<documentid="CEC83BFC9135982F1BC94FCD613F7167"ID-DOI="10.12651/JSR.2024.13.2.185"ID-ISSN="2713-8615"ID-Zenodo-Dep="13344859"IM.bibliography_approvedBy="carolina"IM.illustrations_approvedBy="felipe"IM.materialsCitations_approvedBy="felipe"IM.metadata_approvedBy="felipe"IM.tables_requiresApprovalFor="GgImagineBatch"IM.taxonomicNames_approvedBy="felipe"IM.treatments_approvedBy="felipe"checkinTime="1722550107885"checkinUser="felipe"docAuthor="Lee, Il-Hoi Kim and Taekjun"docDate="2024"docId="ED1887CBFFD1FFDFFCF8B191B254638A"docLanguage="en"docName="JSpeciesRes.13.2.185-254.pdf"docOrigin="Journal of Species Research 13 (2)"docStyle="DocumentStyle:4D398BFF45FF8CA9E08F546BB06AE372.2:JSpeciesRes.2012-.journal_article"docStyleId="4D398BFF45FF8CA9E08F546BB06AE372"docStyleName="JSpeciesRes.2012-.journal_article"docStyleVersion="2"docTitle="Asterocheres nodulosus Lee, 2024, n. sp."docType="treatment"docVersion="3"lastPageNumber="236"masterDocId="1121FFB3FFFEFFEBFFD1B25AB0306275"masterDocTitle="Copepods of the genus Asterocheres Boeck, 1859 (Siphonostomatoida: Asterocheridae) from Korean waters"masterLastPageNumber="254"masterPageNumber="185"pageNumber="232"updateTime="1724091014337"updateUser="ExternalLinkService"zenodo-license-document="CC-BY-4.0">
<mods:titleid="F05F2F4C5366D36F2C37A353D11041D9">Copepods of the genus Asterocheres Boeck, 1859 (Siphonostomatoida: Asterocheridae) from Korean waters</mods:title>
<figureCitationid="FD8A2A58FFD1FFC4FBACB191B5306196"box="[1149,1280,971,995]"captionStart-0="Fig"captionStart-1="Fig"captionStart-2="Fig"captionStartId-0="48.[174,207,1922,1944]"captionStartId-1="49.[144,177,1592,1614]"captionStartId-2="50.[174,207,1926,1948]"captionTargetBox-0="[276,1347,267,1863]"captionTargetBox-1="[265,1295,260,1551]"captionTargetBox-2="[268,1350,259,1877]"captionTargetId-0="figure-13@48.[192,1447,254,1892]"captionTargetId-1="figure-167@49.[175,1413,254,1561]"captionTargetId-2="figure-13@50.[171,1447,254,1892]"captionTargetPageId-0="48"captionTargetPageId-1="49"captionTargetPageId-2="50"captionText-0="Fig. 30. Asterocheres nodulosus n. sp., female. A, habitus, dorsal; B, urosome, dorsal; C, right caudal ramus, ventral; D, rostrum; E, antennule; F, antenna; G, oral siphon; H, mandible; I, maxillule; J, maxilla; K, maxilliped. Scale bars: A, 0.1 mm; B, E, G, H, 0.05 mm; C, D, F, I-K, 0.02 mm."captionText-1="Fig. 31. Asterocheres nodulosus n. sp., female. A, leg 1; B, leg 2; C, endopod of leg 3; D, leg 4; E, exopod of leg 5; F, left side of genital double-somite, dorsal. Scale bars: A-D, 0.05mm; E, F, 0.02mm."captionText-2="Fig. 32. Asterocheres nodulosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, antennule; D, maxilliped; E, endopod of leg 2; F, endopod of leg 3; G, exopod of leg 5; H, leg 6. Scale bars:A, 0.1mm; B, 0.05 mm; C-H, 0.02 mm."figureDoi-0="http://doi.org/10.5281/zenodo.13344921"figureDoi-1="http://doi.org/10.5281/zenodo.13344923"figureDoi-2="http://doi.org/10.5281/zenodo.13344925"httpUri-0="https://zenodo.org/record/13344921/files/figure.png"httpUri-1="https://zenodo.org/record/13344923/files/figure.png"httpUri-2="https://zenodo.org/record/13344925/files/figure.png"pageId="47"pageNumber="232">Figs. 30-32</figureCitation>
<collectingDateid="014BE9F5FFD1FFC4FCADB6B7B41E6770"box="[892,1070,1261,1285]"pageId="47"pageNumber="232"value="2018-08-29">29 August 2018</collectingDate>
</date>
</materialsCitation>
.
<materialsCitationid="D5D93C80FFD1FFC4FBEAB6B7B4CF6713"collectionCode="NIBR"collectorName="Dissected & I. - H. Kim"country="South Korea"location="National Institute of Biological Resources"pageId="47"pageNumber="232"specimenCount="3"stateProvince="Incheon"typeStatus="holotype">
<locationid="606E6006FFD1FFC4FB83B757B3F56730"LSID="urn:lsid:plazi:treatment:ED1887CBFFD1FFDFFCF8B191B254638A:606E6006FFD1FFC4FB83B757B3F56730"country="South Korea"name="National Institute of Biological Resources"pageId="47"pageNumber="232"stateProvince="Incheon">National Institute of Biological Resources</location>
(
<collectionCodeid="03A0AE18FFD1FFC4FC03B774B4276733"box="[978,1047,1326,1350]"country="South Korea"httpUri="http://grbio.org/cool/r4iq-k5jx"name="National Institute of Biological Resources"pageId="47"pageNumber="232">NIBR</collectionCode>
) as usual for genus. Body length 793 μm in figured and described specimen. Other 4 measured specimens 695, 730, 755, and 840 μm, respectively. Prosome 549 μm long. Cephalothorax wider than long (364 × 436 μm). All prosomal somites with rounded posterolateral corners. Urosome (
) 4-segmented. Fifth pedigerous somite wider than genital double-somite, with spinules on lateral surfaces. Genital double-somite slightly wider than long (108 × 110 μm); genital apertures positioned dorsolaterally at 47% region of double-somite length; postgenital lateral margin bearing 2 groups of spinules consisting of 13 or 14 thin spinules of anterior group and 4 thicker spinules of posterior group (
<figureCitationid="FD8A2A58FFD1FFC4FC0DB529B40D65FE"box="[988,1085,1907,1931]"captionStart="Fig"captionStartId="49.[144,177,1592,1614]"captionTargetBox="[265,1295,260,1551]"captionTargetId="figure-167@49.[175,1413,254,1561]"captionTargetPageId="49"captionText="Fig. 31. Asterocheres nodulosus n. sp., female. A, leg 1; B, leg 2; C, endopod of leg 3; D, leg 4; E, exopod of leg 5; F, left side of genital double-somite, dorsal. Scale bars: A-D, 0.05mm; E, F, 0.02mm."figureDoi="http://doi.org/10.5281/zenodo.13344923"httpUri="https://zenodo.org/record/13344923/files/figure.png"pageId="47"pageNumber="232">Fig. 31F</figureCitation>
). Two free abdominal somites 36× 66 and 38 × 58 μm, respectively. Genital double-somite and first free abdominal somite bearing row of minute spinules along posterodorsal margin. Anal somite with row of spinules along posteroventral margin (
). Caudal ramus 1.08 times longer than wide (28× 26 μm), armed with 6 setae and ornamented with few scales on outer and inner margins and row of spinules on posteroventral margin.
, female. A, leg 1; B, leg 2; C, endopod of leg 3; D, leg 4; E, exopod of leg 5; F, left side of genital double-somite, dorsal. Scale bars: A- D, 0.05 mm; E, F, 0.02 mm.
) 320 μm long, 21-segmented; 9th, 18th, 20th, and terminal segments with 7 setae, 2 setae + aesthetasc, 4 setae, and 7 setae, respectively; other segments each with 2 setae. First segment with several spinules on anterior margin; some of setae on anterior segments pinnate; one of setae on 9th and 19th segments with crack-like transverse lines; some of setae on proximal segments truncated and tipped with minute setule. Antenna (
) consisting of coxa, basis, small exopod, and 3-segmented endopod; coxa with several spinules on outer margin; basis with longitudinal row of needle-like minute spinules near outer margin and few spinules on inner margin; first endopodal segment 57 μm long, with setules on outer margin; small second endopodal segment bearing 1 seta; third endopodal segment bearing 2 setae, 1 spinule-like, minute seta; terminal claw spiniform, 54 μm long.
, male. A, habitus, dorsal; B, urosome, ventral; C, antennule; D, maxilliped; E, endopod of leg 2; F, endopod of leg 3; G, exopod of leg 5; H, leg 6. Scale bars: A, 0.1 mm; B, 0.05 mm; C- H, 0.02 mm.
) consisting of coxal stylet and palp; stylet 180 μm long, bearing row of 12 teeth at distal region; palp 1-segment- ed, 56 μm long, tipped with 1 long (159 μm long) and 1 shorter (68 μm long) setae, both setae weakly pinnate; palp plus longer distal seta 1.19 times longer than stylet. Maxillule (
) bilobed; inner lobe about 59 μm long, tipped with 4 large and 1 rudimentary setae (lengths of 4 large setae 83, 85, 75, and 50 μm, respectively, from inner to outer); outer lobe 21 μm long tipped with 4 setae, lengths of these 4 setae 65, 65, 45, and 25 μm, respectively. Maxilla (
) 2-segmented; proximal segment (syncoxa) bearing excretory tube and row of fine spinules at proximal region; distal segment (basis) as long as proximal segment bearing 1 group of setules at distal third and row of minute spinules along distal third. Maxilliped (
) consisting of coxa, basis, and 4-segmented endopod; coxa with 1 small seta subdistally on inner margin and several minute spinules at outer distal corner; basis unarmed but with minute spinules on outer margin; endopodal segments with 2, 1, 1, and 1 setae, respectively. Terminal segment 35 μm long and terminal claw of 61 μm long.
<figureCitationid="FD8A2A58FFCDFFD8FED1B6B7B1576770"box="[256,359,1261,1285]"captionStart="Fig"captionStartId="49.[144,177,1592,1614]"captionTargetBox="[265,1295,260,1551]"captionTargetId="figure-167@49.[175,1413,254,1561]"captionTargetPageId="49"captionText="Fig. 31. Asterocheres nodulosus n. sp., female. A, leg 1; B, leg 2; C, endopod of leg 3; D, leg 4; E, exopod of leg 5; F, left side of genital double-somite, dorsal. Scale bars: A-D, 0.05mm; E, F, 0.02mm."figureDoi="http://doi.org/10.5281/zenodo.13344923"httpUri="https://zenodo.org/record/13344923/files/figure.png"pageId="51"pageNumber="236">Fig. 31A</figureCitation>
<figureCitationid="FD8A2A58FFCDFFD8FE48B6B7B1CE6770"box="[409,510,1261,1285]"captionStart="Fig"captionStartId="49.[144,177,1592,1614]"captionTargetBox="[265,1295,260,1551]"captionTargetId="figure-167@49.[175,1413,254,1561]"captionTargetPageId="49"captionText="Fig. 31. Asterocheres nodulosus n. sp., female. A, leg 1; B, leg 2; C, endopod of leg 3; D, leg 4; E, exopod of leg 5; F, left side of genital double-somite, dorsal. Scale bars: A-D, 0.05mm; E, F, 0.02mm."figureDoi="http://doi.org/10.5281/zenodo.13344923"httpUri="https://zenodo.org/record/13344923/files/figure.png"pageId="51"pageNumber="236">Fig. 31B</figureCitation>
<figureCitationid="FD8A2A58FFCDFFD8FDAEB6B7B2D46770"box="[639,740,1261,1285]"captionStart="Fig"captionStartId="49.[144,177,1592,1614]"captionTargetBox="[265,1295,260,1551]"captionTargetId="figure-167@49.[175,1413,254,1561]"captionTargetPageId="49"captionText="Fig. 31. Asterocheres nodulosus n. sp., female. A, leg 1; B, leg 2; C, endopod of leg 3; D, leg 4; E, exopod of leg 5; F, left side of genital double-somite, dorsal. Scale bars: A-D, 0.05mm; E, F, 0.02mm."figureDoi="http://doi.org/10.5281/zenodo.13344923"httpUri="https://zenodo.org/record/13344923/files/figure.png"pageId="51"pageNumber="236">Fig. 31D</figureCitation>
<figureCitationid="FD8A2A58FFCDFFD8FF03B714B1056713"box="[210,309,1358,1382]"captionStart="Fig"captionStartId="49.[144,177,1592,1614]"captionTargetBox="[265,1295,260,1551]"captionTargetId="figure-167@49.[175,1413,254,1561]"captionTargetPageId="49"captionText="Fig. 31. Asterocheres nodulosus n. sp., female. A, leg 1; B, leg 2; C, endopod of leg 3; D, leg 4; E, exopod of leg 5; F, left side of genital double-somite, dorsal. Scale bars: A-D, 0.05mm; E, F, 0.02mm."figureDoi="http://doi.org/10.5281/zenodo.13344923"httpUri="https://zenodo.org/record/13344923/files/figure.png"pageId="51"pageNumber="236">Fig. 31C</figureCitation>
). Intercoxal plate of legs 1-3 with small spinules, but smooth in leg 4. Inner coxal seta of leg 1 small but pinnate, that of leg 4 naked, rudimentary. Out- er seta on basis of leg 1 elongated, that of leg 4 short. Inner distal margin of basis of leg 1 bearing spinules. Armature formula for legs 1-4 same as that of
<figureCitationid="FD8A2A58FFCDFFD8FF04B42AB10964FC"box="[213,313,1648,1673]"captionStart="Fig"captionStartId="49.[144,177,1592,1614]"captionTargetBox="[265,1295,260,1551]"captionTargetId="figure-167@49.[175,1413,254,1561]"captionTargetPageId="49"captionText="Fig. 31. Asterocheres nodulosus n. sp., female. A, leg 1; B, leg 2; C, endopod of leg 3; D, leg 4; E, exopod of leg 5; F, left side of genital double-somite, dorsal. Scale bars: A-D, 0.05mm; E, F, 0.02mm."figureDoi="http://doi.org/10.5281/zenodo.13344923"httpUri="https://zenodo.org/record/13344923/files/figure.png"pageId="51"pageNumber="236">Fig. 31E</figureCitation>
) 2.14 times longer than wide (47 × 22 μm), bearing spinules on convex inner and outer margins and armed with 3 unequal setae; lengths of these setae 58, 38, and 22 μm, respectively, from outer to inner; longer outermost seta pinnate, other setae naked. Leg 6 (
<figureCitationid="FD8A2A58FFCDFFD8FF49B548B0C6655F"box="[152,246,1810,1834]"captionStart="Fig"captionStartId="49.[144,177,1592,1614]"captionTargetBox="[265,1295,260,1551]"captionTargetId="figure-167@49.[175,1413,254,1561]"captionTargetPageId="49"captionText="Fig. 31. Asterocheres nodulosus n. sp., female. A, leg 1; B, leg 2; C, endopod of leg 3; D, leg 4; E, exopod of leg 5; F, left side of genital double-somite, dorsal. Scale bars: A-D, 0.05mm; E, F, 0.02mm."figureDoi="http://doi.org/10.5281/zenodo.13344923"httpUri="https://zenodo.org/record/13344923/files/figure.png"pageId="51"pageNumber="236">Fig. 31F</figureCitation>
<figureCitationid="FD8A2A58FFCDFFD8FEF7B508B1BE651F"box="[294,398,1874,1898]"captionStart="Fig"captionStartId="50.[174,207,1926,1948]"captionTargetBox="[268,1350,259,1877]"captionTargetId="figure-13@50.[171,1447,254,1892]"captionTargetPageId="50"captionText="Fig. 32. Asterocheres nodulosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, antennule; D, maxilliped; E, endopod of leg 2; F, endopod of leg 3; G, exopod of leg 5; H, leg 6. Scale bars:A, 0.1mm; B, 0.05 mm; C-H, 0.02 mm."figureDoi="http://doi.org/10.5281/zenodo.13344925"httpUri="https://zenodo.org/record/13344925/files/figure.png"pageId="51"pageNumber="236">Fig. 32A</figureCitation>
<figureCitationid="FD8A2A58FFCDFFD8FF49B5C9B0C865DE"box="[152,248,1939,1963]"captionStart="Fig"captionStartId="50.[174,207,1926,1948]"captionTargetBox="[268,1350,259,1877]"captionTargetId="figure-13@50.[171,1447,254,1892]"captionTargetPageId="50"captionText="Fig. 32. Asterocheres nodulosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, antennule; D, maxilliped; E, endopod of leg 2; F, endopod of leg 3; G, exopod of leg 5; H, leg 6. Scale bars:A, 0.1mm; B, 0.05 mm; C-H, 0.02 mm."figureDoi="http://doi.org/10.5281/zenodo.13344925"httpUri="https://zenodo.org/record/13344925/files/figure.png"pageId="51"pageNumber="236">Fig. 32B</figureCitation>
<figureCitationid="FD8A2A58FFCDFFD8FB6FB33CB512630B"box="[1214,1314,358,382]"captionStart="Fig"captionStartId="50.[174,207,1926,1948]"captionTargetBox="[268,1350,259,1877]"captionTargetId="figure-13@50.[171,1447,254,1892]"captionTargetPageId="50"captionText="Fig. 32. Asterocheres nodulosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, antennule; D, maxilliped; E, endopod of leg 2; F, endopod of leg 3; G, exopod of leg 5; H, leg 6. Scale bars:A, 0.1mm; B, 0.05 mm; C-H, 0.02 mm."figureDoi="http://doi.org/10.5281/zenodo.13344925"httpUri="https://zenodo.org/record/13344925/files/figure.png"pageId="51"pageNumber="236">Fig. 32C</figureCitation>
) 18-segmented, with weak geniculation between 15th and 16th segments and strong geniculation between 16th and 17th segments; 9th, 13th, 17th, and terminal segments with 7 setae, 2 setae+ aesthetasc, 2 setae + aesthetasc, and 10 setae, respectively; other segment with 2 setae each; first segment with setules and spinules on anterior margin. Antenna as in female.
<figureCitationid="FD8A2A58FFCDFFD8FC7CB0D2B42260D5"box="[941,1042,648,672]"captionStart="Fig"captionStartId="50.[174,207,1926,1948]"captionTargetBox="[268,1350,259,1877]"captionTargetId="figure-13@50.[171,1447,254,1892]"captionTargetPageId="50"captionText="Fig. 32. Asterocheres nodulosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, antennule; D, maxilliped; E, endopod of leg 2; F, endopod of leg 3; G, exopod of leg 5; H, leg 6. Scale bars:A, 0.1mm; B, 0.05 mm; C-H, 0.02 mm."figureDoi="http://doi.org/10.5281/zenodo.13344925"httpUri="https://zenodo.org/record/13344925/files/figure.png"pageId="51"pageNumber="236">Fig. 32D</figureCitation>
<figureCitationid="FD8A2A58FFCDFFD8FC1CB153B41F6154"box="[973,1071,777,801]"captionStart="Fig"captionStartId="50.[174,207,1926,1948]"captionTargetBox="[268,1350,259,1877]"captionTargetId="figure-13@50.[171,1447,254,1892]"captionTargetPageId="50"captionText="Fig. 32. Asterocheres nodulosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, antennule; D, maxilliped; E, endopod of leg 2; F, endopod of leg 3; G, exopod of leg 5; H, leg 6. Scale bars:A, 0.1mm; B, 0.05 mm; C-H, 0.02 mm."figureDoi="http://doi.org/10.5281/zenodo.13344925"httpUri="https://zenodo.org/record/13344925/files/figure.png"pageId="51"pageNumber="236">Fig. 32E</figureCitation>
<figureCitationid="FD8A2A58FFCDFFD8FA8BB110B36461F7"captionStart="Fig"captionStartId="50.[174,207,1926,1948]"captionTargetBox="[268,1350,259,1877]"captionTargetId="figure-13@50.[171,1447,254,1892]"captionTargetPageId="50"captionText="Fig. 32. Asterocheres nodulosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, antennule; D, maxilliped; E, endopod of leg 2; F, endopod of leg 3; G, exopod of leg 5; H, leg 6. Scale bars:A, 0.1mm; B, 0.05 mm; C-H, 0.02 mm."figureDoi="http://doi.org/10.5281/zenodo.13344925"httpUri="https://zenodo.org/record/13344925/files/figure.png"pageId="51"pageNumber="236">Fig. 32F</figureCitation>
<figureCitationid="FD8A2A58FFCDFFD8FBA1B1F1B4E361B6"box="[1136,1235,939,963]"captionStart="Fig"captionStartId="50.[174,207,1926,1948]"captionTargetBox="[268,1350,259,1877]"captionTargetId="figure-13@50.[171,1447,254,1892]"captionTargetPageId="50"captionText="Fig. 32. Asterocheres nodulosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, antennule; D, maxilliped; E, endopod of leg 2; F, endopod of leg 3; G, exopod of leg 5; H, leg 6. Scale bars:A, 0.1mm; B, 0.05 mm; C-H, 0.02 mm."figureDoi="http://doi.org/10.5281/zenodo.13344925"httpUri="https://zenodo.org/record/13344925/files/figure.png"pageId="51"pageNumber="236">Fig. 32G</figureCitation>
) 2.17 times longer than wide (26 × 12 μm), shaped and ornamented as that of female, bearing 2 pinnate distal setae and 1 naked mediodistal seta; lengths of these setae 43, 34, and 21μm long, respectively, from outer to inner. Leg 6 (
<figureCitationid="FD8A2A58FFCDFFD8FA8BB676B3696611"captionStart="Fig"captionStartId="50.[174,207,1926,1948]"captionTargetBox="[268,1350,259,1877]"captionTargetId="figure-13@50.[171,1447,254,1892]"captionTargetPageId="50"captionText="Fig. 32. Asterocheres nodulosus n. sp., male. A, habitus, dorsal; B, urosome, ventral; C, antennule; D, maxilliped; E, endopod of leg 2; F, endopod of leg 3; G, exopod of leg 5; H, leg 6. Scale bars:A, 0.1mm; B, 0.05 mm; C-H, 0.02 mm."figureDoi="http://doi.org/10.5281/zenodo.13344925"httpUri="https://zenodo.org/record/13344925/files/figure.png"pageId="51"pageNumber="236">Fig. 32H</figureCitation>
each sharing 13 same character states in 17 characters with the new species (see
<tableCitationid="28330366FFCDFFD8FC5AB774B3EE6733"box="[907,990,1326,1350]"captionStart="Table 2"captionStartId="2.[92,145,474,499]"captionText="Table 2. A character matrix of Asterocheres species (“-” indicates missing data)."pageId="51"pageNumber="236">Table 2</tableCitation>
). These three species are distinguished from the new species by the following features:
has the terminal claw of the female antenna which is distinctly longer than the first endopodal segment and the exopodal segment of female leg 5 which is 2.83 times longer than wide.
has a longer oral siphon which extends to leg 1, a 2-segmented mandibular palp, and the exopodal segment of female leg 5 which is 2.90 times longer than wide (
<bibRefCitationid="01204B2CFFCDFFD8FC4CB4CBB42564DC"author="Kim, I. - H."box="[925,1045,1681,1705]"pageId="51"pageNumber="236"pagination="393 - 442"refId="ref37874"refString="Kim, I. - H. 2016. Siphonostomatoid copepods (Crustacea) mainly associated with marine invertebrates from Kore- an waters. Journal of Species Research 5 (3): 393 - 442."type="journal article"year="2016">Kim, 2016</bibRefCitation>
can be confirmed by their different forms of legs 2 and 3 of the male, as follows: (1) in the third endopod of male leg 2, the outer distal process is expanded with a small tubercle in
; and finally, the presence of a nodule-like proximal expansion on the inner distal seta of the third endopodal segment of male leg 2 is a unique feature of