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<document id="367323C10E64D88ECF44BFC8C38A6028" ID-DOI="10.3897/zoologia.38.e65001" ID-ISSN="1984-4689" ID-Zenodo-Dep="13176246" ID-ZooBank="A417A7BD-9459-43AD-8FAE-42151BE7D733" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1722590657288" checkinUser="felipe" docAuthor="de Freitas, Álvaro J. B., Bezerra, Carine A. M., Meneses, Yuri C., Justo, Marcia Cristina N., Viana, Diego C. &amp; Cohen, Simone C." docDate="2021" docId="03BE87C49A2CFFA693CBD8AA2EACFA37" docLanguage="en" docName="Zoologia.38.e65001.pdf" docOrigin="Zoologia (e 65001) 38" docSource="http://dx.doi.org/10.3897/zoologia.38.e65001" docStyle="DocumentStyle:9D87517C92C8E430512793D922E147D4.1:Zoologia.2017-2020.journal_article" docStyleId="9D87517C92C8E430512793D922E147D4" docStyleName="Zoologia.2017-2020.journal_article" docStyleVersion="1" docTitle="Urocleidoides tocantinensis Freitas, Bezerra, Meneses, Justo, Viana &amp; Cohen, 2021, sp. nov." docType="treatment" docUuid="96A69E56-0836-4AC2-85A3-3C486B873C33" docUuidSource="ZooBank" docVersion="2" lastPageNumber="9" masterDocId="FF87FFBC9A29FFAE9047DC372C4AFFB3" masterDocTitle="Three new species of Urocleidoides (Monogenoidea: Dactylogyridae) parasitizing characiforms (Actinopterygii: Characiformes) in Tocantins River, states of Tocantins and Maranhão, and new record for U. triangulus in Guandu River, state of Rio de Janeiro, Brazil" masterLastPageNumber="11" masterPageNumber="1" pageNumber="6" updateTime="1722628250692" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title id="40838170294B5683B6044370C0EE592D">Three new species of Urocleidoides (Monogenoidea: Dactylogyridae) parasitizing characiforms (Actinopterygii: Characiformes) in Tocantins River, states of Tocantins and Maranhão, and new record for U. triangulus in Guandu River, state of Rio de Janeiro, Brazil</mods:title>
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<mods:namePart id="1350CE0787A5FAE4A1B3BBFCAEA78029">de Freitas, Álvaro J. B.</mods:namePart>
<mods:affiliation id="37B23059A689081B33068070F82AAE93">Laboratório de Helmintos Parasitos de Peixes, Instituto Oswaldo Cruz, FIOCRUZ. Avenida Brasil 4365,</mods:affiliation>
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<mods:namePart id="BB721A2B79249814F187B12F122E04CF">Bezerra, Carine A. M.</mods:namePart>
<mods:affiliation id="E680B7DA9FE70C950EA6B33D1330CC6F">Programa de Pós-Graduação em Ciência Animal, Universidade Estadual do Maranhão. Cidade Universitária Paulo</mods:affiliation>
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<mods:namePart id="127399DDF7233E6D0ADEA67C899AF3A9">Meneses, Yuri C.</mods:namePart>
<mods:affiliation id="5B3146C5ACD4273585E7BF97DBFB6143">Laboratório de Helmintos Parasitos de Peixes, Instituto Oswaldo Cruz, FIOCRUZ. Avenida Brasil 4365,</mods:affiliation>
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<mods:namePart id="54E4C998A4E42097048EE5DF65C68A65">Justo, Marcia Cristina N.</mods:namePart>
<mods:affiliation id="48D18D15049EA6FC83A29B2855A0A51E">Laboratório de Helmintos Parasitos de Peixes, Instituto Oswaldo Cruz, FIOCRUZ. Avenida Brasil 4365,</mods:affiliation>
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<mods:namePart id="ED3C61D1FDE4777601A8EF3C95980124">Viana, Diego C.</mods:namePart>
<mods:affiliation id="9086A259D79FAC028E94E3AD4B0E51B5">Núcleo de Estudos Morfofisiológicos Avançados, Universidade Estadual da Região Tocantina do Maranhão.</mods:affiliation>
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<mods:namePart id="84AD753325E0F81B9997875EF25A85BD">Cohen, Simone C.</mods:namePart>
<mods:affiliation id="E763362298E7089A0323773C0D5888CF">Laboratório de Helmintos Parasitos de Peixes, Instituto Oswaldo Cruz, FIOCRUZ. Avenida Brasil 4365,</mods:affiliation>
<mods:nameIdentifier id="D20F8E816A6D35B4B9A12DB470DA2AF1" type="email">marciajusto@ioc.fiocruz.br</mods:nameIdentifier>
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<mods:title id="D1BF1D574EC350D4FA9B2DA8614F74D8">Zoologia</mods:title>
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<mods:date id="BFA65BDEB1A5E674434ED56DF30C75F3">2021</mods:date>
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<mods:title id="6BBCFC825B3A7AE3D493BFDEBFACAC85">e 65001</mods:title>
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<mods:number id="9B1ABB2E7F3E09A30E128D42B207D2A3">2021-08-11</mods:number>
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<mods:number id="5E2961BC8023D502372ABACF78A34A79">38</mods:number>
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<mods:url id="501A7B192FBDDA9153F3E254A9707075">http://dx.doi.org/10.3897/zoologia.38.e65001</mods:url>
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<mods:classification id="83091BACA34B70B21FF062D2BA12DA14">journal article</mods:classification>
<mods:identifier id="CF31445C491748851B8AD96ABFD0D250" type="DOI">10.3897/zoologia.38.e65001</mods:identifier>
<mods:identifier id="77D781905FA7D2794C592F840140B7E3" type="ISSN">1984-4689</mods:identifier>
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<subSubSection id="C30D65599A2CFFAB93CBD8AA2978FB0B" box="[908,1330,1181,1208]" pageId="5" pageNumber="6" type="nomenclature">
<paragraph id="8BA836D29A2CFFAB93CBD8AA2978FB0B" blockId="5.[908,1330,1181,1208]" box="[908,1330,1181,1208]" pageId="5" pageNumber="6">
<heading id="D0E081BE9A2CFFAB93CBD8AA2978FB0B" box="[908,1330,1181,1208]" centered="true" fontSize="11" level="2" pageId="5" pageNumber="6" reason="5">
<taxonomicName id="4C174D519A2CFFAB93CBD8AA2883FB0B" ID-CoL="9H2GZ" authorityName="de Freitas &amp; Bezerra &amp; Meneses &amp; Justo &amp; Viana &amp; Cohen" authorityYear="2021" box="[908,1225,1181,1208]" class="Monogenea" family="Ancyrocephalidae" genus="Urocleidoides" kingdom="Animalia" order="Dactylogyridea" pageId="5" pageNumber="6" phylum="Platyhelminthes" rank="species" species="tocantinensis" status="sp. nov.">
<emphasis id="B963EAC09A2CFFAB93CBD8AA2883FB0B" box="[908,1225,1181,1208]" italics="true" pageId="5" pageNumber="6">Urocleidoides tocantinensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25057BB9A2CFFAB9496D8AA2978FB0B" box="[1233,1330,1181,1208]" pageId="5" pageNumber="6" rank="species">sp. nov.</taxonomicNameLabel>
</heading>
</paragraph>
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<subSubSection id="C30D65599A2CFFA69440D8F02EACFA37" lastPageId="8" lastPageNumber="9" pageId="5" pageNumber="6" type="description">
<paragraph id="8BA836D29A2CFFAB9440D8F028FCFB68" blockId="5.[1031,1206,1223,1243]" box="[1031,1206,1223,1243]" pageId="5" pageNumber="6">
<figureCitation id="132C2A579A2CFFAB9440D8F0283AFB68" box="[1031,1136,1223,1243]" captionStart="Figures 22–30" captionStartId="6.[159,226,1693,1713]" captionTargetBox="[327,1293,203,1678]" captionTargetId="figure-64@6.[322,1273,197,1679]" captionTargetPageId="6" captionText="Figures 22–30. Urocleidoides tocantinensis sp. nov. from Psectogaster amazonica from Tocantins River: (22) copulatory complex, ventral view; (23) vagina; (24) ventral bar; (25) vaginal sclerite; (26) dorsal bar; (27) ventral anchor; (28) dorsal anchor; (29) hook pairs 2–4, 6, 7; (30) hook pairs 1, 5. Scale bars: 22, 23, 27, 28 = 20 µm, 24–26, 29 = 10 µm, 30 = 5 µm." pageId="5" pageNumber="6">Figs 22–30</figureCitation>
,
<figureCitation id="132C2A579A2CFFAB943ED8F028FCFB68" box="[1145,1206,1223,1243]" captionStart="Figures 31–36" captionStartId="7.[151,218,1500,1520]" captionTargetBox="[336,1243,197,1486]" captionTargetId="figure-135@7.[336,1243,197,1486]" captionTargetPageId="7" captionText="Figures 31–36. Light photomicrographs of Urocleidoides spp.: (31, 32) Urocleidoides boulengerellae: (31) copulatory complex; (32) vaginal sclerite; (33, 34) Urocleidoides paratriangulus: (33) copulatory complex; (34) haptor; (35, 36) Urocleidoides tocantinensis: (35) copulatory complex; (36) vagina. Scale bars: 31–33, 35–36 = 20 µm, 34 = 40 µm." pageId="5" pageNumber="6">35, 36</figureCitation>
</paragraph>
<paragraph id="8BA836D29A2CFFAB936DD8C129DEFAB9" blockId="5.[807,1430,1270,1767]" box="[810,1428,1270,1290]" pageId="5" pageNumber="6">
http://zoobank.org/
<uuid id="FFB10C079A2CFFAB93A7D8C129DEFAB9" box="[992,1428,1270,1290]" pageId="5" pageNumber="6">96A69E56-0836-4AC2-85A3-3C486B873C33</uuid>
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<paragraph id="8BA836D29A2CFFAB9322D9232FB6FAF6" blockId="5.[807,1430,1270,1767]" pageId="5" pageNumber="6">
<typeStatus id="54AC88709A2CFFAB9322D9232FDFFA94" box="[869,917,1300,1319]" pageId="5" pageNumber="6">Type</typeStatus>
host.
<taxonomicName id="4C174D519A2CFFAB9390D9222F2EFAF6" authority="Eigenmann &amp; Eigenmann" authorityName="Eigenmann &amp; Eigenmann" authorityYear="1889" family="Curimatidae" genus="Psectrogaster" kingdom="Animalia" order="Characiformes" pageId="5" pageNumber="6" phylum="Chordata" rank="species" species="amazonica">
<emphasis id="B963EAC09A2CFFAB9390D92228F0FA94" box="[983,1210,1301,1319]" italics="true" pageId="5" pageNumber="6">Psectrogaster amazonica</emphasis>
Eigenmann &amp; Eigenmann
</taxonomicName>
(
<taxonomicName id="4C174D519A2CFFAB9336D9052FBBFAF6" authorityName="Gill" authorityYear="1858" box="[881,1009,1330,1349]" family="Curimatidae" kingdom="Animalia" order="Characiformes" pageId="5" pageNumber="6" phylum="Chordata" rank="family">Curimatidae</taxonomicName>
).
</paragraph>
<paragraph id="8BA836D29A2CFFAB9322D967291DFA32" blockId="5.[807,1430,1270,1767]" pageId="5" pageNumber="6">
<materialsCitation id="3B7F3C8F9A2CFFAB9322D9672819FAD0" box="[869,1107,1359,1379]" location="Tocantins" pageId="5" pageNumber="6" specimenCount="1" stateProvince="Tocantins" typeStatus="holotype">
<typeStatus id="54AC88709A2CFFAB9322D9672FDFFAD0" box="[869,917,1360,1379]" pageId="5" pageNumber="6">Type</typeStatus>
locality.
<collectingRegion id="49D3F8309A2CFFAB93B5D9672819FAD0" box="[1010,1107,1360,1379]" country="Brazil" name="Tocantins" pageId="5" pageNumber="6">Tocantins</collectingRegion>
</materialsCitation>
River (5°27’50’ S; 47°33’48’ W), close to the municipality of Embiral, state of
<collectingRegion id="49D3F8309A2CFFAB94ADD9592919FA32" box="[1258,1363,1390,1409]" country="Brazil" name="Maranhao" pageId="5" pageNumber="6">Maranhão</collectingRegion>
.
</paragraph>
<paragraph id="8BA836D29A2CFFAB9322D9BC2935F9E1" blockId="5.[807,1430,1270,1767]" pageId="5" pageNumber="6">
Other hosts and localities.
<taxonomicName id="4C174D519A2CFFAB9420D9BB290CFA2D" authorityName="Eigenmann &amp; Eigenmann" authorityYear="1889" box="[1127,1350,1420,1438]" family="Curimatidae" genus="Psectrogaster" kingdom="Animalia" order="Characiformes" pageId="5" pageNumber="6" phylum="Chordata" rank="species" species="amazonica">
<emphasis id="B963EAC09A2CFFAB9420D9BB290CFA2D" box="[1127,1350,1420,1438]" italics="true" pageId="5" pageNumber="6">Psectrogaster amazonica</emphasis>
</taxonomicName>
:
<collectingRegion id="49D3F8309A2CFFAB9515D9BB2F04FA0F" country="Brazil" name="Tocantins" pageId="5" pageNumber="6">Tocantins</collectingRegion>
River (5°32’08.6’ S; 47°29’41.1’ W), close to the urban perimeter of Imperatriz, state of
<collectingRegion id="49D3F8309A2CFFAB9461D9F028C5FA69" box="[1062,1167,1479,1498]" country="Brazil" name="Maranhao" pageId="5" pageNumber="6">Maranhão</collectingRegion>
.
<taxonomicName id="4C174D519A2CFFAB94D2D9F029D9FA69" box="[1173,1427,1479,1498]" family="Serrasalmidae" genus="Mylesinus" kingdom="Animalia" order="Characiformes" pageId="5" pageNumber="6" phylum="Chordata" rank="species" species="pauscisquamatus">
<emphasis id="B963EAC09A2CFFAB94D2D9F029D9FA69" box="[1173,1427,1479,1498]" italics="true" pageId="5" pageNumber="6">Mylesinus pauscisquamatus</emphasis>
</taxonomicName>
(
<taxonomicName id="4C174D519A2CFFAB9369D9D22FF1FA4B" box="[814,955,1509,1528]" family="Serrasalmidae" kingdom="Animalia" order="Characiformes" pageId="5" pageNumber="6" phylum="Chordata" rank="family">Serrasalmidae</taxonomicName>
): Arraias River (12°37’ 52.3’ S; 47°08’11.2’ W), close to the municipality of Babaçulândia, state of
<collectingRegion id="49D3F8309A2CFFAB9569DA3429DBF9A5" box="[1326,1425,1539,1558]" country="Brazil" name="Tocantins" pageId="5" pageNumber="6">Tocantins</collectingRegion>
; Farinha River (6°50’30.5’ S; 47°30’05.8’ W), close to the municipality of municipality of Estreito, state of
<collectingRegion id="49D3F8309A2CFFAB9489DA08297DF9E1" box="[1230,1335,1599,1618]" country="Brazil" name="Maranhao" pageId="5" pageNumber="6">Maranhão</collectingRegion>
,
<collectingCountry id="F30076429A2CFFAB9507DA082931F9E1" box="[1344,1403,1599,1618]" name="Brazil" pageId="5" pageNumber="6">Brazil</collectingCountry>
.
</paragraph>
<paragraph id="8BA836D29A2CFFAB9322DA6A28EFF954" blockId="5.[807,1430,1270,1767]" pageId="5" pageNumber="6">
Infestation parameters.
<taxonomicName id="4C174D519A2CFFAB9400DA6A296BF9DC" authorityName="Eigenmann &amp; Eigenmann" authorityYear="1889" box="[1095,1313,1629,1647]" family="Curimatidae" genus="Psectrogaster" kingdom="Animalia" order="Characiformes" pageId="5" pageNumber="6" phylum="Chordata" rank="species" species="amazonica">
<emphasis id="B963EAC09A2CFFAB9400DA6A296BF9DC" box="[1095,1313,1629,1647]" italics="true" pageId="5" pageNumber="6">Psectrogaster amazonica</emphasis>
</taxonomicName>
: total number of hosts: 97; prevalence: 9.3%; total number of parasites: 11; mean intensity: 1.22 ±0.44; range of infection: 1–2;
<taxonomicName id="4C174D519A2CFFAB957DDAAF2FF5F97A" authorityName="Jegu &amp; Santos" authorityYear="1988" family="Serrasalmidae" genus="Mylesinus" kingdom="Animalia" order="Characiformes" pageId="5" pageNumber="6" phylum="Chordata" rank="species" species="paucisquamatus">
<emphasis id="B963EAC09A2CFFAB957DDAAF2FF5F97A" italics="true" pageId="5" pageNumber="6">Mylesinus paucisquamatus</emphasis>
</taxonomicName>
: total number of hosts: 7; number of infected hosts: 2; total number of parasites: 12.
</paragraph>
<caption id="DF68665A9A2FFFA890D8DAAA2FB7F95E" pageId="6" pageNumber="7" startId="6.[159,226,1693,1713]" targetBox="[327,1293,203,1678]" targetPageId="6" targetType="figure">
<paragraph id="8BA836D29A2FFFA890D8DAAA2FB7F95E" blockId="6.[159,1438,1692,1773]" pageId="6" pageNumber="7">
Figures 22–30.
<taxonomicName id="4C174D519A2FFFA89174DAAB2E6CF903" authorityName="de Freitas &amp; Bezerra &amp; Meneses &amp; Justo &amp; Viana &amp; Cohen" authorityYear="2021" box="[307,550,1692,1712]" class="Monogenea" family="Ancyrocephalidae" genus="Urocleidoides" kingdom="Animalia" order="Dactylogyridea" pageId="6" pageNumber="7" phylum="Platyhelminthes" rank="species" species="tocantinensis" status="sp. nov.">
<emphasis id="B963EAC09A2FFFA89174DAAB2E6CF903" box="[307,550,1692,1712]" italics="true" pageId="6" pageNumber="7">Urocleidoides tocantinensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25057BB9A2FFFA8926BDAAA2E3DF902" box="[556,631,1693,1713]" pageId="6" pageNumber="7" rank="species">sp. nov.</taxonomicNameLabel>
from
<taxonomicName id="4C174D519A2FFFA892F5DAAA2FC6F903" authorityName="Eigenmann &amp; Eigenmann" authorityYear="1889" box="[690,908,1692,1713]" family="Serrasalmidae" genus="Psectogaster" kingdom="Animalia" order="Characiformes" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="amazonica">
<emphasis id="B963EAC09A2FFFA892F5DAAA2FC6F903" box="[690,908,1692,1713]" italics="true" pageId="6" pageNumber="7">Psectogaster amazonica</emphasis>
</taxonomicName>
from Tocantins River: (22) copulatory complex, ventral view; (23) vagina; (24) ventral bar; (25) vaginal sclerite; (26) dorsal bar; (27) ventral anchor; (28) dorsal anchor; (29) hook pairs 2–4, 6, 7; (30) hook pairs 1, 5. Scale bars: 22, 23, 27, 28 = 20 µm, 24–26, 29 = 10 µm, 30 = 5 µm.
</paragraph>
</caption>
<caption id="DF68665A9A2EFFA990D0D9EB2F78F99F" pageId="7" pageNumber="8" startId="7.[151,218,1500,1520]" targetBox="[336,1243,197,1486]" targetPageId="7" targetType="figure">
<paragraph id="8BA836D29A2EFFA990D0D9EB2F78F99F" blockId="7.[150,1429,1500,1580]" pageId="7" pageNumber="8">
Figures 31–36. Light photomicrographs of
<taxonomicName id="4C174D519A2EFFA9926FD9EB2E9AFA43" box="[552,720,1500,1520]" class="Monogenea" family="Ancyrocephalidae" genus="Urocleidoides" kingdom="Animalia" order="Dactylogyridea" pageId="7" pageNumber="8" phylum="Platyhelminthes" rank="species" species="undetermined">
<emphasis id="B963EAC09A2EFFA9926FD9EB2ED4FA43" box="[552,670,1500,1520]" italics="true" pageId="7" pageNumber="8">Urocleidoides</emphasis>
spp.
</taxonomicName>
: (31, 32)
<taxonomicName id="4C174D519A2EFFA99360D9EB286EFA43" authorityName="de Freitas &amp; Bezerra &amp; Meneses &amp; Justo &amp; Viana &amp; Cohen" authorityYear="2021" box="[807,1060,1500,1520]" class="Monogenea" family="Ancyrocephalidae" genus="Urocleidoides" kingdom="Animalia" order="Dactylogyridea" pageId="7" pageNumber="8" phylum="Platyhelminthes" rank="species" species="boulengerellae">
<emphasis id="B963EAC09A2EFFA99360D9EB286EFA43" box="[807,1060,1500,1520]" italics="true" pageId="7" pageNumber="8">Urocleidoides boulengerellae</emphasis>
</taxonomicName>
: (31) copulatory complex; (32) vaginal sclerite; (33, 34)
<taxonomicName id="4C174D519A2EFFA99170D9CD2E7CF9BD" authorityName="de Freitas &amp; Bezerra &amp; Meneses &amp; Justo &amp; Viana &amp; Cohen" authorityYear="2021" box="[311,566,1530,1550]" class="Monogenea" family="Ancyrocephalidae" genus="Urocleidoides" kingdom="Animalia" order="Dactylogyridea" pageId="7" pageNumber="8" phylum="Platyhelminthes" rank="species" species="paratriangulus">
<emphasis id="B963EAC09A2EFFA99170D9CD2E7CF9BD" box="[311,566,1530,1550]" italics="true" pageId="7" pageNumber="8">Urocleidoides paratriangulus</emphasis>
</taxonomicName>
: (33) copulatory complex; (34) haptor; (35, 36)
<taxonomicName id="4C174D519A2EFFA99443D9CD28BFF9BD" authorityName="de Freitas &amp; Bezerra &amp; Meneses &amp; Justo &amp; Viana &amp; Cohen" authorityYear="2021" box="[1028,1269,1530,1550]" class="Monogenea" family="Ancyrocephalidae" genus="Urocleidoides" kingdom="Animalia" order="Dactylogyridea" pageId="7" pageNumber="8" phylum="Platyhelminthes" rank="species" species="tocantinensis">
<emphasis id="B963EAC09A2EFFA99443D9CD28BFF9BD" box="[1028,1269,1530,1550]" italics="true" pageId="7" pageNumber="8">Urocleidoides tocantinensis</emphasis>
</taxonomicName>
: (35) copulatory complex; (36) vagina. Scale bars: 31–33, 35–36 = 20 µm, 34 = 40 µm.
</paragraph>
</caption>
<paragraph id="8BA836D29A2EFFA99093DA532E1FF900" blockId="7.[151,772,1636,1775]" pageId="7" pageNumber="8">
Deposited material.
<taxonomicName id="4C174D519A2EFFA991EEDA522EDEF9C4" authorityName="Eigenmann &amp; Eigenmann" authorityYear="1889" box="[425,660,1637,1655]" family="Curimatidae" genus="Psectrogaster" kingdom="Animalia" order="Characiformes" pageId="7" pageNumber="8" phylum="Chordata" rank="species" species="amazonica">
<emphasis id="B963EAC09A2EFFA991EEDA522EDEF9C4" box="[425,660,1637,1655]" italics="true" pageId="7" pageNumber="8">Psectrogaster amazonica</emphasis>
</taxonomicName>
:
<typeStatus id="54AC88709A2EFFA992E3DA532F48F9CB" box="[676,770,1636,1656]" pageId="7" pageNumber="8" type="holotype">Holotype</typeStatus>
CHIOC 39575:
<typeStatus id="54AC88709A2EFFA99171DAB52DDFF926" box="[310,405,1666,1685]" pageId="7" pageNumber="8" type="paratype">paratypes</typeStatus>
39577, 39578; INPA 838;
<taxonomicName id="4C174D519A2EFFA992E0DAB52D67F900" authorityName="Jegu &amp; Santos" authorityYear="1988" family="Serrasalmidae" genus="Mylesinus" kingdom="Animalia" order="Characiformes" pageId="7" pageNumber="8" phylum="Chordata" rank="species" species="paucisquamatus">
<emphasis id="B963EAC09A2EFFA992E0DAB52D67F900" italics="true" pageId="7" pageNumber="8">Mylesinus paucisquamatus</emphasis>
</taxonomicName>
: CHIOC 39576a-b, INPA 839.
</paragraph>
<paragraph id="8BA836D29A2EFFA69093DA892E18FB8F" blockId="7.[151,772,1636,1775]" lastBlockId="8.[157,781,198,1412]" lastPageId="8" lastPageNumber="9" pageId="7" pageNumber="8">
Description. Based on
<specimenCount id="9D11FD5B9A2EFFA991F0DA892E0BF962" box="[439,577,1726,1745]" count="15" pageId="7" pageNumber="8" type="generic">15 specimens</specimenCount>
: 2 mounted in Gomori’s trichrome and 13 mounted in Hoyers’ medium. Body fusiform, robust, 200–317 (278; n = 8) long by 68–103 (89; n = 9). Cephalic lobes poorly developed; two pairs of eyespots, posterior pair larger than anterior; accessory chromatic granules dispersed in the cephalic region. Pharynx spherical; esophagus short; two intestinal caeca, posteriorly confluent to gonads, lacking diverticula. Haptor sub-hexagonal, 62–86 (68; n = 12) wide. Ventral anchor with developed superficial root and inconspicuous deep root, evenly curved shaft and point, 21–44 (33; n = 22) long and base 13–20 (17; n = 22) (
<figureCitation id="132C2A579A21FFA6926EDD282E26FE80" box="[553,620,287,307]" captionStart="Figures 22–30" captionStartId="6.[159,226,1693,1713]" captionTargetBox="[327,1293,203,1678]" captionTargetId="figure-64@6.[322,1273,197,1679]" captionTargetPageId="6" captionText="Figures 22–30. Urocleidoides tocantinensis sp. nov. from Psectogaster amazonica from Tocantins River: (22) copulatory complex, ventral view; (23) vagina; (24) ventral bar; (25) vaginal sclerite; (26) dorsal bar; (27) ventral anchor; (28) dorsal anchor; (29) hook pairs 2–4, 6, 7; (30) hook pairs 1, 5. Scale bars: 22, 23, 27, 28 = 20 µm, 24–26, 29 = 10 µm, 30 = 5 µm." pageId="8" pageNumber="9">Fig. 27</figureCitation>
). Dorsal anchor, smaller than ventral, with well-defined and long superficial root, shorter deep root, evenly curved shaft and robust point, passing from the level of tip of superficial root, 15–29 (22; n = 18) long and base 10–19 (13; n = 16) (
<figureCitation id="132C2A579A21FFA691FCDDA02E4AFE19" box="[443,512,407,427]" captionStart="Figures 22–30" captionStartId="6.[159,226,1693,1713]" captionTargetBox="[327,1293,203,1678]" captionTargetId="figure-64@6.[322,1273,197,1679]" captionTargetPageId="6" captionText="Figures 22–30. Urocleidoides tocantinensis sp. nov. from Psectogaster amazonica from Tocantins River: (22) copulatory complex, ventral view; (23) vagina; (24) ventral bar; (25) vaginal sclerite; (26) dorsal bar; (27) ventral anchor; (28) dorsal anchor; (29) hook pairs 2–4, 6, 7; (30) hook pairs 1, 5. Scale bars: 22, 23, 27, 28 = 20 µm, 24–26, 29 = 10 µm, 30 = 5 µm." pageId="8" pageNumber="9">Fig. 28</figureCitation>
). Ventral bar straight, with extremities directed toward posterior extremity, with a median projection arising from the middle portion of the bar, 23–34 (30; n = 9) long (
<figureCitation id="132C2A579A21FFA69101DDC72DC6FDB7" box="[326,396,496,516]" captionStart="Figures 22–30" captionStartId="6.[159,226,1693,1713]" captionTargetBox="[327,1293,203,1678]" captionTargetId="figure-64@6.[322,1273,197,1679]" captionTargetPageId="6" captionText="Figures 22–30. Urocleidoides tocantinensis sp. nov. from Psectogaster amazonica from Tocantins River: (22) copulatory complex, ventral view; (23) vagina; (24) ventral bar; (25) vaginal sclerite; (26) dorsal bar; (27) ventral anchor; (28) dorsal anchor; (29) hook pairs 2–4, 6, 7; (30) hook pairs 1, 5. Scale bars: 22, 23, 27, 28 = 20 µm, 24–26, 29 = 10 µm, 30 = 5 µm." pageId="8" pageNumber="9">Fig. 24</figureCitation>
). Dorsal bar straight, 25–41 (30; n = 6) long (
<figureCitation id="132C2A579A21FFA69090DE392D50FD92" box="[215,282,526,546]" captionStart="Figures 22–30" captionStartId="6.[159,226,1693,1713]" captionTargetBox="[327,1293,203,1678]" captionTargetId="figure-64@6.[322,1273,197,1679]" captionTargetPageId="6" captionText="Figures 22–30. Urocleidoides tocantinensis sp. nov. from Psectogaster amazonica from Tocantins River: (22) copulatory complex, ventral view; (23) vagina; (24) ventral bar; (25) vaginal sclerite; (26) dorsal bar; (27) ventral anchor; (28) dorsal anchor; (29) hook pairs 2–4, 6, 7; (30) hook pairs 1, 5. Scale bars: 22, 23, 27, 28 = 20 µm, 24–26, 29 = 10 µm, 30 = 5 µm." pageId="8" pageNumber="9">Fig. 26</figureCitation>
). Marginal hooks present, dissimilar in shape: pairs 1 and 5 with straight shank, erected thumb and curved point; filamentous hook (FH) loop about 1/3 of shank length (
<figureCitation id="132C2A579A21FFA692FBDE7D2F4AFDEE" box="[700,768,586,606]" captionStart="Figures 22–30" captionStartId="6.[159,226,1693,1713]" captionTargetBox="[327,1293,203,1678]" captionTargetId="figure-64@6.[322,1273,197,1679]" captionTargetPageId="6" captionText="Figures 22–30. Urocleidoides tocantinensis sp. nov. from Psectogaster amazonica from Tocantins River: (22) copulatory complex, ventral view; (23) vagina; (24) ventral bar; (25) vaginal sclerite; (26) dorsal bar; (27) ventral anchor; (28) dorsal anchor; (29) hook pairs 2–4, 6, 7; (30) hook pairs 1, 5. Scale bars: 22, 23, 27, 28 = 20 µm, 24–26, 29 = 10 µm, 30 = 5 µm." pageId="8" pageNumber="9">Fig. 30</figureCitation>
), pairs 2–4, 6, 7 with dilated shank composed of two subunits, erected thumb and point, FH loop about 1/3 shank length (
<figureCitation id="132C2A579A21FFA692AFDEB12CF3FD04" captionStart="Figures 22–30" captionStartId="6.[159,226,1693,1713]" captionTargetBox="[327,1293,203,1678]" captionTargetId="figure-64@6.[322,1273,197,1679]" captionTargetPageId="6" captionText="Figures 22–30. Urocleidoides tocantinensis sp. nov. from Psectogaster amazonica from Tocantins River: (22) copulatory complex, ventral view; (23) vagina; (24) ventral bar; (25) vaginal sclerite; (26) dorsal bar; (27) ventral anchor; (28) dorsal anchor; (29) hook pairs 2–4, 6, 7; (30) hook pairs 1, 5. Scale bars: 22, 23, 27, 28 = 20 µm, 24–26, 29 = 10 µm, 30 = 5 µm." pageId="8" pageNumber="9">Fig. 29</figureCitation>
). Pair 1, 9–16 (13; n = 15); pair 2, 15–27 (19; n = 19); pair 3, 14–22 (18; n = 18); pair 4, 15–27 (17; n = 17); pair 5, 10–15 (13; n = 14), pair 6, 15–25 (20; n = 6); pair 7, 13–25 (20; n = 14). Copulatory complex composed of male copulatory organ (MCO), which is a straight tube, 23–40 (33; n = 14) long and by bifurcated accessory piece, serving as guide to MCO; accessory piece 41–70 (53; n = 15) long (
<figureCitation id="132C2A579A21FFA69184DF602E40FCD9" box="[451,522,855,875]" captionStart="Figures 22–30" captionStartId="6.[159,226,1693,1713]" captionTargetBox="[327,1293,203,1678]" captionTargetId="figure-64@6.[322,1273,197,1679]" captionTargetPageId="6" captionText="Figures 22–30. Urocleidoides tocantinensis sp. nov. from Psectogaster amazonica from Tocantins River: (22) copulatory complex, ventral view; (23) vagina; (24) ventral bar; (25) vaginal sclerite; (26) dorsal bar; (27) ventral anchor; (28) dorsal anchor; (29) hook pairs 2–4, 6, 7; (30) hook pairs 1, 5. Scale bars: 22, 23, 27, 28 = 20 µm, 24–26, 29 = 10 µm, 30 = 5 µm." pageId="8" pageNumber="9">Figs 22</figureCitation>
,
<figureCitation id="132C2A579A21FFA69255DF602E67FCD9" box="[530,557,855,874]" captionStart="Figures 31–36" captionStartId="7.[151,218,1500,1520]" captionTargetBox="[336,1243,197,1486]" captionTargetId="figure-135@7.[336,1243,197,1486]" captionTargetPageId="7" captionText="Figures 31–36. Light photomicrographs of Urocleidoides spp.: (31, 32) Urocleidoides boulengerellae: (31) copulatory complex; (32) vaginal sclerite; (33, 34) Urocleidoides paratriangulus: (33) copulatory complex; (34) haptor; (35, 36) Urocleidoides tocantinensis: (35) copulatory complex; (36) vagina. Scale bars: 31–33, 35–36 = 20 µm, 34 = 40 µm." pageId="8" pageNumber="9">35</figureCitation>
). Gonads overlapping. Vaginal pore sinistral, vaginal vestibule, with a membranous cap at the aperture, tubular, expanded, 28–41 (35; n = 15), giving rise to vaginal canal (
<figureCitation id="132C2A579A21FFA69135DF872DF1FC77" box="[370,443,944,964]" captionStart="Figures 22–30" captionStartId="6.[159,226,1693,1713]" captionTargetBox="[327,1293,203,1678]" captionTargetId="figure-64@6.[322,1273,197,1679]" captionTargetPageId="6" captionText="Figures 22–30. Urocleidoides tocantinensis sp. nov. from Psectogaster amazonica from Tocantins River: (22) copulatory complex, ventral view; (23) vagina; (24) ventral bar; (25) vaginal sclerite; (26) dorsal bar; (27) ventral anchor; (28) dorsal anchor; (29) hook pairs 2–4, 6, 7; (30) hook pairs 1, 5. Scale bars: 22, 23, 27, 28 = 20 µm, 24–26, 29 = 10 µm, 30 = 5 µm." pageId="8" pageNumber="9">Figs 23</figureCitation>
,
<figureCitation id="132C2A579A21FFA69183DF862D95FC77" box="[452,479,945,964]" captionStart="Figures 31–36" captionStartId="7.[151,218,1500,1520]" captionTargetBox="[336,1243,197,1486]" captionTargetId="figure-135@7.[336,1243,197,1486]" captionTargetPageId="7" captionText="Figures 31–36. Light photomicrographs of Urocleidoides spp.: (31, 32) Urocleidoides boulengerellae: (31) copulatory complex; (32) vaginal sclerite; (33, 34) Urocleidoides paratriangulus: (33) copulatory complex; (34) haptor; (35, 36) Urocleidoides tocantinensis: (35) copulatory complex; (36) vagina. Scale bars: 31–33, 35–36 = 20 µm, 34 = 40 µm." pageId="8" pageNumber="9">36</figureCitation>
). Vaginal sclerite composed of a grooved rod, distal hook and a long subterminal projection, 22–35 (27; n = 11) (
<figureCitation id="132C2A579A21FFA6912CDFDB2DF8FC4C" box="[363,434,1004,1024]" captionStart="Figures 22–30" captionStartId="6.[159,226,1693,1713]" captionTargetBox="[327,1293,203,1678]" captionTargetId="figure-64@6.[322,1273,197,1679]" captionTargetPageId="6" captionText="Figures 22–30. Urocleidoides tocantinensis sp. nov. from Psectogaster amazonica from Tocantins River: (22) copulatory complex, ventral view; (23) vagina; (24) ventral bar; (25) vaginal sclerite; (26) dorsal bar; (27) ventral anchor; (28) dorsal anchor; (29) hook pairs 2–4, 6, 7; (30) hook pairs 1, 5. Scale bars: 22, 23, 27, 28 = 20 µm, 24–26, 29 = 10 µm, 30 = 5 µm." pageId="8" pageNumber="9">Fig. 25</figureCitation>
). Eggs, Mehlis’ glands and ootype not observed.Vitelline follicles distributed throughout the body, except in the region of reproductive organs.
</paragraph>
<paragraph id="8BA836D29A21FFA6909CD8712D6CFBC4" blockId="8.[157,781,198,1412]" pageId="8" pageNumber="9">
Etymology. The specific name refers to the locality,
<collectingRegion id="49D3F8309A21FFA692ACD8712CADFBC4" country="Brazil" name="Tocantins" pageId="8" pageNumber="9">Tocantins</collectingRegion>
River.
</paragraph>
<paragraph id="8BA836D29A21FFA6909CD8B52EACFA37" blockId="8.[157,781,198,1412]" pageId="8" pageNumber="9">
Remarks.
<taxonomicName id="4C174D519A21FFA6917ED8B52E66FB27" authorityName="de Freitas &amp; Bezerra &amp; Meneses &amp; Justo &amp; Viana &amp; Cohen" authorityYear="2021" box="[313,556,1154,1173]" class="Monogenea" family="Ancyrocephalidae" genus="Urocleidoides" kingdom="Animalia" order="Dactylogyridea" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="tocantinensis" status="sp. nov.">
<emphasis id="B963EAC09A21FFA6917ED8B52E66FB27" box="[313,556,1154,1173]" italics="true" pageId="8" pageNumber="9">Urocleidoides tocantinensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A25057BB9A21FFA69268D8B52E30FB26" box="[559,634,1154,1173]" pageId="8" pageNumber="9" rank="species">sp. nov.</taxonomicNameLabel>
resembles
<taxonomicName id="4C174D519A21FFA692A6D8B52D6BFB62" authority="Zago, Yamada, Yamada, Franceschini, Bongiovani &amp; Silva, 2020" authorityName="Zago, Yamada, Yamada, Franceschini, Bongiovani &amp; Silva" authorityYear="2020" class="Monogenea" family="Ancyrocephalidae" genus="Urocleidoides" kingdom="Animalia" order="Dactylogyridea" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="falxus">
<emphasis id="B963EAC09A21FFA692A6D8B52D65FB00" italics="true" pageId="8" pageNumber="9">Urocleidoides falxus</emphasis>
<bibRefCitation id="EF864B239A21FFA69174D8972D6BFB62" author="Zago AC &amp; Yamada FH &amp; Yamada POF &amp; Franceschini L. &amp; Bongiovani MF &amp; Silva RJ" pageId="8" pageNumber="9" refId="ref8746" refString="Zago AC, Yamada FH, Yamada POF, Franceschini L. Bongiovani MF, Silva RJ (2020) Seven new species of Urocleidoides (Monogenea: Dactylogyridae) from Brazilian fishes supported by morphological and molecular data. Parasitology Research, https: // doi. org / 10.1007 / s 00436 - 020 - 06831 - z" type="book" year="2020">Zago, Yamada, Yamada, Franceschini, Bongiovani &amp; Silva, 2020</bibRefCitation>
</taxonomicName>
by the absence of coils on the MCO and
<taxonomicName id="4C174D519A21FFA69283D88A2E4CFB5D" authority="Rosin &amp; Timi, 2016" authorityName="Rosin &amp; Timi" authorityYear="2016" class="Monogenea" family="Ancyrocephalidae" genus="Urocleidoides" kingdom="Animalia" order="Dactylogyridea" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="surianoae">
<emphasis id="B963EAC09A21FFA69283D88A2D73FB5D" italics="true" pageId="8" pageNumber="9">Urocleidoides surianoae</emphasis>
Rosin &amp; Timi,
<quantity id="4CEF9B379A21FFA69192D8EC2E4CFB5D" box="[469,518,1243,1262]" metricMagnitude="1" metricUnit="m" metricValue="5.12064" pageId="8" pageNumber="9" unit="in" value="2016.0">2016</quantity>
</taxonomicName>
in the shape of accessory piece, but differs in the morphology of the MCO (MCO reverse J-shaped, with expanded proximal end in
<taxonomicName id="4C174D519A21FFA69216D92F2E82FA99" authorityName="Rosin &amp; Timi" authorityYear="2016" box="[593,712,1304,1322]" class="Monogenea" family="Ancyrocephalidae" genus="Urocleidoides" kingdom="Animalia" order="Dactylogyridea" pageId="8" pageNumber="9" phylum="Platyhelminthes" rank="species" species="surianoae">
<emphasis id="B963EAC09A21FFA69216D92F2E82FA99" box="[593,712,1304,1322]" italics="true" pageId="8" pageNumber="9">U. surianoae</emphasis>
</taxonomicName>
and a straight tube in the new species). The new species differs from all other species of the genus by the morphology of the vagina, which present a vaginal vestibule with a membranous cap.
</paragraph>
</subSubSection>
</treatment>
</document>
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