treatments-xml/data/03/EB/89/03EB8977FF8EFFFFC8FAFB1EFC00FB56.xml

<document id="4B5F793A6A0582C210D54563C2B04575" ID-DOI="10.5281/zenodo.281880" ID-GBIF-Dataset="ece9e571-954a-4344-bc61-c755be07700c" ID-ISSN="1175-5326" ID-Zenodo-Dep="281880" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460503001210" checkinUser="plazi" docAuthor="León, Pérez-Ponce De &amp; García-Magaña, Leticia" docDate="2012" docId="03EB8977FF8EFFFFC8FAFB1EFC00FB56" docLanguage="en" docName="zt03407p048.pdf" docOrigin="Zootaxa 3407" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Homalometron mesoamericanum León &amp; García-Magaña, 2012, n. sp." docType="treatment" docVersion="7" lastPageNumber="44" masterDocId="FFD2F10FFF8BFFF8C86DFFEAFFC2FFC8" masterDocTitle="Morphological and molecular evidences for the existence of two new species of Homalometron (Digenea: Apocreadiidae), parasites of cichlids (Osteichthyes: Cichlidae)" masterLastPageNumber="48" masterPageNumber="37" pageNumber="42" updateTime="1698312241545" updateUser="plazi">
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<mods:title id="CE1F1475629DCC026C785F04037468D5">Morphological and molecular evidences for the existence of two new species of Homalometron (Digenea: Apocreadiidae), parasites of cichlids (Osteichthyes: Cichlidae)</mods:title>
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<mods:namePart id="7C09E07E23BCA0065D49DF341D83750E">León, Pérez-Ponce De</mods:namePart>
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<mods:namePart id="87F81C1E7135793C7D2759D12062FF69">García-Magaña, Leticia</mods:namePart>
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<mods:date id="0AABA905F06A01A7D2011155E9F64C5C">2012</mods:date>
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<treatment id="03EB8977FF8EFFFFC8FAFB1EFC00FB56" ID-DOI="http://doi.org/10.5281/zenodo.6179132" ID-GBIF-Taxon="119521636" ID-Zenodo-Dep="6179132" LSID="urn:lsid:plazi:treatment:03EB8977FF8EFFFFC8FAFB1EFC00FB56" httpUri="http://treatment.plazi.org/id/03EB8977FF8EFFFFC8FAFB1EFC00FB56" lastPageId="7" lastPageNumber="44" pageId="5" pageNumber="42">
<subSubSection id="C3586BEAFF8EFFFDC8FAFB1EFE90FAE6" pageId="5" pageNumber="42" type="nomenclature">
<paragraph id="8BFD3861FF8EFFFDC8FAFB1EFDB5FAC5" blockId="5.[151,631,1267,1327]" box="[151,631,1267,1294]" pageId="5" pageNumber="42">
<heading id="D0B58F0DFF8EFFFDC8FAFB1EFDB5FAC5" bold="true" box="[151,631,1267,1294]" fontSize="11" level="1" pageId="5" pageNumber="42" reason="1">
<emphasis id="B936E473FF8EFFFDC8FAFB1EFDB5FAC5" bold="true" box="[151,631,1267,1294]" pageId="5" pageNumber="42">
<taxonomicName id="4C4243E2FF8EFFFDC8FAFB1EFDEFFAC6" ID-CoL="849DW" box="[151,557,1268,1294]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="5" pageNumber="42" phylum="Platyhelminthes" rank="species" species="mesoamericanum" status="sp. nov.">
<emphasis id="B936E473FF8EFFFDC8FAFB1EFDEFFAC6" bold="true" box="[151,557,1268,1294]" italics="true" pageId="5" pageNumber="42">Homalometron mesoamericanum</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2055908FF8EFFFDCA59FB19FDB5FAC5" box="[564,631,1267,1293]" pageId="5" pageNumber="42" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8BFD3861FF8EFFFDC8FAFAFCFE90FAE6" blockId="5.[151,631,1267,1327]" box="[151,338,1302,1327]" pageId="5" pageNumber="42">
(
<figureCitation id="137924E4FF8EFFFDC8F2FAFCFEC8FAE7" box="[159,266,1302,1327]" captionStart="FIGURE 3. A" captionStartId="6.[151,249,1820,1843]" captionTargetBox="[180,1435,198,1782]" captionTargetId="figure@6.[151,1436,165,1799]" captionTargetPageId="6" captionText="FIGURE 3. A. Homalometron masoamericanum n. sp. Holotype (gravid specimen). Ventral view. Scale bar = 500 Μm. B. Anterior end showing compact eye-spots. Scale bar = 75 Μm. C) Detail of the female genitalia. Scale bar = 100 Μm." httpUri="https://zenodo.org/record/281883/files/figure.png" pageId="5" pageNumber="42">Figs. 3 A</figureCitation>
, B, C)
</paragraph>
</subSubSection>
<subSubSection id="C3586BEAFF8EFFFDC8FAFAB5FCFEF972" pageId="5" pageNumber="42" type="materials_examined">
<paragraph id="8BFD3861FF8EFFFDC8FAFAB5FDDCFABE" blockId="5.[151,1437,1374,2010]" box="[151,542,1374,1399]" pageId="5" pageNumber="42">
<emphasis id="B936E473FF8EFFFDC8FAFAB5FECDFABF" bold="true" box="[151,271,1375,1399]" pageId="5" pageNumber="42">
<typeStatus id="54F986C3FF8EFFFDC8FAFAB5FF12FABF" box="[151,208,1375,1399]" pageId="5" pageNumber="42">Type</typeStatus>
host.
</emphasis>
<taxonomicName id="4C4243E2FF8EFFFDC975FAB5FDD8FABE" authority="Hubbs" authorityName="Hubbs" box="[280,538,1374,1398]" family="Cichlidae" genus="Vieja" higherTaxonomySource="CoL" kingdom="Animalia" order="Perciformes" pageId="5" pageNumber="42" phylum="Chordata" rank="species" species="synspila">
<emphasis id="B936E473FF8EFFFDC975FAB5FE76FABE" box="[280,436,1374,1398]" italics="true" pageId="5" pageNumber="42">Vieja synspila</emphasis>
(Hubbs)
</taxonomicName>
.
</paragraph>
<paragraph id="8BFD3861FF8EFFFDC8AAFA68FCC6FA52" blockId="5.[151,1437,1374,2010]" box="[199,772,1410,1435]" pageId="5" pageNumber="42">
<emphasis id="B936E473FF8EFFFDC8AAFA68FE9BFA53" bold="true" box="[199,345,1410,1435]" pageId="5" pageNumber="42">Other hosts.</emphasis>
<taxonomicName id="4C4243E2FF8EFFFDC90DFA69FCC3FA52" authority="Gunther" authorityName="Gunther" box="[352,769,1410,1435]" class="Actinopterygii" family="Cichlidae" genus="Cichlasoma" kingdom="Animalia" order="Perciformes" pageId="5" pageNumber="42" phylum="Chordata" rank="species" species="urophthalmus">
<emphasis id="B936E473FF8EFFFDC90DFA69FD4AFA53" box="[352,648,1411,1435]" italics="true" pageId="5" pageNumber="42">Cichlasoma urophthalmus</emphasis>
(Günther)
</taxonomicName>
.
</paragraph>
<paragraph id="8BFD3861FF8EFFFDC8AAFA4DFC3FFA76" blockId="5.[151,1437,1374,2010]" box="[199,1021,1446,1471]" pageId="5" pageNumber="42">
<emphasis id="B936E473FF8EFFFDC8AAFA4DFEA7FA77" bold="true" box="[199,357,1446,1471]" pageId="5" pageNumber="42">
<typeStatus id="54F986C3FF8EFFFDC8AAFA4DFEC0FA77" box="[199,258,1447,1471]" pageId="5" pageNumber="42">Type</typeStatus>
locality.
</emphasis>
Laguna Santa Anita, Tabasco 
<geoCoordinate id="EE765EA6FF8EFFFDCAD6FA4CFC90FA76" box="[699,850,1446,1470]" direction="north" orientation="latitude" pageId="5" pageNumber="42" precision="15" value="18.368055">18°22’05’’ N</geoCoordinate>
, 
<geoCoordinate id="EE765EA6FF8EFFFDCB30FA4CFC3AFA76" box="[861,1016,1446,1470]" direction="west" orientation="longitude" pageId="5" pageNumber="42" precision="15" value="-92.86667">92°52’00’’ W</geoCoordinate>
.
</paragraph>
<paragraph id="8BFD3861FF8EFFFDC8AAFA20FEAFF9CE" blockId="5.[151,1437,1374,2010]" pageId="5" pageNumber="42">
<emphasis id="B936E473FF8EFFFDC8AAFA20FE44FA2B" bold="true" box="[199,390,1482,1507]" pageId="5" pageNumber="42">Other localities.</emphasis>
El Espino, Tabasco 
<geoCoordinate id="EE765EA6FF8EFFFDCA03FA20FCC4FA2A" box="[622,774,1482,1506]" direction="north" orientation="latitude" pageId="5" pageNumber="42" precision="15" value="18.246944">18°14’49’’ N</geoCoordinate>
, 
<geoCoordinate id="EE765EA6FF8EFFFDCB7FFA20FC6CFA2A" box="[786,942,1482,1506]" direction="west" orientation="longitude" pageId="5" pageNumber="42" precision="15" value="-95.833336">95°50’00’’ W</geoCoordinate>
. Lago Macanche, 
<collectingCountry id="F35578F1FF8EFFFDCC10FA20FB34FA2A" box="[1149,1270,1482,1506]" name="Guatemala" pageId="5" pageNumber="42">Guatemala</collectingCountry>
<geoCoordinate id="EE765EA6FF8EFFFDCC93FA20FF6CF9CE" direction="north" orientation="latitude" pageId="5" pageNumber="42" precision="1" value="16.9725">16º 58´21.0´´ N</geoCoordinate>
, 
<geoCoordinate id="EE765EA6FF8EFFFDC8D4FA04FEABF9CE" box="[185,361,1518,1542]" direction="west" orientation="longitude" pageId="5" pageNumber="42" precision="15" value="-89.64">89 º 38´24´´ W</geoCoordinate>
.
</paragraph>
<paragraph id="8BFD3861FF8EFFFDC8AAF9F8FE35F9E2" blockId="5.[151,1437,1374,2010]" box="[199,503,1554,1579]" pageId="5" pageNumber="42">
<emphasis id="B936E473FF8EFFFDC8AAF9F8FE4BF9E3" bold="true" box="[199,393,1554,1579]" pageId="5" pageNumber="42">Site of infection.</emphasis>
Intestine.
</paragraph>
<paragraph id="8BFD3861FF8EFFFDC8AAF9DDFDC3F9BA" blockId="5.[151,1437,1374,2010]" pageId="5" pageNumber="42">
<emphasis id="B936E473FF8EFFFDC8AAF9DDFDC5F987" bold="true" box="[199,519,1591,1615]" pageId="5" pageNumber="42">Prevalence and abundance</emphasis>
(Lago Macanche): 16.6% (2 fish infected/ 12 examined), 1.5 worms per analyzed host (total number of worms, 3).
</paragraph>
<paragraph id="8BFD3861FF8EFFFDC8AAF994FCFEF972" blockId="5.[151,1437,1374,2010]" pageId="5" pageNumber="42">
<emphasis id="B936E473FF8EFFFDC8AAF994FE05F95F" bold="true" box="[199,455,1662,1687]" pageId="5" pageNumber="42">Specimens deposited.</emphasis>
<typeStatus id="54F986C3FF8EFFFDC9BDF994FDF9F95E" box="[464,571,1662,1686]" pageId="5" pageNumber="42" type="holotype">Holotype</typeStatus>
, 
<collectionCode id="ED53A0A4FF8EFFFDCA24F994FD57F95E" box="[585,661,1662,1686]" pageId="5" pageNumber="42">CNHE</collectionCode>
(8233), 3 
<typeStatus id="54F986C3FF8EFFFDCB7CF995FCBFF95F" box="[785,893,1663,1687]" pageId="5" pageNumber="42" type="paratype">paratypes</typeStatus>
(8234-8236); 7 
<typeStatus id="54F986C3FF8EFFFDCC56F995FB64F95F" box="[1083,1190,1663,1687]" pageId="5" pageNumber="42" type="paratype">paratypes</typeStatus>
CPSMUJAT (
<collectingCountry id="F35578F1FF8EFFFDCD20F994FAABF95E" box="[1357,1385,1662,1686]" name="Chile" pageId="5" pageNumber="42">Tr</collectingCountry>
002- 0 5,0 6,0 7, 
<collectingCountry id="F35578F1FF8EFFFDC96AF948FEE0F972" box="[263,290,1698,1722]" name="Chile" pageId="5" pageNumber="42">Tr</collectingCountry>
002/331002, originally labelled as 
<taxonomicName id="4C4243E2FF8EFFFDCACBF94EFCEEF973" box="[678,812,1699,1723]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="5" pageNumber="42" phylum="Platyhelminthes" rank="species" species="pallidum">
<emphasis id="B936E473FF8EFFFDCACBF94EFCEEF973" box="[678,812,1699,1723]" italics="true" pageId="5" pageNumber="42">H. pallidum</emphasis>
</taxonomicName>
).
</paragraph>
</subSubSection>
<subSubSection id="C3586BEAFF8EFFFDC8AAF92DFCD3F8EE" pageId="5" pageNumber="42" type="etymology">
<paragraph id="8BFD3861FF8EFFFDC8AAF92DFCD3F8EE" blockId="5.[151,1437,1374,2010]" pageId="5" pageNumber="42">
<emphasis id="B936E473FF8EFFFDC8AAF92DFE8CF917" bold="true" box="[199,334,1735,1759]" pageId="5" pageNumber="42">Etymology.</emphasis>
The species is named after the region where it is currently distributed. The term &quot;Mesoamerica&quot; refers to a geographical and cultural area which extends from central 
<collectingCountry id="F35578F1FF8EFFFDCBA1F900FBE0F8CA" box="[972,1058,1770,1794]" name="Mexico" pageId="5" pageNumber="42">Mexico</collectingCountry>
down through Central 
<collectingCountry id="F35578F1FF8EFFFDCD58F900FA5BF8CA" box="[1333,1433,1770,1794]" name="United States of America" pageId="5" pageNumber="42">America</collectingCountry>
, including 
<collectingCountry id="F35578F1FF8EFFFDC965F8E4FE46F8EE" box="[264,388,1806,1830]" name="Guatemala" pageId="5" pageNumber="42">Guatemala</collectingCountry>
, 
<collectingCountry id="F35578F1FF8EFFFDC9E2F8E4FE18F8EE" box="[399,474,1806,1830]" name="Belize" pageId="5" pageNumber="42">Belize</collectingCountry>
, 
<collectingCountry id="F35578F1FF8EFFFDC989F8E4FD93F8EE" box="[484,593,1806,1830]" name="Honduras" pageId="5" pageNumber="42">Honduras</collectingCountry>
and 
<collectingCountry id="F35578F1FF8EFFFDCAE5F8E4FCCFF8EE" box="[648,781,1806,1830]" name="El Salvador" pageId="5" pageNumber="42">El Salvador</collectingCountry>
.
</paragraph>
</subSubSection>
<subSubSection id="C3586BEAFF8EFFFFC8AAF8D8FB88FD5D" lastPageId="7" lastPageNumber="44" pageId="5" pageNumber="42" type="description">
<paragraph id="8BFD3861FF8EFFFFC8AAF8D8FB88FD5D" blockId="5.[151,1437,1374,2010]" lastBlockId="7.[151,1437,151,1182]" lastPageId="7" lastPageNumber="44" pageId="5" pageNumber="42">
<emphasis id="B936E473FF8EFFFDC8AAF8D8FE9BF883" bold="true" box="[199,345,1842,1867]" pageId="5" pageNumber="42">Description.</emphasis>
Based on 11 gravid specimens. Body elongated, 2,14 (1,30–3,19) long, 599 (400–890) wide. Spines on body tegument hardly visible on mounted specimens. Oral sucker subterminal, 209 (134–275) long, 216 (152–287) wide, lacking papillae around mouth opening. Mouth opening longer than wide, 71 (51–98 long, 70 (47–90) wide. Prepharynx elongated, relatively short 36 (7–66) long; pharynx 122 (80–193) long, 100 (60–160) wide. Esophagus 70 (26–129) long. Ventral sucker 227 (148–304) long, 243 (150–318) wide, 653 (451–938) from anterior end of body. Two compact eyespots on each side of anterior border of pharynx. Average ratio of oral sucker length to ventral sucker length 1:1.08. Average ratio of oral sucker width to ventral sucker width 1:1.12. Ceca bifurcating approximately half distance between pharynx and ventral sucker, 493 (292–717) from anterior end of body; ceca end blindly, left cecum 275 (149–297) from posterior body end, right cecum 257 (198–287) from posterior body end. Testes subspherical, located in tandem, contiguous; anterior testis 195 (133–283) long, 199 (133–299) wide; posterior testis 210 (127–310) long, 213 (140–308) wide. Postesticular space 561 (299–878), representing approximately 26% of body length. Cirrus sac absent. Seminal vesicle free in parenchyma, submedian, elongate, lying dorsal to ventral sucker, 121 (51–208) long, 123 (60–275) wide, inconspicuous hermaphroditic duct opening through medial genital pore, immediately anterior to ventral sucker, 618 (415–911) from anterior end of body. Ovary subspherical, 133 (60–190) long, 129 (66–183) wide, dextral, located approximately half distance between ventral sucker and the anterior border of anterior testis. Seminal receptacle spherical, dorsal to ovary, sometimes overlapping. Laurer’s canal muscular, inconspicuous, only observed in one individual. Vitelline follicles in two fields mainly extracecal, 1033 (664–1478) from anterior end of body, with scattered follicles confluent at pretesticular area, and completely confluent in the postesticular space, terminating 62 (41–100) from posterior end. Vitelline follicles extending from level of anterior border of ovary to almost reach posterior end of body. Uterus pretesticular, inter and extracecal, occupying most of area between ovary and ventral sucker, confluent with ejaculatory duct to form inconspicuous hermaphroditic duct. Eggs 85 (73–93) long, 48 (45–56) wide. Excretory vesicle I-shaped, ending in posttesticular space; excretory pore dorsally subterminal.
</paragraph>
</subSubSection>
<caption id="DF3D68E9FF8DFFFEC8FAF8F6FAE9F89B" httpUri="https://zenodo.org/record/281883/files/figure.png" pageId="6" pageNumber="43" targetBox="[180,1435,198,1782]" targetPageId="6">
<paragraph id="8BFD3861FF8DFFFEC8FAF8F6FAE9F89B" blockId="6.[151,1435,1820,1875]" pageId="6" pageNumber="43">
<emphasis id="B936E473FF8DFFFEC8FAF8F6FEF5F8F9" bold="true" box="[151,311,1820,1843]" pageId="6" pageNumber="43">FIGURE 3. A.</emphasis>
<taxonomicName id="4C4243E2FF8DFFFEC92DF8F6FD57F8FA" box="[320,661,1820,1842]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="6" pageNumber="43" phylum="Platyhelminthes" rank="species" species="masoamericanum" status="sp. nov.">
<emphasis id="B936E473FF8DFFFEC92DF8F6FD57F8FA" box="[320,661,1820,1842]" italics="true" pageId="6" pageNumber="43">Homalometron masoamericanum</emphasis>
</taxonomicName>
<emphasis id="B936E473FF8DFFFECAF3F8F7FD18F8FA" bold="true" box="[670,730,1821,1842]" pageId="6" pageNumber="43">
<taxonomicNameLabel id="A2055908FF8DFFFECAF3F8F7FD18F8FA" box="[670,730,1821,1842]" pageId="6" pageNumber="43" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
Holotype (gravid specimen). Ventral view. Scale bar = 500 Μm. 
<emphasis id="B936E473FF8DFFFECDE9F8F7FA59F8FA" bold="true" box="[1412,1435,1821,1842]" pageId="6" pageNumber="43">B.</emphasis>
Anterior end showing compact eye-spots. Scale bar = 75 Μm. C) Detail of the female genitalia. Scale bar = 100 Μm.
</paragraph>
</caption>
<subSubSection id="C3586BEAFF8CFFFFC8AAFD4AFC00FB56" pageId="7" pageNumber="44" type="discussion">
<paragraph id="8BFD3861FF8CFFFFC8AAFD4AFC00FB56" blockId="7.[151,1437,151,1182]" pageId="7" pageNumber="44">
<emphasis id="B936E473FF8CFFFFC8AAFD4AFEF9FD70" bold="true" box="[199,315,672,696]" pageId="7" pageNumber="44">Remarks.</emphasis>
<taxonomicName id="4C4243E2FF8CFFFFC92FFD4AFD75FD70" box="[322,695,672,696]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="7" pageNumber="44" phylum="Platyhelminthes" rank="species" species="mesoamericanum" status="sp. nov.">
<emphasis id="B936E473FF8CFFFFC92FFD4AFD75FD70" box="[322,695,672,696]" italics="true" pageId="7" pageNumber="44">Homalometron mesoamericanum</emphasis>
</taxonomicName>
<emphasis id="B936E473FF8CFFFFCAD3FD4AFD3FFD70" bold="true" box="[702,765,672,696]" pageId="7" pageNumber="44">
<taxonomicNameLabel id="A2055908FF8CFFFFCAD3FD4AFD3FFD70" box="[702,765,672,696]" pageId="7" pageNumber="44" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
also conforms to the diagnosis of the genus 
<taxonomicName id="4C4243E2FF8CFFFFCC9EFD4AFA59FD70" box="[1267,1435,672,696]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="7" pageNumber="44" phylum="Platyhelminthes" rank="genus">
<emphasis id="B936E473FF8CFFFFCC9EFD4AFA59FD70" box="[1267,1435,672,696]" italics="true" pageId="7" pageNumber="44">Homalometron</emphasis>
</taxonomicName>
given by 
<bibRefCitation id="EFD34590FF8CFFFFC96FFD28FE30FD12" author="Cribb" box="[258,498,706,731]" pageId="7" pageNumber="44" refString="Cribb, T. H. &amp; Bray R. A. (1999) A review of the Apocreadiidae Skrjabin, 1942 (Trematoda: Digenea) and description of Australian species. Systematic Parasitology, 44, 1 - 36." type="journal article" year="1999">Cribb &amp; Bray (1999)</bibRefCitation>
and 
<bibRefCitation id="EFD34590FF8CFFFFCA41FD28FD7DFD12" author="Cribb" box="[556,703,706,730]" pageId="7" pageNumber="44" refString="Cribb, T. H. (2005) Family Apocreadiidae Skrjabin, 1942. In: Jones, A, Bray, R. A &amp; Gibson, D. I. (Eds), Keys to the Trematoda, Volume 2, CAB International and The Natural History Museum, London, U. K., pp. 621 - 639." type="journal article" year="2005">Cribb (2005)</bibRefCitation>
excepting by possessing, consistently, two compact eyespots on each side of the anterior border of pharynx instead of dispersed eyespots. The vitelline follicles in this new species hardly reach the anterior border of the ovary. The new species resembles morphologically a group of species that are found in either brackish or freshwater fishes in the Americas, particularly the type-species, 
<taxonomicName id="4C4243E2FF8CFFFFCCD1FCC6FA83FC8B" box="[1212,1345,811,835]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="7" pageNumber="44" phylum="Platyhelminthes" rank="species" species="pallidum">
<emphasis id="B936E473FF8CFFFFCCD1FCC6FA83FC8B" box="[1212,1345,811,835]" italics="true" pageId="7" pageNumber="44">H. pallidum</emphasis>
</taxonomicName>
, a parasite mainly found in fundulids in North 
<collectingCountry id="F35578F1FF8CFFFFCA34FCA7FD78FCAD" box="[601,698,845,869]" name="United States of America" pageId="7" pageNumber="44">America</collectingCountry>
(and apparently other hosts, see Yamaguti 1971, 
<bibRefCitation id="EFD34590FF8CFFFFCC85FCA7FA52FCAD" author="Hoffman" box="[1256,1424,845,869]" pageId="7" pageNumber="44" refString="Hoffman, G. L. (1999) Parasites of North American freshwater fishes. 2 nd Edition. Cornell University Press, Ithaca, USA, 539 pp." type="book" year="1999">Hoffman 1999</bibRefCitation>
), 
<taxonomicName id="4C4243E2FF8CFFFFC8FAFC9BFEDDFC40" box="[151,287,881,904]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="7" pageNumber="44" phylum="Platyhelminthes" rank="species" species="armatum">
<emphasis id="B936E473FF8CFFFFC8FAFC9BFEDDFC40" box="[151,287,881,904]" italics="true" pageId="7" pageNumber="44">H. armatum</emphasis>
</taxonomicName>
, found in 
<taxonomicName id="4C4243E2FF8CFFFFC9F8FC9AFD56FC40" box="[405,660,880,904]" class="Actinopterygii" family="Sciaenidae" genus="Aplodinotus" kingdom="Animalia" order="Perciformes" pageId="7" pageNumber="44" phylum="Chordata" rank="species" species="grunniens">
<emphasis id="B936E473FF8CFFFFC9F8FC9AFD56FC40" box="[405,660,880,904]" italics="true" pageId="7" pageNumber="44">Aplodinotus grunniens</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C4243E2FF8CFFFFCAA0FC9BFCEEFC40" box="[717,812,881,904]" class="Actinopterygii" family="Centrarchidae" genus="Lepomis" kingdom="Animalia" order="Perciformes" pageId="7" pageNumber="44" phylum="Chordata" rank="genus">
<emphasis id="B936E473FF8CFFFFCAA0FC9BFCEEFC40" box="[717,812,881,904]" italics="true" pageId="7" pageNumber="44">Lepomis</emphasis>
</taxonomicName>
spp. in Texas, 
<collectingCountry id="F35578F1FF8CFFFFCBB5FC9AFBE7FC40" box="[984,1061,880,904]" name="United States of America" pageId="7" pageNumber="44">U.S.A.</collectingCountry>
and 
<taxonomicName id="4C4243E2FF8CFFFFCC30FC9BFAF1FC40" box="[1117,1331,880,904]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="7" pageNumber="44" phylum="Platyhelminthes" rank="species" species="pseudopallidum">
<emphasis id="B936E473FF8CFFFFCC30FC9BFAF1FC40" box="[1117,1331,880,904]" italics="true" pageId="7" pageNumber="44">H. pseudopallidum</emphasis>
</taxonomicName>
from the cichlid 
<taxonomicName id="4C4243E2FF8CFFFFC884FC79FDDEFC63" box="[233,540,915,939]" class="Actinopterygii" family="Cichlidae" genus="Gymnogeophagus" kingdom="Animalia" order="Perciformes" pageId="7" pageNumber="44" phylum="Chordata" rank="species" species="australis">
<emphasis id="B936E473FF8CFFFFC884FC79FDDEFC63" box="[233,540,915,939]" italics="true" pageId="7" pageNumber="44">Gymnogeophagus australis</emphasis>
</taxonomicName>
in 
<collectingCountry id="F35578F1FF8CFFFFCA52FC78FD70FC62" box="[575,690,914,938]" name="Argentina" pageId="7" pageNumber="44">Argentina</collectingCountry>
. However, it is distinguished from all of them by the constant presence of two compact eyespots rather than diffuse eyespots around the pharynx. In addition to that, the new species differs from 
<taxonomicName id="4C4243E2FF8CFFFFC94AFC33FE6FFC38" box="[295,429,984,1008]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="7" pageNumber="44" phylum="Platyhelminthes" rank="species" species="pallidum">
<emphasis id="B936E473FF8CFFFFC94AFC33FE6FFC38" box="[295,429,984,1008]" italics="true" pageId="7" pageNumber="44">H. pallidum</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C4243E2FF8CFFFFC985FC33FDB2FC38" box="[488,624,985,1008]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="7" pageNumber="44" phylum="Platyhelminthes" rank="species" species="armatum">
<emphasis id="B936E473FF8CFFFFC985FC33FDB2FC38" box="[488,624,985,1008]" italics="true" pageId="7" pageNumber="44">H. armatum</emphasis>
</taxonomicName>
by having smaller eggs (85 long by 48 wide vs 92–110 long by 42–70 wide in 
<taxonomicName id="4C4243E2FF8CFFFFC899FC16FEB9FBDB" box="[244,379,1019,1043]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="7" pageNumber="44" phylum="Platyhelminthes" rank="species" species="pallidum">
<emphasis id="B936E473FF8CFFFFC899FC16FEB9FBDB" box="[244,379,1019,1043]" italics="true" pageId="7" pageNumber="44">H. pallidum</emphasis>
</taxonomicName>
, and 110 long by 70 wide in 
<taxonomicName id="4C4243E2FF8CFFFFCAA0FC16FC94FBDB" box="[717,854,1020,1043]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="7" pageNumber="44" phylum="Platyhelminthes" rank="species" species="armatum">
<emphasis id="B936E473FF8CFFFFCAA0FC16FC94FBDB" box="[717,854,1020,1043]" italics="true" pageId="7" pageNumber="44">H. armatum</emphasis>
</taxonomicName>
(see 
<bibRefCitation id="EFD34590FF8CFFFFCBF9FC10FBDFFBDA" author="Miller" box="[916,1053,1018,1042]" pageId="7" pageNumber="44" refString="Miller, G. C. (1959) Studies on the genus Homalometron Stafford, 1904 (Trematoda: Lepocreadiidae), with a redescription of H. armatum (MacCallum, 1895). Journal of Parasitology, 45, 515 - 559." type="journal article" year="1959">Miller 1959</bibRefCitation>
; 
<bibRefCitation id="EFD34590FF8CFFFFCC47FC10FB10FBDA" author="Stunkard" box="[1066,1234,1018,1042]" pageId="7" pageNumber="44" refString="Stunkard, H. (1964) The morphology, life-history, and systematics of the digenetic trematode, Homalometron pallidum stafford, 1904. Biological Bulletin, 126, 163 - 173." type="journal article" year="1964">Stunkard 1964</bibRefCitation>
; Yamaguti 1971). 
<taxonomicName id="4C4243E2FF8CFFFFC8FAFBF7FDCFFBFD" box="[151,525,1053,1077]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="7" pageNumber="44" phylum="Platyhelminthes" rank="species" species="mesoamericanum" status="sp. nov.">
<emphasis id="B936E473FF8CFFFFC8FAFBF7FDCFFBFD" box="[151,525,1053,1077]" italics="true" pageId="7" pageNumber="44">Homalometron mesoamericanum</emphasis>
</taxonomicName>
<emphasis id="B936E473FF8CFFFFCA78FBF7FD97FBFD" bold="true" box="[533,597,1053,1077]" pageId="7" pageNumber="44">
<taxonomicNameLabel id="A2055908FF8CFFFFCA78FBF7FD97FBFD" box="[533,597,1053,1077]" pageId="7" pageNumber="44" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
differs from 
<emphasis id="B936E473FF8CFFFFCA80FBF4FC08FBFD" box="[749,970,1053,1077]" italics="true" pageId="7" pageNumber="44">
<taxonomicName id="4C4243E2FF8CFFFFCA80FBF4FC04FBFD" box="[749,966,1053,1077]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="7" pageNumber="44" phylum="Platyhelminthes" rank="species" species="pseudopallidum">H. pseudopallidum</taxonomicName>
,
</emphasis>
a species described by 
<bibRefCitation id="EFD34590FF8CFFFFCCBAFBF7FA59FBFD" author="Martorelli" box="[1239,1435,1053,1077]" pageId="7" pageNumber="44" refString="Martorelli, S. R. (1986) Estudios parasitologicos emn biotopos lemticos de la Republica Argentina II: El ciclo biologico de Homalometron pseudopallidum sp. nov. (Digenea), parasito de Gymnogeophagus asutralis (Ein = genmann, 1907) (Pisces: Cichlidae). Neotropica, 32, 3 - 12." type="journal article" year="1986">Martorelli (1986)</bibRefCitation>
from 
<taxonomicName id="4C4243E2FF8CFFFFC8B9FBAAFDC5FB90" box="[212,519,1088,1112]" class="Actinopterygii" family="Cichlidae" genus="Gymnogeophagus" kingdom="Animalia" order="Perciformes" pageId="7" pageNumber="44" phylum="Chordata" rank="species" species="australis">
<emphasis id="B936E473FF8CFFFFC8B9FBAAFDC5FB90" box="[212,519,1088,1112]" italics="true" pageId="7" pageNumber="44">Gymnogeophagus australis</emphasis>
</taxonomicName>
by having an elongate rather than an oval-shaped body, and by the anterior extent of vitellaria since in 
<taxonomicName id="4C4243E2FF8CFFFFC910FB8EFD90FBB3" box="[381,594,1123,1147]" class="Trematoda" family="Apocreadiidae" genus="Homalometron" kingdom="Animalia" order="Plagiorchiida" pageId="7" pageNumber="44" phylum="Platyhelminthes" rank="species" species="pseudopallidum">
<emphasis id="B936E473FF8CFFFFC910FB8EFD90FBB3" box="[381,594,1123,1147]" italics="true" pageId="7" pageNumber="44">H. pseudopallidum</emphasis>
</taxonomicName>
vitelline follicles extend up to the posterior border of ventral sucker meanwhile, in the new species, they hardly reach the anterior border of ovary.
</paragraph>
</subSubSection>
</treatment>
</document>