treatments-xml/data/43/6E/87/436E87B5BE6B554DFF67FF16FD1E4F64.xml
2024-06-21 12:34:50 +02:00

194 lines
22 KiB
XML
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<document id="79B560F7569FE639F568802BCAA8DA12" ID="10.11646/zootaxa.4254.2.1SLASH10791" ID-CLB-Dataset="33240" ID-DOI="10.11646/zootaxa.4254.2.1" ID-GBIF-Dataset="64b0d4b0-479e-484a-aaf5-d5237292d4a5" ID-ISSN="1175-5326" ID-Zenodo-Dep="545862" ID-ZooBank="0BDF72E4-5330-4EE7-8560-DF44E71C1F41" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1492068082255" checkinUser="plazi" docAuthor="Martin, Storm B., Cutmore, Scott C., Ward, Selina &amp; Cribb, Thomas H." docDate="2017" docId="436E87B5BE6B554DFF67FF16FD1E4F64" docLanguage="en" docName="zootaxa.4254.2.1SLASH10791.pdf" docOrigin="Zootaxa 4254 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Hamacreadium interruptum Nagaty 1941" docType="treatment" docVersion="8" lastPageNumber="164" masterDocId="BF57FFCDBE665540FFF0FF81FF844B36" masterDocTitle="An updated concept and revised composition for Hamacreadium Linton, 1910 (Opecoelidae: Plagioporinae) clarifies a previously obscured pattern of host-specificity among species" masterLastPageNumber="187" masterPageNumber="151" pageNumber="164" updateTime="1698438864167" updateUser="ExternalLinkService">
<mods:mods id="432411E6D38A2530D7C41A58E3D15DC7" xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo id="721E3F169AFA114AFB027D941BA2B98A">
<mods:title id="60171C6C0059F19B869089B10C636267">An updated concept and revised composition for Hamacreadium Linton, 1910 (Opecoelidae: Plagioporinae) clarifies a previously obscured pattern of host-specificity among species</mods:title>
</mods:titleInfo>
<mods:name id="4181CECDC8DEFDA38ADC065C9FAAA3E7" type="personal">
<mods:role id="D13879976A375858408293E1AD5617C9">
<mods:roleTerm id="841F03C11A4F4ADBA6C82BE54BAD7067">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="B3276BFFD6C7F02B60A9F3EF9D3C42BC">Martin, Storm B.</mods:namePart>
</mods:name>
<mods:name id="FE24626318D8946F8805B6F81B5C624A" type="personal">
<mods:role id="4632654F00A403B5CECD1665967FAE59">
<mods:roleTerm id="028BCEC76138E53DAE3F661667A7E546">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="5F1216573CC209B29472327898AA2FE2">Cutmore, Scott C.</mods:namePart>
</mods:name>
<mods:name id="87F60B38EEB643D7F8DEA2BC1B1F9C15" type="personal">
<mods:role id="C22AF15B77F2FC9C009F44A78022AB3F">
<mods:roleTerm id="74973B7F1F1434A2E38C529C05416E1A">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="124D138FDD8C0E9393732FD035416508">Ward, Selina</mods:namePart>
</mods:name>
<mods:name id="EA1201D4E02C4ED83F0CA9CDCD9D8116" type="personal">
<mods:role id="3C0CCAC7B83776A42A7589B513D02F24">
<mods:roleTerm id="9A700A8FB82D414CFF4922E847E84BEF">Author</mods:roleTerm>
</mods:role>
<mods:namePart id="867C2C655DDD546026A7D7F96BE83CFD">Cribb, Thomas H.</mods:namePart>
</mods:name>
<mods:typeOfResource id="6F081B89997BE411F7B2022229EF2F93">text</mods:typeOfResource>
<mods:relatedItem id="B28E726A37BCE6C3856842913D3AAC4A" type="host">
<mods:titleInfo id="0A75FC2EB33A33E99ED60851646B42E3">
<mods:title id="D1E313CA37A29377250A00A28DB40F67">Zootaxa</mods:title>
</mods:titleInfo>
<mods:part id="EE8ECB46AF72549532423AEF9FC03EBF">
<mods:date id="BE24CCED4B437B64AE3C04DDFC918648">2017</mods:date>
<mods:detail id="4F6097730FE2F6ECD3AAE6049D9AB71C" type="volume">
<mods:number id="59DF0D659EBF9998DB2BAE4A72CB32FD">4254</mods:number>
</mods:detail>
<mods:detail id="DC324F5E9A6FBFCE784E3D10806E0E33" type="issue">
<mods:number id="03EB7FD8BF44A9831572828511EC16C5">2</mods:number>
</mods:detail>
<mods:extent id="07825E9D063D8CE8C3A73FE539E7CEC5" unit="page">
<mods:start id="E64EA120EED45183A3C33673C24AA4C0">151</mods:start>
<mods:end id="97108C4E5A64B44F265BC870A12A5A6D">187</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:classification id="09A49B9C3A344EC8E05D8A6801A3972D">journal article</mods:classification>
<mods:identifier id="84EBF05FAF569BEADA6CE680F20B190B" type="CLB-Dataset">33240</mods:identifier>
<mods:identifier id="560BDBB521FA9F8E3141BEC3D321D43A" type="DOI">10.11646/zootaxa.4254.2.1</mods:identifier>
<mods:identifier id="7A7D148F43D845B595B4EE77B61C9644" type="GBIF-Dataset">64b0d4b0-479e-484a-aaf5-d5237292d4a5</mods:identifier>
<mods:identifier id="EA9C129BE7C4E8A1BB2EA600F1B96F71" type="ISSN">1175-5326</mods:identifier>
<mods:identifier id="6EA3962516AFADD30BA3DFF258A73A11" type="Zenodo-Dep">545862</mods:identifier>
<mods:identifier id="74589C31D08B9343085F9936A5FB14B1" type="ZooBank">0BDF72E4-5330-4EE7-8560-DF44E71C1F41</mods:identifier>
</mods:mods>
<treatment id="436E87B5BE6B554DFF67FF16FD1E4F64" ID-DOI="http://doi.org/10.5281/zenodo.6048922" ID-GBIF-Taxon="128527367" ID-Zenodo-Dep="6048922" LSID="urn:lsid:plazi:treatment:436E87B5BE6B554DFF67FF16FD1E4F64" httpUri="http://treatment.plazi.org/id/436E87B5BE6B554DFF67FF16FD1E4F64" lastPageNumber="164" pageId="13" pageNumber="164">
<subSubSection id="83DD6528BE6B554DFF67FF16FE904BE5" pageId="13" pageNumber="164" type="nomenclature">
<paragraph id="CB7836A3BE6B554DFF67FF16FD124B84" blockId="13.[151,662,151,211]" box="[151,662,151,178]" pageId="13" pageNumber="164">
<heading id="903081CFBE6B554DFF67FF16FD124B84" bold="true" box="[151,662,151,178]" fontSize="11" level="1" pageId="13" pageNumber="164" reason="1">
<taxonomicName id="0CC74D20BE6B554DFF67FF16FD124B84" ID-CoL="6LB5X" authority="Nagaty, 1941" authorityName="Nagaty" authorityYear="1941" box="[151,662,151,178]" class="Trematoda" family="Opecoelidae" genus="Hamacreadium" kingdom="Animalia" order="Plagiorchiida" pageId="13" pageNumber="164" phylum="Platyhelminthes" rank="species" species="interruptum">
<emphasis id="F9B3EAB1BE6B554DFF67FF16FD124B84" bold="true" box="[151,662,151,178]" pageId="13" pageNumber="164">
<emphasis id="F9B3EAB1BE6B554DFF67FF16FE6A4B87" bold="true" box="[151,494,151,177]" italics="true" pageId="13" pageNumber="164">Hamacreadium interruptum</emphasis>
<bibRefCitation id="AF564B52BE6B554DFE05FF19FD124B84" author="Nagaty" box="[501,662,152,178]" pageId="13" pageNumber="164" refString="Nagaty, H. F. (1941) Trematodes of fishes from the Red Sea. II. The genus Hamacreadium Linton, 1910 (Family Allocreadiidae) with a description of two new species. The Journal of the Egyptian Medical Association, 24, 300 - 310." type="journal article" year="1941">Nagaty, 1941</bibRefCitation>
</emphasis>
</taxonomicName>
</heading>
</paragraph>
<paragraph id="CB7836A3BE6B554DFF67FF3BFE904BE5" blockId="13.[151,662,151,211]" box="[151,276,186,211]" pageId="13" pageNumber="164">
(
<figureCitation id="53FC2A26BE6B554DFF6EFF3BFF794BE5" box="[158,253,186,211]" captionStart="FIGURE 3" captionStartId="14.[151,250,1660,1682]" captionTargetBox="[316,1273,349,1622]" captionTargetId="figure@14.[297,1290,339,1638]" captionTargetPageId="14" captionText="FIGURE 3. Reproduction with modification of type illustrations for (a) Hamacreadium interruptum Nagaty, 1941 and (b) Hamacreadium lethrini Yamaguti, 1934. Abbreviations: C, caecum; Cs, cirrus-sac; Ep, excretory pore; Ev, excretory vesicle; Gp, genital pore; O, ovary; Oes, oesophagus; Os, oral sucker; P, pharynx; T, testis; U, uterus; Vf, vitelline follicles; Vs, ventral sucker. Scale: 1000 µm, 1000 µm." httpUri="https://zenodo.org/record/545865/files/figure.png" pageId="13" pageNumber="164">Figure 3</figureCitation>
a)
</paragraph>
</subSubSection>
<subSubSection id="83DD6528BE6B554DFF67FE83FD1E4F64" pageId="13" pageNumber="164" type="description">
<paragraph id="CB7836A3BE6B554DFF67FE83FD384A2E" blockId="13.[151,700,258,281]" box="[151,700,258,281]" pageId="13" pageNumber="164">
<emphasis id="F9B3EAB1BE6B554DFF67FE83FE8B4A2F" bold="true" box="[151,271,258,281]" pageId="13" pageNumber="164">Synonyms:</emphasis>
<taxonomicName id="0CC74D20BE6B554DFEE4FE83FD3D4A2E" authority="Nagaty, 1941" authorityName="Nagaty" authorityYear="1941" box="[276,697,258,280]" class="Trematoda" family="Opecoelidae" genus="Hamacreadium" kingdom="Animalia" order="Plagiorchiida" pageId="13" pageNumber="164" phylum="Platyhelminthes" rank="species" species="interruptus">
<emphasis id="F9B3EAB1BE6B554DFEE4FE83FDAC4A2E" box="[276,552,258,280]" italics="true" pageId="13" pageNumber="164">Hamacreadium interruptus</emphasis>
<bibRefCitation id="AF564B52BE6B554DFDDEFE82FD3D4A2E" author="Nagaty" box="[558,697,258,280]" pageId="13" pageNumber="164" refString="Nagaty, H. F. (1941) Trematodes of fishes from the Red Sea. II. The genus Hamacreadium Linton, 1910 (Family Allocreadiidae) with a description of two new species. The Journal of the Egyptian Medical Association, 24, 300 - 310." type="journal article" year="1941">Nagaty, 1941</bibRefCitation>
</taxonomicName>
.
</paragraph>
<paragraph id="CB7836A3BE6B554DFF67FEC4FB4A4838" blockId="13.[151,1436,325,1106]" pageId="13" pageNumber="164">
<emphasis id="F9B3EAB1BE6B554DFF67FEC4FE844A68" bold="true" box="[151,256,325,350]" pageId="13" pageNumber="164">Records.</emphasis>
From the pink ear emperor,
<taxonomicName id="0CC74D20BE6B554DFDAAFEC4FC2C4A68" authority="Lacepede" authorityName="Lacepede" box="[602,936,325,350]" class="Actinopterygii" family="Lethrinidae" genus="Lethrinus" kingdom="Animalia" order="Perciformes" pageId="13" pageNumber="164" phylum="Chordata" rank="species" species="lentjan">
<emphasis id="F9B3EAB1BE6B554DFDAAFEC4FC9B4A68" box="[602,799,325,350]" italics="true" pageId="13" pageNumber="164">Lethrinus lentjan</emphasis>
(Lacépède)
</taxonomicName>
[as “
<taxonomicName id="0CC74D20BE6B554DFC1CFEC7FB184A68" box="[1004,1180,325,350]" class="Actinopterygii" family="Lethrinidae" genus="Lethrinus" kingdom="Animalia" order="Perciformes" pageId="13" pageNumber="164" phylum="Chordata" rank="species" species="mehsenoides">
<emphasis id="F9B3EAB1BE6B554DFC1CFEC7FC7F4A6B" box="[1004,1019,326,349]" italics="true" pageId="13" pageNumber="164">L</emphasis>
.
<emphasis id="F9B3EAB1BE6B554DFBFDFEC4FB184A68" box="[1037,1180,325,350]" italics="true" pageId="13" pageNumber="164">mehsenoides</emphasis>
</taxonomicName>
”], in the
<collectingRegion id="0903F841BE6B554DFAE3FEC4FAF04A68" box="[1299,1396,325,350]" country="Egypt" name="Al Bahr al Ahmar" pageId="13" pageNumber="164">Red Sea</collectingRegion>
by
<bibRefCitation id="AF564B52BE6B554DFF67FEEBFEBB4AB7" author="Nagaty" box="[151,319,361,386]" pageId="13" pageNumber="164" refString="Nagaty, H. F. (1941) Trematodes of fishes from the Red Sea. II. The genus Hamacreadium Linton, 1910 (Family Allocreadiidae) with a description of two new species. The Journal of the Egyptian Medical Association, 24, 300 - 310." type="journal article" year="1941">Nagaty (1941)</bibRefCitation>
. From the smalltooth emperor,
<taxonomicName id="0CC74D20BE6B554DFD59FEE8FBAC4AB4" authority="Valenciennes" authorityName="Valenciennes" box="[681,1064,361,386]" class="Actinopterygii" family="Lethrinidae" genus="Lethrinus" kingdom="Animalia" order="Perciformes" pageId="13" pageNumber="164" phylum="Chordata" rank="species" species="microdon">
<emphasis id="F9B3EAB1BE6B554DFD59FEE8FC034AB4" box="[681,903,361,386]" italics="true" pageId="13" pageNumber="164">Lethrinus microdon</emphasis>
Valenciennes
</taxonomicName>
, and from the Asian swamp eel,
<taxonomicName id="0CC74D20BE6B554DFF67FE0FFE404A90" authority="Zuiew" authorityName="Zuiew" box="[151,452,397,422]" class="Actinopterygii" family="Synbranchidae" genus="Monopterus" kingdom="Animalia" order="Synbranchiformes" pageId="13" pageNumber="164" phylum="Chordata" rank="species" species="albus">
<emphasis id="F9B3EAB1BE6B554DFF67FE0FFEE64A90" box="[151,354,397,422]" italics="true" pageId="13" pageNumber="164">Monopterus albus</emphasis>
(Zuiew)
</taxonomicName>
(
<taxonomicName id="0CC74D20BE6B554DFE23FE0CFD234A90" box="[467,679,397,422]" class="Actinopterygii" kingdom="Animalia" order="Synbranchiformes" pageId="13" pageNumber="164" phylum="Chordata" rank="order">Synbranchiformes</taxonomicName>
:
<taxonomicName id="0CC74D20BE6B554DFD42FE0CFCDE4A90" box="[690,858,397,422]" class="Actinopterygii" family="Synbranchidae" kingdom="Animalia" order="Synbranchiformes" pageId="13" pageNumber="164" phylum="Chordata" rank="family">Synbranchidae</taxonomicName>
) [as
<taxonomicName id="0CC74D20BE6B554DFC61FE0CFBEA4A90" authority="Zuiew" authorityName="Zuiew" box="[913,1134,397,422]" family="Synbranchidae" genus="Fluta" higherTaxonomySource="CoL" kingdom="Animalia" order="Synbranchiformes" pageId="13" pageNumber="164" phylum="Chordata" rank="species" species="alba">
<emphasis id="F9B3EAB1BE6B554DFC61FE0CFB834A90" box="[913,1031,397,422]" italics="true" pageId="13" pageNumber="164">Fluta alba</emphasis>
(Zuiew)
</taxonomicName>
], from
<collectingRegion id="0903F841BE6B554DFB4FFE0CFA824A90" box="[1215,1286,397,422]" country="Malaysia" name="Sabah" pageId="13" pageNumber="164">Sabah</collectingRegion>
,
<collectingCountry id="B3D07633BE6B554DFAE2FE0CFAFD4A90" box="[1298,1401,397,422]" name="Malaysia" pageId="13" pageNumber="164">Malaysia</collectingCountry>
by
<bibRefCitation id="AF564B52BE6B554DFF67FE30FE3F4AFC" author="Fischthal" box="[151,443,433,458]" pageId="13" pageNumber="164" refString="Fischthal, J. H. &amp; Kuntz, R. E. (1965) Digenetic trematodes of fishes from North Borneo (Malaysia). Proceedings of the Helminthological Society of Washington, 32, 63 - 71." type="journal article" year="1965">Fischthal &amp; Kuntz (1965)</bibRefCitation>
. From an unidentified marine fish in the
<collectingRegion id="0903F841BE6B554DFC75FE30FBA44AFF" box="[901,1056,433,458]" inferredBySuffix="true" pageId="13" pageNumber="164">Andaman Sea</collectingRegion>
by
<bibRefCitation id="AF564B52BE6B554DFBBBFE30FA0D4AFF" author="Hafeezullah" box="[1099,1417,433,458]" pageId="13" pageNumber="164" refString="Hafeezullah, M. &amp; Dutta, I. (1980) Digenetic trematodes of marine fishes of Andaman. Records of the Zoological Survey of India, 77, 75 - 82." type="journal article" year="1980">Hafeezullah &amp; Dutta (1980)</bibRefCitation>
.
<emphasis id="F9B3EAB1BE6B554DFF67FE54FE8F4AD8" bold="true" box="[151,267,469,494]" pageId="13" pageNumber="164">Remarks.</emphasis>
<bibRefCitation id="AF564B52BE6B554DFEE3FE57FE324AD8" author="Nagaty" box="[275,438,470,494]" pageId="13" pageNumber="164" refString="Nagaty, H. F. (1941) Trematodes of fishes from the Red Sea. II. The genus Hamacreadium Linton, 1910 (Family Allocreadiidae) with a description of two new species. The Journal of the Egyptian Medical Association, 24, 300 - 310." type="journal article" year="1941">Nagaty (1941)</bibRefCitation>
proposed this species based principally on the consistent and distinct interruption in the vitelline field at the level of the ventral sucker. Additionally, the cirrus-sac is large, cylindrical and curved, the genital pore is extra-caecal, almost lateral, the vitelline follicles become confluent in the forebody and the posterior margin of the body is strongly rounded. These features are consistent in a
<typeStatus id="147C8801BE6B554DFC2BFDC3FBBF496C" box="[987,1083,578,602]" pageId="13" pageNumber="164" type="paratype">paratype</typeStatus>
available for study (SI NMNH IZ #1355315), although the cirrus-sac is not as large as depicted by
<bibRefCitation id="AF564B52BE6B554DFC7FFDE7FBB14948" author="Nagaty" box="[911,1077,614,638]" pageId="13" pageNumber="164" refString="Nagaty, H. F. (1941) Trematodes of fishes from the Red Sea. II. The genus Hamacreadium Linton, 1910 (Family Allocreadiidae) with a description of two new species. The Journal of the Egyptian Medical Association, 24, 300 - 310." type="journal article" year="1941">Nagaty (1941)</bibRefCitation>
.
<bibRefCitation id="AF564B52BE6B554DFBB0FDE7FB664948" author="Nagaty" box="[1088,1250,614,638]" pageId="13" pageNumber="164" refString="Nagaty, H. F. (1941) Trematodes of fishes from the Red Sea. II. The genus Hamacreadium Linton, 1910 (Family Allocreadiidae) with a description of two new species. The Journal of the Egyptian Medical Association, 24, 300 - 310." type="journal article" year="1941">Nagaty (1941)</bibRefCitation>
did not describe the excretory vesicle, but it can be seen in the
<typeStatus id="147C8801BE6B554DFD40FD0BFC974994" box="[688,787,650,674]" pageId="13" pageNumber="164" type="paratype">paratype</typeStatus>
, terminating midway between the ventral sucker and the intestinal bifurcation. This species is consistent with the concept of the genus and
<bibRefCitation id="AF564B52BE6B554DFBC0FD2FFA9849F0" author="Bray" box="[1072,1308,685,710]" pageId="13" pageNumber="164" refString="Bray, R. A. &amp; Cribb, T. H. (1989) Digeneans of the family Opecoelidae Ozaki, 1925 from the southern Great Barrier Reef, including a new genus and three new species. Journal of Natural History, 23, 429 - 473. https: // doi. org / 10.1080 / 00222938900770261" type="journal article" year="1989">Bray &amp; Cribb (1989)</bibRefCitation>
considered it synonymous with
<taxonomicName id="0CC74D20BE6B554DFE77FD53FD8B49DC" box="[391,527,721,746]" class="Trematoda" family="Opecoelidae" genus="Hamacreadium" kingdom="Animalia" order="Plagiorchiida" pageId="13" pageNumber="164" phylum="Platyhelminthes" rank="species" species="mutabile">
<emphasis id="F9B3EAB1BE6B554DFE77FD53FE1F49DF" box="[391,411,722,745]" italics="true" pageId="13" pageNumber="164">H</emphasis>
.
<emphasis id="F9B3EAB1BE6B554DFE5DFD50FD8B49DC" box="[429,527,721,746]" italics="true" pageId="13" pageNumber="164">mutabile</emphasis>
</taxonomicName>
. However, here it is recognised as a distinct species, distinguishable from
<taxonomicName id="0CC74D20BE6B554DFA71FD53FF7D4838" class="Trematoda" family="Opecoelidae" genus="Hamacreadium" kingdom="Animalia" order="Plagiorchiida" pageId="13" pageNumber="164" phylum="Platyhelminthes" rank="species" species="mutabile">
<emphasis id="F9B3EAB1BE6B554DFA71FD53FA1149DF" box="[1409,1429,722,745]" italics="true" pageId="13" pageNumber="164">H</emphasis>
.
<emphasis id="F9B3EAB1BE6B554DFF67FD74FF7D4838" box="[151,249,757,782]" italics="true" pageId="13" pageNumber="164">mutabile</emphasis>
</taxonomicName>
morphologically, biogeographically, and by infection in lethrinids rather than lutjanids.
</paragraph>
<paragraph id="CB7836A3BE6B554DFF37FC98FD1E4F64" blockId="13.[151,1436,325,1106]" pageId="13" pageNumber="164">
Six of the 25 specimens collected by
<bibRefCitation id="AF564B52BE6B554DFD9AFC98FC084804" author="Fischthal" box="[618,908,793,818]" pageId="13" pageNumber="164" refString="Fischthal, J. H. &amp; Kuntz, R. E. (1965) Digenetic trematodes of fishes from North Borneo (Malaysia). Proceedings of the Helminthological Society of Washington, 32, 63 - 71." type="journal article" year="1965">Fischthal &amp; Kuntz (1965)</bibRefCitation>
from
<taxonomicName id="0CC74D20BE6B554DFC21FC9BFBDD4804" box="[977,1113,793,818]" class="Actinopterygii" family="Lethrinidae" genus="Lethrinus" kingdom="Animalia" order="Perciformes" pageId="13" pageNumber="164" phylum="Chordata" rank="species" species="microdon">
<emphasis id="F9B3EAB1BE6B554DFC21FC9BFC644807" box="[977,992,794,817]" italics="true" pageId="13" pageNumber="164">L</emphasis>
.
<emphasis id="F9B3EAB1BE6B554DFC1EFC98FBDD4804" box="[1006,1113,793,818]" italics="true" pageId="13" pageNumber="164">microdon</emphasis>
</taxonomicName>
(SI NMNH IZ #1355856/1 6) were available for study. These specimens represent a genuine
<taxonomicName id="0CC74D20BE6B554DFC6BFCBCFBCC4860" box="[923,1096,829,854]" class="Trematoda" family="Opecoelidae" genus="Hamacreadium" kingdom="Animalia" order="Plagiorchiida" pageId="13" pageNumber="164" phylum="Platyhelminthes" rank="genus">
<emphasis id="F9B3EAB1BE6B554DFC6BFCBCFBCC4860" box="[923,1096,829,854]" italics="true" pageId="13" pageNumber="164">Hamacreadium</emphasis>
</taxonomicName>
species, but probably not
<taxonomicName id="0CC74D20BE6B554DFA71FCBFFE99484F" class="Trematoda" family="Opecoelidae" genus="Hamacreadium" kingdom="Animalia" order="Plagiorchiida" pageId="13" pageNumber="164" phylum="Platyhelminthes" rank="species" species="interruptum">
<emphasis id="F9B3EAB1BE6B554DFA71FCBFFA114863" box="[1409,1429,830,853]" italics="true" pageId="13" pageNumber="164">H</emphasis>
.
<emphasis id="F9B3EAB1BE6B554DFF67FCE3FE99484F" box="[151,285,866,889]" italics="true" pageId="13" pageNumber="164">interruptum</emphasis>
</taxonomicName>
; in none is the posterior strongly rounded, nor do the vitelline follicles become confluent in the forebody, and in only two is the genital pore extra-caecal and the vitelline field interrupted. The eggs are also smaller (5468 × 3241
<emphasis id="F9B3EAB1BE6B554DFE43FC2BFE4E48F7" box="[435,458,938,961]" italics="true" pageId="13" pageNumber="164">vs</emphasis>
6877 × 4150 µm). The record of a single specimen from
<taxonomicName id="0CC74D20BE6B554DFB74FC2BFB6C48F4" box="[1156,1256,937,962]" class="Actinopterygii" family="Synbranchidae" genus="Monopterus" kingdom="Animalia" order="Synbranchiformes" pageId="13" pageNumber="164" phylum="Chordata" rank="species" species="albus">
<emphasis id="F9B3EAB1BE6B554DFB74FC2BFB1F48F7" box="[1156,1179,938,961]" italics="true" pageId="13" pageNumber="164">M</emphasis>
.
<emphasis id="F9B3EAB1BE6B554DFB5BFC28FB6C48F4" box="[1195,1256,937,962]" italics="true" pageId="13" pageNumber="164">albus</emphasis>
</taxonomicName>
by
<bibRefCitation id="AF564B52BE6B554DFAE6FC28FEB748D0" author="Fischthal" pageId="13" pageNumber="164" refString="Fischthal, J. H. &amp; Kuntz, R. E. (1965) Digenetic trematodes of fishes from North Borneo (Malaysia). Proceedings of the Helminthological Society of Washington, 32, 63 - 71." type="journal article" year="1965">Fischthal &amp; Kuntz (1965)</bibRefCitation>
is unconvincing because that fish is a freshwater eel. Although the specimen (SI NMNH IZ #1355857) is superficially consistent with
<taxonomicName id="0CC74D20BE6B554DFD8FFC70FCA84F3C" box="[639,812,1009,1034]" class="Trematoda" family="Opecoelidae" genus="Hamacreadium" kingdom="Animalia" order="Plagiorchiida" pageId="13" pageNumber="164" phylum="Platyhelminthes" rank="genus">
<emphasis id="F9B3EAB1BE6B554DFD8FFC70FCA84F3C" box="[639,812,1009,1034]" italics="true" pageId="13" pageNumber="164">Hamacreadium</emphasis>
</taxonomicName>
, the anterior extent of the excretory vesicle cannot be determined and the body is broadly rounded anteriorly and tapers posteriorly; it represents an especially generalised opecoelid of uncertain placement.
</paragraph>
</subSubSection>
</treatment>
</document>