id="356B6C6C024D0044FF514AA2FAAE7A1A" box="[200,1388,434,554]" gridrow="1" pageId="7" pageNumber="8">
<th id="76BA0510024D0044FF514AA2FE5E7A1A" box="[200,412,434,554]" gridcol="0" gridrow="1" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFF6D4AF2FEB279CA" bold="true" box="[244,368,482,506]" pageId="7" pageNumber="8">References</emphasis>
</th>
<td id="76BA0510024D0044FE2D4AA2FD297A1A" box="[436,747,434,554]" gridcol="1" gridrow="1" pageId="7" pageNumber="8">
<bibRefCitation id="EFCA13DF024DFFBCFE434AA2FD5A79FB" author="Stimpson W." box="[474,664,434,459]" pageId="7" pageNumber="8" pagination="19 - 31" refId="ref32821" refString="Stimpson W. 1857. Prodromus descriptionis animalium evertebratorum, quae in Expeditione ad Oceanum Pacificum Septentrionalem a Republica Federata missa, Johanne Rodgers Duce, observavit et descripsit. Pars I, Turbellaria Dendrocoela. Proceedings of the Academy of Natural Sciences of Philadelphia 9: 19 - 31. https: // doi. org / 10.5962 / bhl. title. 51447" type="journal article" year="1857">Stimpson 1857: 4</bibRefCitation>
, 11; 
<bibRefCitation id="EFCA13DF024DFFBCFE4C4AC2FDF07A3B" author="Yeri M. &amp; Kaburaki T." pageId="7" pageNumber="8" pagination="1 - 54" refId="ref33394" refString="Yeri M. &amp; Kaburaki T. 1918. Description of some Japanese polyclad Turbellaria. Journal of the College of Science, Tokio Imperical University 39 (9): 1 - 54. Available from https: // biostor. org / reference / 144400 [accessed 2 Aug. 2023]" type="journal article" year="1918">Yeri &amp; Kaburaki 1918: 31–34</bibRefCitation>
, pl. 1 fig. 1, text figs 35–37
</td>
<td id="76BA0510024D0044FC9B4AA2FBCC7A1A" box="[770,1038,434,554]" gridcol="2" gridrow="1" pageId="7" pageNumber="8">
<bibRefCitation id="EFCA13DF024DFFBCFC904AC3FBC179DA" author="Marcus E." box="[777,1027,466,490]" pageId="7" pageNumber="8" pagination="419 - 489" refId="ref30783" refString="Marcus E. 1954. Turbellaria Brasileiros (11). Papeis avulsos do Departamento de Zoologia 11 (24): 419 - 489. Available from https: // doi. org / 10.11606 / 0031 - 1049.1954.11 p 419 - 489 [accessed 2 Aug. 2023]." type="journal article" year="1954">Marcus 1954: 476–479</bibRefCitation>
, 485, figs 71–76
</td>
<td id="76BA0510024D0044FBBB4AA2FAAE7A1A" box="[1058,1388,434,554]" gridcol="3" gridrow="1" pageId="7" pageNumber="8">This study</td>
</tr>
<tr id="356B6C6C024D0044FF51492AFAAE7A42" box="[200,1388,570,626]" gridrow="2" pageId="7" pageNumber="8">
<th id="76BA0510024D0044FF51492AFE5E7A42" box="[200,412,570,626]" gridcol="0" gridrow="2" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFF73495AFEB97A52" bold="true" box="[234,379,586,610]" pageId="7" pageNumber="8">Type locality</emphasis>
</th>
<td id="76BA0510024D0044FE2D492AFD297A42" box="[436,747,570,626]" gridcol="1" gridrow="2" pageId="7" pageNumber="8">? Oshima Island, Japan</td>
<td id="76BA0510024D0044FC9B492AFBCC7A42" box="[770,1038,570,626]" gridcol="2" gridrow="2" pageId="7" pageNumber="8">San Sebastian Island, Brazil</td>
<td id="76BA0510024D0044FBBB492AFAAE7A42" box="[1058,1388,570,626]" gridcol="3" gridrow="2" pageId="7" pageNumber="8">Camarón Beach, Oaxaca, Mexico</td>
</tr>
<tr id="356B6C6C024D0044FF514992FAAE7AEA" box="[200,1388,642,730]" gridrow="3" pageId="7" pageNumber="8">
<th id="76BA0510024D0044FF514992FE5E7AEA" box="[200,412,642,730]" gridcol="0" gridrow="3" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFF7449B2FEBA7A8A" bold="true" box="[237,376,674,698]" pageId="7" pageNumber="8">Distribution</emphasis>
</th>
<td id="76BA0510024D0044FE2D4992FD297AEA" box="[436,747,642,730]" gridcol="1" gridrow="3" pageId="7" pageNumber="8">Referred by Stimpson as Ousima Island, Sunosaki and Osaka, Japan</td>
<td id="76BA0510024D0044FC9B4992FBCC7AEA" box="[770,1038,642,730]" gridcol="2" gridrow="3" pageId="7" pageNumber="8">San Sebastian Island, Brazil</td>
<td id="76BA0510024D0044FBBB4992FAAE7AEA" box="[1058,1388,642,730]" gridcol="3" gridrow="3" pageId="7" pageNumber="8">Only known from Oaxaca, Mexico</td>
</tr>
<tr id="356B6C6C024D0044FF5149FAFAAE7B72" box="[200,1388,746,834]" gridrow="4" pageId="7" pageNumber="8" rowspan-0="1" rowspan-1="1" rowspan-3="1">
<td id="76BA0510024D0044FC9B49FAFBCC7B72" box="[770,1038,746,834]" gridcol="2" gridrow="4" pageId="7" pageNumber="8">Intertidal, breakwater zone; between woods, coarse sand and rocks;</td>
</tr>
<tr id="356B6C6C024D0044FF51485AFAAE7BD2" box="[200,1388,842,994]" gridrow="5" pageId="7" pageNumber="8">
<th id="76BA0510024D0044FF51485AFE5E7BD2" box="[200,412,842,994]" gridcol="0" gridrow="5" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFE9E4849FE9C7B41" bold="true" box="[263,350,857,881]" pageId="7" pageNumber="8">Habitat</emphasis>
</th>
<td id="76BA0510024D0044FE2D485AFD297BD2" box="[436,747,842,994]" gridcol="1" gridrow="5" pageId="7" pageNumber="8">Under rocks; depth 1.25 m</td>
<td id="76BA0510024D0044FC9B485AFBCC7BD2" box="[770,1038,842,994]" gridcol="2" gridrow="5" pageId="7" pageNumber="8">
sharing habitat with algae of the genus 
<taxonomicName id="4C5B15AD024DFFBCFC85489AFCAB7B92" box="[796,873,906,930]" class="Phaeophyceae" family="Dictyotaceae" genus="Padina" kingdom="Chromista" order="Dictyotales" pageId="7" pageNumber="8" phylum="Ochrophyta" rank="genus">
<emphasis id="B92FB23C024DFFBCFC85489AFCAB7B92" box="[796,873,906,930]" italics="true" pageId="7" pageNumber="8">Padina</emphasis>
</taxonomicName>
, polychaetes as 
<taxonomicName id="4C5B15AD024DFFBCFCA648BAFC027BF2" authorityName="Schneider" authorityYear="1868" box="[831,960,938,962]" class="Polychaeta" family="Polygordiidae" genus="Polygordius" kingdom="Animalia" pageId="7" pageNumber="8" phylum="Annelida" rank="genus">
<emphasis id="B92FB23C024DFFBCFCA648BAFC027BF2" box="[831,960,938,962]" italics="true" pageId="7" pageNumber="8">Polygordius</emphasis>
</taxonomicName>
and cephalochordates
</td>
<td id="76BA0510024D0044FBBB485AFAAE7BD2" box="[1058,1388,842,994]" gridcol="3" gridrow="5" pageId="7" pageNumber="8">Intertidal, breakwater zone; under rocks</td>
</tr>
<tr id="356B6C6C024D0044FF5148E2FAAE7C1A" box="[200,1388,1010,1066]" gridrow="6" pageId="7" pageNumber="8">
<th id="76BA0510024D0044FF5148E2FE5E7C1A" box="[200,412,1010,1066]" gridcol="0" gridrow="6" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFE8C48E2FED37C19" bold="true" pageId="7" pageNumber="8">Body (Long</emphasis>
× 
<emphasis id="B92FB23C024DFFBCFEBE4F01FE5A7C19" bold="true" box="[295,408,1041,1065]" pageId="7" pageNumber="8">wide mm)</emphasis>
</th>
<td id="76BA0510024D0044FE2D48E2FD297C1A" box="[436,747,1010,1066]" gridcol="1" gridrow="6" pageId="7" pageNumber="8">Oval (50–30 × 15–7)</td>
<td id="76BA0510024D0044FC9B48E2FBCC7C1A" box="[770,1038,1010,1066]" gridcol="2" gridrow="6" pageId="7" pageNumber="8">Oval (10 × 4)</td>
<td id="76BA0510024D0044FBBB48E2FAAE7C1A" box="[1058,1388,1010,1066]" gridcol="3" gridrow="6" pageId="7" pageNumber="8">Elliptical (15–20 × 10–12) (Figs 1A–D, 3A)</td>
</tr>
<tr id="356B6C6C024D0044FF514F29FAAE7CA1" box="[200,1388,1081,1169]" gridrow="7" pageId="7" pageNumber="8" rowspan-0="1" rowspan-1="1" rowspan-3="1">
<td id="76BA0510024D0044FC9B4F29FBCC7CA1" box="[770,1038,1081,1169]" gridcol="2" gridrow="7" pageId="7" pageNumber="8">Color ivory, with small brownish spots condensed into three fine</td>
</tr>
<tr id="356B6C6C024D0044FF514F89FAAE7DA2" box="[200,1388,1177,1426]" gridrow="8" pageId="7" pageNumber="8">
<th id="76BA0510024D0044FF514F89FE5E7DA2" box="[200,412,1177,1426]" gridcol="0" gridrow="8" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFF564FD9FE5E7D31" bold="true" pageId="7" pageNumber="8">Dorsal coloration and colour pattern</emphasis>
</th>
<td id="76BA0510024D0044FE2D4F89FD297DA2" box="[436,747,1177,1426]" gridcol="1" gridrow="8" pageId="7" pageNumber="8">
Black-brown with a reddish- orange margin (
<bibRefCitation id="EFCA13DF024DFFBCFDE94FA9FDD57CC1" author="Stimpson W." pageId="7" pageNumber="8" pagination="19 - 31" refId="ref32821" refString="Stimpson W. 1857. Prodromus descriptionis animalium evertebratorum, quae in Expeditione ad Oceanum Pacificum Septentrionalem a Republica Federata missa, Johanne Rodgers Duce, observavit et descripsit. Pars I, Turbellaria Dendrocoela. Proceedings of the Academy of Natural Sciences of Philadelphia 9: 19 - 31. https: // doi. org / 10.5962 / bhl. title. 51447" type="journal article" year="1857">Stimpson 1857</bibRefCitation>
); velvety black, reddish-brown margin (
<bibRefCitation id="EFCA13DF024DFFBCFE4F4E09FD0A7D02" author="Yeri M. &amp; Kaburaki T." box="[470,712,1305,1330]" pageId="7" pageNumber="8" pagination="1 - 54" refId="ref33394" refString="Yeri M. &amp; Kaburaki T. 1918. Description of some Japanese polyclad Turbellaria. Journal of the College of Science, Tokio Imperical University 39 (9): 1 - 54. Available from https: // biostor. org / reference / 144400 [accessed 2 Aug. 2023]" type="journal article" year="1918">Yeri &amp; Kaburaki 1918</bibRefCitation>
)
</td>
<td id="76BA0510024D0044FC9B4F89FBCC7DA2" box="[770,1038,1177,1426]" gridcol="2" gridrow="8" pageId="7" pageNumber="8">longitudinal grooves; transverse red stripes (juveniles) or black (adults) in front of tentacles; black spots on the anterior margin giving the appearance of marginal eyes</td>
<td id="76BA0510024D0044FBBB4F89FAAE7DA2" box="[1058,1388,1177,1426]" gridcol="3" gridrow="8" pageId="7" pageNumber="8">Beige background coloration, with light brown and white pigmentation that produce a reticulated appearance (Fig. 1A–B)</td>
</tr>
<tr id="356B6C6C024D0044FF514EB1FAAE7DC9" box="[200,1388,1441,1529]" gridrow="9" pageId="7" pageNumber="8">
<th id="76BA0510024D0044FF514EB1FE5E7DC9" box="[200,412,1441,1529]" gridcol="0" gridrow="9" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFF4C4ED1FE527DE9" bold="true" box="[213,400,1473,1497]" pageId="7" pageNumber="8">Nuchal tentacles</emphasis>
</th>
<td id="76BA0510024D0044FE2D4EB1FD297DC9" box="[436,747,1441,1529]" gridcol="1" gridrow="9" pageId="7" pageNumber="8">
Conical, orange in the apical region (
<bibRefCitation id="EFCA13DF024DFFBCFD874ED1FDA57DC9" author="Yeri M. &amp; Kaburaki T." pageId="7" pageNumber="8" pagination="1 - 54" refId="ref33394" refString="Yeri M. &amp; Kaburaki T. 1918. Description of some Japanese polyclad Turbellaria. Journal of the College of Science, Tokio Imperical University 39 (9): 1 - 54. Available from https: // biostor. org / reference / 144400 [accessed 2 Aug. 2023]" type="journal article" year="1918">Yeri &amp; Kaburaki 1918</bibRefCitation>
)
</td>
<td id="76BA0510024D0044FC9B4EB1FBCC7DC9" box="[770,1038,1441,1529]" gridcol="2" gridrow="9" pageId="7" pageNumber="8">Pointed, brown colored in the apical region</td>
<td id="76BA0510024D0044FBBB4EB1FAAE7DC9" box="[1058,1388,1441,1529]" gridcol="3" gridrow="9" pageId="7" pageNumber="8">Rudimentary nipple-shaped (Figs 1F, 3B)</td>
</tr>
<tr id="356B6C6C024D0044FF514D00FAAE7E58" box="[200,1388,1552,1640]" gridrow="10" pageId="7" pageNumber="8">
<th id="76BA0510024D0044FF514D00FE5E7E58" box="[200,412,1552,1640]" gridcol="0" gridrow="10" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFF4E4D00FE9D7E58" bold="true" pageId="7" pageNumber="8">Prostatic vesicle morphology and position</emphasis>
</th>
<td id="76BA0510024D0044FE2D4D00FD297E58" box="[436,747,1552,1640]" gridcol="1" gridrow="10" pageId="7" pageNumber="8">
Oval, located anterior and dorsal to the seminal vesicle (
<bibRefCitation id="EFCA13DF024DFFBCFE4F4D40FD0A7E58" author="Yeri M. &amp; Kaburaki T." box="[470,712,1616,1640]" pageId="7" pageNumber="8" pagination="1 - 54" refId="ref33394" refString="Yeri M. &amp; Kaburaki T. 1918. Description of some Japanese polyclad Turbellaria. Journal of the College of Science, Tokio Imperical University 39 (9): 1 - 54. Available from https: // biostor. org / reference / 144400 [accessed 2 Aug. 2023]" type="journal article" year="1918">Yeri &amp; Kaburaki 1918</bibRefCitation>
)
</td>
<td id="76BA0510024D0044FC9B4D00FBCC7E58" box="[770,1038,1552,1640]" gridcol="2" gridrow="10" pageId="7" pageNumber="8">Oval, located ventral to the seminal vesicle</td>
<td id="76BA0510024D0044FBBB4D00FAAE7E58" box="[1058,1388,1552,1640]" gridcol="3" gridrow="10" pageId="7" pageNumber="8">Oval, anterior to the seminal vesicle (Figs 1I, 2D, 3C–D)</td>
</tr>
<tr id="356B6C6C024D0044FF514D6FFAAE7EC7" box="[200,1388,1663,1783]" gridrow="11" pageId="7" pageNumber="8">
<th id="76BA0510024D0044FF514D6FFE5E7EC7" box="[200,412,1663,1783]" gridcol="0" gridrow="11" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFF704DBEFEBE7EF6" bold="true" box="[233,380,1710,1734]" pageId="7" pageNumber="8">Penis papilla</emphasis>
</th>
<td id="76BA0510024D0044FE2D4D6FFD297EC7" box="[436,747,1663,1783]" gridcol="1" gridrow="11" pageId="7" pageNumber="8">
Elongated and slender cylindrical, covered by a sheath (
<bibRefCitation id="EFCA13DF024DFFBCFD874DAFFDA57EC7" author="Yeri M. &amp; Kaburaki T." pageId="7" pageNumber="8" pagination="1 - 54" refId="ref33394" refString="Yeri M. &amp; Kaburaki T. 1918. Description of some Japanese polyclad Turbellaria. Journal of the College of Science, Tokio Imperical University 39 (9): 1 - 54. Available from https: // biostor. org / reference / 144400 [accessed 2 Aug. 2023]" type="journal article" year="1918">Yeri &amp; Kaburaki 1918</bibRefCitation>
)
</td>
<td id="76BA0510024D0044FC9B4D6FFBCC7EC7" box="[770,1038,1663,1783]" gridcol="2" gridrow="11" pageId="7" pageNumber="8">Elongate</td>
<td id="76BA0510024D0044FBBB4D6FFAAE7EC7" box="[1058,1388,1663,1783]" gridcol="3" gridrow="11" pageId="7" pageNumber="8">Short (Fig. 2F)</td>
</tr>
<tr id="356B6C6C024D0044FF514C16FAAE7F2F" box="[200,1388,1798,1823]" gridrow="12" pageId="7" pageNumber="8">
<th id="76BA0510024D0044FF514C16FE5E7F2F" box="[200,412,1798,1823]" gridcol="0" gridrow="12" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFE8B4C16FE917F2E" bold="true" box="[274,339,1798,1822]" pageId="7" pageNumber="8">Stylet</emphasis>
</th>
<td id="76BA0510024D0044FE2D4C16FD297F2F" box="[436,747,1798,1823]" gridcol="1" gridrow="12" pageId="7" pageNumber="8">Absent</td>
<td id="76BA0510024D0044FC9B4C16FBCC7F2F" box="[770,1038,1798,1823]" gridcol="2" gridrow="12" pageId="7" pageNumber="8">Absent</td>
<td id="76BA0510024D0044FBBB4C16FAAE7F2F" box="[1058,1388,1798,1823]" gridcol="3" gridrow="12" pageId="7" pageNumber="8">Present (Figs 2B, G, 3C–D)</td>
</tr>
<tr id="356B6C6C024D0044FF514C3EFAAE7FB7" box="[200,1388,1838,1927]" gridrow="13" pageId="7" pageNumber="8">
<th id="76BA0510024D0044FF514C3EFE5E7FB7" box="[200,412,1838,1927]" gridcol="0" gridrow="13" pageId="7" pageNumber="8">
<emphasis id="B92FB23C024DFFBCFF7A4C5EFE437F56" bold="true" box="[227,385,1870,1894]" pageId="7" pageNumber="8">Lang’s vesicle</emphasis>
</th>
<td id="76BA0510024D0044FE2D4C3EFD297FB7" box="[436,747,1838,1927]" gridcol="1" gridrow="13" pageId="7" pageNumber="8">Double or bifurcated, anterior to the male gonopore</td>
<td id="76BA0510024D0044FC9B4C3EFBCC7FB7" box="[770,1038,1838,1927]" gridcol="2" gridrow="13" pageId="7" pageNumber="8">Double or bifurcated, anterior to the male gonopore</td>
<td id="76BA0510024D0044FBBB4C3EFAAE7FB7" box="[1058,1388,1838,1927]" gridcol="3" gridrow="13" pageId="7" pageNumber="8">Tripartite, posterior to the male gonopore (Figs 1I, 2A, 3C–D)</td>
</tr>
</table>
</paragraph>
<paragraph id="8BE46E2E0242FFB3FF244AA4FE7579FE" blockId="8.[189,439,436,462]" box="[189,439,436,462]" pageId="8" pageNumber="9">
<heading id="D0ACD9420242FFB3FF244AA4FE7579FE" bold="true" box="[189,439,436,462]" fontSize="11" level="3" pageId="8" pageNumber="9" reason="3">
<emphasis id="B92FB23C0242FFB3FF244AA4FE7579FE" bold="true" box="[189,439,436,462]" pageId="8" pageNumber="9">Taxonomic remarks</emphasis>
</heading>
</paragraph>
<paragraph id="8BE46E2E0242FFB3FF244AF2FDA57A9C" blockId="8.[188,1399,482,684]" pageId="8" pageNumber="9">
Within the TEP, 
<taxonomicName id="4C5B15AD0242FFB3FE174AF2FD5579CC" authorityName="Ramos-Sánchez" authorityYear="2024" box="[398,663,482,508]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="marianae" status="sp. nov.">
<emphasis id="B92FB23C0242FFB3FE174AF2FD5579CC" box="[398,663,482,508]" italics="true" pageId="8" pageNumber="9">Callioplana marianae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21C0F470242FFB3FD3A4AF3FCC779CD" box="[675,773,483,509]" pageId="8" pageNumber="9" rank="species">sp. nov.</taxonomicNameLabel>
, 
<taxonomicName id="4C5B15AD0242FFB3FC8F4AF2FAB079CD" authority="(Heath &amp; McGregor, 1912)" baseAuthorityName="Heath &amp; McGregor" baseAuthorityYear="1912" box="[790,1394,482,509]" family="Cryptocelidae" genus="Hylocelis" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="californica">
<emphasis id="B92FB23C0242FFB3FC8F4AF2FBD079CC" box="[790,1042,482,508]" italics="true" pageId="8" pageNumber="9">Hylocelis californica</emphasis>
(
<bibRefCitation id="EFCA13DF0242FFB3FBBF4AF2FAA879CD" author="Heath H. &amp; McGregor E. A." box="[1062,1386,482,509]" pageId="8" pageNumber="9" pagination="455 - 488" refId="ref29337" refString="Heath H. &amp; McGregor E. A. 1912. New polyclads from Monterey Bay, California. Proceedings of the Academy of Natural Sciences of Philadelphia 64: 455 - 488. Available from https: // www. biodiversitylibrary. org / page / 1695113 [accessed 2 Aug. 2023]." type="journal article" year="1912">Heath &amp; McGregor, 1912</bibRefCitation>
)
</taxonomicName>
, and 
<taxonomicName id="4C5B15AD0242FFB3FF6A4916FD097A10" authority="(Boone, 1929)" baseAuthorityName="Boone" baseAuthorityYear="1929" box="[243,715,518,544]" family="Stylochoplanidae" genus="Interplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="sandiegensis">
<emphasis id="B92FB23C0242FFB3FF6A4916FDD37A10" box="[243,529,518,544]" italics="true" pageId="8" pageNumber="9">Interplana sandiegensis</emphasis>
(
<bibRefCitation id="EFCA13DF0242FFB3FDBF4916FD017A10" author="Boone E." box="[550,707,518,544]" pageId="8" pageNumber="9" pagination="33 - 46" refId="ref28217" refString="Boone E. 1929. Five new polyclads from the California. Annals and Magazine of Natural History, Series 10 3 (13): 33 - 46. https: // doi. org / 10.1080 / 00222932908672934" type="journal article" year="1929">Boone, 1929</bibRefCitation>
)
</taxonomicName>
share a tripartite Lang’s vesicle. However, 
<taxonomicName id="4C5B15AD0242FFB3FB734916FEEF7A73" authorityName="Ramos-Sánchez" authorityYear="2024" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="marianae">
<emphasis id="B92FB23C0242FFB3FB734916FEEF7A73" italics="true" pageId="8" pageNumber="9">Callioplana marianae</emphasis>
</taxonomicName>
has a free prostatic vesicle (
<figureCitation id="136072AB0242FFB3FDE04939FD187A73" box="[633,730,553,579]" captionStart="Fig" captionStartId="5.[189,232,1814,1840]" captionTargetBox="[189,1398,269,1755]" captionTargetId="figure-11@5.[189,1398,269,1755]" captionTargetPageId="5" captionText="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="8" pageNumber="9">Figs 2D</figureCitation>
, 
<figureCitation id="136072AB0242FFB3FD7F4939FCC97A73" box="[742,779,553,579]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="8" pageNumber="9">3D</figureCitation>
), whereas 
<taxonomicName id="4C5B15AD0242FFB3FC13493AFBEC7A73" baseAuthorityName="Heath &amp; McGregor" baseAuthorityYear="1912" box="[906,1070,553,579]" family="Cryptocelidae" genus="Hylocelis" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="californica">
<emphasis id="B92FB23C0242FFB3FC13493AFBEC7A73" box="[906,1070,553,579]" italics="true" pageId="8" pageNumber="9">H. californica</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C5B15AD0242FFB3FBFE493AFAD77A73" baseAuthorityName="Boone" baseAuthorityYear="1929" box="[1127,1301,553,579]" family="Stylochoplanidae" genus="Interplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="sandiegensis">
<emphasis id="B92FB23C0242FFB3FBFE493AFAD77A73" box="[1127,1301,553,579]" italics="true" pageId="8" pageNumber="9">I. sandiegensis</emphasis>
</taxonomicName>
have an interpolated prostatic vesicle. Additionally, 
<taxonomicName id="4C5B15AD0242FFB3FD26495CFC017A56" authorityName="Ramos-Sánchez" authorityYear="2024" box="[703,963,588,614]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="marianae">
<emphasis id="B92FB23C0242FFB3FD26495CFC017A56" box="[703,963,588,614]" italics="true" pageId="8" pageNumber="9">Callioplana marianae</emphasis>
</taxonomicName>
possesses nuchal tentacles (
<figureCitation id="136072AB0242FFB3FA89495CFAB07A56" box="[1296,1394,588,614]" captionStart="Fig" captionStartId="4.[189,232,1776,1802]" captionTargetBox="[189,1398,267,1734]" captionTargetId="figure-16@4.[189,1398,267,1734]" captionTargetPageId="4" captionText="Fig. 1. Callioplana marianae sp. nov., paratype, ⚥ (UMAR PLAT–047). A. Specimen in vivo. B. Specimen preserved in ethanol. C–D. Specimen stained in Mayer’s carmalum and cleared in methyl salicylate. E–I. Details of C, in whole mount. E–F, H. Anterior region of the body. E. Brain. F. Nuchal tentacle. G. Pharynx. H. Tentacular and cerebral eyes. I. Male and female reproductive system. Abbreviations: b = brain; ce = cerebral eyes; gcm = globuli cell masses; lv = Lang’s vesicle; nt = nuchal tentacle; p = pharynx; pp = penis papilla; pv = prostatic vesicle; sv = seminal vesicle; te = tentacular eyes; u = uterus." figureDoi="http://doi.org/10.5281/zenodo.13947262" httpUri="https://zenodo.org/record/13947262/files/figure.png" pageId="8" pageNumber="9">Figs 1H</figureCitation>
, 
<figureCitation id="136072AB0242FFB3FF24497FFF227AB9" box="[189,224,623,649]" captionStart="Fig" captionStartId="6.[189,232,1716,1742]" captionTargetBox="[257,1335,294,1636]" captionTargetId="figure-16@6.[232,1355,265,1669]" captionTargetPageId="6" captionText="Fig. 3. Callioplana marianae sp. nov. A–B. Paratype, ⚥ (UMAR PLAT–047). C. Holotype, ⚥ (UMAR PLAT–046).D. Paratype,⚥ (UMAR PLAT–048).A. Diagrammatic representation of complete specimen. B. Diagrammatic representation of nuchal tentacle and eyes. C. Diagrammatic representation of the male and female reproductive systems, in frontal histological sections. D. Diagrammatic representation of the male and female reproductive systems, in sagittal section. Abbreviations: b = brain; ce = cerebral eyes; cg = cement gland; dlv = duct of Lang’s vesicle; fg = female gonopore; gcm = globuli cell masses; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; nt = nuchal tentacle; p = pharynx; pv = prostatic vesicle; spv = spermiducal vesicle; st = stylet; sv = seminal vesicle; te = tentacular eyes; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947266" httpUri="https://zenodo.org/record/13947266/files/figure.png" pageId="8" pageNumber="9">3B</figureCitation>
) and a penis papilla (
<figureCitation id="136072AB0242FFB3FE43497FFDF27AB9" box="[474,560,623,649]" captionStart="Fig" captionStartId="5.[189,232,1814,1840]" captionTargetBox="[189,1398,269,1755]" captionTargetId="figure-11@5.[189,1398,269,1755]" captionTargetPageId="5" captionText="Fig. 2. Callioplana marianae sp. nov. A, D–G. Paratype, ⚥ (UMAR-PLAT–048). B–C, H. Holotype, ⚥ (UMAR-PLAT–046). A, D–G. Male and female reproductive system, in frontal histological sections. B–C, H. Male and female reproductive system, in sagittal sections. Abbreviations: cg = cement gland; fg = female gonopore; lv = Lang’s vesicle; ma = male atrium; mg = male gonopore; pp = penis papilla; pv = prostatic vesicle; spv = spermiducal vesicle; sv = seminal vesicle; st = stylet; u = uterus; va = vagina." figureDoi="http://doi.org/10.5281/zenodo.13947264" httpUri="https://zenodo.org/record/13947264/files/figure.png" pageId="8" pageNumber="9">Fig. 2F</figureCitation>
), features that relate it more closely to the family 
<taxonomicName id="4C5B15AD0242FFB3FBED497FFADD7AB9" authorityName="Hyman" authorityYear="1953" box="[1140,1311,623,649]" family="Callioplanidae" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="family">Callioplanidae</taxonomicName>
than to others within the suborder 
<taxonomicName id="4C5B15AD0242FFB3FE6C4982FDA17A9C" authorityName="Lang" authorityYear="1884" box="[501,611,658,684]" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="subOrder" subOrder="Acotylea">Acotylea</taxonomicName>
.
</paragraph>
<paragraph id="8BE46E2E0242FFB3FF2449C4FDAE7BAE" blockId="8.[187,1398,724,927]" pageId="8" pageNumber="9">
The family 
<taxonomicName id="4C5B15AD0242FFB3FEDC49C4FE327ADE" authorityName="Hyman" authorityYear="1953" box="[325,496,724,750]" family="Callioplanidae" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="family">Callioplanidae</taxonomicName>
has 14 valid genera, and the new species described here belongs to the genus 
<taxonomicName id="4C5B15AD0242FFB3FF2449E7FE8B7B21" authorityName="Stimpson" authorityYear="1857" box="[189,329,759,785]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FF2449E7FE8B7B21" box="[189,329,759,785]" italics="true" pageId="8" pageNumber="9">Callioplana</emphasis>
</taxonomicName>
and is established as 
<taxonomicName id="4C5B15AD0242FFB3FDD949E7FC807B21" authorityName="Ramos-Sánchez" authorityYear="2024" box="[576,834,759,785]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="marianae" status="sp. nov.">
<emphasis id="B92FB23C0242FFB3FDD949E7FC807B21" box="[576,834,759,785]" italics="true" pageId="8" pageNumber="9">Callioplana marianae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21C0F470242FFB3FCD349E8FC647B22" box="[842,934,760,786]" pageId="8" pageNumber="9" rank="species">sp. nov.</taxonomicNameLabel>
, due to the presence of nuchal tentacles, cerebral and tentacular eyes and a highly developed Lang’s vesicle; this last character is absent in the genera 
<taxonomicName id="4C5B15AD0242FFB3FE88482DFDDD7B68" authority="Hyman, 1959" authorityName="Hyman" authorityYear="1959" box="[273,543,829,856]" family="Callioplanidae" genus="Asolenia" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FE88482DFEBA7B67" box="[273,376,829,855]" italics="true" pageId="8" pageNumber="9">Asolenia</emphasis>
Hyman, 1959
</taxonomicName>
, 
<emphasis id="B92FB23C0242FFB3FDB3482DFD6C7B67" box="[554,686,829,855]" italics="true" pageId="8" pageNumber="9">Crasiplana</emphasis>
Hyman, 1955, 
<taxonomicName id="4C5B15AD0242FFB3FCF8482DFB607B68" authority="Bock, 1925" authorityName="Bock" authorityYear="1925" box="[865,1186,829,856]" family="Callioplanidae" genus="Discostylochus" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FCF8482DFBD17B67" box="[865,1043,829,855]" italics="true" pageId="8" pageNumber="9">Discostylochus</emphasis>
<bibRefCitation id="EFCA13DF0242FFB3FB80482DFB607B68" author="Bock S." box="[1049,1186,829,856]" pageId="8" pageNumber="9" pagination="48 - 84" refId="ref28148" refString="Bock S. 1925. Papers from Dr. Th. Mortensen's Pacific Expedition 1914 - 16. XXVII. Planarians, Pt. III. Polyclads living together with pagurids Petrochirus californiensis Boucrez. Videnskabelige Meddelelser fran Dansk naturhistorisk Forening 79: 48 - 84. Available from https: // www. biodiversitylibrary. org / page / 60461980 [accessed 2 Aug. 2023]." type="journal article" year="1925">Bock, 1925</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="4C5B15AD0242FFB3FB35482DFF3B7B4C" authority="Bock, 1925" authorityName="Bock" authorityYear="1925" family="Callioplanidae" genus="Kaburakia" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FB35482DFAEB7B67" box="[1196,1321,829,855]" italics="true" pageId="8" pageNumber="9">Kaburakia</emphasis>
<bibRefCitation id="EFCA13DF0242FFB3FAA8482DFF3B7B4C" author="Bock S." pageId="8" pageNumber="9" pagination="48 - 84" refId="ref28148" refString="Bock S. 1925. Papers from Dr. Th. Mortensen's Pacific Expedition 1914 - 16. XXVII. Planarians, Pt. III. Polyclads living together with pagurids Petrochirus californiensis Boucrez. Videnskabelige Meddelelser fran Dansk naturhistorisk Forening 79: 48 - 84. Available from https: // www. biodiversitylibrary. org / page / 60461980 [accessed 2 Aug. 2023]." type="journal article" year="1925">Bock, 1925</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="4C5B15AD0242FFB3FE9D4872FDC87B4B" authority="Bock, 1913" authorityName="Bock" authorityYear="1913" box="[260,522,865,891]" family="Callioplanidae" genus="Meixneria" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FE9D4872FEBF7B4B" box="[260,381,866,891]" italics="true" pageId="8" pageNumber="9">Meixneria</emphasis>
<bibRefCitation id="EFCA13DF0242FFB3FE1B4871FDC87B4B" author="Bock S." box="[386,522,865,891]" pageId="8" pageNumber="9" pagination="29 - 344" refId="ref28050" refString="Bock S. 1913. Studien uber Polycladen. Zoologiska Bidrag fran Uppsala 2: 29 - 344. Available from https: // www. biodiversitylibrary. org / part / 77255 [accessed 2 Aug. 2023]." type="journal article" year="1913">Bock, 1913</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="4C5B15AD0242FFB3FD8B4871FC887B4B" authority="Holleman, 2007" authorityName="Holleman" authorityYear="2007" box="[530,842,865,891]" family="Callioplanidae" genus="Okakarus" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FD8B4871FD467B4B" box="[530,644,865,891]" italics="true" pageId="8" pageNumber="9">Okakarus</emphasis>
Holleman, 2007
</taxonomicName>
, 
<taxonomicName id="4C5B15AD0242FFB3FCC84871FB4A7B4B" authority="Bock, 1913" authorityName="Bock" authorityYear="1913" box="[849,1160,865,891]" family="Callioplanidae" genus="Parastylochus" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FCC84871FC3B7B4B" box="[849,1017,865,891]" italics="true" pageId="8" pageNumber="9">Parastylochus</emphasis>
<bibRefCitation id="EFCA13DF0242FFB3FB994871FB4A7B4B" author="Bock S." box="[1024,1160,865,891]" pageId="8" pageNumber="9" pagination="29 - 344" refId="ref28050" refString="Bock S. 1913. Studien uber Polycladen. Zoologiska Bidrag fran Uppsala 2: 29 - 344. Available from https: // www. biodiversitylibrary. org / part / 77255 [accessed 2 Aug. 2023]." type="journal article" year="1913">Bock, 1913</bibRefCitation>
</taxonomicName>
, 
<taxonomicName id="4C5B15AD0242FFB3FB094871FF3A7BAE" authority="Faubel, 1983" authorityName="Faubel" authorityYear="1983" family="Callioplanidae" genus="Tokiphallus" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FB094871FADA7B4B" box="[1168,1304,865,891]" italics="true" pageId="8" pageNumber="9">Tokiphallus</emphasis>
<bibRefCitation id="EFCA13DF0242FFB3FA864871FF3A7BAE" author="Faubel A." pageId="8" pageNumber="9" pagination="17 - 121" refId="ref28888" refString="Faubel A. 1983. The Polycladida, Turbellaria proposal and establishment of a new system part I. The Acotylea. Mitteilungen des Hamburgischen Zoologischen Museum und Institut 80: 17 - 121." type="journal article" year="1983">Faubel, 1983</bibRefCitation>
</taxonomicName>
, and 
<taxonomicName id="4C5B15AD0242FFB3FEA14895FDAA7BAE" authority="Lang, 1884" authorityName="Lang" authorityYear="1884" box="[312,616,900,927]" family="Callioplanidae" genus="Trigonoporus" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FEA14895FE1A7BAE" box="[312,472,901,926]" italics="true" pageId="8" pageNumber="9">Trigonoporus</emphasis>
<bibRefCitation id="EFCA13DF0242FFB3FE464895FDAA7BAE" author="Lang A." box="[479,616,900,927]" pageId="8" pageNumber="9" pagination="1 - 688" refId="ref30284" refString="Lang A. 1884. Die Polycladen (Seeplanarien) des Golfes von Neapel und der angrensenden Meeresabschnitte. Eine Monographie. Fauna und Flora des Golfes von Neapel 11: 1 - 688. https: // doi. org / 10.5962 / bhl. title. 10545" type="journal article" year="1884">Lang, 1884</bibRefCitation>
</taxonomicName>
.
</paragraph>
<paragraph id="8BE46E2E0242FFB3FF2448D5FC3A7C5D" blockId="8.[189,1399,965,1133]" pageId="8" pageNumber="9">
<taxonomicName id="4C5B15AD0242FFB3FF2448D5FE017BEF" authorityName="Ramos-Sánchez" authorityYear="2024" box="[189,451,965,991]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="marianae" status="sp. nov.">
<emphasis id="B92FB23C0242FFB3FF2448D5FE017BEF" box="[189,451,965,991]" italics="true" pageId="8" pageNumber="9">Callioplana marianae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21C0F470242FFB3FE5748D6FDEE7BD0" box="[462,556,966,992]" pageId="8" pageNumber="9" rank="species">sp. nov.</taxonomicNameLabel>
is further distinguished from the genus 
<taxonomicName id="4C5B15AD0242FFB3FB8D48D5FAB37BD0" authority="Faubel, 1983" authorityName="Faubel" authorityYear="1983" box="[1044,1393,965,992]" family="Callioplanidae" genus="Koinostylochus" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FB8D48D5FB0B7BEF" box="[1044,1225,965,991]" italics="true" pageId="8" pageNumber="9">Koinostylochus</emphasis>
<bibRefCitation id="EFCA13DF0242FFB3FB4A48D5FAB37BD0" author="Faubel A." box="[1235,1393,965,992]" pageId="8" pageNumber="9" pagination="17 - 121" refId="ref28888" refString="Faubel A. 1983. The Polycladida, Turbellaria proposal and establishment of a new system part I. The Acotylea. Mitteilungen des Hamburgischen Zoologischen Museum und Institut 80: 17 - 121." type="journal article" year="1983">Faubel, 1983</bibRefCitation>
</taxonomicName>
, which has a simple and oval Lang’s vesicle, in contrast to the tripartite and highly developed Lang’s vesicle of the new species. Additionally, 
<taxonomicName id="4C5B15AD0242FFB3FD234F1CFC007C16" authorityName="Ramos-Sánchez" authorityYear="2024" box="[698,962,1036,1062]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="marianae">
<emphasis id="B92FB23C0242FFB3FD234F1CFC007C16" box="[698,962,1036,1062]" italics="true" pageId="8" pageNumber="9">Callioplana marianae</emphasis>
</taxonomicName>
lacks marginal eyes, a feature that separates it from the genera 
<taxonomicName id="4C5B15AD0242FFB3FD924F3FFC957C79" authority="Prudhoe, 1982" authorityName="Prudhoe" authorityYear="1982" box="[523,855,1071,1097]" family="Callioplanidae" genus="Ancoratheca" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FD924F3FFD637C79" box="[523,673,1071,1097]" italics="true" pageId="8" pageNumber="9">Ancoratheca</emphasis>
Prudhoe, 1982
</taxonomicName>
, 
<taxonomicName id="4C5B15AD0242FFB3FCFC4F20FA867C7A" authority="Bulnes, Faubel &amp; Park, 2005" authorityName="Bulnes, Faubel &amp; Park" authorityYear="2005" box="[869,1348,1071,1098]" family="Callioplanidae" genus="Munseoma" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FCFC4F20FC247C79" box="[869,998,1072,1097]" italics="true" pageId="8" pageNumber="9">Munseoma</emphasis>
Bulnes, Faubel &amp; Park, 2005
</taxonomicName>
and 
<taxonomicName id="4C5B15AD0242FFB3FF274F42FDAD7C5C" authority="Yeri &amp; Kaburaki, 1920" authorityName="Yeri &amp; Kaburaki" authorityYear="1920" box="[190,623,1106,1132]" family="Callioplanidae" genus="Neostylochus" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FF274F42FE987C5C" box="[190,346,1106,1132]" italics="true" pageId="8" pageNumber="9">Neostylochus</emphasis>
Yeri &amp; Kaburaki, 1920
</taxonomicName>
, all of which have marginal eyes.
</paragraph>
<paragraph id="8BE46E2E0242FFB3FF244F84FC117D27" blockId="8.[189,1400,1171,1304]" pageId="8" pageNumber="9">
The genus 
<taxonomicName id="4C5B15AD0242FFB3FED84F84FE0F7C9E" authorityName="Stimpson" authorityYear="1857" box="[321,461,1172,1198]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FED84F84FE0F7C9E" box="[321,461,1172,1198]" italics="true" pageId="8" pageNumber="9">Callioplana</emphasis>
</taxonomicName>
was established by 
<bibRefCitation id="EFCA13DF0242FFB3FD224F84FC437C9E" author="Stimpson W." box="[699,897,1171,1198]" pageId="8" pageNumber="9" pagination="19 - 31" refId="ref32821" refString="Stimpson W. 1857. Prodromus descriptionis animalium evertebratorum, quae in Expeditione ad Oceanum Pacificum Septentrionalem a Republica Federata missa, Johanne Rodgers Duce, observavit et descripsit. Pars I, Turbellaria Dendrocoela. Proceedings of the Academy of Natural Sciences of Philadelphia 9: 19 - 31. https: // doi. org / 10.5962 / bhl. title. 51447" type="journal article" year="1857">Stimpson (1857)</bibRefCitation>
and amended by 
<bibRefCitation id="EFCA13DF0242FFB3FBCA4F84FAB17C9E" author="Yeri M. &amp; Kaburaki T." box="[1107,1395,1172,1198]" pageId="8" pageNumber="9" pagination="1 - 54" refId="ref33394" refString="Yeri M. &amp; Kaburaki T. 1918. Description of some Japanese polyclad Turbellaria. Journal of the College of Science, Tokio Imperical University 39 (9): 1 - 54. Available from https: // biostor. org / reference / 144400 [accessed 2 Aug. 2023]" type="journal article" year="1918">Yeri &amp; Kaburaki (1918)</bibRefCitation>
. It is characterized by the presence of nuchal tentacles, cerebral and tentacular eyes, a rod-shaped penis papilla (or “a rod-shaped muscular extension of the ejaculatory duct, with an outward bulge” as was mentioned by 
<bibRefCitation id="EFCA13DF0242FFB3FEFE4FEDFE387D27" author="Faubel A." box="[359,506,1277,1303]" pageId="8" pageNumber="9" pagination="17 - 121" refId="ref28888" refString="Faubel A. 1983. The Polycladida, Turbellaria proposal and establishment of a new system part I. The Acotylea. Mitteilungen des Hamburgischen Zoologischen Museum und Institut 80: 17 - 121." type="journal article" year="1983">Faubel 1983</bibRefCitation>
) and a highly developed Lang’s vesicle.
</paragraph>
<paragraph id="8BE46E2E0242FFB3FF244E2FFD167E39" blockId="8.[189,1399,1342,1545]" pageId="8" pageNumber="9">
Previously, two species were described in 
<taxonomicName id="4C5B15AD0242FFB3FD2C4E2FFC827D69" authorityName="Stimpson" authorityYear="1857" box="[693,832,1343,1369]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0242FFB3FD2C4E2FFC827D69" box="[693,832,1343,1369]" italics="true" pageId="8" pageNumber="9">Callioplana</emphasis>
</taxonomicName>
: 
<taxonomicName id="4C5B15AD0242FFB3FCC84E2FFB727D69" authority="Stimpson, 1857" authorityName="Stimpson" authorityYear="1857" box="[849,1200,1342,1369]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="marginata">
<emphasis id="B92FB23C0242FFB3FCC84E2FFC2F7D68" box="[849,1005,1343,1369]" italics="true" pageId="8" pageNumber="9">C. marginata</emphasis>
<bibRefCitation id="EFCA13DF0242FFB3FC6F4E2FFB727D69" author="Stimpson W." box="[1014,1200,1342,1369]" pageId="8" pageNumber="9" pagination="19 - 31" refId="ref32821" refString="Stimpson W. 1857. Prodromus descriptionis animalium evertebratorum, quae in Expeditione ad Oceanum Pacificum Septentrionalem a Republica Federata missa, Johanne Rodgers Duce, observavit et descripsit. Pars I, Turbellaria Dendrocoela. Proceedings of the Academy of Natural Sciences of Philadelphia 9: 19 - 31. https: // doi. org / 10.5962 / bhl. title. 51447" type="journal article" year="1857">Stimpson, 1857</bibRefCitation>
</taxonomicName>
from 
<collectingCountry id="F34C2EBE0242FFB3FB604E2FFAFD7D69" box="[1273,1343,1343,1369]" name="Japan" pageId="8" pageNumber="9">Japan</collectingCountry>
, and 
<taxonomicName id="4C5B15AD0242FFB3FF274E72FE377D4D" authority="Marcus, 1954" authorityName="Marcus" authorityYear="1954" box="[190,501,1378,1405]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="evelinae">
<emphasis id="B92FB23C0242FFB3FF274E72FE877D4C" box="[190,325,1378,1404]" italics="true" pageId="8" pageNumber="9">C. evelinae</emphasis>
<bibRefCitation id="EFCA13DF0242FFB3FEC94E72FE377D4D" author="Marcus E." box="[336,501,1378,1405]" pageId="8" pageNumber="9" pagination="419 - 489" refId="ref30783" refString="Marcus E. 1954. Turbellaria Brasileiros (11). Papeis avulsos do Departamento de Zoologia 11 (24): 419 - 489. Available from https: // doi. org / 10.11606 / 0031 - 1049.1954.11 p 419 - 489 [accessed 2 Aug. 2023]." type="journal article" year="1954">Marcus, 1954</bibRefCitation>
</taxonomicName>
from San Sebastian Island, 
<collectingCountry id="F34C2EBE0242FFB3FCCB4E72FC5F7D4C" box="[850,925,1378,1404]" name="Brazil" pageId="8" pageNumber="9">Brazil</collectingCountry>
. Both species differ from 
<taxonomicName id="4C5B15AD0242FFB3FB794E72FAB47D4C" authorityName="Ramos-Sánchez" authorityYear="2024" box="[1248,1398,1378,1404]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="marianae" status="sp. nov.">
<emphasis id="B92FB23C0242FFB3FB794E72FAB47D4C" box="[1248,1398,1378,1404]" italics="true" pageId="8" pageNumber="9">C. marianae</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21C0F470242FFB3FF244E96FEDA7D90" box="[189,280,1414,1440]" pageId="8" pageNumber="9" rank="species">sp. nov.</taxonomicNameLabel>
in the color and pattern of dorsal coloration, the position of the prostatic vesicle (
<tableCitation id="C6D95B950242FFB3FB434E95FAF07DAF" box="[1242,1330,1413,1439]" captionStart="Table 1" captionStartId="7.[189,259,265,291]" captionText="Table 1. Comparison of the morphological characters of Callioplana marianae sp. nov. with other two species of the genus." pageId="8" pageNumber="9">Table 1</tableCitation>
), and essentially in the morphology of a Lang’s vesicle (tripartite and Y-shaped in 
<taxonomicName id="4C5B15AD0242FFB3FBDA4EB9FB147DF2" authorityName="Ramos-Sánchez" authorityYear="2024" box="[1091,1238,1449,1475]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="marianae">
<emphasis id="B92FB23C0242FFB3FBDA4EB9FB147DF2" box="[1091,1238,1449,1475]" italics="true" pageId="8" pageNumber="9">C. marianae</emphasis>
</taxonomicName>
vs bifurcated in 
<taxonomicName id="4C5B15AD0242FFB3FF464EDCFEBD7DD5" authorityName="Stimpson" authorityYear="1857" box="[223,383,1484,1510]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="marginata">
<emphasis id="B92FB23C0242FFB3FF464EDCFEBD7DD5" box="[223,383,1484,1510]" italics="true" pageId="8" pageNumber="9">C. marginata</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C5B15AD0242FFB3FE594EDCFD8A7DD5" authorityName="Marcus" authorityYear="1954" box="[448,584,1483,1510]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="evelinae">
<emphasis id="B92FB23C0242FFB3FE594EDCFD8A7DD5" box="[448,584,1483,1510]" italics="true" pageId="8" pageNumber="9">C. evelinae</emphasis>
</taxonomicName>
) and a penis papilla (armed with a filiform stylet in 
<taxonomicName id="4C5B15AD0242FFB3FB414EDCFAAD7DD5" authorityName="Ramos-Sánchez" authorityYear="2024" box="[1240,1391,1484,1510]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="marianae">
<emphasis id="B92FB23C0242FFB3FB414EDCFAAD7DD5" box="[1240,1391,1484,1510]" italics="true" pageId="8" pageNumber="9">C. marianae</emphasis>
</taxonomicName>
, vs unarmed in 
<taxonomicName id="4C5B15AD0242FFB3FEF34EFFFDC47E38" authorityName="Stimpson" authorityYear="1857" box="[362,518,1519,1545]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="marginata">
<emphasis id="B92FB23C0242FFB3FEF34EFFFDC47E38" box="[362,518,1519,1545]" italics="true" pageId="8" pageNumber="9">C. marginata</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C5B15AD0242FFB3FDA64EFFFD017E39" authorityName="Marcus" authorityYear="1954" box="[575,707,1519,1545]" family="Callioplanidae" genus="Callioplana" kingdom="Animalia" order="Polycladida" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="evelinae">
<emphasis id="B92FB23C0242FFB3FDA64EFFFD017E39" box="[575,707,1519,1545]" italics="true" pageId="8" pageNumber="9">C. evelinae</emphasis>
</taxonomicName>
).
</paragraph>
</subSubSection>
<subSubSection id="C3413DA50242FFB3FF244D20FC4D7EAC" pageId="8" pageNumber="9" type="distribution">
<paragraph id="8BE46E2E0242FFB3FF244D20FE2C7E7A" blockId="8.[189,494,1584,1610]" box="[189,494,1584,1610]" pageId="8" pageNumber="9">
<heading id="D0ACD9420242FFB3FF244D20FE2C7E7A" bold="true" box="[189,494,1584,1610]" fontSize="11" level="3" pageId="8" pageNumber="9" reason="3">
<emphasis id="B92FB23C0242FFB3FF244D20FE2C7E7A" bold="true" box="[189,494,1584,1610]" pageId="8" pageNumber="9">Distribution and habitat</emphasis>
</heading>
</paragraph>
<paragraph id="8BE46E2E0242FFB3FF244D4FFC4D7EAC" blockId="8.[189,1398,1631,1692]" pageId="8" pageNumber="9">
Tropical Eastern Pacific. Central coast of 
<collectingRegion id="499FA0CC0242FFB3FD074D4FFD397E49" box="[670,763,1631,1657]" country="Mexico" name="Oaxaca" pageId="8" pageNumber="9">Oaxaca</collectingRegion>
: Camarón Beach, Zipolite, 
<collectingRegion id="499FA0CC0242FFB3FBAE4D4FFB507E49" box="[1079,1170,1631,1657]" country="Mexico" name="Oaxaca" pageId="8" pageNumber="9">Oaxaca</collectingRegion>
, 
<collectingCountry id="F34C2EBE0242FFB3FB044D4FFB387E49" box="[1181,1274,1631,1657]" name="Mexico" pageId="8" pageNumber="9">Mexico</collectingCountry>
. Intertidal, the polyclads were found under rocks in the breakwater zone.
</paragraph>
</subSubSection>
</treatment>
</document>