286 lines
35 KiB
XML
286 lines
35 KiB
XML
<document id="1AEF4F0145C85A56C573F0D7E5CE37FA" ID-DOI="10.26107/RBZ-2021-0006" ID-ISSN="2345-7600" ID-Zenodo-Dep="5351710" ID-ZooBank="E6B81EA8-3E80-45F8-8680-52D6F550A9D8" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1630206581220" checkinUser="diego" docAuthor="Vo, Van Quang & Ho, Hsuan-Ching" docDate="2021" docId="03BED940FFE6FF8183D908A2FD05B830" docLanguage="en" docName="RBZ-2021-0006.pdf" docOrigin="Raffles Bulletin of Zoology 69" docStyle="DocumentStyle:AF09A0581917EACD12E7F0991C3E7C26.5:RafflesBZool.2019-.journal_article" docStyleId="AF09A0581917EACD12E7F0991C3E7C26" docStyleName="RafflesBZool.2019-.journal_article" docStyleVersion="5" docTitle="Echelus polyspondylus McCosker & Ho 2015" docType="treatment" docVersion="3" lastPageNumber="78" masterDocId="FF87A138FFE0FF86831B0C3FFFF4B012" masterDocTitle="A new species of the snake eel genus Ophichthus from Vietnam, with a new record of Echelus polyspondylus McCosker & Ho, 2015" masterLastPageNumber="79" masterPageNumber="71" pageNumber="77" updateTime="1699185041295" updateUser="plazi" zenodo-license-document="CC-BY-4.0">
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<mods:title id="F03120BB8E4C2CF446168B4FF69A54D5">A new species of the snake eel genus Ophichthus from Vietnam, with a new record of Echelus polyspondylus McCosker & Ho, 2015</mods:title>
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<mods:namePart id="2208FA409EF1CA3D62DB638EA123F805">Vo, Van Quang</mods:namePart>
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<mods:namePart id="E2CC7B81A3421BDDB940A9F0E1D26AF6">Ho, Hsuan-Ching</mods:namePart>
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<mods:title id="8A29956F649F0984AF99BE688971B807">Raffles Bulletin of Zoology</mods:title>
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<mods:part id="D692E22C9264DE792429EC97ACEB9191">
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<mods:date id="60CC99E6BFA51C86BE636631BA355F91">2021</mods:date>
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<paragraph id="8BA86856FFE6FF8083D908A2FD38B4A7" blockId="6.[194,716,1181,1237]" box="[194,716,1181,1205]" pageId="6" pageNumber="77">
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<heading id="D0E0DF3AFFE6FF8083D908A2FD38B4A7" bold="true" box="[194,716,1181,1205]" centered="true" fontSize="10" level="2" pageId="6" pageNumber="77" reason="2">
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<taxonomicName id="4C1713D5FFE6FF8083D908A2FD38B4A7" ID-CoL="6DSXG" authority="McCosker & Ho, 2015" authorityName="McCosker & Ho" authorityYear="2015" box="[194,716,1181,1205]" class="Actinopterygii" family="Ophichthidae" genus="Echelus" kingdom="Animalia" order="Anguilliformes" pageId="6" pageNumber="77" phylum="Chordata" rank="species" species="polyspondylus">
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<emphasis id="B963B444FFE6FF8083D908A2FD38B4A7" bold="true" box="[194,716,1181,1205]" pageId="6" pageNumber="77">
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<emphasis id="B963B444FFE6FF8083D908A2FE34B4A7" bold="true" box="[194,448,1181,1205]" italics="true" pageId="6" pageNumber="77">Echelus polyspondylus</emphasis>
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<bibRefCitation id="EF8615A7FFE6FF8082D308A2FD38B4A7" author="McCosker JE & Ho H-C" box="[456,716,1181,1205]" pageId="6" pageNumber="77" pagination="71 - 85" refId="ref6225" refString="McCosker JE & Ho H-C (2015) New species of the snake eels Echelus and Ophichthus (Anguilliformes: Ophichthidae) from Taiwan. Zootaxa, 4060 (1): 71 - 85." type="journal article" year="2015">McCosker & Ho, 2015</bibRefCitation>
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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<subSubSection id="C30D3BDDFFE6FF80824F0882FDCFB4C7" box="[340,571,1213,1237]" pageId="6" pageNumber="77" type="description">
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<paragraph id="8BA86856FFE6FF80824F0882FDCFB4C7" blockId="6.[194,716,1181,1237]" box="[340,571,1213,1237]" pageId="6" pageNumber="77">
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(
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<figureCitation id="132C74D3FFE6FF8082470882FE26B4C7" box="[348,466,1213,1237]" captionStart="Fig" captionStartId="7.[113,148,1537,1559]" captionTargetBox="[113,1451,189,1511]" captionTargetId="figure-10@7.[113,1451,189,1571]" captionTargetPageId="7" captionText="Fig. 3. Echelus polyspondylus McCosker & Ho, 2015, OIM-E.55810, 482 mm TL. A, fresh specimen; B, close-up of head; C, teeth on jaw. Pin is inserted at dorsal-fin origin." figureDoi="http://doi.org/10.5281/zenodo.5351716" httpUri="https://zenodo.org/record/5351716/files/figure.png" pageId="6" pageNumber="77">Fig. 3A‒C</figureCitation>
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,
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<tableCitation id="C6955DEDFFE6FF8082C40882FDC4B4C7" box="[479,560,1213,1237]" captionStart="Table 1" captionStartId="4.[136,191,189,211]" captionText="Table 1. Morphometric and meristic data of Ophichthus longicorpus, new species, and Echelus polyspondylus from Vietnam with a comparison to specimens from Taiwan." pageId="6" pageNumber="77">Table 1</tableCitation>
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)
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<paragraph id="8BA86856FFE6FF80839308C3FEBCB57A" blockId="6.[136,775,1276,1384]" pageId="6" pageNumber="77">
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<treatmentCitationGroup id="AB074F78FFE6FF80839308C3FEBCB57A" pageId="6" pageNumber="77">
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<treatmentCitation id="0AB64E47FFE6FF80839308C3FD85B503" author="McCosker JE & Ho H-C" box="[136,625,1276,1298]" page="73" pageId="6" pageNumber="77" year="2015">
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<taxonomicName id="4C1713D5FFE6FF80839308C3FD85B503" ID-CoL="6DSXG" authority="McCosker & Ho, 2015: 73" authorityName="McCosker & Ho" authorityPageNumber="73" authorityYear="2015" box="[136,625,1276,1298]" class="Actinopterygii" family="Ophichthidae" genus="Echelus" kingdom="Animalia" order="Anguilliformes" pageId="6" pageNumber="77" phylum="Chordata" rank="species" species="polyspondylus">
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<emphasis id="B963B444FFE6FF80839308C3FE90B503" box="[136,356,1276,1297]" italics="true" pageId="6" pageNumber="77">Echelus polyspondylus</emphasis>
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<bibRefCitation id="EF8615A7FFE6FF80827008C3FD85B503" author="McCosker JE & Ho H-C" box="[363,625,1276,1298]" pageId="6" pageNumber="77" pagination="71 - 85" refId="ref6225" refString="McCosker JE & Ho H-C (2015) New species of the snake eels Echelus and Ophichthus (Anguilliformes: Ophichthidae) from Taiwan. Zootaxa, 4060 (1): 71 - 85." type="journal article" year="2015">McCosker & Ho, 2015: 73</bibRefCitation>
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</taxonomicName>
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, figs. 1‒3 (
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locality: Dong-gang,
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<collectingRegion id="49D3A6B4FFE6FF80829F0926FE2AB53D" box="[388,478,1305,1327]" country="Taiwan" name="Pingtung" pageId="6" pageNumber="77">Pingtung</collectingRegion>
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, southwestern
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<collectingCountry id="F30028C6FFE6FF80816E0926FD34B53D" box="[629,704,1305,1327]" name="Taiwan" pageId="6" pageNumber="77">Taiwan</collectingCountry>
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, South
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<collectingCountry id="F30028C6FFE6FF8083B50909FF13B55E" box="[174,231,1334,1356]" name="China" pageId="6" pageNumber="77">China</collectingCountry>
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Sea, depth ca. 200 metres).
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<treatmentCitation id="0AB64E47FFE6FF80811D0909FD37B559" author="Ho H-C & McCosker JE & Smith DG & Shao K-T" box="[518,707,1333,1356]" page="8" pageId="6" pageNumber="77" year="2015">
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<bibRefCitation id="EF8615A7FFE6FF80811D0909FD37B559" author="Ho H-C & McCosker JE & Smith DG & Shao K-T" box="[518,707,1333,1356]" pageId="6" pageNumber="77" pagination="5 - 18" refId="ref6055" refString="Ho H-C, McCosker JE, Smith DG & Shao K-T (2015 a) Introduction to the systematics and biodiversity of eels (orders Anguilliformes and Saccopharyngiformes) of Taiwan. Zootaxa, 4060 (1): 5 - 18." type="journal article" year="2015">Ho et al., 2015a: 8</bibRefCitation>
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</treatmentCitation>
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.
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<treatmentCitation id="0AB64E47FFE6FF8081CB0909FEB0B57A" author="Ho H-C & Smith DG & McCosker JE & Hibino Y & Loh, K-H & Tighe KA & Shao K-T" page="168" pageId="6" pageNumber="77" year="2015">
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<bibRefCitation id="EF8615A7FFE6FF8081CB0909FEB0B57A" author="Ho H-C & Smith DG & McCosker JE & Hibino Y & Loh, K-H & Tighe KA & Shao K-T" pageId="6" pageNumber="77" pagination="140 - 189" refId="ref6098" refString="Ho H-C, Smith DG, McCosker JE, Hibino Y, Loh, K-H, Tighe KA & Shao K-T (2015 b) Annotated checklist of eels (orders Anguilliformes and Saccopharyngiformes) from Taiwan. Zootaxa, 4060 (1): 140 - 189." type="journal article" year="2015">Ho et al., 2015b: 168</bibRefCitation>
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</treatmentCitation>
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.
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<paragraph id="8BA86856FFE6FF80839309B2FF31B6B7" blockId="6.[136,776,1421,1701]" pageId="6" pageNumber="77">
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<emphasis id="B963B444FFE6FF80839309B2FE64B5B7" bold="true" box="[136,400,1421,1445]" pageId="6" pageNumber="77">Specimens examined.</emphasis>
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<materialsCitation id="3B7F620BFFE6FF80828709B2FF35B637" collectingDate="2019-08-24" country="Vietnam" county="Sea." elevation="175" location="All" municipality="South" pageId="6" pageNumber="77" specimenCode="NMMB-P34716" specimenCount="2" stateProvince="Khanh Hoa">
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collected by bottom trawl, ca.
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, from off LƯƠng SƠn,
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<location id="8EC83E8DFFE6FF80812D0992FD44B5D4" LSID="urn:lsid:plazi:treatment:03BED940FFE6FF8183D908A2FD05B830:8EC83E8DFFE6FF80812D0992FD44B5D4" box="[566,688,1453,1478]" country="Vietnam" county="Sea." municipality="South" name="Nha Trang" pageId="6" pageNumber="77" stateProvince="Khanh Hoa">Nha Trang</location>
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,
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<collectingRegion id="49D3A6B4FFE6FF8081A40992FF4FB5F7" country="Vietnam" name="Khanh Hoa" pageId="6" pageNumber="77">Khánh Hòa</collectingRegion>
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, southeast coast of
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,
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<collectingMunicipality id="6BCCF22CFFE6FF80812A09F2FD81B5F7" box="[561,629,1485,1509]" pageId="6" pageNumber="77">South</collectingMunicipality>
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<collectingCounty id="62C910DAFFE6FF8081CE09F2FCF2B5F7" box="[725,774,1485,1509]" pageId="6" pageNumber="77">Sea.</collectingCounty>
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,
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<specimenCount id="9D11A3DFFFE6FF80825D09D2FE38B617" box="[326,460,1517,1541]" pageId="6" pageNumber="77" type="generic">2 specimens</specimenCount>
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,
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<quantity id="4CEFC5B3FFE6FF8082CC09D2FD90B617" box="[471,612,1517,1541]" metricMagnitude="-1" metricUnit="m" metricValue="4.615" metricValueMax="4.68" metricValueMin="4.55" pageId="6" pageNumber="77" unit="mm" value="461.5" valueMax="468.0" valueMin="455.0">455‒468 mm</quantity>
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TL,
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<collectingDate id="EFEDB77EFFE6FF80818109D2FF35B637" pageId="6" pageNumber="77" value="2019-08-24">24 August 2019</collectingDate>
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;
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<materialsCitation id="3B7F620BFFE6FF8083CB0A32FEEDB657" collectingDate="2019-08-03" country="Vietnam" pageId="6" pageNumber="77" specimenCode="NMMB-P34717" specimenCount="3" stateProvince="Khanh Hoa">
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<specimenCode id="DBB1C02DFFE6FF8083CB0A32FE70B637" box="[208,388,1549,1573]" collectionCode="NMMB-P" pageId="6" pageNumber="77">NMMB-P34717</specimenCode>
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,
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<specimenCount id="9D11A3DFFFE6FF80828A0A32FDE8B637" box="[401,540,1549,1573]" pageId="6" pageNumber="77" type="generic">3 specimens</specimenCount>
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,
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<quantity id="4CEFC5B3FFE6FF8081300A32FD49B637" box="[555,701,1549,1573]" metricMagnitude="-1" metricUnit="m" metricValue="4.0649999999999995" metricValueMax="4.45" metricValueMin="3.6799999999999997" pageId="6" pageNumber="77" unit="mm" value="406.5" valueMax="445.0" valueMin="368.0">368‒445 mm</quantity>
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TL,
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<date id="FFA94E96FFE6FF8081E20A32FEEDB657" pageId="6" pageNumber="77" value="2019-08-03">
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<collectingDate id="EFEDB77EFFE6FF8081E20A32FEEDB657" pageId="6" pageNumber="77" value="2019-08-03">3 August 2019</collectingDate>
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; OIM-E.55810,
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,
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<quantity id="4CEFC5B3FFE6FF80816D0A12FCF3B657" box="[630,775,1581,1605]" metricMagnitude="-1" metricUnit="m" metricValue="4.17" metricValueMax="4.8" metricValueMin="3.54" pageId="6" pageNumber="77" unit="mm" value="417.0" valueMax="480.0" valueMin="354.0">354‒480 mm</quantity>
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TL, 1 cleared & stained,
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<date id="FFA94E96FFE6FF8082830A72FDBDB677" box="[408,585,1613,1638]" pageId="6" pageNumber="77" value="2019-08-24">24 August 2019</date>
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; OIM-E.55811,
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<specimenCount id="9D11A3DFFFE6FF8081E10A72FF0EB697" pageId="6" pageNumber="77" type="generic">2 specimens</specimenCount>
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,
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<quantity id="4CEFC5B3FFE6FF80821E0A52FE66B697" box="[261,402,1645,1669]" metricMagnitude="-1" metricUnit="m" metricValue="3.5" metricValueMax="3.6399999999999997" metricValueMin="3.36" pageId="6" pageNumber="77" unit="mm" value="350.0" valueMax="364.0" valueMin="336.0">336‒364 mm</quantity>
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TL, 1 cleared & stained,
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<date id="FFA94E96FFE6FF8081BE0A52FF35B6B7" pageId="6" pageNumber="77" value="2019-08-03">3 August 2019</date>
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.
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</paragraph>
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<subSubSection id="C30D3BDDFFE6FF8083930AF2FB1EB747" pageId="6" pageNumber="77" type="diagnosis">
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<emphasis id="B963B444FFE6FF8083930AF2FF0BB6F7" bold="true" box="[136,255,1741,1765]" pageId="6" pageNumber="77">Diagnosis.</emphasis>
|
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A species of
|
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<taxonomicName id="4C1713D5FFE6FF8082BB0AF2FE02B6F7" authorityName="Rafinesque" authorityYear="1810" box="[416,502,1741,1765]" class="Actinopterygii" family="Ophichthidae" genus="Echelus" kingdom="Animalia" order="Anguilliformes" pageId="6" pageNumber="77" phylum="Chordata" rank="genus">
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<emphasis id="B963B444FFE6FF8082BB0AF2FE02B6F7" box="[416,502,1741,1765]" italics="true" pageId="6" pageNumber="77">Echelus</emphasis>
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</taxonomicName>
|
||
with tail 64–69%, head 7.6–9.3%, and body depth at gill opening 1.8–2.9% TL; tail tip flexible with clear caudal‒fin rays; DFO 0.7‒1 HL behind head; pectoral fin small, pointed, not elongate; posterior nostril within upper lip, covered by a large flap; head pores: SO 1+4, IO 4+2, POM 6+3; teeth small, conical, biserial anteriorly and uniserial posteriorly on jaws, uniserial on vomer; colouration light brown dorsally, pale ventrally, fins pale except anal-fin membrane which is black before tail tip; total vertebrae 172–183 (
|
||
<bibRefCitation id="EF8615A7FFE6FF80828B0BD2FD7CB817" author="McCosker JE & Ho H-C" box="[400,648,2029,2053]" pageId="6" pageNumber="77" pagination="71 - 85" refId="ref6225" refString="McCosker JE & Ho H-C (2015) New species of the snake eels Echelus and Ophichthus (Anguilliformes: Ophichthidae) from Taiwan. Zootaxa, 4060 (1): 71 - 85." type="journal article" year="2015">McCosker & Ho, 2015</bibRefCitation>
|
||
; this study).
|
||
<emphasis id="B963B444FFE6FF8080580C82FC2DB0C7" bold="true" box="[835,985,189,213]" pageId="6" pageNumber="77">Description.</emphasis>
|
||
Body rather elongate (
|
||
<figureCitation id="132C74D3FFE6FF8087E90C82FAA6B0C7" box="[1266,1362,189,213]" captionStart="Fig" captionStartId="7.[113,148,1537,1559]" captionTargetBox="[113,1451,189,1511]" captionTargetId="figure-10@7.[113,1451,189,1571]" captionTargetPageId="7" captionText="Fig. 3. Echelus polyspondylus McCosker & Ho, 2015, OIM-E.55810, 482 mm TL. A, fresh specimen; B, close-up of head; C, teeth on jaw. Pin is inserted at dorsal-fin origin." figureDoi="http://doi.org/10.5281/zenodo.5351716" httpUri="https://zenodo.org/record/5351716/files/figure.png" pageId="6" pageNumber="77">Fig. 3A</figureCitation>
|
||
), slightly compressed, gradually becoming more compressed to tail, its depth at gill openings 35‒45 (mean 41) times in TL. Branchial basket not especially expanded. The skin smooth through entire body. Head moderately large, its length
|
||
<quantity id="4CEFC5B3FFE6FF8086200D02FA36B147" box="[1339,1474,317,341]" metricMagnitude="-1" metricUnit="m" metricValue="3.0225999999999997" metricValueMax="3.3274" metricValueMin="2.7177999999999995" pageId="6" pageNumber="77" unit="in" value="11.899999999999999" valueMax="13.1" valueMin="10.7">10.7–13.1 in</quantity>
|
||
TL. Anus situated well before middle of total length, head and trunk
|
||
<quantity id="4CEFC5B3FFE6FF8080AE0D42FBD6B187" box="[949,1058,381,405]" metricMagnitude="-2" metricUnit="m" metricValue="7.111999999999999" metricValueMax="7.874" metricValueMin="6.35" pageId="6" pageNumber="77" unit="in" value="2.8" valueMax="3.1" valueMin="2.5">2.5‒3.1 in</quantity>
|
||
TL. Snout moderately long and blunt, broadly pointed when viewed from above; underside of snout not bisected by a groove. Lower jaw included, its tip extends to posterior margin of anterior nostril tube. Upper jaw moderately long, rictus well behind a vertical through posterior margin of eye.
|
||
</paragraph>
|
||
<paragraph id="8BA86856FFE6FF8080580E61FB18B3A7" blockId="6.[835,1475,605,950]" pageId="6" pageNumber="77">
|
||
Eye large, its anterior margin at about middle of upper jaw, its diameter
|
||
<quantity id="4CEFC5B3FFE6FF8080E40E42FB98B287" box="[1023,1132,637,661]" metricMagnitude="-2" metricUnit="m" metricValue="5.842" metricValueMax="6.858" metricValueMin="4.826" pageId="6" pageNumber="77" unit="in" value="2.3" valueMax="2.7" valueMin="1.9">1.9‒2.7 in</quantity>
|
||
upper jaw and
|
||
<quantity id="4CEFC5B3FFE6FF80860D0E42FA64B287" box="[1302,1424,637,661]" metricMagnitude="-1" metricUnit="m" metricValue="2.3749" metricValueMax="2.667" metricValueMin="2.0827999999999998" pageId="6" pageNumber="77" unit="in" value="9.35" valueMax="10.5" valueMin="8.2">8.2‒10.5 in</quantity>
|
||
HL. Anterior nostril tubular, extending anteroventrally from snout, not reaching lower jaw when directed downward. Posterior nostril within upper lip, covered by a large flap that extends well below edge of mouth gape. No barbel on upper lip. Dorsal-fin origin at about anterior 1/3 of trunk length, 0.7‒1 HL behind head. Median fins low but obvious, continuous to a small caudal fin, the fin with short rays. Pectoral fin small with a narrow base, slightly elongate and slightly pointed posteriorly, the longest rays at mid-fin.
|
||
</paragraph>
|
||
<paragraph id="8BA86856FFE6FF8080580FE2FB88B4A7" blockId="6.[835,1475,989,1206]" pageId="6" pageNumber="77">
|
||
Head pores apparent (
|
||
<figureCitation id="132C74D3FFE6FF8087310FE2FB88B3E7" box="[1066,1148,989,1013]" captionStart="Fig" captionStartId="7.[113,148,1537,1559]" captionTargetBox="[113,1451,189,1511]" captionTargetId="figure-10@7.[113,1451,189,1571]" captionTargetPageId="7" captionText="Fig. 3. Echelus polyspondylus McCosker & Ho, 2015, OIM-E.55810, 482 mm TL. A, fresh specimen; B, close-up of head; C, teeth on jaw. Pin is inserted at dorsal-fin origin." figureDoi="http://doi.org/10.5281/zenodo.5351716" httpUri="https://zenodo.org/record/5351716/files/figure.png" pageId="6" pageNumber="77">Fig. 3B</figureCitation>
|
||
). SO 1 (ethmoid) + 4 on dorsal surface of snout and interorbital space; IO 4 + 2, 2 between nostrils, 2 below the eye, and 2 behind the eye; M 6, the last pore slightly behind rictus; POP 2; ST 3; F 0. Lateralline pores large, HLL 9–10, in an arching sequence, PDLL 20‒25; PALL 50‒56, TLL 165‒171, the last at about two eye diameters before tail tip.
|
||
</paragraph>
|
||
<paragraph id="8BA86856FFE6FF80805808E2FC30B5A7" blockId="6.[835,1475,1245,1461]" pageId="6" pageNumber="77">
|
||
Teeth (
|
||
<figureCitation id="132C74D3FFE6FF80809708E2FC2FB4E7" box="[908,987,1245,1269]" captionStart="Fig" captionStartId="7.[113,148,1537,1559]" captionTargetBox="[113,1451,189,1511]" captionTargetId="figure-10@7.[113,1451,189,1571]" captionTargetPageId="7" captionText="Fig. 3. Echelus polyspondylus McCosker & Ho, 2015, OIM-E.55810, 482 mm TL. A, fresh specimen; B, close-up of head; C, teeth on jaw. Pin is inserted at dorsal-fin origin." figureDoi="http://doi.org/10.5281/zenodo.5351716" httpUri="https://zenodo.org/record/5351716/files/figure.png" pageId="6" pageNumber="77">Fig. 3C</figureCitation>
|
||
) moderately large, conical, and closely spaced. Intermaxillary with a long oval patch of teeth arranged in 3 or 4 rows; single row of vomerine teeth. Maxillary and mandibular teeth biserial mostly, except for some additional small teeth on anterior portions forming 3 rows. Some specimens with single row of teeth in posterior portion of mandibular.
|
||
</paragraph>
|
||
<paragraph id="8BA86856FFE6FF80805809E2FB1EB747" blockId="6.[834,1475,1501,1877]" pageId="6" pageNumber="77">
|
||
<emphasis id="B963B444FFE6FF80805809E2FC20B5E7" bold="true" box="[835,980,1501,1525]" pageId="6" pageNumber="77">Colouration.</emphasis>
|
||
When fresh (
|
||
<figureCitation id="132C74D3FFE6FF80877309E2FB29B5E7" box="[1128,1245,1501,1525]" captionStart="Fig" captionStartId="7.[113,148,1537,1559]" captionTargetBox="[113,1451,189,1511]" captionTargetId="figure-10@7.[113,1451,189,1571]" captionTargetPageId="7" captionText="Fig. 3. Echelus polyspondylus McCosker & Ho, 2015, OIM-E.55810, 482 mm TL. A, fresh specimen; B, close-up of head; C, teeth on jaw. Pin is inserted at dorsal-fin origin." figureDoi="http://doi.org/10.5281/zenodo.5351716" httpUri="https://zenodo.org/record/5351716/files/figure.png" pageId="6" pageNumber="77">Fig. 3A, B</figureCitation>
|
||
), body light greenish brown dorsally with lower portion of head and trunk pale; fins pale, except for posterior portion of anal-fin, about 2/3 head length in advance of tail tip, and lower margin of caudal fin darkened. When preserved, body pale yellow dorsally, gradually paler ventrally. Fine light brown pigments on dorsal surface of head and trunk and chin, gradually extending lower on tail; underside of head and trunk pale without pigments. Posterior portion of anal fin about 2/3 head length in advance of tail tip, and lower margin of caudal fin darkened. Mouth cavity pale. Peritoneum pale with many black pigments on upper half; stomach and intestine pale.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C30D3BDDFFE6FF8080580B42FB7BB7A7" pageId="6" pageNumber="77" type="distribution">
|
||
<paragraph id="8BA86856FFE6FF8080580B42FB7BB7A7" blockId="6.[835,1474,1917,1974]" pageId="6" pageNumber="77">
|
||
<emphasis id="B963B444FFE6FF8080580B42FC22B787" bold="true" box="[835,982,1917,1941]" pageId="6" pageNumber="77">Distribution.</emphasis>
|
||
Described from
|
||
<collectingCountry id="F30028C6FFE6FF80878A0B42FB15B787" box="[1169,1249,1917,1941]" name="Taiwan" pageId="6" pageNumber="77">Taiwan</collectingCountry>
|
||
and newly recorded from off Nha Trang,
|
||
<collectingCountry id="F30028C6FFE6FF8087370BA2FB7FB7A7" box="[1068,1163,1949,1973]" name="Vietnam" pageId="6" pageNumber="77">Vietnam</collectingCountry>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C30D3BDDFFE6FF8180580BE2FD05B830" lastPageId="7" lastPageNumber="78" pageId="6" pageNumber="77" type="discussion">
|
||
<paragraph id="8BA86856FFE6FF8180580BE2FDDDB731" blockId="6.[835,1475,2013,2070]" lastBlockId="7.[112,753,1643,1827]" lastPageId="7" lastPageNumber="78" pageId="6" pageNumber="77">
|
||
<emphasis id="B963B444FFE6FF8080580BE2FC46B7E7" bold="true" box="[835,946,2013,2037]" pageId="6" pageNumber="77">Remarks.</emphasis>
|
||
Our specimens have branchiostegal rays largely overlapped and short but clearly visible fin rays on caudal fin. The morphology and meristic data of Vietnamese specimens agree well with the
|
||
<typeStatus id="54ACD6F4FFE7FF81824F0AB4FE77B6B1" box="[340,387,1675,1699]" pageId="7" pageNumber="78">type</typeStatus>
|
||
series and additional specimens collected from
|
||
<collectingCountry id="F30028C6FFE7FF81823F0A94FE8FB6D1" box="[292,379,1707,1731]" name="Taiwan" pageId="7" pageNumber="78">Taiwan</collectingCountry>
|
||
, except there are relatively few pores in PALL 50‒56 (vs.
|
||
<quantity id="4CEFC5B3FFE7FF8182850AF5FE0BB6F1" box="[414,511,1738,1763]" metricMagnitude="0" metricUnit="m" metricValue="1.4731999999999998" metricValueMax="1.524" metricValueMin="1.4224" pageId="7" pageNumber="78" unit="in" value="58.0" valueMax="60.0" valueMin="56.0">56‒60 in</quantity>
|
||
<typeStatus id="54ACD6F4FFE7FF8181120AF4FDC3B6F1" box="[521,567,1739,1763]" pageId="7" pageNumber="78">type</typeStatus>
|
||
series) and TLL 165‒171 (vs. 171‒178). These differences may be attributed to geographic and population variations.
|
||
</paragraph>
|
||
<caption id="DF6838DEFFE7FF81836A0A3EFE06B621" ID-DOI="http://doi.org/10.5281/zenodo.5351716" ID-Zenodo-Dep="5351716" httpUri="https://zenodo.org/record/5351716/files/figure.png" pageId="7" pageNumber="78" startId="7.[113,148,1537,1559]" targetBox="[113,1451,189,1511]" targetPageId="7">
|
||
<paragraph id="8BA86856FFE7FF81836A0A3EFE06B621" blockId="7.[113,1451,1537,1587]" pageId="7" pageNumber="78">
|
||
Fig. 3.
|
||
<taxonomicName id="4C1713D5FFE7FF8183A10A3EFD71B605" authority="McCosker & Ho, 2015" authorityName="McCosker & Ho" authorityYear="2015" box="[186,645,1537,1559]" class="Actinopterygii" family="Ophichthidae" genus="Echelus" kingdom="Animalia" order="Anguilliformes" pageId="7" pageNumber="78" phylum="Chordata" rank="species" species="polyspondylus">
|
||
<emphasis id="B963B444FFE7FF8183A10A3EFE63B604" box="[186,407,1537,1558]" italics="true" pageId="7" pageNumber="78">Echelus polyspondylus</emphasis>
|
||
<bibRefCitation id="EF8615A7FFE7FF8182BB0A3EFD71B605" author="McCosker JE & Ho H-C" box="[416,645,1537,1559]" pageId="7" pageNumber="78" pagination="71 - 85" refId="ref6225" refString="McCosker JE & Ho H-C (2015) New species of the snake eels Echelus and Ophichthus (Anguilliformes: Ophichthidae) from Taiwan. Zootaxa, 4060 (1): 71 - 85." type="journal article" year="2015">McCosker & Ho, 2015</bibRefCitation>
|
||
</taxonomicName>
|
||
, OIM-E.55810, 482 mm TL. A, fresh specimen; B, close-up of head; C, teeth on jaw. Pin is inserted at dorsal-fin origin.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BA86856FFE7FF81836A0B75FD05B830" blockId="7.[113,753,1866,2083]" pageId="7" pageNumber="78">
|
||
<emphasis id="B963B444FFE7FF81836A0B75FE87B770" bold="true" box="[113,371,1866,1890]" pageId="7" pageNumber="78">Comparative materials.</emphasis>
|
||
<taxonomicName id="4C1713D5FFE7FF8182630B74FD44B770" authority=": ASIZP" authorityName="ASIZP" box="[376,688,1866,1891]" class="Actinopterygii" family="Ophichthidae" genus="Ophichthus" kingdom="Animalia" order="Anguilliformes" pageId="7" pageNumber="78" phylum="Chordata" rank="species" species="aphotistos">
|
||
<emphasis id="B963B444FFE7FF8182630B74FDA8B771" box="[376,604,1867,1891]" italics="true" pageId="7" pageNumber="78">Ophichthus aphotistos</emphasis>
|
||
:
|
||
<materialsCitation id="3B7F620BFFE7FF81817C0B75FD44B770" box="[615,688,1866,1890]" collectingDate="1999-02-20" collectingDateMax="2004-07-06" collectingDateMin="1999-02-20" collectionCode="ASIZP, CAS, USNM" country="Taiwan" location="Daxi" municipality="Daxi" pageId="7" pageNumber="78" specimenCode="ASIZP64287, CAS 209192, USNM 356862" specimenCount="2" stateProvince="Yilan" typeStatus="holotype">ASIZP</materialsCitation>
|
||
</taxonomicName>
|
||
63657 (
|
||
<quantity id="4CEFC5B3FFE7FF8183670B54FF05B790" box="[124,241,1898,1923]" metricMagnitude="0" metricUnit="m" metricValue="1.657" pageId="7" pageNumber="78" unit="mm" value="1657.0">1, 657 mm</quantity>
|
||
TL),
|
||
<location id="8EC83E8DFFE7FF81822F0B54FE9EB791" LSID="urn:lsid:plazi:treatment:03BED940FFE6FF8183D908A2FD05B830:8EC83E8DFFE7FF81822F0B54FE9EB791" box="[308,362,1899,1923]" country="Taiwan" municipality="Daxi" name="Daxi" pageId="7" pageNumber="78" stateProvince="Yilan">Daxi</location>
|
||
,
|
||
<collectingRegion id="49D3A6B4FFE7FF81826C0B54FE41B791" box="[375,437,1899,1923]" country="Taiwan" name="Yilan" pageId="7" pageNumber="78">Yilan</collectingRegion>
|
||
, NE
|
||
<collectingCountry id="F30028C6FFE7FF8182F40B54FDB6B791" box="[495,578,1899,1923]" name="Taiwan" pageId="7" pageNumber="78">Taiwan</collectingCountry>
|
||
,
|
||
<date id="FFA94E96FFE7FF8181540B54FD19B791" box="[591,749,1899,1923]" pageId="7" pageNumber="78" value="2000-04-10">
|
||
<collectingDate id="EFEDB77EFFE7FF8181540B54FD19B791" box="[591,749,1899,1923]" pageId="7" pageNumber="78" value="2000-04-10">10 April 2000</collectingDate>
|
||
</date>
|
||
.
|
||
<specimenCode id="DBB1C02DFFE7FF81836A0BB4FEF6B7B1" box="[113,258,1931,1955]" collectionCode="ASIZP" country="Taiwan" httpUri="http://grbio.org/cool/zgdx-i3kf" name="Academia Sinica Institute of Zoology, Ichthyology Collection" pageId="7" pageNumber="78">ASIZP64287</specimenCode>
|
||
(
|
||
<quantity id="4CEFC5B3FFE7FF8182030BB4FE60B7B0" box="[280,404,1931,1955]" metricMagnitude="0" metricUnit="m" metricValue="1.469" pageId="7" pageNumber="78" unit="mm" value="1469.0">1, 469 mm</quantity>
|
||
TL),
|
||
<collectingMunicipality id="6BCCF22CFFE7FF8182C00BB4FDE7B7B1" box="[475,531,1931,1955]" pageId="7" pageNumber="78">Daxi</collectingMunicipality>
|
||
,
|
||
<date id="FFA94E96FFE7FF8181390BB4FD59B7B1" box="[546,685,1931,1955]" pageId="7" pageNumber="78" value="2004-07-06">
|
||
<collectingDate id="EFEDB77EFFE7FF8181390BB4FD59B7B1" box="[546,685,1931,1955]" pageId="7" pageNumber="78" value="2004-07-06">6 July 2004</collectingDate>
|
||
</date>
|
||
.
|
||
<specimenCode id="DBB1C02DFFE7FF8181A70BB4FF36B7D1" collectionCode="CAS" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15690" lsid="urn:lsid:biocol.org:col:34700" name="California Academy of Sciences" pageId="7" pageNumber="78" type="Museum">CAS 209192</specimenCode>
|
||
(
|
||
<quantity id="4CEFC5B3FFE7FF8183CC0B94FEBAB7D0" box="[215,334,1962,1987]" metricMagnitude="0" metricUnit="m" metricValue="1.58" pageId="7" pageNumber="78" unit="mm" value="1580.0">1, 580 mm</quantity>
|
||
TL),
|
||
<typeStatus id="54ACD6F4FFE7FF8182880B94FE07B7D1" box="[403,499,1963,1987]" pageId="7" pageNumber="78" type="holotype">holotype</typeStatus>
|
||
, Dong-gang,
|
||
<collectingRegion id="49D3A6B4FFE7FF8181910B94FD19B7D1" box="[650,749,1963,1987]" country="Taiwan" name="Pingtung" pageId="7" pageNumber="78">Pingtung</collectingRegion>
|
||
, SW
|
||
<collectingCountry id="F30028C6FFE7FF8183BE0BF4FF0FB7F1" box="[165,251,1995,2019]" name="Taiwan" pageId="7" pageNumber="78">Taiwan</collectingCountry>
|
||
,
|
||
<date id="FFA94E96FFE7FF8182110BF4FE2CB7F1" box="[266,472,1995,2019]" pageId="7" pageNumber="78" value="1999-02-20">
|
||
<collectingDate id="EFEDB77EFFE7FF8182110BF4FE2CB7F1" box="[266,472,1995,2019]" pageId="7" pageNumber="78" value="1999-02-20">20 February 1999</collectingDate>
|
||
</date>
|
||
.
|
||
<specimenCode id="DBB1C02DFFE7FF8182FC0BF4FD67B7F0" box="[487,659,1994,2019]" collectionCode="USNM" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" lsid="urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="7" pageNumber="78" type="Museum">USNM 356862</specimenCode>
|
||
(
|
||
<quantity id="4CEFC5B3FFE7FF8181B10BF4FF6FB810" metricMagnitude="0" metricUnit="m" metricValue="1.577" pageId="7" pageNumber="78" unit="mm" value="1577.0">1, 577 mm</quantity>
|
||
TL),
|
||
<typeStatus id="54ACD6F4FFE7FF8183C70BD4FECFB811" box="[220,315,2027,2051]" pageId="7" pageNumber="78" type="paratype">paratype</typeStatus>
|
||
, Dong-gang,
|
||
<date id="FFA94E96FFE7FF8182D60BD4FD65B811" box="[461,657,2027,2051]" pageId="7" pageNumber="78" value="1999-02-20">
|
||
<collectingDate id="EFEDB77EFFE7FF8182D60BD4FD65B811" box="[461,657,2027,2051]" pageId="7" pageNumber="78" value="1999-02-20">20 February 1999</collectingDate>
|
||
</date>
|
||
.
|
||
<taxonomicName id="4C1713D5FFE7FF8181870BD4FEFEB831" authorityName="McCosker & Ho" authorityYear="2015" class="Actinopterygii" family="Ophichthidae" genus="Echelus" kingdom="Animalia" order="Anguilliformes" pageId="7" pageNumber="78" phylum="Chordata" rank="species" species="polyspondylus">
|
||
<emphasis id="B963B444FFE7FF8181870BD4FEFEB831" italics="true" pageId="7" pageNumber="78">Echelus polyspondylus</emphasis>
|
||
</taxonomicName>
|
||
: type series listed in
|
||
<bibRefCitation id="EF8615A7FFE7FF8182F00434FD19B830" author="McCosker JE & Ho H-C" box="[491,749,2058,2083]" pageId="7" pageNumber="78" pagination="71 - 85" refId="ref6225" refString="McCosker JE & Ho H-C (2015) New species of the snake eels Echelus and Ophichthus (Anguilliformes: Ophichthidae) from Taiwan. Zootaxa, 4060 (1): 71 - 85." type="journal article" year="2015">McCosker & Ho (2015)</bibRefCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |