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<document ID-CLB-Dataset="6073" ID-DOI="http://dx.doi.org/10.3897/zookeys.1043.64438" ID-GBIF-Dataset="1cbd52e0-cd9d-41a1-a77b-036a49e9cf81" ID-PMC="PMC8222197" ID-Pensoft-Pub="1313-2970-1043-147" ID-Pensoft-UUID="D839C1602FC95ADDA0C8EB4A7651C892" ID-PubMed="34177308" ID-ZooBank="E4AD2746040E4CD6ABCA5806FFA422CF" ModsDocID="1313-2970-1043-147" checkinTime="1623788852491" checkinUser="pensoft" docAuthor="Cho, Kyuhee, Park, Chailinn &amp; Boettger-Schnack, Ruth" docDate="2021" docId="FDA6A7FE59DA5F958FAC11E5C585494E" docLanguage="en" docName="ZooKeys 1043: 147-191" docOrigin="ZooKeys 1043" docPubDate="2021-06-15" docSource="http://dx.doi.org/10.3897/zookeys.1043.64438" docTitle="Spinoncaea humesi Boettger-Schnack 2003" docType="treatment" docVersion="7" id="D839C1602FC95ADDA0C8EB4A7651C892" lastPageNumber="147" masterDocId="D839C1602FC95ADDA0C8EB4A7651C892" masterDocTitle="Taxonomy of three species of the genus Spinoncaea (Copepoda, Oncaeidae) in the North Pacific Ocean with focus on morphological variability" masterLastPageNumber="191" masterPageNumber="147" pageNumber="147" updateTime="1732826186813" updateUser="ExternalLinkService">
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<mods:title id="84C9A1CF220F7A50B8B8CFCA373FCDF8">Taxonomy of three species of the genus Spinoncaea (Copepoda, Oncaeidae) in the North Pacific Ocean with focus on morphological variability</mods:title>
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<mods:namePart id="1DA9FBB90599039C7D84FA4047080408">Cho, Kyuhee</mods:namePart>
<mods:affiliation id="45D64605302A0ED1E4678DB01321021F">Marine Ecosystem Research Center, Korea Institute of Ocean Science &amp; Technology, Busan, Republic of Korea</mods:affiliation>
<mods:nameIdentifier id="5BDAD6300F59648B0519B310BE2AFD36" type="email">chokh@kiost.ac.kr</mods:nameIdentifier>
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<mods:namePart id="2BC01249265841E4535C66C53F16AD8A">Park, Chailinn</mods:namePart>
<mods:affiliation id="4502D745530344A4BB52D033A4726C81">Global Ocean Research Center, Korea Institute of Ocean Science &amp; Technology, Busan, Republic of Korea &amp; Department of Ocean Science, University of Science and Technology, Daejeon, Republic of Korea</mods:affiliation>
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<mods:namePart id="9B61F3E1AD499F6834DB1071E3E3168C">Boettger-Schnack, Ruth</mods:namePart>
<mods:affiliation id="4B918CFF9F0CCDDB579FD489146C5188">GEOMAR Helmholtz-Centre for Ocean Research Kiel, Kiel, Germany</mods:affiliation>
<mods:nameIdentifier id="B69EA16FF6B1CA708FACB4F95120E300" type="email">dschnack@ifm-geomar.de</mods:nameIdentifier>
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<treatment id="FDA6A7FE59DA5F958FAC11E5C585494E" ID-GBIF-Taxon="182751354" LSID="urn:lsid:plazi:treatment:FDA6A7FE59DA5F958FAC11E5C585494E" httpUri="http://treatment.plazi.org/id/FDA6A7FE59DA5F958FAC11E5C585494E" lastPageNumber="147" pageId="0" pageNumber="147" scope_class="Copepoda" scope_order="Cyclopoida">
<subSubSection id="F3E93FFC3178E7F2C3D18ABBB4A7C1B4" pageId="0" pageNumber="147" type="nomenclature">
<paragraph id="B9D4DD8F7224425B772C927B2E5F0506" pageId="0" pageNumber="147">
<taxonomicName id="FE1AFCB7EEC58E35312A8CF5C6C5912C" ID-CoL="4Z5SX" LSID="FDA6A7FE-59DA-5F95-8FAC-11E5C585494E" authority="Boettger-Schnack, 2003" authorityName="Boettger-Schnack" authorityYear="2003" class="Copepoda" family="Oncaeidae" genus="Spinoncaea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Spinoncaea humesi" order="Cyclopoida" pageId="0" pageNumber="147" phylum="Arthropoda" rank="species" species="humesi">
Spinoncaea humesi
<normalizedToken id="9F2F96772AA1E838F5B517737A250F3E" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
, 2003
</taxonomicName>
<figureCitation id="BDD196F3FEE96AF3F7B4398E93927348" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">Figs 12</figureCitation>
<figureCitation id="AA128F6F561F4F7206A3CF34DCE38473" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A antennule (segments 4 - 6 drawn from another specimen) B antenna C mandible D maxillule E maxilla, arrows indicating spinules F maxilliped, anterior G labrum, posterior, showing some ornamentation on anterior side. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure13" httpUri="https://binary.pensoft.net/fig/555770" pageId="0" pageNumber="147">, 13</figureCitation>
<figureCitation id="12206D98F20277B0549E6AC708DF9C3C" captionStart="Figure 14" captionStartId="F14" captionText="Figure 14. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A P 1, anterior B P 2, posterior C P 3, anterior D P 4, posterior, basal seta of another specimen figured separately. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure14" httpUri="https://binary.pensoft.net/fig/555771" pageId="0" pageNumber="147">, 14</figureCitation>
<figureCitation id="1698EC23C84816240B6C3DDB3315F3C1" captionStart="Figure 15" captionStartId="F15" captionText="Figure 15. Spinoncaea humesi Boettger-Schnack, 2003, male (northwestern equatorial Pacific) A habitus, dorsal (caudal seta V on right side missing) B habitus, lateral C urosome, dorsal (caudal seta V on right side missing) D urosome, ventral (caudal seta V on right side missing) E urosome, lateral F antennule G maxilliped, anterior H maxilliped, middle. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure15" httpUri="https://binary.pensoft.net/fig/555772" pageId="0" pageNumber="147">, 15</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="E238E54B260480EF4E46AB8BD10F6A54" pageId="0" pageNumber="147" type="reference_group">
<paragraph id="85F2302DE463E3FEF503B3F881E0BC95" pageId="0" pageNumber="147">
<taxonomicName id="4BF603ECCBB3D98932B133128B9E9F6A" authorityName="Boettger-Schnack" authorityYear="2003" class="Copepoda" family="Oncaeidae" genus="Spinoncaea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Spinoncaea humesi" order="Cyclopoida" pageId="0" pageNumber="147" phylum="Arthropoda" rank="species" species="humesi">Spinoncaea humesi</taxonomicName>
<normalizedToken id="D7A34307AC8D46E1BBD8E051CB65FAA3" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
, 2003: 208-215, figs 8-11 (Red Sea, Mediterranean, Indian and Pacific oceans).
</paragraph>
</subSubSection>
<subSubSection id="740768A2EB0CC6E30D5FF2E1174F9445" pageId="0" pageNumber="147" type="materials_examined">
<paragraph id="7F46A56B0E5F474A5DEDCAE1C3486FB4" pageId="0" pageNumber="147">Material examined.</paragraph>
<paragraph id="385E9CD0C7403FBF157FC694ECE45F37" pageId="0" pageNumber="147">
(1)
<materialsCitation id="3667413E639666803878894A6DC8F0CD" collectingDate="2008-10-07" collectingDateMax="2019-03-19" collectingDateMin="2008-10-07" country="Korea" latitude="33.74736" location="Northeastern Pacific" longLatPrecision="1" longitude="128.26083" municipality="Northwestern Pacific" specimenCount="1">
<location id="F1B4A2DC977077A6C3DFB44275002F4B" LSID="urn:lsid:plazi:treatment:FDA6A7FE59DA5F958FAC11E5C585494E:F1B4A2DC977077A6C3DFB44275002F4B" country="Korea" latitude="33.74736" longLatPrecision="1" longitude="128.26083" municipality="Northwestern Pacific" name="Northeastern Pacific">Northeastern Pacific</location>
,
<geoCoordinate id="677E0AE9D097095948F44C19764A19B2" degrees="9" direction="north" minutes="52" orientation="latitude" precision="1" seconds="1.38" value="9.86705">9°52'1.38&quot;N</geoCoordinate>
,
<geoCoordinate id="047CB7F7F7C815F3D6A742742A8952E7" degrees="131" direction="west" minutes="45" orientation="longitude" precision="1" seconds="38.28" value="-131.76064">131°45'38.28&quot;W</geoCoordinate>
(EP-2),
<collectingDate id="697D5F3B240AE3C1F6D479110D3C1AC4" value="2019-03-19">19 March 2019</collectingDate>
. Three females dissected on three or seven slides, respectively. Two dissected females (NIBRIV0000882796-882797) and two undissected females (in alcohol, NIBRIV0000882798) were deposited in the NIBR. (2)
<collectingMunicipality id="4219BBC1BB6D03ED7C58F9185C1599A3">Northwestern Pacific</collectingMunicipality>
(a)
<geoCoordinate id="25533D12453E17B7F8DE4E5421084FFA" degrees="13" direction="north" minutes="23" orientation="latitude" precision="1" seconds="46.44" value="13.396234">13°23'46.44&quot;N</geoCoordinate>
,
<geoCoordinate id="AC00926281B54770F2EC8CE30F718162" degrees="143" direction="east" minutes="55" orientation="longitude" precision="1" seconds="0.60" value="143.91684">143°55'0.60&quot;E</geoCoordinate>
(WP-1),
<collectingDate id="80CB9934B18E4DEB40EB861E311DB992" value="2016-03-27">27 March 2016</collectingDate>
: Two males dissected on one or three slides, respectively. All dissected specimens (NIBRIV0000882799-882800) were deposited in the NIBR. (b)
<geoCoordinate id="D5A2945900D4BE539112A938AFE1D35A" degrees="13" direction="north" minutes="20" orientation="latitude" precision="1" seconds="3.42" value="13.334283">13°20'3.42&quot;N</geoCoordinate>
,
<geoCoordinate id="2D79882927EDA24DC03DD43D9933484C" degrees="144" direction="east" minutes="20" orientation="longitude" precision="1" seconds="2.7" value="144.33408">144°20'2.7&quot;E</geoCoordinate>
(WP-2),
<collectingDate id="73F75348CB7574BC625D07E098573308" value="2016-04-04">4 April 2016</collectingDate>
. One undissected male in alcohol (NIBRIV0000882801) was deposited in the NIBR. (3)
<collectingCountry id="6B6E1EC4C09B9DF19C5F98110B9338A1" name="South Korea">Korea</collectingCountry>
Strait,
<geoCoordinate id="F2BAA4DF02232C1E58639924018C9EE5" degrees="33" direction="north" minutes="44" orientation="latitude" precision="1" seconds="50.50" value="33.74736">33°44'50.50&quot;N</geoCoordinate>
,
<geoCoordinate id="135CE818E8BA1AC8199C28B8CD1C23DC" degrees="128" direction="east" minutes="15" orientation="longitude" precision="1" seconds="39.02" value="128.26083">128°15'39.02&quot;E</geoCoordinate>
(KS),
<collectingDate id="42651CFB8C4D82F72C447C4746B1D9B5" value="2008-10-07">7 October 2008</collectingDate>
: One dissected male (NIBRIV0000882802) on H-S slide, and one undissected female and one undissected male in alcohol vial (NIBRIV0000882803) were deposited in the NIBR
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="B13A6360E6351477BAB26453305B13AF" pageId="0" pageNumber="147" type="description">
<paragraph id="271A1261C519E4FDA1BB4E37A228BAB0" pageId="0" pageNumber="147">Description.</paragraph>
<paragraph id="3F4185A1BCDAB41B68D1F87CD75CB0DE" pageId="0" pageNumber="147">
<emphasis id="97F37EEFA103A72D1588D3346C356249" bold="true" pageId="0" pageNumber="147">
Female (Figs
<figureCitation id="16EA754D35E71C95C4B7EBF9B6C6EDC5" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12</figureCitation>
-
<figureCitation id="456AA54F9C7C7CEC4C2A97B67EB13EE5" captionStart="Figure 14" captionStartId="F14" captionText="Figure 14. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A P 1, anterior B P 2, posterior C P 3, anterior D P 4, posterior, basal seta of another specimen figured separately. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure14" httpUri="https://binary.pensoft.net/fig/555771" pageId="0" pageNumber="147">14</figureCitation>
, Tables
<tableCitation id="C95922E64FABE72CAFEA856AD7F4AA67" captionStart="Table 3" captionStartId="T3" captionText="Table 3. Variation in morphometric traits for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations in the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait; n = number of specimens examined) Abbreviations: A 2 = antenna; AS = anal somite; CR = caudal ramus, for numbering of setae see Fig. 2 C; DES = distal endopod segment; DS = distal spine; G (D) S = genital (double-) somite; in = inner margin; out = outer margin; L = length; PGS = postgenital somites; Pro = prosome; Uro = urosome; W = width." httpUri="http://table.plazi.org/id/B297CA274A18EE7ABF3696829E372662" pageId="0" pageNumber="147" tableUuid="B297CA274A18EE7ABF3696829E372662">3</tableCitation>
,
<tableCitation id="B6F38EEFAF50D2B61CA867D15032ACBF" captionStart="Table 4" captionStartId="T4" captionText="Table 4. Variation in proportional spine lengths on P 2 - P 4 for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations of the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait, n = number of specimens measured) Abbreviations: DS = distal spine; L = length; MS = middle spine; ODS = outer distal spine; OSDS = outer subdistal spine; PS = proximal spine; SP = spine; W = width." httpUri="http://table.plazi.org/id/C31DA3DB9644D3B1EF4CFC460518BFD1" pageId="0" pageNumber="147" tableUuid="C31DA3DB9644D3B1EF4CFC460518BFD1">4</tableCitation>
).
</emphasis>
Body length in lateral view (telescoping of somites not considered) (Fig.
<figureCitation id="A4C7442C8D95755FEB3769385A2A116A" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12B</figureCitation>
) 344-348
<normalizedToken id="042E8EB31B1DACDE452429DBE87ED17F" originalValue="µm">µm</normalizedToken>
in northeastern Pacific (Table
<tableCitation id="2218E86F736796FB0B3709EFE74E192B" captionStart="Table 3" captionStartId="T3" captionText="Table 3. Variation in morphometric traits for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations in the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait; n = number of specimens examined) Abbreviations: A 2 = antenna; AS = anal somite; CR = caudal ramus, for numbering of setae see Fig. 2 C; DES = distal endopod segment; DS = distal spine; G (D) S = genital (double-) somite; in = inner margin; out = outer margin; L = length; PGS = postgenital somites; Pro = prosome; Uro = urosome; W = width." httpUri="http://table.plazi.org/id/B297CA274A18EE7ABF3696829E372662" pageId="0" pageNumber="147" tableUuid="B297CA274A18EE7ABF3696829E372662">3</tableCitation>
), somewhat larger than in the Red Sea (310-320
<normalizedToken id="8E249E4DD67E92B5A0BCB0F0B8926F81" originalValue="µm">µm</normalizedToken>
,
<bibRefCitation id="6DCE5022591F7EFA1553DF176BB92C71" DOI="https://doi.org/10.1046/j.1096-3642.2003.00056.x" author="Boettger-Schnack, R" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="147" pagination="187 - 226" refId="B5" refString="Boettger-Schnack, R, 2003. Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi -group), with notes on zoogeographical distribution. Zoological Journal of the Linnean Society 137 (2): 187 - 226, DOI: https://doi.org/10.1046/j.1096-3642.2003.00056.x" title="Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi - group), with notes on zoogeographical distribution." url="https://doi.org/10.1046/j.1096-3642.2003.00056.x" volume="137" year="2003">
<normalizedToken id="F81285B0A46B29CD14F782079BD8C90A" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
2003
</bibRefCitation>
: 208).
</paragraph>
<paragraph id="12838B7660B2D4122FAFE4C01CDB466F" pageId="0" pageNumber="147">
Prosome 1.7
<normalizedToken id="143521D7243532202711EC15C0BD958C" originalValue="×">x</normalizedToken>
length of urosome, excluding caudal rami, 1.3-1.4
<normalizedToken id="FEAB735D80BB8381A52A10EE5DA9138F" originalValue="×">x</normalizedToken>
urosome length including caudal rami (Fig.
<figureCitation id="5A6CC5E6B6FB9921E16DBB9B17AC8CB5" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12B</figureCitation>
, Table
<tableCitation id="642659D221E3ED9DEC6B37B33F3E7651" captionStart="Table 3" captionStartId="T3" captionText="Table 3. Variation in morphometric traits for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations in the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait; n = number of specimens examined) Abbreviations: A 2 = antenna; AS = anal somite; CR = caudal ramus, for numbering of setae see Fig. 2 C; DES = distal endopod segment; DS = distal spine; G (D) S = genital (double-) somite; in = inner margin; out = outer margin; L = length; PGS = postgenital somites; Pro = prosome; Uro = urosome; W = width." httpUri="http://table.plazi.org/id/B297CA274A18EE7ABF3696829E372662" pageId="0" pageNumber="147" tableUuid="B297CA274A18EE7ABF3696829E372662">3</tableCitation>
), for comparison with Red Sea see under
<normalizedToken id="091B4101B8C42C79BA727A79DF0A812F" originalValue="“Remarks”">&quot;Remarks&quot;</normalizedToken>
. Integumental pores on prosome difficult to discern, not figured.
</paragraph>
<caption id="609066EEBADB46665686B3135FB99054" doi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147" start="Figure 12" startId="F12">
<paragraph id="FF9B1B5FE990DB5746971AE510F27CC4" pageId="0" pageNumber="147">
<emphasis id="2296F0BDD9A8076FA91D595AE4137081" bold="true" pageId="0" pageNumber="147">Figure 12.</emphasis>
<taxonomicName id="9EC065CC5E77D9763EB9F77F3862A84F" authorityName="Boettger-Schnack" authorityYear="2003" class="Copepoda" family="Oncaeidae" genus="Spinoncaea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Spinoncaea humesi" order="Cyclopoida" pageId="0" pageNumber="147" phylum="Arthropoda" rank="species" species="humesi">
<emphasis id="1060AC9E79EC53AF70847CA7D2C298B0" italics="true" pageId="0" pageNumber="147">Spinoncaea humesi</emphasis>
</taxonomicName>
<normalizedToken id="FBCF62FC96A364466FA309209DAFB31F" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
, 2003, female (northeastern equatorial Pacific)
<emphasis id="85A27D2A52829727C9DD98F94155FB7C" bold="true" pageId="0" pageNumber="147">A</emphasis>
habitus, dorsal (caudal seta V missing on both sides)
<emphasis id="3AC74114FDBEA1D32ED475D403B705B3" bold="true" pageId="0" pageNumber="147">B</emphasis>
habitus, lateral
<emphasis id="E2A8F9744298E251968A60BFF6E8EA4A" bold="true" pageId="0" pageNumber="147">C</emphasis>
urosome, dorsal, (caudal seta V missing on both sides)
<emphasis id="4A374290E02C95F59E5F2D03677E180E" bold="true" pageId="0" pageNumber="147">D</emphasis>
urosome, ventral, (caudal seta V missing on both sides)
<emphasis id="C21B1A1483BA00BCF3C8B221E8DDE304" bold="true" pageId="0" pageNumber="147">E</emphasis>
urosome, lateral. Scale bars in
<normalizedToken id="CE879957F82410925C30E5347D8BAB6C" originalValue="μm">μm</normalizedToken>
.
</paragraph>
</caption>
<paragraph id="7E4201BAA210B31E5FC1770E24FDC4CB" pageId="0" pageNumber="147">
P5-bearing somite with three paired midventral spinous processes (Fig.
<figureCitation id="F49E2B47499BBA8140792A71300F3851" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12D</figureCitation>
), no variation in number found (but see under
<normalizedToken id="418B388A582A4ACEB6C6DA53E96030A4" originalValue="“Male”">&quot;Male&quot;</normalizedToken>
).
</paragraph>
<paragraph id="51F1AA69D6AD5B87F249D40110B858A7" pageId="0" pageNumber="147">
Genital double-somite (Fig.
<figureCitation id="718BE25D53CFF09022F73895D1D8DA06" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12C, D, E</figureCitation>
) 2
<normalizedToken id="8DB04908A37C24686601A8EFFC0A2D0E" originalValue="×">x</normalizedToken>
as long as maximum width in specimen figured (measured in dorsal aspect) and ~ 1.5
<normalizedToken id="B869EF89429EE4342C7867844C4C0D0F" originalValue="×">x</normalizedToken>
as long as postgenital somites combined; variation in length to width ratio given in Table
<tableCitation id="A34C8672F82BAA238CB4DF915F120B38" captionStart="Table 3" captionStartId="T3" captionText="Table 3. Variation in morphometric traits for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations in the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait; n = number of specimens examined) Abbreviations: A 2 = antenna; AS = anal somite; CR = caudal ramus, for numbering of setae see Fig. 2 C; DES = distal endopod segment; DS = distal spine; G (D) S = genital (double-) somite; in = inner margin; out = outer margin; L = length; PGS = postgenital somites; Pro = prosome; Uro = urosome; W = width." httpUri="http://table.plazi.org/id/B297CA274A18EE7ABF3696829E372662" pageId="0" pageNumber="147" tableUuid="B297CA274A18EE7ABF3696829E372662">3</tableCitation>
, respective ratios from Red Sea specimens fit into this range; ornamentation of dorsal and ventral surfaces (Fig.
<figureCitation id="F16B8DC6A6643A2B207A85B4A17A4D0C" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12D, E</figureCitation>
) as for Red Sea specimens, including weakly developed undulate hyaline frill on posterior margin of genital double-somite and postgenital somites, as well as absence of pores on lateral surface of postgenital somites (Fig.
<figureCitation id="85BC6BCB866EE62D39A18E78CE26D488" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12E</figureCitation>
).
</paragraph>
<paragraph id="4485B884D53817D90ED932869C969BF1" pageId="0" pageNumber="147">
Anal somite (Fig.
<figureCitation id="B112347DCD3446B736E4BEED27161DE8" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12C</figureCitation>
) with length to width ratio 1.2-1.3 (Table
<tableCitation id="B699BDE81B1C00C2C1B4362A8BA1D532" captionStart="Table 3" captionStartId="T3" captionText="Table 3. Variation in morphometric traits for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations in the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait; n = number of specimens examined) Abbreviations: A 2 = antenna; AS = anal somite; CR = caudal ramus, for numbering of setae see Fig. 2 C; DES = distal endopod segment; DS = distal spine; G (D) S = genital (double-) somite; in = inner margin; out = outer margin; L = length; PGS = postgenital somites; Pro = prosome; Uro = urosome; W = width." httpUri="http://table.plazi.org/id/B297CA274A18EE7ABF3696829E372662" pageId="0" pageNumber="147" tableUuid="B297CA274A18EE7ABF3696829E372662">3</tableCitation>
), similar to Red Sea, but slightly different from other areas reported in
<normalizedToken id="F70E1537EAC11AC28D890232BC596B0C" originalValue="Böttger-Schnack's">Boettger-Schnack's</normalizedToken>
account (1.0-1.2:1,
<bibRefCitation id="FE2C5D6FAA76EB2718C80921FFE582EB" DOI="https://doi.org/10.1046/j.1096-3642.2003.00056.x" author="Boettger-Schnack, R" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="147" pagination="187 - 226" refId="B5" refString="Boettger-Schnack, R, 2003. Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi -group), with notes on zoogeographical distribution. Zoological Journal of the Linnean Society 137 (2): 187 - 226, DOI: https://doi.org/10.1046/j.1096-3642.2003.00056.x" title="Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi - group), with notes on zoogeographical distribution." url="https://doi.org/10.1046/j.1096-3642.2003.00056.x" volume="137" year="2003">
<normalizedToken id="F2E550113829367C927944AAE2941634" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
2003
</bibRefCitation>
: table 7). One pair of secretory pores present dorsally near posterior margin (Fig.
<figureCitation id="10B70AA0B5B5CF8E94006B99EF63EC35" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12C</figureCitation>
), second pair reported for Red Sea specimens not discerned. Other ornamentation as figured (Fig.
<figureCitation id="A24C2900EE092DA27227FCE1E6DB17A4" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12C-E</figureCitation>
).
</paragraph>
<paragraph id="0A4708273F2253ABAEFB1AA9847411FC" pageId="0" pageNumber="147">
Caudal ramus (Fig.
<figureCitation id="1A02E27E2B8CB47C0273393D605DE908" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12A, C</figureCitation>
) 2.3-2.5
<normalizedToken id="ADBDFD1B4C86B3C629D59FBE1D22E929" originalValue="×">x</normalizedToken>
longer than wide measured along inner margin and ~ 2.8-3.1
<normalizedToken id="3CFC573FAC2AA07D753108F9265BF462" originalValue="×">x</normalizedToken>
longer than wide measured along outer margin (Table
<tableCitation id="3A25EF77FE670C0F2F7F09A3E5C0DA89" captionStart="Table 3" captionStartId="T3" captionText="Table 3. Variation in morphometric traits for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations in the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait; n = number of specimens examined) Abbreviations: A 2 = antenna; AS = anal somite; CR = caudal ramus, for numbering of setae see Fig. 2 C; DES = distal endopod segment; DS = distal spine; G (D) S = genital (double-) somite; in = inner margin; out = outer margin; L = length; PGS = postgenital somites; Pro = prosome; Uro = urosome; W = width." httpUri="http://table.plazi.org/id/B297CA274A18EE7ABF3696829E372662" pageId="0" pageNumber="147" tableUuid="B297CA274A18EE7ABF3696829E372662">3</tableCitation>
), range of variation similar to ratios reported for Red Sea and other regions (
<bibRefCitation id="F4C71F611791E786AA980B4F605BAC96" DOI="https://doi.org/10.1046/j.1096-3642.2003.00056.x" author="Boettger-Schnack, R" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="147" pagination="187 - 226" refId="B5" refString="Boettger-Schnack, R, 2003. Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi -group), with notes on zoogeographical distribution. Zoological Journal of the Linnean Society 137 (2): 187 - 226, DOI: https://doi.org/10.1046/j.1096-3642.2003.00056.x" title="Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi - group), with notes on zoogeographical distribution." url="https://doi.org/10.1046/j.1096-3642.2003.00056.x" volume="137" year="2003">
<normalizedToken id="8F8616F25D1BED84FBADE8030C3A37BF" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
2003
</bibRefCitation>
: table 7). Length ratios among setae II, III, and IV with ranges in Pacific specimens given in Table
<tableCitation id="D8EF001E679A506B8ABC6472170FC3F3" captionStart="Table 3" captionStartId="T3" captionText="Table 3. Variation in morphometric traits for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations in the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait; n = number of specimens examined) Abbreviations: A 2 = antenna; AS = anal somite; CR = caudal ramus, for numbering of setae see Fig. 2 C; DES = distal endopod segment; DS = distal spine; G (D) S = genital (double-) somite; in = inner margin; out = outer margin; L = length; PGS = postgenital somites; Pro = prosome; Uro = urosome; W = width." httpUri="http://table.plazi.org/id/B297CA274A18EE7ABF3696829E372662" pageId="0" pageNumber="147" tableUuid="B297CA274A18EE7ABF3696829E372662">3</tableCitation>
, Red Sea data fit into these ranges; seta V missing on both sides of specimen figured (measurements taken from undissected specimen as follows: seta V ~ 2.7
<normalizedToken id="F8E7CFF3DB59F44A61D402C8C13E85AB" originalValue="×">x</normalizedToken>
longer than seta IV, 1.5
<normalizedToken id="4A87D3CCCDF0A971F9CEBEA2197E31C1" originalValue="×">x</normalizedToken>
longer than seta VII).
</paragraph>
<paragraph id="F2331B6FC90CAE65A9CA810E2835D420" pageId="0" pageNumber="147">
Antennule (Fig.
<figureCitation id="E56ED89C44DA6DCFD352065F0090F437" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A antennule (segments 4 - 6 drawn from another specimen) B antenna C mandible D maxillule E maxilla, arrows indicating spinules F maxilliped, anterior G labrum, posterior, showing some ornamentation on anterior side. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure13" httpUri="https://binary.pensoft.net/fig/555770" pageId="0" pageNumber="147">13A</figureCitation>
) with armature formula as for
<taxonomicName id="7C28ED1E41017BCCBFD6F36A246A42B4" lsidName="S. ivlevi" pageId="0" pageNumber="147" rank="species" species="ivlevi">
<emphasis id="21E08C9E780E9CCBE3361D39B2297AD7" italics="true" pageId="0" pageNumber="147">S. ivlevi</emphasis>
</taxonomicName>
. Ornamentation along inner non-setiferous margin of segments 2 and 3 absent, as specified for Red Sea specimens.
</paragraph>
<caption id="8A658BC999BD2E0E4B835757850A41C1" doi="10.3897/zookeys.1043.64438.figure13" httpUri="https://binary.pensoft.net/fig/555770" pageId="0" pageNumber="147" start="Figure 13" startId="F13">
<paragraph id="800D6FAB41710E89ED8962B77CE067F6" pageId="0" pageNumber="147">
<emphasis id="3581B56EB37E4B417C36BFBFC68C4DA4" bold="true" pageId="0" pageNumber="147">Figure 13.</emphasis>
<taxonomicName id="0D5856C6CCAD4C711A42C9F8A99A8B83" authorityName="Boettger-Schnack" authorityYear="2003" class="Copepoda" family="Oncaeidae" genus="Spinoncaea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Spinoncaea humesi" order="Cyclopoida" pageId="0" pageNumber="147" phylum="Arthropoda" rank="species" species="humesi">
<emphasis id="C3A683A91CDAAE31AD9843C4CA35F55F" italics="true" pageId="0" pageNumber="147">Spinoncaea humesi</emphasis>
</taxonomicName>
<normalizedToken id="D9F6D8E088A2310538EED9F7EACDDBDD" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
, 2003, female (northeastern equatorial Pacific)
<emphasis id="C52C57967F53561265EC68F8F5841CE5" bold="true" pageId="0" pageNumber="147">A</emphasis>
antennule (segments 4-6 drawn from another specimen)
<emphasis id="A2E719D8CE03A7B9E2DFC534515D2698" bold="true" pageId="0" pageNumber="147">B</emphasis>
antenna
<emphasis id="0F9BF7E9C2D73D63A17DD6DC092FB1E0" bold="true" pageId="0" pageNumber="147">C</emphasis>
mandible
<emphasis id="EAF9847B264B90062A7CC087B2078A94" bold="true" pageId="0" pageNumber="147">D</emphasis>
maxillule
<emphasis id="C941CB10FA8AA2064213EC69A5A2CD6C" bold="true" pageId="0" pageNumber="147">E</emphasis>
maxilla, arrows indicating spinules
<emphasis id="117AC9CA1A5B63030C4A95AD45912866" bold="true" pageId="0" pageNumber="147">F</emphasis>
maxilliped, anterior
<emphasis id="AFA4FDA8A6B94FA9B8E69266F0CCB674" bold="true" pageId="0" pageNumber="147">G</emphasis>
labrum, posterior, showing some ornamentation on anterior side. Scale bars in
<normalizedToken id="F18007274E37EBDDE20EF7093330FFF4" originalValue="μm">μm</normalizedToken>
.
</paragraph>
</caption>
<paragraph id="42B9FAE2E5B2B1BD18D71764A565B328" pageId="0" pageNumber="147">
Antenna 3-segmented, armature and ornamentation as figured (Fig.
<figureCitation id="246AE426354A7FD3193F5C440C515271" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A antennule (segments 4 - 6 drawn from another specimen) B antenna C mandible D maxillule E maxilla, arrows indicating spinules F maxilliped, anterior G labrum, posterior, showing some ornamentation on anterior side. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure13" httpUri="https://binary.pensoft.net/fig/555770" pageId="0" pageNumber="147">13B</figureCitation>
). Endopod segments ~ equal in length (but in Fig.
<figureCitation id="A6EE54E07D929F4AC27D9BA2B96EBFBB" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A antennule (segments 4 - 6 drawn from another specimen) B antenna C mandible D maxillule E maxilla, arrows indicating spinules F maxilliped, anterior G labrum, posterior, showing some ornamentation on anterior side. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure13" httpUri="https://binary.pensoft.net/fig/555770" pageId="0" pageNumber="147">13B</figureCitation>
, the proximal endopod segment looks shorter than the distal one, due to its orientation on the slide); distal endopod segment ~ 4
<normalizedToken id="CE9354F6F7D1A12C7E59EDF79D0EF239" originalValue="×">x</normalizedToken>
longer than wide, variation given in Table
<tableCitation id="6B53FBDE1D20368603DFE83BBE46A6EC" captionStart="Table 3" captionStartId="T3" captionText="Table 3. Variation in morphometric traits for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations in the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait; n = number of specimens examined) Abbreviations: A 2 = antenna; AS = anal somite; CR = caudal ramus, for numbering of setae see Fig. 2 C; DES = distal endopod segment; DS = distal spine; G (D) S = genital (double-) somite; in = inner margin; out = outer margin; L = length; PGS = postgenital somites; Pro = prosome; Uro = urosome; W = width." httpUri="http://table.plazi.org/id/B297CA274A18EE7ABF3696829E372662" pageId="0" pageNumber="147" tableUuid="B297CA274A18EE7ABF3696829E372662">3</tableCitation>
, Red Sea data fit into these ranges; armature and ornamentation as in
<taxonomicName id="9652694ECE394E537ED2BDF9F6E60DBF" lsidName="S. ivlevi" pageId="0" pageNumber="147" rank="species" species="ivlevi">
<emphasis id="C123B4EDA3A1D08846D7B55A4A33B10E" italics="true" pageId="0" pageNumber="147">S. ivlevi</emphasis>
</taxonomicName>
, except for seta II slightly longer than seta I (for numbering of elements see Fig.
<figureCitation id="BAC4BC020873C38A5A8C99130F4AE6D9" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Spinoncaea ivlevi (Shmeleva, 1966), female, robust form (northwestern equatorial Pacific) A antennule (separated between segments 3 and 4) B antenna, distal elements on distal endopod segment numbered using capital letters, lateral elements indicated by Roman numerals C mandible, individual elements indicated by capital letters D maxillule E maxilla, arrow indicating spinules on syncoxa, F maxilliped, posterior, syncoxa missing G labrum, anterior H labrum, posterior. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure3" httpUri="https://binary.pensoft.net/fig/555760" pageId="0" pageNumber="147">3B</figureCitation>
).
</paragraph>
<paragraph id="FB0CA681A3E8B91705C14AF4457723B8" pageId="0" pageNumber="147">
Labrum with ornamentation as figured (Fig.
<figureCitation id="EF91D57407CCAEEEFD4066ECB5D36C8E" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A antennule (segments 4 - 6 drawn from another specimen) B antenna C mandible D maxillule E maxilla, arrows indicating spinules F maxilliped, anterior G labrum, posterior, showing some ornamentation on anterior side. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure13" httpUri="https://binary.pensoft.net/fig/555770" pageId="0" pageNumber="147">13G</figureCitation>
) including difference to
<taxonomicName id="A26DD1A53DA08368CF8C0606A554A36E" lsidName="S. ivlevi" pageId="0" pageNumber="147" rank="species" species="ivlevi">
<emphasis id="46AAD2AACDFB1B34EFE425224C842C17" italics="true" pageId="0" pageNumber="147">S. ivlevi</emphasis>
</taxonomicName>
in size of four marginal teeth along distal (ventral) margin on each lobe being smaller than in
<taxonomicName id="EE32BD50EF9A9CB5EA1495FA0BBD1119" lsidName="S. ivlevi" pageId="0" pageNumber="147" rank="species" species="ivlevi">
<emphasis id="5AA1A42DF01816574A1C922FCFA918E8" italics="true" pageId="0" pageNumber="147">S. ivlevi</emphasis>
</taxonomicName>
. Posterior face with two secretory pores on each lobe, which are difficult to discern. Anterior surface of labrum not observed in detail, but overlapping rows of fine spinules covering median concavity on anterior side visible from Fig.
<figureCitation id="195EDE31E831AC0D550452F2CFCC4E6B" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A antennule (segments 4 - 6 drawn from another specimen) B antenna C mandible D maxillule E maxilla, arrows indicating spinules F maxilliped, anterior G labrum, posterior, showing some ornamentation on anterior side. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure13" httpUri="https://binary.pensoft.net/fig/555770" pageId="0" pageNumber="147">13G</figureCitation>
.
</paragraph>
<paragraph id="A56D8F4DA0971F54E32B8F78FEA3718F" pageId="0" pageNumber="147">
Mandible with armature and ornamentation as figured (Fig.
<figureCitation id="A382EFB0479E066F5CFBC70D465A668A" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A antennule (segments 4 - 6 drawn from another specimen) B antenna C mandible D maxillule E maxilla, arrows indicating spinules F maxilliped, anterior G labrum, posterior, showing some ornamentation on anterior side. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure13" httpUri="https://binary.pensoft.net/fig/555770" pageId="0" pageNumber="147">13C</figureCitation>
), small element D on gnathobase absent, as typical for the species.
</paragraph>
<paragraph id="8CBF5C3399934EF19E74F5FDB0278EFC" pageId="0" pageNumber="147">
Maxillule (Fig.
<figureCitation id="8F3CAE51669597FA4CA7363EAAC55390" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A antennule (segments 4 - 6 drawn from another specimen) B antenna C mandible D maxillule E maxilla, arrows indicating spinules F maxilliped, anterior G labrum, posterior, showing some ornamentation on anterior side. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure13" httpUri="https://binary.pensoft.net/fig/555770" pageId="0" pageNumber="147">13D</figureCitation>
) similar to
<taxonomicName id="D886FD5A5313F4A2CCD834C3E0ABED17" lsidName="S. ivlevi" pageId="0" pageNumber="147" rank="species" species="ivlevi">
<emphasis id="17C25892CC678AE9CDBF014B45C926FC" italics="true" pageId="0" pageNumber="147">S. ivlevi</emphasis>
</taxonomicName>
, except for middle element on outer lobe naked.
</paragraph>
<paragraph id="3D1ED7995D453841B4CD22F8648A0A0C" pageId="0" pageNumber="147">
Maxilla with armature and ornamentation as figured (Fig.
<figureCitation id="28EBC20173884E08C2E1643CEA93474C" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A antennule (segments 4 - 6 drawn from another specimen) B antenna C mandible D maxillule E maxilla, arrows indicating spinules F maxilliped, anterior G labrum, posterior, showing some ornamentation on anterior side. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure13" httpUri="https://binary.pensoft.net/fig/555770" pageId="0" pageNumber="147">13E</figureCitation>
), additional ornamentation on syncoxa in Pacific specimens arrowed in Fig.
<figureCitation id="193DC49B52D3516BB71A045BD01A5D29" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A antennule (segments 4 - 6 drawn from another specimen) B antenna C mandible D maxillule E maxilla, arrows indicating spinules F maxilliped, anterior G labrum, posterior, showing some ornamentation on anterior side. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure13" httpUri="https://binary.pensoft.net/fig/555770" pageId="0" pageNumber="147">13E</figureCitation>
.
</paragraph>
<paragraph id="73C399877A2CF4A0F40DA39C12CC2E1F" pageId="0" pageNumber="147">
Maxilliped with armature and ornamentation as figured (Fig.
<figureCitation id="3EBB9A39F1A9BFBB72817A372ACA8CF4" captionStart="Figure 13" captionStartId="F13" captionText="Figure 13. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A antennule (segments 4 - 6 drawn from another specimen) B antenna C mandible D maxillule E maxilla, arrows indicating spinules F maxilliped, anterior G labrum, posterior, showing some ornamentation on anterior side. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure13" httpUri="https://binary.pensoft.net/fig/555770" pageId="0" pageNumber="147">13F</figureCitation>
), similar to Red Sea specimens, including small ornamentation details, such as proximal element on basis unornamented.
</paragraph>
<paragraph id="9DA66DC7A89DE779CE8A5A20B3CF2331" pageId="0" pageNumber="147">
Swimming legs (Fig.
<figureCitation id="70464174B9218F9B48EA5813D4DCDC34" captionStart="Figure 14" captionStartId="F14" captionText="Figure 14. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A P 1, anterior B P 2, posterior C P 3, anterior D P 4, posterior, basal seta of another specimen figured separately. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure14" httpUri="https://binary.pensoft.net/fig/555771" pageId="0" pageNumber="147">14A-D</figureCitation>
), with armature as in
<taxonomicName id="A9211485731BDCB2C056456EA6E92B7E" lsidName="S. ivlevi" pageId="0" pageNumber="147" rank="species" species="ivlevi">
<emphasis id="3E6370E5145E0EB9CD4EBCE98CDB9F6C" italics="true" pageId="0" pageNumber="147">S. ivlevi</emphasis>
</taxonomicName>
except for spine count on distal exopod segment of P2, showing only two outer spines (Table
<tableCitation id="F896A71F1D02BF1B6B08B6A9D82606B2" captionStart="Table 2" captionStartId="T2" captionText="Table 2. Swimming legs armature formula. Roman numerals indicate spines, Arabic numerals represent setae. Differences in spine count are marked in bold. (a) S. ivlevi and S. tenuis, (b) S. humesi." httpUri="http://table.plazi.org/id/140228EAFF62F015C052DE3991C57686" pageId="0" pageNumber="147" tableUuid="140228EAFF62F015C052DE3991C57686">2</tableCitation>
). Intercoxal sclerites unornamented (missing in specimen figured). Surface of coxae and bases with sparse surface ornamentation as figured, outer basal seta on P4 very long, reaching as far as tip of distal exopod segment (Fig.
<figureCitation id="C7292C9E7E024DEB003CAB2BF8B3A812" captionStart="Figure 14" captionStartId="F14" captionText="Figure 14. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A P 1, anterior B P 2, posterior C P 3, anterior D P 4, posterior, basal seta of another specimen figured separately. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure14" httpUri="https://binary.pensoft.net/fig/555771" pageId="0" pageNumber="147">14D</figureCitation>
), as typical for the species.
</paragraph>
<caption id="1B2CD354A50D5DC6012AD6B333A80604" doi="10.3897/zookeys.1043.64438.figure14" httpUri="https://binary.pensoft.net/fig/555771" pageId="0" pageNumber="147" start="Figure 14" startId="F14">
<paragraph id="C73BB25A0545556E502B9DE077F7238A" pageId="0" pageNumber="147">
<emphasis id="7385BB7E8334BB7E48F92FA0D90344A0" bold="true" pageId="0" pageNumber="147">Figure 14.</emphasis>
<taxonomicName id="F218FEE4C377632C4BD47A56C5BFD94E" authorityName="Boettger-Schnack" authorityYear="2003" class="Copepoda" family="Oncaeidae" genus="Spinoncaea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Spinoncaea humesi" order="Cyclopoida" pageId="0" pageNumber="147" phylum="Arthropoda" rank="species" species="humesi">
<emphasis id="A5FDBB971A7832F63EB52E9E855595BF" italics="true" pageId="0" pageNumber="147">Spinoncaea humesi</emphasis>
</taxonomicName>
<normalizedToken id="7FC64F611DCC1A51905BE11E74D79656" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
, 2003, female (northeastern equatorial Pacific)
<emphasis id="421F8344461F66A4EDFCE9120C4CAF47" bold="true" pageId="0" pageNumber="147">A</emphasis>
P1, anterior
<emphasis id="FACFB33636A781BB0A4532DF79F4A2F5" bold="true" pageId="0" pageNumber="147">B</emphasis>
P2, posterior
<emphasis id="682829CD776A7E6C5448AD46FA69EA2F" bold="true" pageId="0" pageNumber="147">C</emphasis>
P3, anterior
<emphasis id="7625C82DD99E74D4A741EEE3CB74468E" bold="true" pageId="0" pageNumber="147">D</emphasis>
P4, posterior, basal seta of another specimen figured separately. Scale bars in
<normalizedToken id="AA62831C1EFC625AC78D7C6228006FCE" originalValue="μm">μm</normalizedToken>
.
</paragraph>
</caption>
<paragraph id="5D62191DCEEE5665DA2208691D577B27" pageId="0" pageNumber="147">
Exopods with variability of proportional spine lengths in Pacific specimens given in Table
<tableCitation id="B6FA9E894F403076670A3ACA9BE4B283" captionStart="Table 4" captionStartId="T4" captionText="Table 4. Variation in proportional spine lengths on P 2 - P 4 for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations of the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait, n = number of specimens measured) Abbreviations: DS = distal spine; L = length; MS = middle spine; ODS = outer distal spine; OSDS = outer subdistal spine; PS = proximal spine; SP = spine; W = width." httpUri="http://table.plazi.org/id/C31DA3DB9644D3B1EF4CFC460518BFD1" pageId="0" pageNumber="147" tableUuid="C31DA3DB9644D3B1EF4CFC460518BFD1">4</tableCitation>
, respectively values from Red Sea generally fit into these ranges, except proportional spine lengths on P2 larger than in the Red Sea specimens.
</paragraph>
<paragraph id="385381CE05C8FA203F212DA24E7BBD82" pageId="0" pageNumber="147">
Endopods with length ranges of outer subdistal spine and outer distal spine relative to distal spine on P2 and P4 given in Table
<tableCitation id="4E5915319DB3B467B8895FFC9A6F36A9" captionStart="Table 4" captionStartId="T4" captionText="Table 4. Variation in proportional spine lengths on P 2 - P 4 for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations of the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait, n = number of specimens measured) Abbreviations: DS = distal spine; L = length; MS = middle spine; ODS = outer distal spine; OSDS = outer subdistal spine; PS = proximal spine; SP = spine; W = width." httpUri="http://table.plazi.org/id/C31DA3DB9644D3B1EF4CFC460518BFD1" pageId="0" pageNumber="147" tableUuid="C31DA3DB9644D3B1EF4CFC460518BFD1">4</tableCitation>
generally similar to Red Sea specimens, except for outer distal spine relative to distal spine on P2 (0.45-0.51) and P3 (0.42-0.44) smaller than Red Sea (0.56 on P2 and 0.48 on P3, calculated from
<bibRefCitation id="7DF64615FF04D6BDD63612946F6DBCA3" DOI="https://doi.org/10.1046/j.1096-3642.2003.00056.x" author="Boettger-Schnack, R" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="147" pagination="187 - 226" refId="B5" refString="Boettger-Schnack, R, 2003. Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi -group), with notes on zoogeographical distribution. Zoological Journal of the Linnean Society 137 (2): 187 - 226, DOI: https://doi.org/10.1046/j.1096-3642.2003.00056.x" title="Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi - group), with notes on zoogeographical distribution." url="https://doi.org/10.1046/j.1096-3642.2003.00056.x" volume="137" year="2003">
<normalizedToken id="7DDABBF86B64DDEE5CA49D07B1A5A0BE" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
2003
</bibRefCitation>
: fig. 10B, C).
</paragraph>
<paragraph id="A5B6B8CE0C755D6883DAD81E29F5460D" pageId="0" pageNumber="147">
P5 (Fig.
<figureCitation id="FAEDC827FB655260C23C4D4583F907BF" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12C, E</figureCitation>
) with exopod 1.4
<normalizedToken id="E18A3A3E47AF9B76A95FDD28ED210B9C" originalValue="×">x</normalizedToken>
longer than wide, shorter than in Red Sea (1.7:1; cf.
<bibRefCitation id="E2D50BFAAF31548C2AAC375E002E8634" DOI="https://doi.org/10.1046/j.1096-3642.2003.00056.x" author="Boettger-Schnack, R" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="147" pagination="187 - 226" refId="B5" refString="Boettger-Schnack, R, 2003. Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi -group), with notes on zoogeographical distribution. Zoological Journal of the Linnean Society 137 (2): 187 - 226, DOI: https://doi.org/10.1046/j.1096-3642.2003.00056.x" title="Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi - group), with notes on zoogeographical distribution." url="https://doi.org/10.1046/j.1096-3642.2003.00056.x" volume="137" year="2003">
<normalizedToken id="37A2CEA9D6FD8EBA00A322F8A36413AF" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
2003
</bibRefCitation>
: 208, fig. 8H, I), armature and ornamentation as figured.
</paragraph>
<paragraph id="96625B72997C74A4A2606E0E98AB31CE" pageId="0" pageNumber="147">
P6 (Fig.
<figureCitation id="D5DE78C7814DB9F990F981521DDA5D01" captionStart="Figure 12" captionStartId="F12" captionText="Figure 12. Spinoncaea humesi Boettger-Schnack, 2003, female (northeastern equatorial Pacific) A habitus, dorsal (caudal seta V missing on both sides) B habitus, lateral C urosome, dorsal, (caudal seta V missing on both sides) D urosome, ventral, (caudal seta V missing on both sides) E urosome, lateral. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure12" httpUri="https://binary.pensoft.net/fig/555769" pageId="0" pageNumber="147">12C</figureCitation>
) as figured, armature (short spinule) difficult to discern.
</paragraph>
<paragraph id="CF7EB5A93AF8C4F86F6F02AC9EDD72B3" pageId="0" pageNumber="147">
<emphasis id="C281E890CB4350290F29B56D68EC1259" bold="true" pageId="0" pageNumber="147">
Male (Fig.
<figureCitation id="D68DFCA7A83FC3F78B0AAF56A7471E95" captionStart="Figure 15" captionStartId="F15" captionText="Figure 15. Spinoncaea humesi Boettger-Schnack, 2003, male (northwestern equatorial Pacific) A habitus, dorsal (caudal seta V on right side missing) B habitus, lateral C urosome, dorsal (caudal seta V on right side missing) D urosome, ventral (caudal seta V on right side missing) E urosome, lateral F antennule G maxilliped, anterior H maxilliped, middle. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure15" httpUri="https://binary.pensoft.net/fig/555772" pageId="0" pageNumber="147">15</figureCitation>
, Tables
<tableCitation id="15553F26CABAAC956E9AA00671C3DA73" captionStart="Table 3" captionStartId="T3" captionText="Table 3. Variation in morphometric traits for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations in the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait; n = number of specimens examined) Abbreviations: A 2 = antenna; AS = anal somite; CR = caudal ramus, for numbering of setae see Fig. 2 C; DES = distal endopod segment; DS = distal spine; G (D) S = genital (double-) somite; in = inner margin; out = outer margin; L = length; PGS = postgenital somites; Pro = prosome; Uro = urosome; W = width." httpUri="http://table.plazi.org/id/B297CA274A18EE7ABF3696829E372662" pageId="0" pageNumber="147" tableUuid="B297CA274A18EE7ABF3696829E372662">3</tableCitation>
,
<tableCitation id="72C84E230B4EA4B041BD0AF52415E86E" captionStart="Table 4" captionStartId="T4" captionText="Table 4. Variation in proportional spine lengths on P 2 - P 4 for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations of the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait, n = number of specimens measured) Abbreviations: DS = distal spine; L = length; MS = middle spine; ODS = outer distal spine; OSDS = outer subdistal spine; PS = proximal spine; SP = spine; W = width." httpUri="http://table.plazi.org/id/C31DA3DB9644D3B1EF4CFC460518BFD1" pageId="0" pageNumber="147" tableUuid="C31DA3DB9644D3B1EF4CFC460518BFD1">4</tableCitation>
).
</emphasis>
Body length 285-295
<normalizedToken id="E62486B198E0E65DC616614B4BF96756" originalValue="µm">µm</normalizedToken>
(Table
<tableCitation id="56493652D66732DC51823CF52C5B5DE7" captionStart="Table 3" captionStartId="T3" captionText="Table 3. Variation in morphometric traits for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations in the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait; n = number of specimens examined) Abbreviations: A 2 = antenna; AS = anal somite; CR = caudal ramus, for numbering of setae see Fig. 2 C; DES = distal endopod segment; DS = distal spine; G (D) S = genital (double-) somite; in = inner margin; out = outer margin; L = length; PGS = postgenital somites; Pro = prosome; Uro = urosome; W = width." httpUri="http://table.plazi.org/id/B297CA274A18EE7ABF3696829E372662" pageId="0" pageNumber="147" tableUuid="B297CA274A18EE7ABF3696829E372662">3</tableCitation>
). Sexual dimorphism in antennule, maxilliped, P6, and in genital segmentation, slight modification in setal length of P5. Pore pattern on prosome not discerned.
</paragraph>
<paragraph id="25B9DE359AD42AE140FB2B681B8224CA" pageId="0" pageNumber="147">
P5-bearing somite with paired midventral spinous processes variable in number (two or three processes) (Fig.
<figureCitation id="E94556A276AB5F56A74238C0A6909465" captionStart="Figure 15" captionStartId="F15" captionText="Figure 15. Spinoncaea humesi Boettger-Schnack, 2003, male (northwestern equatorial Pacific) A habitus, dorsal (caudal seta V on right side missing) B habitus, lateral C urosome, dorsal (caudal seta V on right side missing) D urosome, ventral (caudal seta V on right side missing) E urosome, lateral F antennule G maxilliped, anterior H maxilliped, middle. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure15" httpUri="https://binary.pensoft.net/fig/555772" pageId="0" pageNumber="147">15D</figureCitation>
).
</paragraph>
<caption id="6DE40A962BFF26260E165D6204570725" doi="10.3897/zookeys.1043.64438.figure15" httpUri="https://binary.pensoft.net/fig/555772" pageId="0" pageNumber="147" start="Figure 15" startId="F15">
<paragraph id="3D4F09B88E9CD32EC1FD0EDC73F481C5" pageId="0" pageNumber="147">
<emphasis id="C58AF9793633AA416A814F3AC29CE92C" bold="true" pageId="0" pageNumber="147">Figure 15.</emphasis>
<taxonomicName id="8AD8B33B4AD377E62478CCAC45A081E3" authorityName="Boettger-Schnack" authorityYear="2003" class="Copepoda" family="Oncaeidae" genus="Spinoncaea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Spinoncaea humesi" order="Cyclopoida" pageId="0" pageNumber="147" phylum="Arthropoda" rank="species" species="humesi">
<emphasis id="CF600914DC1B6BB24329F7A34B04D010" italics="true" pageId="0" pageNumber="147">Spinoncaea humesi</emphasis>
</taxonomicName>
<normalizedToken id="3548345CB18F4CDEC68C2C22E6DED65B" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
, 2003, male (northwestern equatorial Pacific)
<emphasis id="48224991E424A31FF49C222B03F4AB33" bold="true" pageId="0" pageNumber="147">A</emphasis>
habitus, dorsal (caudal seta V on right side missing)
<emphasis id="0AEA7B8A42ED7402DF8EC744C38CDECF" bold="true" pageId="0" pageNumber="147">B</emphasis>
habitus, lateral
<emphasis id="F4DB80582AF8D3FF9433C627D35472BF" bold="true" pageId="0" pageNumber="147">C</emphasis>
urosome, dorsal (caudal seta V on right side missing)
<emphasis id="B29985317C5098F2F2D129A0A804C756" bold="true" pageId="0" pageNumber="147">D</emphasis>
urosome, ventral (caudal seta V on right side missing)
<emphasis id="2A167380C41274C31D5EEDE6957BF255" bold="true" pageId="0" pageNumber="147">E</emphasis>
urosome, lateral
<emphasis id="7A55C1E5214413493B57FA0AC8E1D6F7" bold="true" pageId="0" pageNumber="147">F</emphasis>
antennule
<emphasis id="765BB3B057B58382F6DB6E89E31A94FF" bold="true" pageId="0" pageNumber="147">G</emphasis>
maxilliped, anterior
<emphasis id="4013797C3895F150A1F20B3E02443C9B" bold="true" pageId="0" pageNumber="147">H</emphasis>
maxilliped, middle. Scale bars in
<normalizedToken id="F8C6A5E742A6B200DCF4A13508AE75E9" originalValue="μm">μm</normalizedToken>
.
</paragraph>
</caption>
<paragraph id="BE159EBB2876701A2D0DBC2F6D2DE416" pageId="0" pageNumber="147">
Caudal rami (Fig.
<figureCitation id="45AB1148F2E17A0E5A4211E6BFF613B9" captionStart="Figure 15" captionStartId="F15" captionText="Figure 15. Spinoncaea humesi Boettger-Schnack, 2003, male (northwestern equatorial Pacific) A habitus, dorsal (caudal seta V on right side missing) B habitus, lateral C urosome, dorsal (caudal seta V on right side missing) D urosome, ventral (caudal seta V on right side missing) E urosome, lateral F antennule G maxilliped, anterior H maxilliped, middle. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure15" httpUri="https://binary.pensoft.net/fig/555772" pageId="0" pageNumber="147">15A, C, D</figureCitation>
) with length to width ratio 2.1-2.5 measured along inner margin and 2.6-3.2 measured along outer margin (Table
<tableCitation id="F87AD96E4BC5D2DAE2C5875B6D57FB4D" captionStart="Table 3" captionStartId="T3" captionText="Table 3. Variation in morphometric traits for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations in the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait; n = number of specimens examined) Abbreviations: A 2 = antenna; AS = anal somite; CR = caudal ramus, for numbering of setae see Fig. 2 C; DES = distal endopod segment; DS = distal spine; G (D) S = genital (double-) somite; in = inner margin; out = outer margin; L = length; PGS = postgenital somites; Pro = prosome; Uro = urosome; W = width." httpUri="http://table.plazi.org/id/B297CA274A18EE7ABF3696829E372662" pageId="0" pageNumber="147" tableUuid="B297CA274A18EE7ABF3696829E372662">3</tableCitation>
), [single value from Korea Strait larger than those from western equatorial Pacific,] respective values from Red Sea and other areas (
<bibRefCitation id="03AC49E15758B00F9697FCA5A42A0C1E" DOI="https://doi.org/10.1046/j.1096-3642.2003.00056.x" author="Boettger-Schnack, R" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="147" pagination="187 - 226" refId="B5" refString="Boettger-Schnack, R, 2003. Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi -group), with notes on zoogeographical distribution. Zoological Journal of the Linnean Society 137 (2): 187 - 226, DOI: https://doi.org/10.1046/j.1096-3642.2003.00056.x" title="Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi - group), with notes on zoogeographical distribution." url="https://doi.org/10.1046/j.1096-3642.2003.00056.x" volume="137" year="2003">
<normalizedToken id="E7BAD2DED30A2CDE01A269AF2ED03AE3" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
2003
</bibRefCitation>
: table 7) fit into this range. Ornamentation details as figured, similar to Red Sea specimens, including absence of surface ornamentation on genital somite (Fig.
<figureCitation id="248908A2513564A1D880BAE72D466178" captionStart="Figure 15" captionStartId="F15" captionText="Figure 15. Spinoncaea humesi Boettger-Schnack, 2003, male (northwestern equatorial Pacific) A habitus, dorsal (caudal seta V on right side missing) B habitus, lateral C urosome, dorsal (caudal seta V on right side missing) D urosome, ventral (caudal seta V on right side missing) E urosome, lateral F antennule G maxilliped, anterior H maxilliped, middle. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure15" httpUri="https://binary.pensoft.net/fig/555772" pageId="0" pageNumber="147">15C, D</figureCitation>
).
</paragraph>
<paragraph id="94CDD2CBF3D050183ABCAB3DA1C1D8EF" pageId="0" pageNumber="147">
Antennule (Fig.
<figureCitation id="C73446B2918D7D736AFB27966E1FDB04" captionStart="Figure 15" captionStartId="F15" captionText="Figure 15. Spinoncaea humesi Boettger-Schnack, 2003, male (northwestern equatorial Pacific) A habitus, dorsal (caudal seta V on right side missing) B habitus, lateral C urosome, dorsal (caudal seta V on right side missing) D urosome, ventral (caudal seta V on right side missing) E urosome, lateral F antennule G maxilliped, anterior H maxilliped, middle. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure15" httpUri="https://binary.pensoft.net/fig/555772" pageId="0" pageNumber="147">15F</figureCitation>
) with armature as for
<taxonomicName id="83AE123A9E9B9E80AA2E6A2FB8E10B23" lsidName="S. ivlevi" pageId="0" pageNumber="147" rank="species" species="ivlevi">
<emphasis id="2B0950F2E91230D80E9AF1C473169BDA" italics="true" pageId="0" pageNumber="147">S. ivlevi</emphasis>
</taxonomicName>
. Segments 2 and 3 without ornamentation.
</paragraph>
<paragraph id="6D3BFE42179CDD85D11E2C63380F03F3" pageId="0" pageNumber="147">
Maxilliped (Fig.
<figureCitation id="7ED553430F6EC0356B8B87224122CBB8" captionStart="Figure 15" captionStartId="F15" captionText="Figure 15. Spinoncaea humesi Boettger-Schnack, 2003, male (northwestern equatorial Pacific) A habitus, dorsal (caudal seta V on right side missing) B habitus, lateral C urosome, dorsal (caudal seta V on right side missing) D urosome, ventral (caudal seta V on right side missing) E urosome, lateral F antennule G maxilliped, anterior H maxilliped, middle. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure15" httpUri="https://binary.pensoft.net/fig/555772" pageId="0" pageNumber="147">15G, H</figureCitation>
) 3-segmented, syncoxa missing in specimen figured. Basis and endopod (claw) with armature and ornamentation similar to Red Sea specimen, including ornamentation detail on claw, with pinnules only along distal half of concave margin.
</paragraph>
<paragraph id="2A63C8169FC726CE5EC51841B61188C3" pageId="0" pageNumber="147">
Swimming legs 1-4 with the value ranges in spine lengths on rami given in Table
<tableCitation id="77C746B7A1092FAE063CA65E7DFE58D4" captionStart="Table 4" captionStartId="T4" captionText="Table 4. Variation in proportional spine lengths on P 2 - P 4 for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations of the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait, n = number of specimens measured) Abbreviations: DS = distal spine; L = length; MS = middle spine; ODS = outer distal spine; OSDS = outer subdistal spine; PS = proximal spine; SP = spine; W = width." httpUri="http://table.plazi.org/id/C31DA3DB9644D3B1EF4CFC460518BFD1" pageId="0" pageNumber="147" tableUuid="C31DA3DB9644D3B1EF4CFC460518BFD1">4</tableCitation>
not significantly different from female, except for the values of the endopodal spines on P4 from Korea Strait smaller than those of females.
</paragraph>
<paragraph id="CCBF3D3ACCFEE18ECEBAF693A1B94EC2" pageId="0" pageNumber="147">
P5 (Fig.
<figureCitation id="76A742573002B93DE76CDB91D3704F14" captionStart="Figure 15" captionStartId="F15" captionText="Figure 15. Spinoncaea humesi Boettger-Schnack, 2003, male (northwestern equatorial Pacific) A habitus, dorsal (caudal seta V on right side missing) B habitus, lateral C urosome, dorsal (caudal seta V on right side missing) D urosome, ventral (caudal seta V on right side missing) E urosome, lateral F antennule G maxilliped, anterior H maxilliped, middle. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure15" httpUri="https://binary.pensoft.net/fig/555772" pageId="0" pageNumber="147">15B, E</figureCitation>
) with exopodal seta and outer basal seta shorter than in female, outer basal seta also much shorter than in Red Sea specimens (
<bibRefCitation id="8E964FA8CAD2608497C845F26C996155" DOI="https://doi.org/10.1046/j.1096-3642.2003.00056.x" author="Boettger-Schnack, R" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="147" pagination="187 - 226" refId="B5" refString="Boettger-Schnack, R, 2003. Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi -group), with notes on zoogeographical distribution. Zoological Journal of the Linnean Society 137 (2): 187 - 226, DOI: https://doi.org/10.1046/j.1096-3642.2003.00056.x" title="Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi - group), with notes on zoogeographical distribution." url="https://doi.org/10.1046/j.1096-3642.2003.00056.x" volume="137" year="2003">
<normalizedToken id="7D3C9D7F44B5A1EEFC1647A1B592C2B0" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
2003
</bibRefCitation>
: fig. 11D-F).
</paragraph>
<paragraph id="5B437BEF09643133D3CC4BB839AD1DBA" pageId="0" pageNumber="147">
P6 (Fig.
<figureCitation id="828450F82B40DA707A962231274685DE" captionStart="Figure 15" captionStartId="F15" captionText="Figure 15. Spinoncaea humesi Boettger-Schnack, 2003, male (northwestern equatorial Pacific) A habitus, dorsal (caudal seta V on right side missing) B habitus, lateral C urosome, dorsal (caudal seta V on right side missing) D urosome, ventral (caudal seta V on right side missing) E urosome, lateral F antennule G maxilliped, anterior H maxilliped, middle. Scale bars in μm." figureDoi="10.3897/zookeys.1043.64438.figure15" httpUri="https://binary.pensoft.net/fig/555772" pageId="0" pageNumber="147">15D</figureCitation>
) with ornamentation as figured.
</paragraph>
</subSubSection>
<subSubSection id="1265F1FFFA4459BE856B72B9E8A3E69C" pageId="0" pageNumber="147" type="remarks">
<paragraph id="A81248A434DA7C644F89481EFBC35857" pageId="0" pageNumber="147">Remarks.</paragraph>
<paragraph id="C11F57CFE0ED491809730F8D037F1239" pageId="0" pageNumber="147">
The morphology of both sexes of
<taxonomicName id="922D62CF26D403313E45B30175385A89" lsidName="S. humesi" pageId="0" pageNumber="147" rank="species" species="humesi">
<emphasis id="91ECA524553C05195C91CD594C650C26" italics="true" pageId="0" pageNumber="147">S. humesi</emphasis>
</taxonomicName>
from the Pacific agrees in most parts with the original description of the species by
<bibRefCitation id="85CD13CE087468545C5FEBE5C638C4CB" DOI="https://doi.org/10.1046/j.1096-3642.2003.00056.x" author="Boettger-Schnack, R" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="147" pagination="187 - 226" refId="B5" refString="Boettger-Schnack, R, 2003. Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi -group), with notes on zoogeographical distribution. Zoological Journal of the Linnean Society 137 (2): 187 - 226, DOI: https://doi.org/10.1046/j.1096-3642.2003.00056.x" title="Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi - group), with notes on zoogeographical distribution." url="https://doi.org/10.1046/j.1096-3642.2003.00056.x" volume="137" year="2003">
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(2003)
</bibRefCitation>
. As stated above, the Pacific specimens differ only in a few characters, such as in (1) a somewhat larger body size in the female and (2) the length ratio of the prosome to the urosome in the female, which appears to be slightly larger in the Pacific specimens (1.7:1 and 1.3-1.4:1, excluding and including caudal rami, respectively) as compared to the Red Sea specimens (1.5:1 excluding caudal rami and 1.2:1 including caudal rami, calculated from
<bibRefCitation id="6A35EA816F12F60D693FDCB3FA7F2830" DOI="https://doi.org/10.1046/j.1096-3642.2003.00056.x" author="Boettger-Schnack, R" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="147" pagination="187 - 226" refId="B5" refString="Boettger-Schnack, R, 2003. Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi -group), with notes on zoogeographical distribution. Zoological Journal of the Linnean Society 137 (2): 187 - 226, DOI: https://doi.org/10.1046/j.1096-3642.2003.00056.x" title="Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi - group), with notes on zoogeographical distribution." url="https://doi.org/10.1046/j.1096-3642.2003.00056.x" volume="137" year="2003">
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(2003
</bibRefCitation>
: fig. 8A). Note, that in the text of
<bibRefCitation id="F7EA3B4DEF582F8B455B002AD72ECBC1" DOI="https://doi.org/10.1046/j.1096-3642.2003.00056.x" author="Boettger-Schnack, R" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="147" pagination="187 - 226" refId="B5" refString="Boettger-Schnack, R, 2003. Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi -group), with notes on zoogeographical distribution. Zoological Journal of the Linnean Society 137 (2): 187 - 226, DOI: https://doi.org/10.1046/j.1096-3642.2003.00056.x" title="Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi - group), with notes on zoogeographical distribution." url="https://doi.org/10.1046/j.1096-3642.2003.00056.x" volume="137" year="2003">
<normalizedToken id="F7223A7814F36034724B32FB3C28A568" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
(2003
</bibRefCitation>
: 208) the proportions of the prosome to the urosome are given as 2.0:1 and 1.7:1, respectively, but these were calculated by a different method taking into account the telescoping of somites, while the telescoping of somites was not considered in the present study. Also, some additional ornamentations were found in the Pacific specimens, such as on the syncoxa of the maxilla of both sexes, the additional ornamentation on the inner portion of the basis of P2-P4 in our Pacific specimens or the number and size of spatulated spinules between proximal seta and articulation with endopod on the maxilliped in female, which are smaller and more numerous than in the specimen from the Red Sea.
</paragraph>
<paragraph id="0DE16BED34663678BAB64A86AE17FBD4" pageId="0" pageNumber="147">
The male of
<taxonomicName id="A718300D4032BC70E2886DB218D2AD4C" lsidName="S. humesi" pageId="0" pageNumber="147" rank="species" species="humesi">
<emphasis id="D672204887DF7C2D45AC15E20144875A" italics="true" pageId="0" pageNumber="147">S. humesi</emphasis>
</taxonomicName>
from the Korea Strait agreed in almost all morphological characters with the specimens from the northwestern equatorial Pacific. But it exhibited individual variabilities in the length to width ratio of caudal ramus, the relative length ratio of caudal setae, and the length to width ratio of the genital somite (cf. Tables
<tableCitation id="78A0A6FC57BCCE62053F1B0F886260C5" captionStart="Table 3" captionStartId="T3" captionText="Table 3. Variation in morphometric traits for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations in the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait; n = number of specimens examined) Abbreviations: A 2 = antenna; AS = anal somite; CR = caudal ramus, for numbering of setae see Fig. 2 C; DES = distal endopod segment; DS = distal spine; G (D) S = genital (double-) somite; in = inner margin; out = outer margin; L = length; PGS = postgenital somites; Pro = prosome; Uro = urosome; W = width." httpUri="http://table.plazi.org/id/B297CA274A18EE7ABF3696829E372662" pageId="0" pageNumber="147" tableUuid="B297CA274A18EE7ABF3696829E372662">3</tableCitation>
,
<tableCitation id="9B0D3CC75F4E31C70A99EA3B22C5C048" captionStart="Table 4" captionStartId="T4" captionText="Table 4. Variation in proportional spine lengths on P 2 - P 4 for three species of Spinoncaea (both sexes, including form variants of female S. ivlevi) from three locations of the Pacific Ocean (WP = western equatorial Pacific; EP = eastern equatorial Pacific; KS = Korea Strait, n = number of specimens measured) Abbreviations: DS = distal spine; L = length; MS = middle spine; ODS = outer distal spine; OSDS = outer subdistal spine; PS = proximal spine; SP = spine; W = width." httpUri="http://table.plazi.org/id/C31DA3DB9644D3B1EF4CFC460518BFD1" pageId="0" pageNumber="147" tableUuid="C31DA3DB9644D3B1EF4CFC460518BFD1">4</tableCitation>
). An additional variation in the male from the Korea Strait was found in the number of midventral spinous processes on the P5-bearing somite, with three paired processes (not figured), as in female, while in the male of the northwestern Pacific only two paired processes were found, as in the male from the Red Sea (
<bibRefCitation id="21528226727365F16D06F349B94F5A82" DOI="https://doi.org/10.1046/j.1096-3642.2003.00056.x" author="Boettger-Schnack, R" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="147" pagination="187 - 226" refId="B5" refString="Boettger-Schnack, R, 2003. Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi -group), with notes on zoogeographical distribution. Zoological Journal of the Linnean Society 137 (2): 187 - 226, DOI: https://doi.org/10.1046/j.1096-3642.2003.00056.x" title="Taxonomy of Oncaeidae (Copepoda, Poecilostomatoida) from the Red Sea. V. Three species of Spinoncaea gen. nov. (ivlevi - group), with notes on zoogeographical distribution." url="https://doi.org/10.1046/j.1096-3642.2003.00056.x" volume="137" year="2003">
<normalizedToken id="7C0B06A848B817927A029FF246AAF681" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
2003
</bibRefCitation>
: fig. 11E). The number of midventral spinous processes on the P5-bearing somite seems to be a common individual variation seen within both sexes among
<taxonomicName id="159682494A6823C81F1DDB55CCB4216E" authorityName="Bottger-Schnack" authorityYear="2003" class="Copepoda" family="Oncaeidae" genus="Spinoncaea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Spinoncaea" order="Cyclopoida" pageId="0" pageNumber="147" phylum="Arthropoda" rank="genus">
<emphasis id="6295A6244949D7BC119CD89F1226C45E" italics="true" pageId="0" pageNumber="147">Spinoncaea</emphasis>
</taxonomicName>
species.
</paragraph>
<paragraph id="6A5133BF0121023D15026CACDF09312D" pageId="0" pageNumber="147">
<taxonomicName id="6C0FA45F5E2A96B7DDA9E440CE94B833" authorityName="Boettger-Schnack" authorityYear="2003" class="Copepoda" family="Oncaeidae" genus="Spinoncaea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Spinoncaea humesi" order="Cyclopoida" pageId="0" pageNumber="147" phylum="Arthropoda" rank="species" species="humesi">
<emphasis id="89FE030BF9BD179285693585F48CADEF" italics="true" pageId="0" pageNumber="147">Spinoncaea humesi</emphasis>
</taxonomicName>
can easily be distinguished from the other two species of
<taxonomicName id="5A452613EC0B3273B9C5537A2789DA74" authorityName="Bottger-Schnack" authorityYear="2003" class="Copepoda" family="Oncaeidae" genus="Spinoncaea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Spinoncaea" order="Cyclopoida" pageId="0" pageNumber="147" phylum="Arthropoda" rank="genus">
<emphasis id="05DE7DE91A547530A380EC660F3BDDE6" italics="true" pageId="0" pageNumber="147">Spinoncaea</emphasis>
</taxonomicName>
by the number of spines on P2exp-3, showing two outer spines in
<taxonomicName id="897ADD25EA4966AB6E73B5947D2BAD0E" lsidName="S. humesi" pageId="0" pageNumber="147" rank="species" species="humesi">
<emphasis id="57BB6D5BA2C5AFC75E3437FE696BA822" italics="true" pageId="0" pageNumber="147">S. humesi</emphasis>
</taxonomicName>
, but three spines in
<taxonomicName id="68BF2253B16CF4C8CFBDC0DD764DC712" lsidName="S. ivlevi" pageId="0" pageNumber="147" rank="species" species="ivlevi">
<emphasis id="329BA0467F20E596E4FDD58F0A5570CC" italics="true" pageId="0" pageNumber="147">S. ivlevi</emphasis>
</taxonomicName>
and
<taxonomicName id="47073ECF01B8D221309BD9C3D8414A43" lsidName="S. tenuis" pageId="0" pageNumber="147" rank="species" species="tenuis">
<emphasis id="1AB357C04ED73BC06E38BA788C4A07F4" italics="true" pageId="0" pageNumber="147">S. tenuis</emphasis>
</taxonomicName>
. Also, the outer basal seta of P5 is extremely long, extending beyond the posterior margin of the genital double-somite in the female, and the shape of genital double-somite is different, being barrel-shaped in
<taxonomicName id="4ED91D5929DF4F572BF330BAF0039462" lsidName="S. humesi" pageId="0" pageNumber="147" rank="species" species="humesi">
<emphasis id="DE383912DDB514595B84F77DAAA713C7" italics="true" pageId="0" pageNumber="147">S. humesi</emphasis>
</taxonomicName>
. Other additional characters for species segregation are not further mentioned in the present study because they are described in detail in the remarks section of
<taxonomicName id="72AC80AA58E4AC33D936495C04A13C6D" lsidName="S. humesi" pageId="0" pageNumber="147" rank="species" species="humesi">
<emphasis id="EB4512E21752F09EBAFE86851F19B604" italics="true" pageId="0" pageNumber="147">S. humesi</emphasis>
</taxonomicName>
by
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<normalizedToken id="395A0F21F980DD8C974B70F28E85CB24" originalValue="Böttger-Schnack">Boettger-Schnack</normalizedToken>
(2003
</bibRefCitation>
: 214-215).
</paragraph>
</subSubSection>
</treatment>
</document>