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<document id="CECF681003AC4706867C9B06CA2A84A6" 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="carolina" IM.materialsCitations_approvedBy="carolina" IM.metadata_approvedBy="carolina" IM.tables_approvedBy="carolina" IM.taxonomicNames_approvedBy="carolina" IM.treatmentCitations_approvedBy="carolina" IM.treatments_approvedBy="carolina" checkinTime="1729183243575" checkinUser="plazi" docAuthor="Ramos-Sánchez, Mariela" docDate="2024" docId="03F2DF380256FFA6FDB14E0EFC287A91" 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="Ommatoplana mexicana" docType="treatment" docVersion="3" lastPageNumber="30" 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="29" updateTime="1729620236822" 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="AEAC60FF38876485C8CDFCB53893549D">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="0FB2821B289E9339F0CCBE2A64006FD9">Ramos-Sánchez, Mariela</mods:namePart>
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<mods:affiliation id="D354D10420BF0065A32B2FD0E45A0253">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>
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<mods:date id="33149FE40763BC45BC4CFBF5D1BA7BCD">2024</mods:date>
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<subSubSection id="C3413DA50256FFA7FDB14E0EFBC97D09" box="[552,1035,1310,1337]" pageId="28" pageNumber="29" type="nomenclature">
<paragraph id="8BE46E2E0256FFA7FDB14E0EFBC97D09" blockId="28.[552,1035,1310,1337]" box="[552,1035,1310,1337]" pageId="28" pageNumber="29">
<heading id="D0ACD9420256FFA7FDB14E0EFBC97D09" box="[552,1035,1310,1337]" centered="true" fontSize="11" level="2" pageId="28" pageNumber="29" reason="2">
<taxonomicName id="4C5B15AD0256FFA7FDB14E0EFBC97D09" ID-CoL="49CTY" authority="(Hyman, 1953)" baseAuthorityName="Hyman" baseAuthorityYear="1953" box="[552,1035,1310,1337]" family="Pseudostylochidae" genus="Ommatoplana" kingdom="Animalia" order="Polycladida" pageId="28" pageNumber="29" phylum="Platyhelminthes" rank="species" species="mexicana">
<emphasis id="B92FB23C0256FFA7FDB14E0EFC937D08" bold="true" box="[552,849,1310,1337]" italics="true" pageId="28" pageNumber="29">Ommatoplana mexicana</emphasis>
(Hyman, 1953)
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C3413DA50256FFA7FF244E70FB347E31" pageId="28" pageNumber="29" type="reference_group">
<paragraph id="8BE46E2E0256FFA7FF244E70FDF77DAD" blockId="28.[189,1398,1376,1437]" pageId="28" pageNumber="29">
<treatmentCitationGroup id="AB4B49000256FFA7FF244E70FDF77DAD" pageId="28" pageNumber="29">
<treatmentCitation id="0AFA483F0256FFA7FF244E70FC8E7D4A" author="Hyman L. H." box="[189,844,1376,1403]" page="293" pageId="28" pageNumber="29" year="1953">
<taxonomicName id="4C5B15AD0256FFA7FF244E70FC8E7D4A" authority="Hyman, 1953 a: 291 - 293" authorityName="Hyman" authorityPageNumber="291 - 293" authorityYear="1953" box="[189,844,1376,1403]" family="Latocestidae" genus="Mexistylochus" kingdom="Animalia" order="Polycladida" pageId="28" pageNumber="29" phylum="Platyhelminthes" rank="species" species="tuberculatus">
<emphasis id="B92FB23C0256FFA7FF244E70FDC47D4A" box="[189,518,1376,1402]" italics="true" pageId="28" pageNumber="29">Mexistylochus tuberculatus</emphasis>
<bibRefCitation id="EFCA13DF0256FFA7FD8F4E70FC8E7D4A" author="Hyman L. H." box="[534,844,1376,1403]" pageId="28" pageNumber="29" pagination="265 - 392" refId="ref29610" refString="Hyman L. H. 1953 a. The polyclad flatworm of the Pacific coast of North America. Bulletin of the American Museum of Natural History 100 (2): 265 - 392. Available from http: // hdl. handle. net / 2246 / 1028 [accessed 2 Aug. 2023]." type="journal article" year="1953">Hyman, 1953a: 291293</bibRefCitation>
</taxonomicName>
</treatmentCitation>
, figs 2526 (
<typeStatus id="54E0D08C0256FFA7FC654E70FBF27D4A" box="[1020,1072,1376,1402]" pageId="28" pageNumber="29">type</typeStatus>
locality: Miramar Beach, Guaymas,
<collectingRegion id="499FA0CC0256FFA7FEF14E93FE7C7DAD" box="[360,446,1411,1437]" country="Mexico" name="Sonora" pageId="28" pageNumber="29">Sonora</collectingRegion>
,
<collectingCountry id="F34C2EBE0256FFA7FE534E93FDEB7DAD" box="[458,553,1411,1437]" name="Mexico" pageId="28" pageNumber="29">Mexico</collectingCountry>
).
</treatmentCitationGroup>
</paragraph>
<paragraph id="8BE46E2E0256FFA7FF244ED4FB347E31" blockId="28.[189,1398,1476,1538]" pageId="28" pageNumber="29">
<treatmentCitationGroup id="AB4B49000256FFA7FF244ED4FB347E31" pageId="28" pageNumber="29">
<taxonomicName id="4C5B15AD0256FFA7FF244ED4FE2B7DEE" ID-CoL="49CTY" baseAuthorityName="Hyman" baseAuthorityYear="1953" box="[189,489,1476,1502]" family="Pseudostylochidae" genus="Ommatoplana" kingdom="Animalia" order="Polycladida" pageId="28" pageNumber="29" phylum="Platyhelminthes" rank="species" species="mexicana">
<emphasis id="B92FB23C0256FFA7FF244ED4FE2B7DEE" box="[189,489,1476,1502]" italics="true" pageId="28" pageNumber="29">Ommatoplana mexicana</emphasis>
</taxonomicName>
<treatmentCitation id="0AFA483F0256FFA7FD854ED5FCC67DEE" author="Hyman L. H." box="[540,772,1476,1503]" page="74" pageId="28" pageNumber="29" year="1955">
<bibRefCitation id="EFCA13DF0256FFA7FD854ED5FCC67DEE" author="Hyman L. H." box="[540,772,1476,1503]" pageId="28" pageNumber="29" pagination="65 - 82" refId="ref29742" refString="Hyman L. H. 1955 a. Some polyclad flatworms from Polynesia and Micronesia. Proceedings of the United States National Museum 105 (3352): 65 - 82. https: // doi. org / 10.5479 / si. 00963801.105 - 3352.65 Hyman L. H. 1955 b. The polyclad flatworms of the Pacific coast of North America. Additions and corrections. American Museum Novitates 1704: 1 - 11. Available from http: // hdl. handle. net / 2246 / 4856 [accessed 2 Aug. 2023]." type="journal article" year="1955">Hyman 1955a: 74</bibRefCitation>
</treatmentCitation>
(new combination, new name); 1955b: 9 (new combination). —
<treatmentCitation id="0AFA483F0256FFA7FE254EF7FDBF7E31" author="Faubel A." box="[444,637,1511,1538]" page="69" pageId="28" pageNumber="29" year="1983">
<bibRefCitation id="EFCA13DF0256FFA7FE254EF7FDBF7E31" author="Faubel A." box="[444,637,1511,1538]" pageId="28" pageNumber="29" 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: 69</bibRefCitation>
</treatmentCitation>
(identification keys). —
<treatmentCitation id="0AFA483F0256FFA7FC3E4EF8FBAB7E31" author="Brusca R. C." box="[935,1129,1511,1538]" page="69" pageId="28" pageNumber="29" year="2005">
<bibRefCitation id="EFCA13DF0256FFA7FC3E4EF8FBAB7E31" author="Brusca R. C." box="[935,1129,1511,1538]" pageId="28" pageNumber="29" pagination="1 - 429" refId="ref28280" refString="Brusca R. C. 2005. Platyhelminthes &amp; Nemertea. In: Hendricky M. E., Brusca R. C. &amp; Findley L. T. (eds) Listado y Distribucion de la Macrofauna del Golfo de California, Mexico: 1 - 429. Arizona - Sonora Desert Museum, Tucson." type="book chapter" year="2005">Brusca 2005: 69</bibRefCitation>
</treatmentCitation>
(checklist).
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="C3413DA50256FFA7FF244D39FB027E41" box="[189,1216,1577,1650]" pageId="28" pageNumber="29" type="distribution">
<paragraph id="8BE46E2E0256FFA7FF244D39FE947E73" blockId="28.[189,342,1577,1603]" box="[189,342,1577,1603]" pageId="28" pageNumber="29">
<heading id="D0ACD9420256FFA7FF244D39FE947E73" bold="true" box="[189,342,1577,1603]" fontSize="11" level="3" pageId="28" pageNumber="29" reason="3">
<emphasis id="B92FB23C0256FFA7FF244D39FE947E73" bold="true" box="[189,342,1577,1603]" pageId="28" pageNumber="29">Distribution</emphasis>
</heading>
</paragraph>
<paragraph id="8BE46E2E0256FFA7FF244D47FB027E41" blockId="28.[189,1216,1623,1650]" box="[189,1216,1623,1650]" pageId="28" pageNumber="29">
Cabeza Ballena Point,
<collectingRegion id="499FA0CC0256FFA7FE514D47FD6C7E42" box="[456,686,1623,1650]" country="Mexico" name="Baja California Sur" pageId="28" pageNumber="29">Baja California Sur</collectingRegion>
, Miramar Beach, Guaymas,
<collectingRegion id="499FA0CC0256FFA7FC644D48FB917E42" box="[1021,1107,1624,1650]" country="Mexico" name="Sonora" pageId="28" pageNumber="29">Sonora</collectingRegion>
,
<collectingCountry id="F34C2EBE0256FFA7FBC64D47FB7E7E41" box="[1119,1212,1623,1649]" name="Mexico" pageId="28" pageNumber="29">Mexico</collectingCountry>
.
</paragraph>
</subSubSection>
<subSubSection id="C3413DA50256FFA7FF244D89FEE27ED1" box="[189,288,1689,1761]" pageId="28" pageNumber="29" type="biology_ecology">
<paragraph id="8BE46E2E0256FFA7FF244D89FEDF7E83" blockId="28.[189,285,1689,1715]" box="[189,285,1689,1715]" pageId="28" pageNumber="29">
<heading id="D0ACD9420256FFA7FF244D89FEDF7E83" bold="true" box="[189,285,1689,1715]" fontSize="11" level="3" pageId="28" pageNumber="29" reason="3">
<emphasis id="B92FB23C0256FFA7FF244D89FEDF7E83" bold="true" box="[189,285,1689,1715]" pageId="28" pageNumber="29">Habitat</emphasis>
</heading>
</paragraph>
<paragraph id="8BE46E2E0256FFA7FF244DD7FEE27ED1" blockId="28.[189,288,1735,1761]" box="[189,288,1735,1761]" pageId="28" pageNumber="29">Benthic.</paragraph>
</subSubSection>
<subSubSection id="C3413DA50256FFA6FF244C19FC287A91" lastPageId="29" lastPageNumber="30" pageId="28" pageNumber="29" type="discussion">
<paragraph id="8BE46E2E0256FFA7FF244C19FEED7F13" blockId="28.[189,303,1801,1827]" box="[189,303,1801,1827]" pageId="28" pageNumber="29">
<heading id="D0ACD9420256FFA7FF244C19FEED7F13" bold="true" box="[189,303,1801,1827]" fontSize="11" level="3" pageId="28" pageNumber="29" reason="3">
<emphasis id="B92FB23C0256FFA7FF244C19FEED7F13" bold="true" box="[189,303,1801,1827]" pageId="28" pageNumber="29">Remarks</emphasis>
</heading>
</paragraph>
<paragraph id="8BE46E2E0256FFA7FF244C27FAB47F8C" blockId="28.[189,1398,1847,1980]" pageId="28" pageNumber="29">
<taxonomicName id="4C5B15AD0256FFA7FF244C27FE1D7F61" baseAuthorityName="Hyman" baseAuthorityYear="1953" box="[189,479,1847,1873]" family="Pseudostylochidae" genus="Ommatoplana" kingdom="Animalia" order="Polycladida" pageId="28" pageNumber="29" phylum="Platyhelminthes" rank="species" species="mexicana">
<emphasis id="B92FB23C0256FFA7FF244C27FE1D7F61" box="[189,479,1847,1873]" italics="true" pageId="28" pageNumber="29">Ommatoplana mexicana</emphasis>
</taxonomicName>
was described by
<bibRefCitation id="EFCA13DF0256FFA7FD5C4C28FC407F62" author="Hyman L. H." box="[709,898,1847,1874]" pageId="28" pageNumber="29" pagination="265 - 392" refId="ref29610" refString="Hyman L. H. 1953 a. The polyclad flatworm of the Pacific coast of North America. Bulletin of the American Museum of Natural History 100 (2): 265 - 392. Available from http: // hdl. handle. net / 2246 / 1028 [accessed 2 Aug. 2023]." type="journal article" year="1953">Hyman (1953a)</bibRefCitation>
as
<taxonomicName id="4C5B15AD0256FFA7FC364C27FB317F61" authorityName="Hyman" authorityYear="1953" box="[943,1267,1847,1873]" family="Latocestidae" genus="Mexistylochus" kingdom="Animalia" order="Polycladida" pageId="28" pageNumber="29" phylum="Platyhelminthes" rank="species" species="tuberculatus">
<emphasis id="B92FB23C0256FFA7FC364C27FB317F61" box="[943,1267,1847,1873]" italics="true" pageId="28" pageNumber="29">Mexistylochus tuberculatus</emphasis>
</taxonomicName>
. However, through a comprehensive review of the reproductive system of
<specimenCount id="9D5DA5A70256FFA7FC534C4BFBB97F45" box="[970,1147,1883,1909]" count="2" pageId="28" pageNumber="29" type="generic">two specimens</specimenCount>
from
<collectingRegion id="499FA0CC0256FFA7FB554C4BFADE7F45" box="[1228,1308,1883,1909]" country="Northern Mariana Islands" name="Saipan" pageId="28" pageNumber="29">Saipan</collectingRegion>
Island,
<collectingCountry id="F34C2EBE0256FFA7FF244C6EFE2D7FA8" box="[189,495,1918,1944]" name="Northern Mariana Islands" pageId="28" pageNumber="29">Northern Mariana Islands</collectingCountry>
(western Pacific),
<bibRefCitation id="EFCA13DF0256FFA7FD4A4C6EFC457FA9" author="Hyman L. H." box="[723,903,1918,1945]" pageId="28" pageNumber="29" pagination="65 - 82" refId="ref29742" refString="Hyman L. H. 1955 a. Some polyclad flatworms from Polynesia and Micronesia. Proceedings of the United States National Museum 105 (3352): 65 - 82. https: // doi. org / 10.5479 / si. 00963801.105 - 3352.65 Hyman L. H. 1955 b. The polyclad flatworms of the Pacific coast of North America. Additions and corrections. American Museum Novitates 1704: 1 - 11. Available from http: // hdl. handle. net / 2246 / 4856 [accessed 2 Aug. 2023]." type="journal article" year="1955">Hyman (1955a</bibRefCitation>
, 1955b) determined that these specimens were assignable to the genus
<taxonomicName id="4C5B15AD0256FFA7FD874CB1FD067F8B" authorityName="Laidlaw" authorityYear="1903" box="[542,708,1953,1979]" family="Pseudostylochidae" genus="Ommatoplana" kingdom="Animalia" order="Polycladida" pageId="28" pageNumber="29" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0256FFA7FD874CB1FD067F8B" box="[542,708,1953,1979]" italics="true" pageId="28" pageNumber="29">Ommatoplana</emphasis>
</taxonomicName>
, and that
<taxonomicName id="4C5B15AD0256FFA7FCA74CB1FC247F8B" authorityName="Hyman" authorityYear="1953" box="[830,998,1953,1979]" family="Latocestidae" genus="Mexistylochus" kingdom="Animalia" order="Polycladida" pageId="28" pageNumber="29" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0256FFA7FCA74CB1FC247F8B" box="[830,998,1953,1979]" italics="true" pageId="28" pageNumber="29">Mexistylochus</emphasis>
</taxonomicName>
is synonymous to
<taxonomicName id="4C5B15AD0256FFA7FB504CB1FAAD7F8B" authorityName="Laidlaw" authorityYear="1903" box="[1225,1391,1953,1979]" family="Pseudostylochidae" genus="Ommatoplana" kingdom="Animalia" order="Polycladida" pageId="28" pageNumber="29" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0256FFA7FB504CB1FAAD7F8B" box="[1225,1391,1953,1979]" italics="true" pageId="28" pageNumber="29">Ommatoplana</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8BE46E2E0257FFA6FF244A19FE317976" blockId="29.[189,1398,265,327]" pageId="29" pageNumber="30">
Initially
<bibRefCitation id="EFCA13DF0257FFA6FEBB4A1AFE1E7914" author="Hyman L. H." box="[290,476,265,292]" pageId="29" pageNumber="30" pagination="265 - 392" refId="ref29610" refString="Hyman L. H. 1953 a. The polyclad flatworm of the Pacific coast of North America. Bulletin of the American Museum of Natural History 100 (2): 265 - 392. Available from http: // hdl. handle. net / 2246 / 1028 [accessed 2 Aug. 2023]." type="journal article" year="1953">Hyman (1953a)</bibRefCitation>
did not place the species within the genus
<taxonomicName id="4C5B15AD0257FFA6FC424A19FB417913" authorityName="Laidlaw" authorityYear="1903" box="[987,1155,265,291]" family="Pseudostylochidae" genus="Ommatoplana" kingdom="Animalia" order="Polycladida" pageId="29" pageNumber="30" phylum="Platyhelminthes" rank="genus">
<emphasis id="B92FB23C0257FFA6FC424A19FB417913" box="[987,1155,265,291]" italics="true" pageId="29" pageNumber="30">Ommatoplana</emphasis>
</taxonomicName>
because the original specimen was incomplete.
</paragraph>
<paragraph id="8BE46E2E0257FFA6FF244A7EFC287A91" blockId="29.[188,1401,366,673]" pageId="29" pageNumber="30">
<taxonomicName id="4C5B15AD0257FFA6FF244A7EFE2279B7" baseAuthorityName="Hyman" baseAuthorityYear="1953" box="[189,480,366,392]" family="Pseudostylochidae" genus="Ommatoplana" kingdom="Animalia" order="Polycladida" pageId="29" pageNumber="30" phylum="Platyhelminthes" rank="species" species="mexicana">
<emphasis id="B92FB23C0257FFA6FF244A7EFE2279B7" box="[189,480,366,392]" italics="true" pageId="29" pageNumber="30">Ommatoplana mexicana</emphasis>
</taxonomicName>
is characterized by an oval body with brown dorsal coloration, with white blunt-ended protuberances (tubercles); marginal eyes distributed throughout the body margin, cerebral eyes, frontal eyes, and tentacular eyes arranged in a circular fashion and with approximately 30 eyes each. The elongate pharynx occupies two-thirds of the body and has approximately 20 pharyngeal lobes. The male reproductive system features a tripartite seminal vesicle, a prominent oval prostatic vesicle located horizontally to the seminal vesicle and an inert conical penis papilla protected by a penis sheath. The female reproductive system features a muscular ductus vaginalis with scalloped inner walls and a pore posterior to the female gonopore, a tubular female atrium, and an elongated vagina oriented towards the posterior region of the body and Langs vesicle is absent.
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