treatments-xml/data/03/9D/87/039D87D0E940FFD4D5C2F8A7C18EFE05.xml

<document id="6AD13290A58FAB54F5E89027B144A994" ID-DOI="10.5281/zenodo.189729" ID-GBIF-Dataset="26744e03-61f8-4e09-acf1-1fc705f5cbec" ID-ISSN="1175-5326" ID-Zenodo-Dep="189729" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461104477324" checkinUser="plazi" docAuthor="Suárez-Morales, Eduardo &amp; Walsh, Elizabeth J." docDate="2009" docId="039D87D0E940FFD4D5C2F8A7C18EFE05" docLanguage="en" docName="zt02206p022.pdf" docOrigin="Zootaxa 2206" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Eucyclops cuatrocienegas Suárez-Morales &amp; Walsh, 2009, sp. nov." docType="treatment" docVersion="8" lastPageNumber="9" masterDocId="FFA4FFA8E941FFDDD555FFC6C521FFC5" masterDocTitle="Two new species of Eucyclops Claus (Copepoda: Cyclopoida) from the Chihuahuan Desert with a redescription of E. pseudoensifer Dussart" masterLastPageNumber="22" masterPageNumber="1" pageNumber="2" updateTime="1698592487973" updateUser="plazi">
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<mods:title id="CCA9CED46F56C2335ED1FB0EF478B96C">Two new species of Eucyclops Claus (Copepoda: Cyclopoida) from the Chihuahuan Desert with a redescription of E. pseudoensifer Dussart</mods:title>
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<mods:namePart id="35DA8842B68CD03BC1236CF92D7AB59A">Suárez-Morales, Eduardo</mods:namePart>
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<mods:namePart id="46549ACACC79B8838A8D64327FD8D897">Walsh, Elizabeth J.</mods:namePart>
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<mods:date id="65BCC26483782BA74836236598BF8E01">2009</mods:date>
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<treatment id="039D87D0E940FFD4D5C2F8A7C18EFE05" ID-DOI="http://doi.org/10.5281/zenodo.5625824" ID-GBIF-Taxon="119622726" ID-Zenodo-Dep="5625824" LSID="urn:lsid:plazi:treatment:039D87D0E940FFD4D5C2F8A7C18EFE05" httpUri="http://treatment.plazi.org/id/039D87D0E940FFD4D5C2F8A7C18EFE05" lastPageId="9" lastPageNumber="9" pageId="1" pageNumber="2">
<subSubSection id="C32E654DE940FFDCD5C2F8A7C431F867" pageId="1" pageNumber="2" type="nomenclature">
<paragraph id="8B8B36C6E940FFDCD5C2F8A7C714F8BF" blockId="1.[151,565,1888,1954]" box="[151,565,1888,1915]" pageId="1" pageNumber="2">
<heading id="D0C381AAE940FFDCD5C2F8A7C714F8BF" bold="true" box="[151,565,1888,1915]" fontSize="11" level="1" pageId="1" pageNumber="2" reason="1">
<emphasis id="B940EAD4E940FFDCD5C2F8A7C714F8BF" bold="true" box="[151,565,1888,1915]" pageId="1" pageNumber="2">
<taxonomicName id="4C344D45E940FFDCD5C2F8A7C4F1F8BE" box="[151,464,1889,1915]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="1" pageNumber="2" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E940FFDCD5C2F8A7C4F1F8BE" bold="true" box="[151,464,1889,1915]" italics="true" pageId="1" pageNumber="2">Eucyclops cuatrocienegas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE940FFDCD482F8A6C714F8BF" box="[471,565,1888,1914]" pageId="1" pageNumber="2" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8B8B36C6E940FFDCD5C2F84EC431F867" blockId="1.[151,565,1888,1954]" box="[151,272,1928,1954]" pageId="1" pageNumber="2">
(
<figureCitation id="130F2A43E940FFDCD5CAF84EC426F867" box="[159,263,1928,1954]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStartId-0="3.[151,259,1570,1594]" captionStartId-1="4.[151,259,1699,1723]" captionStartId-2="5.[151,259,1920,1944]" captionStartId-3="6.[151,255,1459,1483]" captionTargetBox-0="[487,1114,783,1569]" captionTargetBox-1="[152,1391,198,1698]" captionTargetBox-2="[187,1427,295,1919]" captionTargetBox-3="[257,1307,237,1401]" captionTargetId-0="figure@3.[475,1114,771,1573]" captionTargetId-1="figure@4.[151,1436,139,1780]" captionTargetId-2="figure@5.[151,1436,275,2007]" captionTargetId-3="figure@6.[201,1386,194,1435]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionTargetPageId-2="5" captionTargetPageId-3="6" captionText-0="FIGURE 1. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) antennule; C) caudal rami, dorsal view; D) same, ventral view. Scale bars A = 100 μm, B – D = 50 μm." captionText-1="FIGURE 2. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) fifth pedigerous and genital double somites, ventral view; B) mandible with palp; C) detail of gnathal blade; D) antenna; E) maxillule; F) maxilla; G) maxilliped. Scale bars A – G = 50 μm." captionText-2="FIGURE 3. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) leg 1 with coxal plate (separate), frontal view; B) leg 2 with coxal plate, frontal; C) leg 3 with coxal plate, frontal; D) leg 4 with coxal plate, frontal; E) leg 5. Scale bars A – E = 50 μm." captionText-3="FIGURE 4. Eucyclops cuatrocienegas sp. nov., adult male allotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) fifth pedigerous and genital somites, ventral; C) right caudal ramus, dorsal view; D) inner terminal caudal seta showing ornamentation pattern. E) antennule. Scale bars A = 100 μm, B – E = 60 μm." httpUri-0="https://zenodo.org/record/189730/files/figure.png" httpUri-1="https://zenodo.org/record/189731/files/figure.png" httpUri-2="https://zenodo.org/record/189732/files/figure.png" httpUri-3="https://zenodo.org/record/189733/files/figure.png" pageId="1" pageNumber="2">Figs 1–4</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C32E654DE943FFDFD5C2FF51C409FD0A" pageId="2" pageNumber="3" type="materials_examined">
<paragraph id="8B8B36C6E943FFDFD5C2FF51C196FE5F" blockId="2.[151,1437,151,1995]" pageId="2" pageNumber="3">
<emphasis id="B940EAD4E943FFDFD5C2FF51C4AAFF74" bold="true" box="[151,395,151,177]" pageId="2" pageNumber="3">Material examined.</emphasis>
<typeStatus id="548F8864E943FFDFD4C7FF5EC722FF77" box="[402,515,152,178]" pageId="2" pageNumber="3" type="holotype">Holotype</typeStatus>
. Adult female, dissected, mounted in glycerine sealed with Entellan, deposited in the zooplankton collection of ECOSUR (ECOCH-Z) (ECO-CHZ- 03586), collected from Poza 
<collectingCountry id="F3237656E943FFDFD04FFF78C0A2FF1D" box="[1306,1411,190,216]" name="Haiti" pageId="2" pageNumber="3">Tortugas</collectingCountry>
, a pond in the northern sector of the state of Coahuila, 
<collectingCountry id="F3237656E943FFDFD645FF23C64AFF3A" box="[784,875,229,255]" name="Mexico" pageId="2" pageNumber="3">Mexico</collectingCountry>
(
<geoCoordinate id="EE005001E943FFDFD629FF23C102FF3A" box="[892,1059,229,255]" direction="north" orientation="latitude" pageId="2" pageNumber="3" precision="1" value="26.93145">26º 55.887’N</geoCoordinate>
; 102º 
<geoCoordinate id="EE005001E943FFDFD13BFF23C1C8FF3A" box="[1134,1257,229,255]" direction="west" orientation="longitude" pageId="2" pageNumber="3" precision="1" value="-0.124699995">0 7.482 W</geoCoordinate>
), 
<date id="FF8A1006E943FFDFD1AAFF23C0B9FF3A" box="[1279,1432,229,255]" pageId="2" pageNumber="3" value="2006-07-07">July 7, 2006</date>
; coll. Elizabeth Walsh and colleagues. Allotype. One dissected male, same date, site, and collector, mounted in glycerine, slide sealed with Entellan® (ECO-CHZ-03588). 
<typeStatus id="548F8864E943FFDFD60DFEF4C6EFFE89" box="[856,974,306,332]" pageId="2" pageNumber="3" type="paratype">Paratypes</typeStatus>
. Five undissected adult females (ECO- CHZ-03587), same date, site, and collector, ethanol-preserved. Additional, non-paratype specimens and original zooplankton sample in the laboratory of E. Walsh, University of Texas at El Paso.
</paragraph>
<paragraph id="8B8B36C6E943FFDFD590FE60C409FD0A" blockId="2.[151,1437,151,1995]" pageId="2" pageNumber="3">
<emphasis id="B940EAD4E943FFDFD590FE60C457FE05" bold="true" box="[197,374,422,448]" pageId="2" pageNumber="3">
<typeStatus id="548F8864E943FFDFD590FE60C427FE05" box="[197,262,422,448]" pageId="2" pageNumber="3">Type</typeStatus>
locality.
</emphasis>
Poza 
<collectingCountry id="F3237656E943FFDFD491FE60C715FE05" box="[452,564,422,448]" name="Haiti" pageId="2" pageNumber="3">Tortugas</collectingCountry>
, Cuatro Ciénegas, Coahuila, 
<collectingCountry id="F3237656E943FFDFD6F6FE60C120FE05" box="[931,1025,422,448]" name="Mexico" pageId="2" pageNumber="3">Mexico</collectingCountry>
(
<geoCoordinate id="EE005001E943FFDFD146FE60C1E1FE05" box="[1043,1216,422,448]" direction="north" orientation="latitude" pageId="2" pageNumber="3" precision="1" value="26.93145">26º 55.887’N</geoCoordinate>
; 102º 
<geoCoordinate id="EE005001E943FFDFD05AFE60C0AFFE05" box="[1295,1422,422,448]" direction="west" orientation="longitude" pageId="2" pageNumber="3" precision="1" value="-0.124699995">0 7.482 W</geoCoordinate>
), elevation 
<specimenCount id="9D32FD4FE943FFDFD45FFE0BC47CFE22" box="[266,349,461,487]" pageId="2" pageNumber="3" type="generic">
<quantity id="4CCC9B23E943FFDFD45FFE0BC478FE22" box="[266,345,461,487]" metricMagnitude="2" metricUnit="m" metricValue="7.25" pageId="2" pageNumber="3" unit="m" value="725.0">725 m</quantity>
.
</specimenCount>
Shallow (~ 
<quantity id="4CCC9B23E943FFDFD4BAFE0BC73DFE22" box="[495,540,461,487]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="2" pageNumber="3" unit="m" value="1.0">1 m</quantity>
deep) poza (pond with vertical walls) near Poza Azul. Poza 
<collectingCountry id="F3237656E943FFDFD1BEFE0BC070FE22" box="[1259,1361,461,487]" name="Haiti" pageId="2" pageNumber="3">Tortugas</collectingCountry>
was a natural, small pond that was enlarged by previous owners for recreational swimming about 16 years ago. The pond is no longer used for swimming but is a site where visitors are shown features and fauna of Cuatro Cienegas from an observation deck. It is surrounded by grasses (spikerush, common reed, cordgrass, brittlegrass) and hairsedge. Aquatic vegetation includes stonewort and the dotleaf waterlilly. Physical parameters at the time of collection: water temperature 28.6°; 
<collectingCountry id="F3237656E943FFDFD6D9FD48C690FD6D" box="[908,945,654,680]" name="Philippines" pageId="2" pageNumber="3">pH</collectingCountry>
7.96; conductivity 1.69 milliS/cm; TDS 
<quantity id="4CCC9B23E943FFDFD5C2FD73C426FD0A" box="[151,263,693,719]" metricMagnitude="-6" metricUnit="kg" metricValue="1.099" pageId="2" pageNumber="3" unit="mg" value="1.099">1.099 mg</quantity>
/L.
</paragraph>
</subSubSection>
<subSubSection id="C32E654DE943FFDFD590FD1DC655FCD9" pageId="2" pageNumber="3" type="etymology">
<paragraph id="8B8B36C6E943FFDFD590FD1DC655FCD9" blockId="2.[151,1437,151,1995]" pageId="2" pageNumber="3">
<emphasis id="B940EAD4E943FFDFD590FD1DC470FD30" bold="true" box="[197,337,731,757]" pageId="2" pageNumber="3">Etymology</emphasis>
. The species name is a noun in apposition that makes reference to Cuatro Ciénegas, the Mexican protected area from which this species was collected.
</paragraph>
</subSubSection>
<subSubSection id="C32E654DE943FFDAD590FCEEC1DEFC55" lastPageId="7" lastPageNumber="8" pageId="2" pageNumber="3" type="description">
<paragraph id="8B8B36C6E943FFDFD590FCEEC742FBEE" blockId="2.[151,1437,151,1995]" pageId="2" pageNumber="3">
<emphasis id="B940EAD4E943FFDFD590FCEEC443FC87" bold="true" box="[197,354,808,834]" pageId="2" pageNumber="3">Description.</emphasis>
FEMALE (
<figureCitation id="130F2A43E943FFDFD4A1FCEFC71BFC86" box="[500,570,809,835]" captionStart="FIGURE 1" captionStartId="3.[151,259,1570,1594]" captionTargetBox="[487,1114,783,1569]" captionTargetId="figure@3.[475,1114,771,1573]" captionTargetPageId="3" captionText="FIGURE 1. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) antennule; C) caudal rami, dorsal view; D) same, ventral view. Scale bars A = 100 μm, B – D = 50 μm." httpUri="https://zenodo.org/record/189730/files/figure.png" pageId="2" pageNumber="3">Fig. 1</figureCitation>
A): Total body length = 0.818 
<emphasis id="B940EAD4E943FFDFD6E6FCEFC6E2FC87" box="[947,963,809,834]" italics="true" pageId="2" pageNumber="3">±</emphasis>
<quantity id="4CCC9B23E943FFDFD699FCEFC166FC86" box="[972,1095,809,835]" metricMagnitude="-5" metricUnit="m" metricValue="3.9" pageId="2" pageNumber="3" unit="mm" value="0.039">0.039 mm</quantity>
(n= 6) from anterior end of cephalothorax to posterior margin of caudal rami. Body elongate, cephalothorax relatively long, widest at midlength of cephalosome in dorsal view; lateral margins of pedigers 3 and 4 straight, slightly produced posteriorly. Cephalothorax length = 0.45 
<emphasis id="B940EAD4E943FFDFD7D4FC5BC7B0FC73" box="[641,657,925,950]" italics="true" pageId="2" pageNumber="3">±</emphasis>
<quantity id="4CCC9B23E943FFDFD7CCFC5BC622FC72" box="[665,771,925,951]" metricMagnitude="-5" metricUnit="m" metricValue="8.0" pageId="2" pageNumber="3" unit="mm" value="0.08">0.08 mm</quantity>
(n= 15), representing 66 % of total body length. Dorsal surface smooth, antennules reaching anterior margin of first pediger. Rostrum strong, wide, with rows of spinules on lateral surfaces of rostral base converging near anteriormost end. Urosome, excluding caudal rami, representing 31% of body length.
</paragraph>
<paragraph id="8B8B36C6E943FFDFD590FBFEC148FB5A" blockId="2.[151,1437,151,1995]" pageId="2" pageNumber="3">
Antennule (
<figureCitation id="130F2A43E943FFDFD407FBFEC4B6FB97" box="[338,407,1080,1106]" captionStart="FIGURE 1" captionStartId="3.[151,259,1570,1594]" captionTargetBox="[487,1114,783,1569]" captionTargetId="figure@3.[475,1114,771,1573]" captionTargetPageId="3" captionText="FIGURE 1. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) antennule; C) caudal rami, dorsal view; D) same, ventral view. Scale bars A = 100 μm, B – D = 50 μm." httpUri="https://zenodo.org/record/189730/files/figure.png" pageId="2" pageNumber="3">Fig. 1</figureCitation>
B): 12-segmented, armament per segment as follows (s= seta, ae= aesthetasc): 1(8s + rows of spinules on proximal and distal position), 2(3s), 3(2s), 4(5s), 5(2s), 6(2s+ 1 spine), 7(2s), 8(3s), 9(2s), 10(2), 11(2s), 12(7s+1ae). Hyaline, smooth, slender membrane on segments 10–12.
</paragraph>
<paragraph id="8B8B36C6E943FFDFD590FB6AC44BFAA5" blockId="2.[151,1437,151,1995]" pageId="2" pageNumber="3">
Antenna (
<figureCitation id="130F2A43E943FFDFD46CFB6AC4A0FB03" box="[313,385,1196,1222]" captionStart="FIGURE 2" captionStartId="4.[151,259,1699,1723]" captionTargetBox="[152,1391,198,1698]" captionTargetId="figure@4.[151,1436,139,1780]" captionTargetPageId="4" captionText="FIGURE 2. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) fifth pedigerous and genital double somites, ventral view; B) mandible with palp; C) detail of gnathal blade; D) antenna; E) maxillule; F) maxilla; G) maxilliped. Scale bars A – G = 50 μm." httpUri="https://zenodo.org/record/189731/files/figure.png" pageId="2" pageNumber="3">Fig. 2</figureCitation>
D): 4-segmented, basis with several rows of spinules on caudal surface. Largest spinules on subdistal clusters, near insertion point of 2 anterodistal setae. Basis with long exopodal pinnate seta. Second segment with 1 short external seta and subdistal row of spinules. Third segment with 8 setae; inner margin with row of spinules from proximal 1/3 increasing size distally. Fourth segment with 5 terminal and 2 subterminal setae.
</paragraph>
<paragraph id="8B8B36C6E943FFDFD590FAABC775FA6B" blockId="2.[151,1437,151,1995]" pageId="2" pageNumber="3">Labrum: Distal margin curved, with 11–12 rounded teeth. Two ventral plates in area where 2 groups of short spinules are medially conjoined.</paragraph>
<paragraph id="8B8B36C6E943FFDFD590FA7DC741F9E7" blockId="2.[151,1437,151,1995]" pageId="2" pageNumber="3">
Mandible (
<figureCitation id="130F2A43E943FFDFD41FFA7DC4B9FA10" box="[330,408,1467,1493]" captionStart="FIGURE 2" captionStartId="4.[151,259,1699,1723]" captionTargetBox="[152,1391,198,1698]" captionTargetId="figure@4.[151,1436,139,1780]" captionTargetPageId="4" captionText="FIGURE 2. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) fifth pedigerous and genital double somites, ventral view; B) mandible with palp; C) detail of gnathal blade; D) antenna; E) maxillule; F) maxilla; G) maxilliped. Scale bars A – G = 50 μm." httpUri="https://zenodo.org/record/189731/files/figure.png" pageId="2" pageNumber="3">Figs 2</figureCitation>
B, C): Gnathobase with strongly chitinized teeth; 4 ventral teeth bicuspidal, blunt, 3 dorsal ones acute. Palp with 2 long plumose setae and 1 naked seta of about half the length of the other two, row of 6–8 spinules on ventral surface.
</paragraph>
<paragraph id="8B8B36C6E943FFDFD590F9E8C7ABF9AA" blockId="2.[151,1437,151,1995]" pageId="2" pageNumber="3">
Maxillule (
<figureCitation id="130F2A43E943FFDFD41BF9E8C4B8F98D" box="[334,409,1582,1608]" captionStart="FIGURE 2" captionStartId="4.[151,259,1699,1723]" captionTargetBox="[152,1391,198,1698]" captionTargetId="figure@4.[151,1436,139,1780]" captionTargetPageId="4" captionText="FIGURE 2. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) fifth pedigerous and genital double somites, ventral view; B) mandible with palp; C) detail of gnathal blade; D) antenna; E) maxillule; F) maxilla; G) maxilliped. Scale bars A – G = 50 μm." httpUri="https://zenodo.org/record/189731/files/figure.png" pageId="2" pageNumber="3">Fig. 2</figureCitation>
E): Praecoxal arthrite armed with 6 setae and spines. Palp with 3 setae on proximal article; distal article with 3 subequal setae.
</paragraph>
<paragraph id="8B8B36C6E943FFDFD590F9BAC7D1F8F5" blockId="2.[151,1437,151,1995]" pageId="2" pageNumber="3">
Maxilla (
<figureCitation id="130F2A43E943FFDFD464F9BAC458F953" box="[305,377,1660,1686]" captionStart="FIGURE 2" captionStartId="4.[151,259,1699,1723]" captionTargetBox="[152,1391,198,1698]" captionTargetId="figure@4.[151,1436,139,1780]" captionTargetPageId="4" captionText="FIGURE 2. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) fifth pedigerous and genital double somites, ventral view; B) mandible with palp; C) detail of gnathal blade; D) antenna; E) maxillule; F) maxilla; G) maxilliped. Scale bars A – G = 50 μm." httpUri="https://zenodo.org/record/189731/files/figure.png" pageId="2" pageNumber="3">Fig. 2</figureCitation>
F): 5-segmented, praecoxa and coxa separated; precoxal endite protuberant, armed with 2 plumose setae, caudal surface naked. Coxa with single seta on middle inner margin. Proximal basipodal endite well developed, with 2 apical setae. Claw-like basal endite with 12–15 stout teeth, row of fine spinules on distal 1/3 of outer margin, plus short, slender seta on frontal side. Endopod 2-segmented, proximal segment with 2 long setae, distal segment with 3 stout setae.
</paragraph>
<paragraph id="8B8B36C6E943FFDFD590F8FBC67FF80E" blockId="2.[151,1437,151,1995]" pageId="2" pageNumber="3">
Maxilliped (
<figureCitation id="130F2A43E943FFDFD402F8FBC4BEF892" box="[343,415,1853,1879]" captionStart="FIGURE 2" captionStartId="4.[151,259,1699,1723]" captionTargetBox="[152,1391,198,1698]" captionTargetId="figure@4.[151,1436,139,1780]" captionTargetPageId="4" captionText="FIGURE 2. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) fifth pedigerous and genital double somites, ventral view; B) mandible with palp; C) detail of gnathal blade; D) antenna; E) maxillule; F) maxilla; G) maxilliped. Scale bars A – G = 50 μm." httpUri="https://zenodo.org/record/189731/files/figure.png" pageId="2" pageNumber="3">Fig. 2</figureCitation>
G): 4-segmented. Coxa with 3 short pinnate setae; row of spinules on surface of coxa. Basis with 2 pinnate setae, with row of long spinules near insertion of basipodal setae. Endopod 2-segmented, first segment with wide-based, stout seta; row of 6–8 long spinules along distal margin of segment. Second endopod armed with strong spiniform seta and 2 distal setae.
</paragraph>
<paragraph id="8B8B36C6E942FFDED590FF5EC432FEB6" blockId="3.[151,1437,152,371]" pageId="3" pageNumber="4">
Leg 1 (
<figureCitation id="130F2A43E942FFDED44DFF5EC47CFF77" box="[280,349,152,178]" captionStart="FIGURE 3" captionStartId="5.[151,259,1920,1944]" captionTargetBox="[187,1427,295,1919]" captionTargetId="figure@5.[151,1436,275,2007]" captionTargetPageId="5" captionText="FIGURE 3. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) leg 1 with coxal plate (separate), frontal view; B) leg 2 with coxal plate, frontal; C) leg 3 with coxal plate, frontal; D) leg 4 with coxal plate, frontal; E) leg 5. Scale bars A – E = 50 μm." httpUri="https://zenodo.org/record/189732/files/figure.png" pageId="3" pageNumber="4">Fig. 3</figureCitation>
A): Coupler with curved rows of 7–10 spinules on each side plus distal row of short spinules between pair of rounded chitinized projections. Coxa with strong coxal seta; row of spinules on outer proximal surface and row of 4–6 hair-like elements along outer margin. Basis with slender outer seta; inner margin with spinules and row of short hair-like elements on insertion point of strong, pinnate basipodal seta reaching beyond distal margin of second endopodal segment. Endopod and exopod 3-segmented. Armature as in 
<tableCitation id="C6B6037DE942FFDED5E0FE9FC42CFEB6" box="[181,269,345,371]" captionStart="TABLE 1" captionStartId="3.[151,240,422,446]" captionTargetBox="[151,1262,518,707]" captionTargetPageId="3" captionText="TABLE 1. Armature of swimming legs 1 – 4 (spines in Roman numerals, setae in Arabic) of Eucyclops cuatrocienegas sp. nov., E. chihuahuensis sp. nov., and E. pseudoensifer Dussart, 1984. Sequence follows external to internal positions." httpUri="http://table.plazi.org/id/DF4B664EE942FFDED5C2FE60C0BAFE25" pageId="3" pageNumber="4" tableUuid="DF4B664EE942FFDED5C2FE60C0BAFE25">Table 1</tableCitation>
.
</paragraph>
<caption id="DF4B664EE942FFDED5C2FE60C0BAFE25" ID-Table-UUID="DF4B664EE942FFDED5C2FE60C0BAFE25" httpUri="http://table.plazi.org/id/DF4B664EE942FFDED5C2FE60C0BAFE25" pageId="3" pageNumber="4" targetBox="[151,1262,518,707]" targetIsTable="true" targetPageId="3">
<paragraph id="8B8B36C6E942FFDED5C2FE60C0BAFE25" blockId="3.[151,1435,422,481]" pageId="3" pageNumber="4">
<emphasis id="B940EAD4E942FFDED5C2FE60C42AFE7B" bold="true" box="[151,267,422,446]" pageId="3" pageNumber="4">TABLE 1.</emphasis>
Armature of swimming legs 1–4 (spines in Roman numerals, setae in Arabic) of 
<taxonomicName id="4C344D45E942FFDED1D7FE60C0BAFE78" box="[1154,1435,422,445]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="3" pageNumber="4" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E942FFDED1D7FE60C0BAFE78" box="[1154,1435,422,445]" italics="true" pageId="3" pageNumber="4">Eucyclops cuatrocienegas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE942FFDED5C2FE0FC5CDFE24" box="[151,236,457,481]" pageId="3" pageNumber="4" rank="species">
<emphasis id="B940EAD4E942FFDED5C2FE0FC5CDFE24" bold="true" box="[151,236,457,481]" pageId="3" pageNumber="4">sp. nov.</emphasis>
</taxonomicNameLabel>
, 
<taxonomicName id="4C344D45E942FFDED5ACFE0FC48EFE25" box="[249,431,457,480]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="3" pageNumber="4" phylum="Arthropoda" rank="species" species="chihuahuensis" status="sp. nov.">
<emphasis id="B940EAD4E942FFDED5ACFE0FC48EFE25" box="[249,431,457,480]" italics="true" pageId="3" pageNumber="4">E. chihuahuensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE942FFDED4E3FE0FC72AFE24" box="[438,523,457,481]" pageId="3" pageNumber="4" rank="species">
<emphasis id="B940EAD4E942FFDED4E3FE0FC72AFE24" bold="true" box="[438,523,457,481]" pageId="3" pageNumber="4">sp. nov.</emphasis>
</taxonomicNameLabel>
, and 
<taxonomicName id="4C344D45E942FFDED713FE0FC6B4FE25" authority="Dussart, 1984" authorityName="Dussart" authorityYear="1984" box="[582,917,457,480]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="3" pageNumber="4" phylum="Arthropoda" rank="species" species="pseudoensifer">
<emphasis id="B940EAD4E942FFDED713FE0FC7D6FE25" box="[582,759,457,480]" italics="true" pageId="3" pageNumber="4">E. pseudoensifer</emphasis>
Dussart, 1984
</taxonomicName>
. Sequence follows external to internal positions.
</paragraph>
</caption>
<paragraph id="8B8B36C6E942FFDED422FDC0C1CFFD06" pageId="3" pageNumber="4">
<table id="F934C466E9420022D5C2FDC0C1CFFD06" box="[151,1262,518,707]" gridcols="5" gridrows="5" pageId="3" pageNumber="4">
<tr id="35043484E9420022D5C2FDC0C1CFFDD8" box="[151,1262,518,541]" gridrow="0" pageId="3" pageNumber="4" rowspan-0="1">
<th id="76D55DF8E9420022D422FDC0C488FDD8" box="[375,425,518,541]" gridcol="1" gridrow="0" pageId="3" pageNumber="4">coxa</th>
<th id="76D55DF8E9420022D701FDC0C7ABFDD8" box="[596,650,518,541]" gridcol="2" gridrow="0" pageId="3" pageNumber="4">basis</th>
<th id="76D55DF8E9420022D668FDC0C6F9FDD8" box="[829,984,518,541]" gridcol="3" gridrow="0" pageId="3" pageNumber="4">endopodite</th>
<th id="76D55DF8E9420022D10BFDC0C1CFFDD8" box="[1118,1262,518,541]" gridcol="4" gridrow="0" pageId="3" pageNumber="4">exopodite</th>
</tr>
<tr id="35043484E9420022D5C2FD82C1CFFD9E" box="[151,1262,580,603]" gridrow="1" pageId="3" pageNumber="4">
<th id="76D55DF8E9420022D5C2FD82C5EAFD9E" box="[151,203,580,603]" gridcol="0" gridrow="1" pageId="3" pageNumber="4">leg 1</th>
<td id="76D55DF8E9420022D422FD82C488FD9E" box="[375,425,580,603]" gridcol="1" gridrow="1" pageId="3" pageNumber="4">0-1</td>
<td id="76D55DF8E9420022D701FD82C7ABFD9E" box="[596,650,580,603]" gridcol="2" gridrow="1" pageId="3" pageNumber="4">1-I</td>
<td id="76D55DF8E9420022D668FD82C6F9FD9E" box="[829,984,580,603]" gridcol="3" gridrow="1" pageId="3" pageNumber="4">0-;0-0;0-2</td>
<td id="76D55DF8E9420022D10BFD82C1CFFD9E" box="[1118,1262,580,603]" gridcol="4" gridrow="1" pageId="3" pageNumber="4">I-0;I-0; 0,3</td>
</tr>
<tr id="35043484E9420022D5C2FDA1C1CFFDBB" box="[151,1262,615,638]" gridrow="2" pageId="3" pageNumber="4">
<th id="76D55DF8E9420022D5C2FDA1C5EAFDBB" box="[151,203,615,638]" gridcol="0" gridrow="2" pageId="3" pageNumber="4">leg 2</th>
<td id="76D55DF8E9420022D422FDA1C488FDBB" box="[375,425,615,638]" gridcol="1" gridrow="2" pageId="3" pageNumber="4">0-1</td>
<td id="76D55DF8E9420022D701FDA1C7ABFDBB" box="[596,650,615,638]" gridcol="2" gridrow="2" pageId="3" pageNumber="4">1-0</td>
<td id="76D55DF8E9420022D668FDA1C6F9FDBB" box="[829,984,615,638]" gridcol="3" gridrow="2" pageId="3" pageNumber="4">1-0;2-0;3,1,I,1</td>
<td id="76D55DF8E9420022D10BFDA1C1CFFDBB" box="[1118,1262,615,638]" gridcol="4" gridrow="2" pageId="3" pageNumber="4">I-1;I-1;IV,1,4</td>
</tr>
<tr id="35043484E9420022D5C2FD4CC1CFFD64" box="[151,1262,650,673]" gridrow="3" pageId="3" pageNumber="4">
<th id="76D55DF8E9420022D5C2FD4CC5EAFD64" box="[151,203,650,673]" gridcol="0" gridrow="3" pageId="3" pageNumber="4">leg 3</th>
<td id="76D55DF8E9420022D422FD4CC488FD64" box="[375,425,650,673]" gridcol="1" gridrow="3" pageId="3" pageNumber="4">0-1</td>
<td id="76D55DF8E9420022D701FD4CC7ABFD64" box="[596,650,650,673]" gridcol="2" gridrow="3" pageId="3" pageNumber="4">1-0</td>
<td id="76D55DF8E9420022D668FD4CC6F9FD64" box="[829,984,650,673]" gridcol="3" gridrow="3" pageId="3" pageNumber="4">1-0;2-0;3,1,I,1</td>
<td id="76D55DF8E9420022D10BFD4CC1CFFD64" box="[1118,1262,650,673]" gridcol="4" gridrow="3" pageId="3" pageNumber="4">I-1;I-1;IV,1,4</td>
</tr>
<tr id="35043484E9420022D5C2FD6AC1CFFD06" box="[151,1262,684,707]" gridrow="4" pageId="3" pageNumber="4">
<th id="76D55DF8E9420022D5C2FD6AC5EAFD06" box="[151,203,684,707]" gridcol="0" gridrow="4" pageId="3" pageNumber="4">leg 4</th>
<td id="76D55DF8E9420022D422FD6AC488FD06" box="[375,425,684,707]" gridcol="1" gridrow="4" pageId="3" pageNumber="4">0-1</td>
<td id="76D55DF8E9420022D701FD6AC7ABFD06" box="[596,650,684,707]" gridcol="2" gridrow="4" pageId="3" pageNumber="4">1-0</td>
<td id="76D55DF8E9420022D668FD6AC6F9FD06" box="[829,984,684,707]" gridcol="3" gridrow="4" pageId="3" pageNumber="4">1-0;2-0;2,II,1</td>
<td id="76D55DF8E9420022D10BFD6AC1CFFD06" box="[1118,1262,684,707]" gridcol="4" gridrow="4" pageId="3" pageNumber="4">I-1;I-1;III,1,4</td>
</tr>
</table>
</paragraph>
<caption id="DF4B664EE942FFDED5C2F9E4C475F9BC" httpUri="https://zenodo.org/record/189730/files/figure.png" pageId="3" pageNumber="4" targetBox="[487,1114,783,1569]" targetPageId="3">
<paragraph id="8B8B36C6E942FFDED5C2F9E4C475F9BC" blockId="3.[151,1436,1570,1657]" pageId="3" pageNumber="4">
<emphasis id="B940EAD4E942FFDED5C2F9E4C439F9FF" bold="true" box="[151,280,1570,1594]" pageId="3" pageNumber="4">FIGURE 1</emphasis>
. 
<taxonomicName id="4C344D45E942FFDED472F9E4C76FF9FC" box="[295,590,1570,1593]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="3" pageNumber="4" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E942FFDED472F9E4C76FF9FC" box="[295,590,1570,1593]" italics="true" pageId="3" pageNumber="4">Eucyclops cuatrocienegas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE942FFDED703F9E4C790F9FF" box="[598,689,1570,1594]" pageId="3" pageNumber="4" rank="species">
<emphasis id="B940EAD4E942FFDED703F9E4C790F9FF" bold="true" box="[598,689,1570,1594]" pageId="3" pageNumber="4">sp. nov.</emphasis>
</taxonomicNameLabel>
, adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) antennule; C) caudal rami, dorsal view; D) same, ventral view. Scale bars A=100 μm, B–D=50 μm.
</paragraph>
</caption>
<paragraph id="8B8B36C6E942FFDED590F963C10EF89F" blockId="3.[151,1437,1701,2036]" pageId="3" pageNumber="4">
Leg 2 (
<figureCitation id="130F2A43E942FFDED44DF963C47CF97A" box="[280,349,1701,1727]" captionStart="FIGURE 3" captionStartId="5.[151,259,1920,1944]" captionTargetBox="[187,1427,295,1919]" captionTargetId="figure@5.[151,1436,275,2007]" captionTargetPageId="5" captionText="FIGURE 3. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) leg 1 with coxal plate (separate), frontal view; B) leg 2 with coxal plate, frontal; C) leg 3 with coxal plate, frontal; D) leg 4 with coxal plate, frontal; E) leg 5. Scale bars A – E = 50 μm." httpUri="https://zenodo.org/record/189732/files/figure.png" pageId="3" pageNumber="4">Fig. 3</figureCitation>
B): Coupler with transverse row of 10–13 minute spinules; distal margin with 2 low, rounded projections. Coxa with strong inner coxal seta; outer margin with proximal row of spinules. Basis with slender basipodal seta on outer margin, inner margin with hair-like ornamentation. Distal margin with disto-medial expansion between insertion point of exopod and endopod. Endopod and exopod 3-segmented; first and second exopodal segments with distal row of spinules. Armature as in 
<tableCitation id="C6B6037DE942FFDED684F886C108F89F" box="[977,1065,1856,1882]" captionStart="TABLE 1" captionStartId="3.[151,240,422,446]" captionTargetBox="[151,1262,518,707]" captionTargetPageId="3" captionText="TABLE 1. Armature of swimming legs 1 – 4 (spines in Roman numerals, setae in Arabic) of Eucyclops cuatrocienegas sp. nov., E. chihuahuensis sp. nov., and E. pseudoensifer Dussart, 1984. Sequence follows external to internal positions." httpUri="http://table.plazi.org/id/DF4B664EE942FFDED5C2FE60C0BAFE25" pageId="3" pageNumber="4" tableUuid="DF4B664EE942FFDED5C2FE60C0BAFE25">Table 1</tableCitation>
.
</paragraph>
<paragraph id="8B8B36C6E942FFDED590F8A0C717F831" blockId="3.[151,1437,1701,2036]" pageId="3" pageNumber="4">
Leg 3 (
<figureCitation id="130F2A43E942FFDED44CF8A0C47EF845" box="[281,351,1894,1920]" captionStart="FIGURE 3" captionStartId="5.[151,259,1920,1944]" captionTargetBox="[187,1427,295,1919]" captionTargetId="figure@5.[151,1436,275,2007]" captionTargetPageId="5" captionText="FIGURE 3. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) leg 1 with coxal plate (separate), frontal view; B) leg 2 with coxal plate, frontal; C) leg 3 with coxal plate, frontal; D) leg 4 with coxal plate, frontal; E) leg 5. Scale bars A – E = 50 μm." httpUri="https://zenodo.org/record/189732/files/figure.png" pageId="3" pageNumber="4">Fig. 3</figureCitation>
C): Coupler with 2 frontal, transverse rows of 25–30 tiny spinules, distal margin with 2 low, rounded chitinized projections, naked. Coxa with strong inner coxal seta; outer margin with proximal row of spinules. Basis with seta on outer margin; row of spines at insertion point of seta. Endopod and exopod 3- segmented. Armature as in 
<tableCitation id="C6B6037DE942FFDED48DF81CC711F831" box="[472,560,2010,2036]" captionStart="TABLE 1" captionStartId="3.[151,240,422,446]" captionTargetBox="[151,1262,518,707]" captionTargetPageId="3" captionText="TABLE 1. Armature of swimming legs 1 – 4 (spines in Roman numerals, setae in Arabic) of Eucyclops cuatrocienegas sp. nov., E. chihuahuensis sp. nov., and E. pseudoensifer Dussart, 1984. Sequence follows external to internal positions." httpUri="http://table.plazi.org/id/DF4B664EE942FFDED5C2FE60C0BAFE25" pageId="3" pageNumber="4" tableUuid="DF4B664EE942FFDED5C2FE60C0BAFE25">Table 1</tableCitation>
.
</paragraph>
<caption id="DF4B664EE945FFD9D5C2F965C6EFF93A" httpUri="https://zenodo.org/record/189731/files/figure.png" pageId="4" pageNumber="5" targetBox="[152,1391,198,1698]" targetPageId="4">
<paragraph id="8B8B36C6E945FFD9D5C2F965C6EFF93A" blockId="4.[151,1436,1699,1791]" pageId="4" pageNumber="5">
<emphasis id="B940EAD4E945FFD9D5C2F965C43EF97E" bold="true" box="[151,287,1699,1723]" pageId="4" pageNumber="5">FIGURE 2.</emphasis>
<taxonomicName id="4C344D45E945FFD9D47DF965C76FF97F" box="[296,590,1699,1722]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="4" pageNumber="5" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E945FFD9D47DF965C76FF97F" box="[296,590,1699,1722]" italics="true" pageId="4" pageNumber="5">Eucyclops cuatrocienegas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE945FFD9D703F965C790F97E" box="[598,689,1699,1723]" pageId="4" pageNumber="5" rank="species">
<emphasis id="B940EAD4E945FFD9D703F965C790F97E" bold="true" box="[598,689,1699,1723]" pageId="4" pageNumber="5">sp. nov.</emphasis>
</taxonomicNameLabel>
, adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) fifth pedigerous and genital double somites, ventral view; B) mandible with palp; C) detail of gnathal blade; D) antenna; E) maxillule; F) maxilla; G) maxilliped. Scale bars A–G=50 μm.
</paragraph>
</caption>
<paragraph id="8B8B36C6E945FFD8D590F8E8C4EEFF1D" blockId="4.[151,1436,1838,2018]" lastBlockId="5.[151,1436,152,294]" lastPageId="5" lastPageNumber="6" pageId="4" pageNumber="5">
Leg 4 (
<figureCitation id="130F2A43E945FFD9D449F8E8C445F88D" box="[284,356,1838,1864]" captionStart="FIGURE 3" captionStartId="5.[151,259,1920,1944]" captionTargetBox="[187,1427,295,1919]" captionTargetId="figure@5.[151,1436,275,2007]" captionTargetPageId="5" captionText="FIGURE 3. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) leg 1 with coxal plate (separate), frontal view; B) leg 2 with coxal plate, frontal; C) leg 3 with coxal plate, frontal; D) leg 4 with coxal plate, frontal; E) leg 5. Scale bars A – E = 50 μm." httpUri="https://zenodo.org/record/189732/files/figure.png" pageId="4" pageNumber="5">Fig. 3</figureCitation>
D): Coupler with medial row of 7–8 spinules on each side of plate; distal margin straight, armed with row of spinules. Coxa with strong inner coxal seta. Basis with slender basipodal seta and row of strong spines on outer margin. Endopod and exopod 3-segmented. Armature as in 
<tableCitation id="C6B6037DE945FFD9D1D4F8BDC1FDF850" box="[1153,1244,1915,1941]" captionStart="TABLE 1" captionStartId="3.[151,240,422,446]" captionTargetBox="[151,1262,518,707]" captionTargetPageId="3" captionText="TABLE 1. Armature of swimming legs 1 – 4 (spines in Roman numerals, setae in Arabic) of Eucyclops cuatrocienegas sp. nov., E. chihuahuensis sp. nov., and E. pseudoensifer Dussart, 1984. Sequence follows external to internal positions." httpUri="http://table.plazi.org/id/DF4B664EE942FFDED5C2FE60C0BAFE25" pageId="4" pageNumber="5" tableUuid="DF4B664EE942FFDED5C2FE60C0BAFE25">Table 1</tableCitation>
. Outer terminal endopodal spine finely pinnate along both margins; inner seta with spinules on outer margin only, inner margin smooth. Length ratio of inner/ outer terminal spines of Enp 3= 1.50–1.54. Length/width ratio of third endopodal segment= 3.1. Insertion point of seta on outer margin of Enp 3= 58%. Length of inner endopodal spine/endopod 3= 1.1–1.3.
</paragraph>
<paragraph id="8B8B36C6E944FFD8D590FF23C194FEE3" blockId="5.[151,1436,152,294]" pageId="5" pageNumber="6">
Leg 5 (
<figureCitation id="130F2A43E944FFD8D44CFF23C442FF3A" box="[281,355,229,255]" captionStart="FIGURE 2" captionStartId="4.[151,259,1699,1723]" captionTargetBox="[152,1391,198,1698]" captionTargetId="figure@4.[151,1436,139,1780]" captionTargetPageId="4" captionText="FIGURE 2. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) fifth pedigerous and genital double somites, ventral view; B) mandible with palp; C) detail of gnathal blade; D) antenna; E) maxillule; F) maxilla; G) maxilliped. Scale bars A – G = 50 μm." httpUri="https://zenodo.org/record/189731/files/figure.png" pageId="5" pageNumber="6">Figs 2</figureCitation>
A, 3E): Consisting of article armed with 2 setae and 1 spiniform seta, middle seta as long as outer one; inner spiniform seta pinnate, slightly curved, short, as long as bearing segment.
</paragraph>
<caption id="DF4B664EE944FFD8D5C2F846C696F818" httpUri="https://zenodo.org/record/189732/files/figure.png" pageId="5" pageNumber="6" targetBox="[187,1427,295,1919]" targetPageId="5">
<paragraph id="8B8B36C6E944FFD8D5C2F846C696F818" blockId="5.[151,1436,1920,2013]" pageId="5" pageNumber="6">
<emphasis id="B940EAD4E944FFD8D5C2F846C401F85D" bold="true" box="[151,288,1920,1944]" pageId="5" pageNumber="6">FIGURE 3.</emphasis>
<taxonomicName id="4C344D45E944FFD8D472F847C76FF85D" box="[295,590,1921,1944]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="5" pageNumber="6" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E944FFD8D472F847C76FF85D" box="[295,590,1921,1944]" italics="true" pageId="5" pageNumber="6">Eucyclops cuatrocienegas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE944FFD8D703F846C790F85D" box="[598,689,1920,1944]" pageId="5" pageNumber="6" rank="species">
<emphasis id="B940EAD4E944FFD8D703F846C790F85D" bold="true" box="[598,689,1920,1944]" pageId="5" pageNumber="6">sp. nov.</emphasis>
</taxonomicNameLabel>
, adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) leg 1 with coxal plate (separate), frontal view; B) leg 2 with coxal plate, frontal; C) leg 3 with coxal plate, frontal; D) leg 4 with coxal plate, frontal; E) leg 5. Scale bars A–E=50 μm.
</paragraph>
</caption>
<caption id="DF4B664EE947FFDBD5C2FA75C1FEF9D5" httpUri="https://zenodo.org/record/189733/files/figure.png" pageId="6" pageNumber="7" targetBox="[257,1307,237,1401]" targetPageId="6">
<paragraph id="8B8B36C6E947FFDBD5C2FA75C1FEF9D5" blockId="6.[151,1437,1459,1552]" pageId="6" pageNumber="7">
<emphasis id="B940EAD4E947FFDBD5C2FA75C43BFA0E" bold="true" box="[151,282,1459,1483]" pageId="6" pageNumber="7">FIGURE 4.</emphasis>
<taxonomicName id="4C344D45E947FFDBD474FA75C719FA0F" box="[289,568,1459,1482]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="6" pageNumber="7" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E947FFDBD474FA75C719FA0F" box="[289,568,1459,1482]" italics="true" pageId="6" pageNumber="7">Eucyclops cuatrocienegas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE947FFDBD76AFA75C7B4FA0E" box="[575,661,1459,1483]" pageId="6" pageNumber="7" rank="species">
<emphasis id="B940EAD4E947FFDBD76AFA75C7B4FA0E" bold="true" box="[575,661,1459,1483]" pageId="6" pageNumber="7">sp. nov.</emphasis>
</taxonomicNameLabel>
, adult male allotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) fifth pedigerous and genital somites, ventral; C) right caudal ramus, dorsal view; D) inner terminal caudal seta showing ornamentation pattern. E) antennule. Scale bars A=100 μm, B–E=60 μm.
</paragraph>
</caption>
<paragraph id="8B8B36C6E947FFDBD590F9F8C718F9BA" blockId="6.[151,1437,1598,2011]" pageId="6" pageNumber="7">
Vestigial leg 6 (
<figureCitation id="130F2A43E947FFDBD4D0F9F8C4EEF99D" box="[389,463,1598,1624]" captionStart="FIGURE 2" captionStartId="4.[151,259,1699,1723]" captionTargetBox="[152,1391,198,1698]" captionTargetId="figure@4.[151,1436,139,1780]" captionTargetPageId="4" captionText="FIGURE 2. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) fifth pedigerous and genital double somites, ventral view; B) mandible with palp; C) detail of gnathal blade; D) antenna; E) maxillule; F) maxilla; G) maxilliped. Scale bars A – G = 50 μm." httpUri="https://zenodo.org/record/189731/files/figure.png" pageId="6" pageNumber="7">Fig. 2</figureCitation>
A): Small, low plate near lateral margin of genital somite with laterally directed dorsal seta and tiny lateral spinules.
</paragraph>
<paragraph id="8B8B36C6E947FFDBD590F94DC4FEF848" blockId="6.[151,1437,1598,2011]" pageId="6" pageNumber="7">
Urosome (
<figureCitation id="130F2A43E947FFDBD417F94DC4ABF960" box="[322,394,1675,1701]" captionStart="FIGURE 1" captionStartId="3.[151,259,1570,1594]" captionTargetBox="[487,1114,783,1569]" captionTargetId="figure@3.[475,1114,771,1573]" captionTargetPageId="3" captionText="FIGURE 1. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) antennule; C) caudal rami, dorsal view; D) same, ventral view. Scale bars A = 100 μm, B – D = 50 μm." httpUri="https://zenodo.org/record/189730/files/figure.png" pageId="6" pageNumber="7">Figs 1</figureCitation>
A, 2A): Urosome comprising fifth pedigerous somite, genital double somite and 3 free somites; posterior margin of genital double and postgenital somites serrate dorsally and ventrally. Fifth pediger armed with tuft of hair-like elements on outer distal margin. Genital somite representing 13.9–14.3 % of total body length; anterior half of genital somite expanded laterally forming subtriangular processes. Seminal receptacle wide, with short, rounded lateral arms; lateral channels curved. Posterior margin rounded, sac-like (
<figureCitation id="130F2A43E947FFDBD457F88BC468F8A2" box="[258,329,1869,1895]" captionStart="FIGURE 2" captionStartId="4.[151,259,1699,1723]" captionTargetBox="[152,1391,198,1698]" captionTargetId="figure@4.[151,1436,139,1780]" captionTargetPageId="4" captionText="FIGURE 2. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) fifth pedigerous and genital double somites, ventral view; B) mandible with palp; C) detail of gnathal blade; D) antenna; E) maxillule; F) maxilla; G) maxilliped. Scale bars A – G = 50 μm." httpUri="https://zenodo.org/record/189731/files/figure.png" pageId="6" pageNumber="7">Fig. 2</figureCitation>
A). Anal somite armed with row of spinules along posterior margin; ventral row covering only half of margin (
<figureCitation id="130F2A43E947FFDBD418F8B5C4B2F848" box="[333,403,1907,1933]" captionStart="FIGURE 1" captionStartId="3.[151,259,1570,1594]" captionTargetBox="[487,1114,783,1569]" captionTargetId="figure@3.[475,1114,771,1573]" captionTargetPageId="3" captionText="FIGURE 1. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) antennule; C) caudal rami, dorsal view; D) same, ventral view. Scale bars A = 100 μm, B – D = 50 μm." httpUri="https://zenodo.org/record/189730/files/figure.png" pageId="6" pageNumber="7">Figs 1</figureCitation>
C, D).
</paragraph>
<paragraph id="8B8B36C6E947FFDAD590F85CC61EFE5F" blockId="6.[151,1437,1598,2011]" lastBlockId="7.[151,1437,152,2034]" lastPageId="7" lastPageNumber="8" pageId="6" pageNumber="7">
Caudal rami (
<figureCitation id="130F2A43E947FFDBD43DF85CC495F871" box="[360,436,1946,1972]" captionStart="FIGURE 1" captionStartId="3.[151,259,1570,1594]" captionTargetBox="[487,1114,783,1569]" captionTargetId="figure@3.[475,1114,771,1573]" captionTargetPageId="3" captionText="FIGURE 1. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) antennule; C) caudal rami, dorsal view; D) same, ventral view. Scale bars A = 100 μm, B – D = 50 μm." httpUri="https://zenodo.org/record/189730/files/figure.png" pageId="6" pageNumber="7">Figs 1</figureCitation>
C, D): Rami relatively short, representing 8.5 % of total body length, 0.35 times as long as urosome. Length/width ratio= 3.1–3.4. Inner margin smooth. Outer margin armed with row of spinules from proximal to distal margin; spines increasing in size distally, distalmost spines of saw relatively long. Lateral seta noticeably short, peg-like, thick at base, tapering into acute end; inserted subterminally near insertion point of lateralmost terminal spiniform seta. Lateralmost terminal seta 0.63 times as long as caudal ramus. Dorsal seta noticeably short, 0.42–0.47 times as long as caudal ramus. Inner terminal seta longest, about 2 times longer than outer terminal seta, armed with a few spinules along proximal half, followed by regular plumose pattern (
<figureCitation id="130F2A43E946FFDAD492FE9FC72DFEB6" box="[455,524,345,371]" captionStart="FIGURE 1" captionStartId="3.[151,259,1570,1594]" captionTargetBox="[487,1114,783,1569]" captionTargetId="figure@3.[475,1114,771,1573]" captionTargetPageId="3" captionText="FIGURE 1. Eucyclops cuatrocienegas sp. nov., adult female holotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) antennule; C) caudal rami, dorsal view; D) same, ventral view. Scale bars A = 100 μm, B – D = 50 μm." httpUri="https://zenodo.org/record/189730/files/figure.png" pageId="7" pageNumber="8">Fig. 1</figureCitation>
A). Outer terminal setae with same ornamentation pattern, half their length with sparse spinulation, distal half with regular setulation.
</paragraph>
<paragraph id="8B8B36C6E946FFDAD593FE60C45FFDF1" blockId="7.[151,1437,152,2034]" pageId="7" pageNumber="8">
MALE (
<figureCitation id="130F2A43E946FFDAD479FE60C45BFE05" box="[300,378,422,448]" captionStart="FIGURE 4" captionStartId="6.[151,255,1459,1483]" captionTargetBox="[257,1307,237,1401]" captionTargetId="figure@6.[201,1386,194,1435]" captionTargetPageId="6" captionText="FIGURE 4. Eucyclops cuatrocienegas sp. nov., adult male allotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) fifth pedigerous and genital somites, ventral; C) right caudal ramus, dorsal view; D) inner terminal caudal seta showing ornamentation pattern. E) antennule. Scale bars A = 100 μm, B – E = 60 μm." httpUri="https://zenodo.org/record/189733/files/figure.png" pageId="7" pageNumber="8">Figs 4</figureCitation>
A–E): Body elongate, without hairs or pits on dorsal surface. Noticeably smaller, more slender than female. Total body length of allotype = 
<quantity id="4CCC9B23E946FFDAD656FE0BC64EFE22" box="[771,879,461,487]" metricMagnitude="-4" metricUnit="m" metricValue="6.8" pageId="7" pageNumber="8" unit="mm" value="0.68">0.68 mm</quantity>
, cephalothorax length = 
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, representing almost 64% of total body length, urosome length = 
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. Body and appendages as in females except for sexual dimorphism.
</paragraph>
<paragraph id="8B8B36C6E946FFDAD590FD87C7D8FD9E" blockId="7.[151,1437,152,2034]" box="[197,761,577,603]" pageId="7" pageNumber="8">
Antennule (
<figureCitation id="130F2A43E946FFDAD41AFD87C4B7FD9E" box="[335,406,577,603]" captionStart="FIGURE 4" captionStartId="6.[151,255,1459,1483]" captionTargetBox="[257,1307,237,1401]" captionTargetId="figure@6.[201,1386,194,1435]" captionTargetPageId="6" captionText="FIGURE 4. Eucyclops cuatrocienegas sp. nov., adult male allotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) fifth pedigerous and genital somites, ventral; C) right caudal ramus, dorsal view; D) inner terminal caudal seta showing ornamentation pattern. E) antennule. Scale bars A = 100 μm, B – E = 60 μm." httpUri="https://zenodo.org/record/189733/files/figure.png" pageId="7" pageNumber="8">Fig. 4</figureCitation>
E): Geniculate, 14-segmented.
</paragraph>
<paragraph id="8B8B36C6E946FFDAD590FDAEC0BCFD0A" blockId="7.[151,1437,152,2034]" pageId="7" pageNumber="8">Vestigial leg 6: consisting of broad subquadrate plate with long medial stout spine reaching beyond succeeding posterior urosomite; cluster of spines on insertion of spine. Article with 2 outer seta subequal in length and breath. Spine twice as long as 2 lateral setae, reaching about proximal 1/3 of succeeding urosomite.</paragraph>
<paragraph id="8B8B36C6E946FFDAD590FD1AC1DEFC55" blockId="7.[151,1437,152,2034]" pageId="7" pageNumber="8">
Urosome. 5-segmented, genital somite largest of urosome; relative lengths of urosomites as: 32.1: 24: 23.3: 13.3: 7.3=100. Ventral and dorsal surface of anal somite smooth; distal margin with continuous dorsoventral row of spines. Anal plate smooth. Caudal rami relatively shorter than in female, 2.8 times longer than wide (
<figureCitation id="130F2A43E946FFDAD448FC96C447FCAF" box="[285,358,848,874]" captionStart="FIGURE 4" captionStartId="6.[151,255,1459,1483]" captionTargetBox="[257,1307,237,1401]" captionTargetId="figure@6.[201,1386,194,1435]" captionTargetPageId="6" captionText="FIGURE 4. Eucyclops cuatrocienegas sp. nov., adult male allotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) fifth pedigerous and genital somites, ventral; C) right caudal ramus, dorsal view; D) inner terminal caudal seta showing ornamentation pattern. E) antennule. Scale bars A = 100 μm, B – E = 60 μm." httpUri="https://zenodo.org/record/189733/files/figure.png" pageId="7" pageNumber="8">Fig. 4</figureCitation>
C), margins smooth. Inner and outer terminal caudal seta with ornamentation as in female (
<figureCitation id="130F2A43E946FFDAD5CAFCB0C5C7FC55" box="[159,230,886,912]" captionStart="FIGURE 4" captionStartId="6.[151,255,1459,1483]" captionTargetBox="[257,1307,237,1401]" captionTargetId="figure@6.[201,1386,194,1435]" captionTargetPageId="6" captionText="FIGURE 4. Eucyclops cuatrocienegas sp. nov., adult male allotype from Cuatro Ciénegas, Coahuila, northern Mexico. A) habitus, dorsal view; B) fifth pedigerous and genital somites, ventral; C) right caudal ramus, dorsal view; D) inner terminal caudal seta showing ornamentation pattern. E) antennule. Scale bars A = 100 μm, B – E = 60 μm." httpUri="https://zenodo.org/record/189733/files/figure.png" pageId="7" pageNumber="8">Fig. 4</figureCitation>
D). Innermost terminal seta relatively shorter than in female, 0.64 times as long as ramus.
</paragraph>
</subSubSection>
<subSubSection id="C32E654DE946FFD5D593FC5BC107FAA5" lastPageId="8" lastPageNumber="9" pageId="7" pageNumber="8" type="discussion">
<paragraph id="8B8B36C6E946FFDAD593FC5BC609FB29" blockId="7.[151,1437,152,2034]" pageId="7" pageNumber="8">
<emphasis id="B940EAD4E946FFDAD593FC5BC41CFC72" bold="true" box="[198,317,925,951]" pageId="7" pageNumber="8">Remarks.</emphasis>
The specimens examined were assigned to the genus 
<taxonomicName id="4C344D45E946FFDAD6EBFC5BC1E8FC72" authority="Claus, 1893" authorityName="Claus" authorityYear="1893" box="[958,1225,925,951]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="genus">
<emphasis id="B940EAD4E946FFDAD6EBFC5BC115FC73" box="[958,1076,925,950]" italics="true" pageId="7" pageNumber="8">Eucyclops</emphasis>
Claus, 1893
</taxonomicName>
owing to their its possession of the combination of features defined by 
<bibRefCitation id="EFA54B37E946FFDAD7A3FC02C65EFC1B" author="Reid" box="[758,895,964,990]" pageId="7" pageNumber="21" refString="Reid, J. W. (1985) Chave de identificacao e lista de referencias bibliograficas para as especies continentais sulamericanas de vida livre da ordem Cyclopoida (Crustacea, Copepoda). Boletim de Zoologia, Universidade de Sao Paulo, 9, 17 - 143." type="journal article" year="1985">Reid (1985)</bibRefCitation>
and 
<bibRefCitation id="EFA54B37E946FFDAD6E3FC02C1FAFC1B" author="Dussart" box="[950,1243,964,990]" pageId="7" pageNumber="21" refString="Dussart, B. H. &amp; Defaye, D. (2001) Introduction to the Copepoda. 2 nd ed. In: Dumont, H. J. F. (Ed.), Guides to the Identification of the Microinvertebrates of the Continental Waters of the World No. 16. Backhuys Publishers, Leiden, pp. 1 - 289" type="book chapter" year="2001">Dussart &amp; Defaye (2001)</bibRefCitation>
. One of the most useful characters used to separate some of the American species of 
<taxonomicName id="4C344D45E946FFDAD6F0FC2CC13AFBC6" box="[933,1051,1002,1027]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="genus">
<emphasis id="B940EAD4E946FFDAD6F0FC2CC13AFBC6" box="[933,1051,1002,1027]" italics="true" pageId="7" pageNumber="8">Eucyclops</emphasis>
</taxonomicName>
is the length/width proportion of the caudal ramus; it can be long (more than 5.0 times longer than it is wide) as in 
<taxonomicName id="4C344D45E946FFDAD11CFBD7C0B6FBEE" authority="Fischer, 1851" authorityName="Fischer" authorityYear="1851" box="[1097,1431,1041,1067]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="serrulatus">
<emphasis id="B940EAD4E946FFDAD11CFBD7C1FFFBEF" box="[1097,1246,1041,1066]" italics="true" pageId="7" pageNumber="8">E. serrulatus</emphasis>
(Fischer, 1851)
</taxonomicName>
, 
<taxonomicName id="4C344D45E946FFDAD5C2FBFEC4C0FB97" authority="Cragin, 1883" authorityName="Cragin" authorityYear="1883" box="[151,481,1080,1106]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E946FFDAD5C2FBFEC408FB94" box="[151,297,1080,1105]" italics="true" pageId="7" pageNumber="8">E. pectinifer</emphasis>
(Cragin, 1883)
</taxonomicName>
, 
<taxonomicName id="4C344D45E946FFDAD4BBFBFEC601FB97" authority="Herbst, 1959" authorityName="Herbst" authorityYear="1959" box="[494,800,1080,1106]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="solitarius">
<emphasis id="B940EAD4E946FFDAD4BBFBFEC75FFB94" box="[494,638,1080,1105]" italics="true" pageId="7" pageNumber="8">E. solitarius</emphasis>
Herbst, 1959
</taxonomicName>
or 
<taxonomicName id="4C344D45E946FFDAD61DFBFEC1A0FB97" authority="Lindberg, 1955" authorityName="Lindberg" authorityYear="1955" box="[840,1153,1080,1106]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="festivus">
<emphasis id="B940EAD4E946FFDAD61DFBFEC6E0FB94" box="[840,961,1080,1105]" italics="true" pageId="7" pageNumber="8">E. festivus</emphasis>
Lindberg, 1955
</taxonomicName>
, or relatively short, less than 4 times longer than it is wide (i.e., between 
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<taxonomicName id="4C344D45E946FFDAD635FB99C1E0FBBD" authority="Kiefer, 1956" authorityName="Kiefer" authorityYear="1956" box="[864,1217,1118,1144]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="leptacanthus">
<emphasis id="B940EAD4E946FFDAD635FB99C13EFBBD" box="[864,1055,1119,1144]" italics="true" pageId="7" pageNumber="8">E. leptacanthus</emphasis>
Kiefer, 1956
</taxonomicName>
and 
<taxonomicName id="4C344D45E946FFDAD1ABFB99C4BCFB5A" authority="Loffler, 1961" authorityName="Loffler" authorityYear="1961" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="subSpecies" species="serrulatus" subSpecies="chilensis">
<emphasis id="B940EAD4E946FFDAD1ABFB99C5DDFB5B" italics="true" pageId="7" pageNumber="8">E. serrulatus chilensis</emphasis>
<bibRefCitation id="EFA54B37E946FFDAD456FB43C4BCFB5A" author="Loffler" box="[259,413,1157,1183]" pageId="7" pageNumber="21" refString="Loffler, H. (1961) Zur Systematik und Oekologie der chilenischen Susswassentomostraken. Beitrage zur Neotropischen Fauna, 2, 143 - 221." type="journal article" year="1961">Löffler, 1961</bibRefCitation>
</taxonomicName>
, 
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<taxonomicName id="4C344D45E946FFDAD4A6FB43C62DFB5A" authority="Reid, 1992" authorityName="Reid" authorityYear="1992" box="[499,780,1157,1183]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="conrowae">
<emphasis id="B940EAD4E946FFDAD4A6FB43C7A5FB5B" box="[499,644,1157,1182]" italics="true" pageId="7" pageNumber="8">E. conrowae</emphasis>
<bibRefCitation id="EFA54B37E946FFDAD7DEFB43C62DFB5A" author="Reid" box="[651,780,1157,1183]" pageId="7" pageNumber="21" refString="Reid, J. W. (1992) Copepoda (Crustacea) from fresh waters of the Florida Everglades, U. S. A., with a description of Eucyclops conrowae n. sp. Transactions of the American Microscopical Society, 111, 229 - 254." type="journal article" year="1992">Reid, 1992</bibRefCitation>
</taxonomicName>
, 
<quantity id="4CCC9B23E946FFDAD64DFB43C67BFB5A" box="[792,858,1157,1183]" metricMagnitude="-2" metricUnit="m" metricValue="8.128" pageId="7" pageNumber="8" unit="in" value="3.2">3.2 in</quantity>
<taxonomicName id="4C344D45E946FFDAD637FB43C14AFB5A" authority="Kiefer, 1936" authorityName="Kiefer" authorityYear="1936" box="[866,1131,1157,1183]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="ensifer">
<emphasis id="B940EAD4E946FFDAD637FB43C6F1FB5B" box="[866,976,1157,1182]" italics="true" pageId="7" pageNumber="8">E. ensifer</emphasis>
Kiefer, 1936
</taxonomicName>
, or 
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<taxonomicName id="4C344D45E946FFDAD1B2FB43C5F2FB03" authority="Herbst, 1962" authorityName="Herbst" authorityYear="1962" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="siolii">
<emphasis id="B940EAD4E946FFDAD1B2FB43C061FB5B" box="[1255,1344,1157,1182]" italics="true" pageId="7" pageNumber="8">E. siolii</emphasis>
Herbst, 1962
</taxonomicName>
, 
<taxonomicName id="4C344D45E946FFDAD5B5FB6AC71DFB03" authority="Loffler, 1963" authorityName="Loffler" authorityYear="1963" box="[224,572,1196,1222]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="breviramatus">
<emphasis id="B940EAD4E946FFDAD5B5FB6AC4B8FB00" box="[224,409,1196,1221]" italics="true" pageId="7" pageNumber="8">E. breviramatus</emphasis>
Löffler, 1963
</taxonomicName>
, and the Asian 
<taxonomicName id="4C344D45E946FFDAD7A4FB6AC111FB03" authority="Alekseev, 2000" authorityName="Alekseev" authorityYear="2000" box="[753,1072,1196,1222]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="dumonti">
<emphasis id="B940EAD4E946FFDAD7A4FB6AC650FB00" box="[753,881,1196,1221]" italics="true" pageId="7" pageNumber="8">E. dumonti</emphasis>
<bibRefCitation id="EFA54B37E946FFDAD62CFB6AC111FB03" author="Alekseev" box="[889,1072,1196,1222]" pageId="7" pageNumber="20" refString="Alekseev, V. R. (2000) Eucyclops dumonti sp. nov. from Central Mongolia. Hydrobiologia, 441, 63 - 71." type="journal article" year="2000">Alekseev, 2000</bibRefCitation>
</taxonomicName>
). The length ratio of the caudal rami in the new species shows values around 3 (3.1–3.4).
</paragraph>
<paragraph id="8B8B36C6E946FFDAD590FB3FC61EF861" blockId="7.[151,1437,152,2034]" pageId="7" pageNumber="8">
Among the American species that share with the new species these characters (i.e., relatively short caudal rami, outer margin entirely spinulated) are: 
<taxonomicName id="4C344D45E946FFDAD7C6FAE6C6C2FAFF" authority="Kiefer, 1925" authorityName="Kiefer" authorityYear="1925" box="[659,995,1312,1338]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="delachauxi">
<emphasis id="B940EAD4E946FFDAD7C6FAE6C615FAFC" box="[659,820,1312,1337]" italics="true" pageId="7" pageNumber="8">E. delachauxi</emphasis>
(
<bibRefCitation id="EFA54B37E946FFDAD617FAE6C6F8FAFF" author="Kiefer" box="[834,985,1312,1338]" pageId="7" pageNumber="21" refString="Kiefer, F. (1925) Ein neuer Susswasser-Cyclopiden aus Sudamerika: Cyclops delachauxi n. sp. Zoologischer Anzeiger, 63, 46 - 47." type="journal article" year="1925">Kiefer, 1925</bibRefCitation>
)
</taxonomicName>
, 
<taxonomicName id="4C344D45E946FFDAD6BBFAE6C1A1FAFC" box="[1006,1152,1312,1337]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="conrowae">
<emphasis id="B940EAD4E946FFDAD6BBFAE6C1A1FAFC" box="[1006,1152,1312,1337]" italics="true" pageId="7" pageNumber="8">E. conrowae</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C344D45E946FFDAD1DBFAE6C5F4FAA5" authority="Kiefer, 1956" authorityName="Kiefer" authorityYear="1956" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="leptacanthus">
<emphasis id="B940EAD4E946FFDAD1DBFAE6C064FAFC" box="[1166,1349,1312,1337]" italics="true" pageId="7" pageNumber="8">E. leptacanthus</emphasis>
Kiefer, 1956
</taxonomicName>
, 
<taxonomicName id="4C344D45E946FFDAD5B4FA81C470FAA5" box="[225,337,1351,1376]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="ensifer">
<emphasis id="B940EAD4E946FFDAD5B4FA81C470FAA5" box="[225,337,1351,1376]" italics="true" pageId="7" pageNumber="8">E. ensifer</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C344D45E946FFDAD434FA81C4D2FAA5" box="[353,499,1351,1376]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E946FFDAD434FA81C4D2FAA5" box="[353,499,1351,1376]" italics="true" pageId="7" pageNumber="8">E. pectinifer</emphasis>
</taxonomicName>
(sensu 
<bibRefCitation id="EFA54B37E946FFDAD71BFA80C667FAA5" author="Alekseev" box="[590,838,1350,1376]" pageId="7" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter" year="2006">
Alekseev 
<emphasis id="B940EAD4E946FFDAD796FA81C7DEFAA5" box="[707,767,1351,1376]" italics="true" pageId="7" pageNumber="8">et al.</emphasis>
2006
</bibRefCitation>
), 
<taxonomicName id="4C344D45E946FFDAD60EFA81C1EFFAA5" authority="Dussart, 1984" authorityName="Dussart" authorityYear="1984" box="[859,1230,1350,1376]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="pseudoensifer">
<emphasis id="B940EAD4E946FFDAD60EFA81C13EFAA5" box="[859,1055,1351,1376]" italics="true" pageId="7" pageNumber="8">E. pseudoensifer</emphasis>
Dussart, 1984
</taxonomicName>
, 
<taxonomicName id="4C344D45E946FFDAD18EFA81C40CFA42" authority="Kiefer, 1931" authorityName="Kiefer" authorityYear="1931" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="prionophorus">
<emphasis id="B940EAD4E946FFDAD18EFA81C0BDFAA5" box="[1243,1436,1351,1376]" italics="true" pageId="7" pageNumber="8">E. prionophorus</emphasis>
Kiefer, 1931
</taxonomicName>
, 
<taxonomicName id="4C344D45E946FFDAD46FFAABC71DFA42" authority="Kiefer, 1934" authorityName="Kiefer" authorityYear="1934" box="[314,572,1389,1415]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="bondi">
<emphasis id="B940EAD4E946FFDAD46FFAABC4BFFA43" box="[314,414,1389,1414]" italics="true" pageId="7" pageNumber="8">E. bondi</emphasis>
Kiefer, 1934
</taxonomicName>
, 
<taxonomicName id="4C344D45E946FFDAD71CFAABC671FA43" box="[585,848,1389,1414]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="subSpecies" species="serrulatus" subSpecies="chilensis">
<emphasis id="B940EAD4E946FFDAD71CFAABC671FA43" box="[585,848,1389,1414]" italics="true" pageId="7" pageNumber="8">E. serrulatus chilensis</emphasis>
</taxonomicName>
, and 
<taxonomicName id="4C344D45E946FFDAD6C7FAABC043FA42" authority="Suarez-Morales, 2004" authorityName="Suarez-Morales" authorityYear="2004" box="[914,1378,1389,1415]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="torresphilippi">
<emphasis id="B940EAD4E946FFDAD6C7FAABC172FA43" box="[914,1107,1389,1414]" italics="true" pageId="7" pageNumber="8">E. torresphilippi</emphasis>
Suárez-Morales, 2004
</taxonomicName>
. The new species can be distinguished from this group of congeners by evaluating additional characters. In the new species the fifth leg has a relatively short inner spine, as long as the bearing segment (ratio: 1.0). This character diverges from the pattern found in other congeners in which this element is clearly longer than the segment; the comparative length ratios (spine/segment) are: 
<quantity id="4CCC9B23E946FFDAD60CF9CEC68AF9E7" box="[857,939,1544,1570]" metricMagnitude="-2" metricUnit="m" metricValue="3.4798" pageId="7" pageNumber="8" unit="in" value="1.37">1.37 in</quantity>
<taxonomicName id="4C344D45E946FFDAD6E7F9CEC164F9E4" box="[946,1093,1544,1569]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="conrowae">
<emphasis id="B940EAD4E946FFDAD6E7F9CEC164F9E4" box="[946,1093,1544,1569]" italics="true" pageId="7" pageNumber="8">E. conrowae</emphasis>
</taxonomicName>
, 
<quantity id="4CCC9B23E946FFDAD101F9CEC184F9E7" box="[1108,1189,1544,1570]" metricMagnitude="-2" metricUnit="m" metricValue="4.5212" pageId="7" pageNumber="8" unit="in" value="1.78">1.78 in</quantity>
<taxonomicName id="4C344D45E946FFDAD1F9F9CEC03AF9E4" box="[1196,1307,1544,1569]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="ensifer">
<emphasis id="B940EAD4E946FFDAD1F9F9CEC03AF9E4" box="[1196,1307,1544,1569]" italics="true" pageId="7" pageNumber="8">E. ensifer</emphasis>
</taxonomicName>
, 
<quantity id="4CCC9B23E946FFDAD07FF9CEC05DF9E7" box="[1322,1404,1544,1570]" metricMagnitude="-2" metricUnit="m" metricValue="3.2512" pageId="7" pageNumber="8" unit="in" value="1.28">1.28 in</quantity>
<taxonomicName id="4C344D45E946FFDAD0D6F9CEC40CF98D" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="leptacanthus">
<emphasis id="B940EAD4E946FFDAD0D6F9CEC40CF98D" italics="true" pageId="7" pageNumber="8">E. leptacanthus</emphasis>
</taxonomicName>
, 
<quantity id="4CCC9B23E946FFDAD46EF9E8C490F98D" box="[315,433,1582,1608]" metricMagnitude="-2" metricUnit="m" metricValue="3.175" metricValueMax="3.302" metricValueMin="3.048" pageId="7" pageNumber="8" unit="in" value="1.25" valueMax="1.3" valueMin="1.2">1.2–1.3 in</quantity>
<taxonomicName id="4C344D45E946FFDAD4EDF9E9C766F98D" box="[440,583,1583,1608]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E946FFDAD4EDF9E9C766F98D" box="[440,583,1583,1608]" italics="true" pageId="7" pageNumber="8">E. pectinifer</emphasis>
</taxonomicName>
, 
<quantity id="4CCC9B23E946FFDAD703F9E8C7B8F98D" box="[598,665,1582,1608]" metricMagnitude="-2" metricUnit="m" metricValue="6.604" pageId="7" pageNumber="8" unit="in" value="2.6">2.6 in</quantity>
<taxonomicName id="4C344D45E946FFDAD7CAF9E9C641F98D" box="[671,864,1583,1608]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="prionophorus">
<emphasis id="B940EAD4E946FFDAD7CAF9E9C641F98D" box="[671,864,1583,1608]" italics="true" pageId="7" pageNumber="8">E. prionophorus</emphasis>
</taxonomicName>
, 
<quantity id="4CCC9B23E946FFDAD63BF9E8C690F98D" box="[878,945,1582,1608]" metricMagnitude="-1" metricUnit="m" metricValue="1.143" pageId="7" pageNumber="8" unit="in" value="4.5">4.5 in</quantity>
<taxonomicName id="4C344D45E946FFDAD6E2F9E9C158F98D" box="[951,1145,1583,1608]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="pseudoensifer">
<emphasis id="B940EAD4E946FFDAD6E2F9E9C158F98D" box="[951,1145,1583,1608]" italics="true" pageId="7" pageNumber="8">E. pseudoensifer</emphasis>
</taxonomicName>
, 
<quantity id="4CCC9B23E946FFDAD1DDF9E8C1DFF98D" box="[1160,1278,1582,1608]" metricMagnitude="-2" metricUnit="m" metricValue="4.826" metricValueMax="5.334" metricValueMin="4.318" pageId="7" pageNumber="8" unit="in" value="1.9" valueMax="2.1" valueMin="1.7">1.7–2.1 in</quantity>
<taxonomicName id="4C344D45E946FFDAD050F9E9C5DEF9AB" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="subSpecies" species="serrulatus" subSpecies="chilensis">
<emphasis id="B940EAD4E946FFDAD050F9E9C5DEF9AB" italics="true" pageId="7" pageNumber="8">E. serrulatus chilensis</emphasis>
</taxonomicName>
, and 
<quantity id="4CCC9B23E946FFDAD414F993C4B5F9AA" box="[321,404,1621,1647]" metricMagnitude="-2" metricUnit="m" metricValue="3.3274" pageId="7" pageNumber="8" unit="in" value="1.31">1.31 in</quantity>
<taxonomicName id="4C344D45E946FFDAD4C8F993C651F9AA" authority="Suarez-Morales, 2004" authorityName="Suarez-Morales" authorityYear="2004" box="[413,880,1621,1647]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="torresphilippi">
<emphasis id="B940EAD4E946FFDAD4C8F993C743F9AB" box="[413,610,1621,1646]" italics="true" pageId="7" pageNumber="8">E. torresphilippi</emphasis>
Suárez-Morales, 2004
</taxonomicName>
(
<bibRefCitation id="EFA54B37E946FFDAD6D4F993C13FF9AA" author="Loffler" box="[897,1054,1621,1647]" pageId="7" pageNumber="21" refString="Loffler, H. (1961) Zur Systematik und Oekologie der chilenischen Susswassentomostraken. Beitrage zur Neotropischen Fauna, 2, 143 - 221." type="journal article" year="1961">Löffler 1961</bibRefCitation>
; 
<bibRefCitation id="EFA54B37E946FFDAD17EF993C02DF9AA" author="Collado" box="[1067,1292,1621,1647]" pageId="7" pageNumber="21" refString="Collado, C., Defaye, D., Dussart, B. H. &amp; Fernando, C. H. (1984) The freshwater Copepoda (Crustacea) of Costa Rica with notes on some species. Hydrobiologia, 119, 89 - 99." type="journal article" year="1984">
Collado 
<emphasis id="B940EAD4E946FFDAD1C4F993C1ECF9AB" box="[1169,1229,1621,1646]" italics="true" pageId="7" pageNumber="8">et al.</emphasis>
1984
</bibRefCitation>
; 
<bibRefCitation id="EFA54B37E946FFDAD04CF993C0B6F9AA" author="Reid" box="[1305,1431,1621,1647]" pageId="7" pageNumber="21" refString="Reid, J. W. (1985) Chave de identificacao e lista de referencias bibliograficas para as especies continentais sulamericanas de vida livre da ordem Cyclopoida (Crustacea, Copepoda). Boletim de Zoologia, Universidade de Sao Paulo, 9, 17 - 143." type="journal article" year="1985">Reid 1985</bibRefCitation>
, 
<bibRefCitation id="EFA54B37E946FFDAD5C2F9BAC5F4F953" author="Reid" box="[151,213,1660,1686]" pageId="7" pageNumber="21" refString="Reid, J. W. (1992) Copepoda (Crustacea) from fresh waters of the Florida Everglades, U. S. A., with a description of Eucyclops conrowae n. sp. Transactions of the American Microscopical Society, 111, 229 - 254." type="journal article" year="1992">1992</bibRefCitation>
; Suárez-Morales 2004; 
<bibRefCitation id="EFA54B37E946FFDAD4B8F9BAC7C5F953" author="Alekseev" box="[493,740,1660,1686]" pageId="7" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter" year="2006">
Alekseev 
<emphasis id="B940EAD4E946FFDAD737F9BAC7BCF950" box="[610,669,1660,1685]" italics="true" pageId="7" pageNumber="8">et al.</emphasis>
2006
</bibRefCitation>
). Only in one other American species, 
<taxonomicName id="4C344D45E946FFDAD1FBF9BAC028F950" box="[1198,1289,1660,1685]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="siolii">
<emphasis id="B940EAD4E946FFDAD1FBF9BAC028F950" box="[1198,1289,1660,1685]" italics="true" pageId="7" pageNumber="8">E. siolii</emphasis>
</taxonomicName>
, is the inner spine is smaller than the fifth leg segment (
<bibRefCitation id="EFA54B37E946FFDAD7C2F964C639F979" author="Reid" box="[663,792,1698,1724]" pageId="7" pageNumber="21" refString="Reid, J. W. (1985) Chave de identificacao e lista de referencias bibliograficas para as especies continentais sulamericanas de vida livre da ordem Cyclopoida (Crustacea, Copepoda). Boletim de Zoologia, Universidade de Sao Paulo, 9, 17 - 143." type="journal article" year="1985">Reid 1985</bibRefCitation>
). This character should be explored further in some of these species, particularly in those showing polymorphism such as 
<taxonomicName id="4C344D45E946FFDAD690F90FC140F927" box="[965,1121,1737,1762]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="serrulatus">
<emphasis id="B940EAD4E946FFDAD690F90FC140F927" box="[965,1121,1737,1762]" italics="true" pageId="7" pageNumber="8">E. serrulatus</emphasis>
</taxonomicName>
and 
<taxonomicName id="4C344D45E946FFDAD1C8F90FC042F927" box="[1181,1379,1737,1762]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="prionophorus">
<emphasis id="B940EAD4E946FFDAD1C8F90FC042F927" box="[1181,1379,1737,1762]" italics="true" pageId="7" pageNumber="8">E. prionophorus</emphasis>
</taxonomicName>
(see 
<bibRefCitation id="EFA54B37E946FFDAD5C2F936C4B2F8CF" author="Alekseev" box="[151,403,1776,1802]" pageId="7" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter" year="2006">
Alekseev 
<emphasis id="B940EAD4E946FFDAD458F936C46BF8CC" box="[269,330,1776,1801]" italics="true" pageId="7" pageNumber="8">et al.</emphasis>
2006
</bibRefCitation>
). Conversely, the proportion of the outer and middle setae seems to be generally more stable in these species (see 
<bibRefCitation id="EFA54B37E946FFDAD4B6F8D0C7FEF8F5" author="Alekseev" box="[483,735,1814,1840]" pageId="7" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter" year="2006">
Alekseev 
<emphasis id="B940EAD4E946FFDAD70EF8D1C7B9F8F5" box="[603,664,1815,1840]" italics="true" pageId="7" pageNumber="8">et al.</emphasis>
2006
</bibRefCitation>
, figs 6.1–7). In the new species these setae have the same length, thus diverging from most of these other congeners in which one of these setae is noticeably longer than the other, except for 
<taxonomicName id="4C344D45E946FFDAD4C7F8A2C727F8B8" box="[402,518,1892,1917]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="ensifer">
<emphasis id="B940EAD4E946FFDAD4C7F8A2C727F8B8" box="[402,518,1892,1917]" italics="true" pageId="7" pageNumber="8">E. ensifer</emphasis>
</taxonomicName>
; however, in this species the inner spine is thick, dagger-like, thus differing from the slender, slightly curved spine of the new species.
</paragraph>
<paragraph id="8B8B36C6E946FFDAD590F877C0BAF834" blockId="7.[151,1437,152,2034]" pageId="7" pageNumber="8">
Overall, the new species shows the closest resemblance with 
<taxonomicName id="4C344D45E946FFDAD6F1F877C116F80F" box="[932,1079,1969,1994]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E946FFDAD6F1F877C116F80F" box="[932,1079,1969,1994]" italics="true" pageId="7" pageNumber="8">E. pectinifer</emphasis>
</taxonomicName>
(sensu 
<bibRefCitation id="EFA54B37E946FFDAD1C1F877C0AEF80E" author="Alekseev" box="[1172,1423,1969,1995]" pageId="7" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter" year="2006">
Alekseev 
<emphasis id="B940EAD4E946FFDAD05FF877C066F80F" box="[1290,1351,1969,1994]" italics="true" pageId="7" pageNumber="8">et al.</emphasis>
2006
</bibRefCitation>
), but there are a number of important differences between the two species. 
<taxonomicName id="4C344D45E946FFDAD154F81EC014F834" box="[1025,1333,2008,2033]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E946FFDAD154F81EC014F834" box="[1025,1333,2008,2033]" italics="true" pageId="7" pageNumber="8">Eucyclops cuatrocienegas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE946FFDAD068F811C0BAF834" box="[1341,1435,2007,2033]" pageId="7" pageNumber="8" rank="species">
<emphasis id="B940EAD4E946FFDAD068F811C0BAF834" bold="true" box="[1341,1435,2007,2033]" pageId="7" pageNumber="8">sp. nov.</emphasis>
</taxonomicNameLabel>
</paragraph>
<paragraph id="8B8B36C6E949FFD5D5C2FF5EC6DAFC86" blockId="8.[151,1437,152,2034]" pageId="8" pageNumber="9">
can be easily distinguished from 
<taxonomicName id="4C344D45E949FFD5D742FF5EC786FF74" box="[535,679,152,177]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D742FF5EC786FF74" box="[535,679,152,177]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
mainly by the proportion of the caudal rami; in the latter species the length/width proportion is consistently around 5 (
<bibRefCitation id="EFA54B37E949FFD5D644FF78C6B3FF1D" author="Reid" box="[785,914,190,216]" pageId="8" pageNumber="21" refString="Reid, J. W. (1992) Copepoda (Crustacea) from fresh waters of the Florida Everglades, U. S. A., with a description of Eucyclops conrowae n. sp. Transactions of the American Microscopical Society, 111, 229 - 254." type="journal article" year="1992">Reid 1992</bibRefCitation>
; 
<bibRefCitation id="EFA54B37E949FFD5D6CBFF78C1B8FF1D" author="Alekseev" box="[926,1177,190,216]" pageId="8" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter" year="2006">
Alekseev 
<emphasis id="B940EAD4E949FFD5D140FF79C170FF1D" box="[1045,1105,191,216]" italics="true" pageId="8" pageNumber="9">et al.</emphasis>
2006
</bibRefCitation>
), whereas it is clearly shorter in the new species (consistently less than 3.6). The dorsal seta is distinctly shorter in the new species, 0.36 times as long as ramus, vs 
<quantity id="4CCC9B23E949FFD5D747FECAC777FEE3" box="[530,598,268,294]" metricMagnitude="-2" metricUnit="m" metricValue="1.27" pageId="8" pageNumber="9" unit="in" value="0.5">0.5 in</quantity>
<taxonomicName id="4C344D45E949FFD5D70BFECAC7CEFEE0" box="[606,751,268,293]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D70BFECAC7CEFEE0" box="[606,751,268,293]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
. The inner caudal seta is 0.5 times as long as ramus in 
<taxonomicName id="4C344D45E949FFD5D0D6FECAC426FE8E" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D0D6FECAC426FE8E" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
vs. a relatively longer seta (0.82) in the new species. Other differences include shorter antennules in the new species, reaching only halfway of the second pedigerous somite, whereas in 
<taxonomicName id="4C344D45E949FFD5D1D2FE9FC038FEB7" box="[1159,1305,345,370]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D1D2FE9FC038FEB7" box="[1159,1305,345,370]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
they reach beyond the third pedigerous somite (see 
<bibRefCitation id="EFA54B37E949FFD5D7DEFE46C6ACFE5F" author="Alekseev" box="[651,909,384,410]" pageId="8" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter" year="2006">
Alekseev 
<emphasis id="B940EAD4E949FFD5D651FE46C663FE5C" box="[772,834,384,409]" italics="true" pageId="8" pageNumber="9">et al.</emphasis>
2006
</bibRefCitation>
). The taxonomic value of the structure and ornamentation of the mouthparts has not been fully explored in the genus but some of the most complete, detailed descriptions allow a comparative analysis of some characters related to these appendages. The ornamentation of the antennular basis has been used as valuable discriminating characters in other genera (see 
<bibRefCitation id="EFA54B37E949FFD5D5C2FDDCC470FDF1" author="Holynska" box="[151,337,538,564]" pageId="8" pageNumber="21" refString="Holynska, M. (2006) Phylogeny of Mesocyclops (Copepoda: Cyclopidae) inferred from morphological characters. Zoological Journal of the Linnean Society, 147, 1 - 70" type="journal article" year="2006">Holynska 2006</bibRefCitation>
), and 
<bibRefCitation id="EFA54B37E949FFD5D4CFFDDCC787FDF1" box="[410,678,538,564]" pageId="8" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter">
Alekseev 
<emphasis id="B940EAD4E949FFD5D747FDDCC76FFDF6" box="[530,590,538,563]" italics="true" pageId="8" pageNumber="9">et al.</emphasis>
(2006)
</bibRefCitation>
provided guidelines to evaluate these patterns in 
<taxonomicName id="4C344D45E949FFD5D1A9FDDCC056FDF6" box="[1276,1399,538,563]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">
<emphasis id="B940EAD4E949FFD5D1A9FDDCC056FDF6" box="[1276,1399,538,563]" italics="true" pageId="8" pageNumber="9">Eucyclops</emphasis>
</taxonomicName>
. A comparison of the characters of the mouthparts showed additional differences of 
<taxonomicName id="4C344D45E949FFD5D1D4FD87C07FFD9F" box="[1153,1374,577,602]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="cuatrocienegas">
<emphasis id="B940EAD4E949FFD5D1D4FD87C07FFD9F" box="[1153,1374,577,602]" italics="true" pageId="8" pageNumber="9">E. cuatrocienegas</emphasis>
</taxonomicName>
with respect to 
<taxonomicName id="4C344D45E949FFD5D45AFDAEC4BEFD44" box="[271,415,616,641]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D45AFDAEC4BEFD44" box="[271,415,616,641]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
, including: 1) a weaker antennal ornamentation in 
<taxonomicName id="4C344D45E949FFD5D6A1FDAEC1E6FD44" box="[1012,1223,616,641]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E949FFD5D6A1FDAEC1E6FD44" box="[1012,1223,616,641]" italics="true" pageId="8" pageNumber="9">E. cuatrocienegas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE949FFD5D198FDA1C00AFD44" box="[1229,1323,615,641]" pageId="8" pageNumber="9" rank="species">
<emphasis id="B940EAD4E949FFD5D198FDA1C00AFD44" bold="true" box="[1229,1323,615,641]" pageId="8" pageNumber="9">sp. nov.</emphasis>
</taxonomicNameLabel>
; 2) in the new species the maxilliped has a stronger ornamentation on the basipod and on the first endopodal segment. In 
<taxonomicName id="4C344D45E949FFD5D5E2FD73C468FD0B" box="[183,329,693,718]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D5E2FD73C468FD0B" box="[183,329,693,718]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
the spinulation pattern of the coxal plate of leg 4 includes three rows of stout spines, whereas the pattern is reduced in 
<taxonomicName id="4C344D45E949FFD5D4EAFD1AC7B5FD30" box="[447,660,732,757]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="cuatrocienegas">
<emphasis id="B940EAD4E949FFD5D4EAFD1AC7B5FD30" box="[447,660,732,757]" italics="true" pageId="8" pageNumber="9">E. cuatrocienegas</emphasis>
</taxonomicName>
, with only two rows of tiny spinules. In the new species the first coxal plate has a heavy ornamentation, with two frontal rows of slender spines and one distal row of spinules; the plate is smooth in 
<taxonomicName id="4C344D45E949FFD5D4CCFCEFC708FC87" box="[409,553,809,834]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D4CCFCEFC708FC87" box="[409,553,809,834]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
(
<bibRefCitation id="EFA54B37E949FFD5D76CFCEFC606FC86" author="Alekseev" box="[569,807,809,835]" pageId="8" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter" year="2006">
Alekseev 
<emphasis id="B940EAD4E949FFD5D7FAFCEFC7CBFC87" box="[687,746,809,834]" italics="true" pageId="8" pageNumber="9">et al.</emphasis>
2006
</bibRefCitation>
, figs 17.14, 18.5).
</paragraph>
<paragraph id="8B8B36C6E949FFD5D590FC96C155FBBD" blockId="8.[151,1437,152,2034]" pageId="8" pageNumber="9">
The relative lengths and ornamentation of the distal spines of leg 4 endopodite are useful to separate some species of 
<taxonomicName id="4C344D45E949FFD5D441FCB1C4ACFC55" box="[276,397,887,912]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">
<emphasis id="B940EAD4E949FFD5D441FCB1C4ACFC55" box="[276,397,887,912]" italics="true" pageId="8" pageNumber="9">Eucyclops</emphasis>
</taxonomicName>
(
<bibRefCitation id="EFA54B37E949FFD5D4C9FCB0C7A0FC55" author="Reid" box="[412,641,886,912]" pageId="8" pageNumber="21" refString="Reid, J. W. (1985) Chave de identificacao e lista de referencias bibliograficas para as especies continentais sulamericanas de vida livre da ordem Cyclopoida (Crustacea, Copepoda). Boletim de Zoologia, Universidade de Sao Paulo, 9, 17 - 143." type="journal article" year="1985">
Reid 1985, 
<tableCitation id="C6B6037DE949FFD5D77DFCB0C7A0FC55" box="[552,641,886,912]" captionStart="TABLE 2" captionStartId="9.[151,240,495,519]" captionTargetBox="[151,1436,685,1321]" captionTargetPageId="9" captionText="TABLE 2. Comparison of selected morphometric characters of adult females of some American species of Eucyclops Claus, 1893, including E. cuatrocienegas sp. nov. and E. chihuahuensis sp. nov. CR = caudal ramus; P 4 end 3 = fourth leg endopod, third segment; I = inner terminal spine of P 4 end 3; O = outer terminal spine of P 4 end 3; IS = spine of fifth legs; OS = outer seta of fifth legs; SC = Coverage of serra on external margin of caudal rami. Data from Kiefer (1925), Reid (1985, 1992), Grimaldo-Ortega et al. (1998), Dussart &amp; Defaye (2001), and Suárez-Morales (2004)." httpUri="http://table.plazi.org/id/DF4B664EE948FFD4D5C2FE29C19DFD54" pageId="8" pageNumber="9" tableUuid="DF4B664EE948FFD4D5C2FE29C19DFD54">Table 2</tableCitation>
</bibRefCitation>
). In the new species, the inner/outer spine length ratio is 0.64–0.66 vs. a 0.60 ratio in 
<taxonomicName id="4C344D45E949FFD5D428FC5BC738FC73" box="[381,537,925,950]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D428FC5BC738FC73" box="[381,537,925,950]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
(see 
<bibRefCitation id="EFA54B37E949FFD5D708FC5BC645FC72" author="Alekseev" box="[605,868,925,951]" pageId="8" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter" year="2006">
Alekseev 
<emphasis id="B940EAD4E949FFD5D78FFC5BC638FC73" box="[730,793,925,950]" italics="true" pageId="8" pageNumber="9">et al.</emphasis>
2006
</bibRefCitation>
, fig. 18.7). In 
<taxonomicName id="4C344D45E949FFD5D14FFC5BC197FC73" box="[1050,1206,925,950]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D14FFC5BC197FC73" box="[1050,1206,925,950]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
both elements are bipinnate, whereas the inner margin of the inner spine is smooth in 
<taxonomicName id="4C344D45E949FFD5D6E1FC02C1A6FC18" box="[948,1159,964,989]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E949FFD5D6E1FC02C1A6FC18" box="[948,1159,964,989]" italics="true" pageId="8" pageNumber="9">E. cuatrocienegas</emphasis>
</taxonomicName>
<emphasis id="B940EAD4E949FFD5D1DBFC05C1CCFC18" bold="true" box="[1166,1261,963,989]" pageId="8" pageNumber="9">
<taxonomicNameLabel id="A27357AFE949FFD5D1DBFC05C1CCFC18" box="[1166,1261,963,989]" pageId="8" pageNumber="9" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
This character is present in other American species of the genus, such as 
<taxonomicName id="4C344D45E949FFD5D631FC2CC6DBFBC6" box="[868,1018,1002,1027]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="solitarius">
<emphasis id="B940EAD4E949FFD5D631FC2CC6DBFBC6" box="[868,1018,1002,1027]" italics="true" pageId="8" pageNumber="9">E. solitarius</emphasis>
</taxonomicName>
, 
<taxonomicName id="4C344D45E949FFD5D15FFC2CC193FBC6" box="[1034,1202,1002,1027]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="delachauxi">
<emphasis id="B940EAD4E949FFD5D15FFC2CC193FBC6" box="[1034,1202,1002,1027]" italics="true" pageId="8" pageNumber="9">E. delachauxi</emphasis>
</taxonomicName>
, and 
<taxonomicName id="4C344D45E949FFD5D1A3FC2CC46FFBEE" authority="Lindberg, 1907" authorityName="Lindberg" authorityYear="1907" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="demacedoi">
<emphasis id="B940EAD4E949FFD5D1A3FC2CC0BDFBC6" box="[1270,1436,1002,1027]" italics="true" pageId="8" pageNumber="9">E. demacedoi</emphasis>
Lindberg, 1907
</taxonomicName>
, all known only from South 
<collectingCountry id="F3237656E949FFD5D7CBFBD7C622FBEE" box="[670,771,1041,1067]" name="United States of America" pageId="8" pageNumber="9">America</collectingCountry>
(see 
<bibRefCitation id="EFA54B37E949FFD5D614FBD7C69EFBEE" author="Reid" box="[833,959,1041,1067]" pageId="8" pageNumber="21" refString="Reid, J. W. (1985) Chave de identificacao e lista de referencias bibliograficas para as especies continentais sulamericanas de vida livre da ordem Cyclopoida (Crustacea, Copepoda). Boletim de Zoologia, Universidade de Sao Paulo, 9, 17 - 143." type="journal article" year="1985">Reid 1985</bibRefCitation>
). Also, in 
<taxonomicName id="4C344D45E949FFD5D16DFBD7C02AFBEF" box="[1080,1291,1041,1066]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E949FFD5D16DFBD7C02AFBEF" box="[1080,1291,1041,1066]" italics="true" pageId="8" pageNumber="9">E. cuatrocienegas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE949FFD5D046FBD6C051FBEF" box="[1299,1392,1040,1066]" pageId="8" pageNumber="9" rank="species">
<emphasis id="B940EAD4E949FFD5D046FBD6C051FBEF" bold="true" box="[1299,1392,1040,1066]" pageId="8" pageNumber="9">sp. nov.</emphasis>
</taxonomicNameLabel>
the insertion point of the outer seta of the third endopodal segment of leg 4 is at midlength (57%) of the segment vs. a more distal position in 
<taxonomicName id="4C344D45E949FFD5D4B7FB99C752FBBD" box="[482,627,1119,1144]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D4B7FB99C752FBBD" box="[482,627,1119,1144]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
(74%) (see 
<bibRefCitation id="EFA54B37E949FFD5D654FB98C6D4FBBD" author="Alekseev" box="[769,1013,1118,1144]" pageId="8" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter" year="2006">
Alekseev 
<emphasis id="B940EAD4E949FFD5D620FB99C691FBBD" box="[885,944,1119,1144]" italics="true" pageId="8" pageNumber="9">et al.</emphasis>
2006
</bibRefCitation>
, fig. 18.8).
</paragraph>
<paragraph id="8B8B36C6E949FFD5D590FB43C107FAA5" blockId="8.[151,1437,152,2034]" pageId="8" pageNumber="9">
The medial spine of leg 6 of the male of 
<taxonomicName id="4C344D45E949FFD5D7E0FB43C66AFB5B" box="[693,843,1157,1182]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D7E0FB43C66AFB5B" box="[693,843,1157,1182]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
reaches beyond the proximal margin of the third urosomite (
<bibRefCitation id="EFA54B37E949FFD5D471FB6AC70DFB03" author="Alekseev" box="[292,556,1196,1222]" pageId="8" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter" year="2006">
Alekseev 
<emphasis id="B940EAD4E949FFD5D4F7FB6AC4C3FB00" box="[418,482,1196,1221]" italics="true" pageId="8" pageNumber="9">et al.</emphasis>
2006
</bibRefCitation>
, fig. 17.11), whereas in the new species this element is shorter, barely reaching the posterior margin of the second urosomite. The male caudal rami of 
<taxonomicName id="4C344D45E949FFD5D134FB15C1D4FB29" box="[1121,1269,1235,1260]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D134FB15C1D4FB29" box="[1121,1269,1235,1260]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
are relatively shorter than in the female (length/width ratio= 3.9); the same is true in the new species (l/w ratio=2.7). The innermost terminal caudal seta is clearly shorter in 
<taxonomicName id="4C344D45E949FFD5D7B9FAE6C69FFAFC" box="[748,958,1312,1337]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E949FFD5D7B9FAE6C69FFAFC" box="[748,958,1312,1337]" italics="true" pageId="8" pageNumber="9">E. cuatrocienegas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE949FFD5D690FAD9C103FAFC" box="[965,1058,1311,1337]" pageId="8" pageNumber="9" rank="species">
<emphasis id="B940EAD4E949FFD5D690FAD9C103FAFC" bold="true" box="[965,1058,1311,1337]" pageId="8" pageNumber="9">sp. nov.</emphasis>
</taxonomicNameLabel>
than in 
<taxonomicName id="4C344D45E949FFD5D1D4FAE6C030FAFC" box="[1153,1297,1312,1337]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D1D4FAE6C030FAFC" box="[1153,1297,1312,1337]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
(0.64 times as long as ramus vs 1.0 in 
<taxonomicName id="4C344D45E949FFD5D499FA81C77CFAA5" box="[460,605,1351,1376]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D499FA81C77CFAA5" box="[460,605,1351,1376]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
) (see 
<bibRefCitation id="EFA54B37E949FFD5D7F1FA80C6B9FAA5" author="Alekseev" box="[676,920,1350,1376]" pageId="8" pageNumber="20" refString="Alekseev, V. R., Dumont, H. J., Pensaert, J. &amp; Baribwegure, D. (2006) A redescription of Eucyclops serrulatus (Fischer, 1851) (Crustacea: Copepoda: Cyclopoida) and some related taxa, with a phylogeny of the E. serrulatus group." type="book chapter" year="2006">
Alekseev 
<emphasis id="B940EAD4E949FFD5D64CFA81C675FAA5" box="[793,852,1351,1376]" italics="true" pageId="8" pageNumber="9">et al.</emphasis>
2006
</bibRefCitation>
, fig. 17.10).
</paragraph>
</subSubSection>
<subSubSection id="C32E654DE949FFD4D590FAABC18EFE05" lastPageId="9" lastPageNumber="10" pageId="8" pageNumber="9" type="reference_group">
<paragraph id="8B8B36C6E949FFD4D590FAABC18EFE05" blockId="8.[151,1437,152,2034]" lastBlockId="9.[151,1437,152,448]" lastPageId="9" lastPageNumber="10" pageId="8" pageNumber="9">
<taxonomicName id="4C344D45E949FFD5D590FAABC498FA43" box="[197,441,1389,1414]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="conrowae">
<emphasis id="B940EAD4E949FFD5D590FAABC498FA43" box="[197,441,1389,1414]" italics="true" pageId="8" pageNumber="9">Eucyclops conrowae</emphasis>
</taxonomicName>
is another American species that has morphologic resemblance to 
<taxonomicName id="4C344D45E949FFD5D187FAABC044FA43" box="[1234,1381,1389,1414]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="pectinifer">
<emphasis id="B940EAD4E949FFD5D187FAABC044FA43" box="[1234,1381,1389,1414]" italics="true" pageId="8" pageNumber="9">E. pectinifer</emphasis>
</taxonomicName>
(see 
<bibRefCitation id="EFA54B37E949FFD5D5C2FA52C432FA6B" author="Reid" box="[151,275,1428,1454]" pageId="8" pageNumber="21" refString="Reid, J. W. (1992) Copepoda (Crustacea) from fresh waters of the Florida Everglades, U. S. A., with a description of Eucyclops conrowae n. sp. Transactions of the American Microscopical Society, 111, 229 - 254." type="journal article" year="1992">Reid 1992</bibRefCitation>
) and has some affinities with the new species too, mainly in having a relatively short caudal rami (length/width ratio=3.5); however it differs from 
<taxonomicName id="4C344D45E949FFD5D7B9FA7DC6E5FA11" box="[748,964,1467,1492]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E949FFD5D7B9FA7DC6E5FA11" box="[748,964,1467,1492]" italics="true" pageId="8" pageNumber="9">E. cuatrocienegas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE949FFD5D698FA7CC10FFA11" box="[973,1070,1466,1492]" pageId="8" pageNumber="9" rank="species">
<emphasis id="B940EAD4E949FFD5D698FA7CC10FFA11" bold="true" box="[973,1070,1466,1492]" pageId="8" pageNumber="9">sp. nov.</emphasis>
</taxonomicNameLabel>
in some important characters. 
<taxonomicName id="4C344D45E949FFD5D5C2FA27C4AAFA3F" box="[151,395,1505,1530]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="conrowae">
<emphasis id="B940EAD4E949FFD5D5C2FA27C4AAFA3F" box="[151,395,1505,1530]" italics="true" pageId="8" pageNumber="9">Eucyclops conrowae</emphasis>
</taxonomicName>
has 1) relatively longer antenules, reaching posterior margin of pediger 2; 2) modified, sclerotized blunt setae on third endopodal segment of leg 4; 3) both terminal spines of leg 4 endopod are spinulate on both margins; 4) the inner spine of the fifth leg is clearly longer than the segment; 5) a set of lateralmost terminal caudal setae carried nearly at right angle to ramus; 6) dorsal seta 0.7 times as long as ramus; 7) anal somite relatively short, 0.35 times as long as caudal ramus; 8) medial spine of male leg 6 reaching beyond posterior margin of third urosomite. These characters are absent from or different in 
<taxonomicName id="4C344D45E949FFD5D0D7F965C473F927" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="cuatrocienegas" status="sp. nov.">
<emphasis id="B940EAD4E949FFD5D0D7F965C473F927" italics="true" pageId="8" pageNumber="9">E. cuatrocienegas</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27357AFE949FFD5D40EF90EC49CF927" box="[347,445,1736,1762]" pageId="8" pageNumber="9" rank="species">
<emphasis id="B940EAD4E949FFD5D40EF90EC49CF927" bold="true" box="[347,445,1736,1762]" pageId="8" pageNumber="9">sp. nov.</emphasis>
</taxonomicNameLabel>
Another American form that has some resemblance with the new species is the Chilean subspecies 
<taxonomicName id="4C344D45E949FFD5D4D3F936C683F8CF" authority="Loffler, 1961" authorityName="Loffler" authorityYear="1961" box="[390,930,1776,1802]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="subSpecies" species="serrulatus" subSpecies="chilensis">
<emphasis id="B940EAD4E949FFD5D4D3F936C7D7F8CC" box="[390,758,1776,1801]" italics="true" pageId="8" pageNumber="9">Eucyclops serrulatus chilensis</emphasis>
<bibRefCitation id="EFA54B37E949FFD5D7ABF936C683F8CF" author="Loffler" box="[766,930,1776,1802]" pageId="8" pageNumber="21" refString="Loffler, H. (1961) Zur Systematik und Oekologie der chilenischen Susswassentomostraken. Beitrage zur Neotropischen Fauna, 2, 143 - 221." type="journal article" year="1961">Löffler, 1961</bibRefCitation>
</taxonomicName>
; both share several characters including a short dorsal seta, anal somite with spines along distal margin, a complete serra on the caudal rami, the outer and middle setae of the fifth leg are equally long, and the fourth leg has the same general structure (see 
<bibRefCitation id="EFA54B37E949FFD5D01FF8FBC5F8F8BB" author="Loffler" pageId="8" pageNumber="21" refString="Loffler, H. (1961) Zur Systematik und Oekologie der chilenischen Susswassentomostraken. Beitrage zur Neotropischen Fauna, 2, 143 - 221." type="journal article" year="1961">Löffler 1961</bibRefCitation>
). Aside those mentioned before, the new species diverges in several other taxonomically relevant characters in 
<taxonomicName id="4C344D45E949FFD5D415F84DC4E1F861" box="[320,448,1931,1956]" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">
<emphasis id="B940EAD4E949FFD5D415F84DC4E1F861" box="[320,448,1931,1956]" italics="true" pageId="8" pageNumber="9">Eucyclops</emphasis>
</taxonomicName>
, including a shorter caudal rami (length/width ratio= 3.1–3.4, vs 
<quantity id="4CCC9B23E949FFD5D1AFF84CC059F861" box="[1274,1400,1930,1956]" metricMagnitude="-2" metricUnit="m" metricValue="9.906" metricValueMax="10.414" metricValueMin="9.398" pageId="8" pageNumber="9" unit="in" value="3.9" valueMax="4.1" valueMin="3.7">3.7–4.1 in</quantity>
<taxonomicName id="4C344D45E949FFD5D0D7F84DC4AEF80F" class="Maxillopoda" family="Cyclopidae" genus="Eucyclops" kingdom="Animalia" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="subSpecies" species="serrulatus" subSpecies="chilensis">
<emphasis id="B940EAD4E949FFD5D0D7F84DC4AEF80F" italics="true" pageId="8" pageNumber="9">E. serrulatus chilensis</emphasis>
</taxonomicName>
, although some specimens reported by Löffler have a ratio close to 3.5; however, additional specimens from the Patagonic region show a consistent range between 3.72 and 3.77 (Menu Marque in litt.). There is also a different proportion of inner/outer spines of leg 4 third endopodal segment (
<quantity id="4CCC9B23E948FFD4D5CAFF78C415FF1D" box="[159,308,190,216]" metricMagnitude="-2" metricUnit="m" metricValue="3.8608" metricValueMax="3.9116" metricValueMin="3.81" pageId="9" pageNumber="10" unit="in" value="1.52" valueMax="1.54" valueMin="1.5">1.50–1.54 in</quantity>
the new species vs. 
<quantity id="4CCC9B23E948FFD4D775FF78C7B4FF1D" box="[544,661,190,216]" metricMagnitude="-2" metricUnit="m" metricValue="3.3019999999999996" metricValueMax="3.5559999999999996" metricValueMin="3.048" pageId="9" pageNumber="10" unit="in" value="1.2999999999999998" valueMax="1.4" valueMin="1.2">1.2–1.4 in</quantity>
the subspecies 
<emphasis id="B940EAD4E948FFD4D61FFF79C690FF1D" box="[842,945,191,216]" italics="true" pageId="9" pageNumber="10">chilensis</emphasis>
) (
<bibRefCitation id="EFA54B37E948FFD4D69CFF78C042FF1D" author="Loffler" box="[969,1379,190,216]" pageId="9" pageNumber="21" refString="Loffler, H. (1961) Zur Systematik und Oekologie der chilenischen Susswassentomostraken. Beitrage zur Neotropischen Fauna, 2, 143 - 221." type="journal article" year="1961">Löffler 1961; Menu Marque in litt.</bibRefCitation>
), the distal ornamentation of the coxal plate of leg 4 (row of short spinules in the new species vs. single distal row of long hair-like elements in the form 
<emphasis id="B940EAD4E948FFD4D706FECAC798FEE0" box="[595,697,268,293]" italics="true" pageId="9" pageNumber="10">chilensis</emphasis>
) (
<bibRefCitation id="EFA54B37E948FFD4D787FECAC14FFEE3" author="Loffler" box="[722,1134,268,294]" pageId="9" pageNumber="21" refString="Loffler, H. (1961) Zur Systematik und Oekologie der chilenischen Susswassentomostraken. Beitrage zur Neotropischen Fauna, 2, 143 - 221." type="journal article" year="1961">Löffler 1961; Menu Marque in litt.</bibRefCitation>
), the dorsal seta is clearly shorter in the new species (0.35 times as long as ramus) than in the form 
<emphasis id="B940EAD4E948FFD4D15EFEF4C152FE8E" box="[1035,1139,306,331]" italics="true" pageId="9" pageNumber="10">chilensis</emphasis>
(0.52–0.65) (see 
<bibRefCitation id="EFA54B37E948FFD4D01DFEF4C5F5FEB6" author="Loffler" pageId="9" pageNumber="21" refString="Loffler, H. (1961) Zur Systematik und Oekologie der chilenischen Susswassentomostraken. Beitrage zur Neotropischen Fauna, 2, 143 - 221." type="journal article" year="1961">Löffler 1961</bibRefCitation>
, figs 77, 81, 84). Further, one of the main characters of the new species is the short spine of the fifth leg, which is as long as the segment; in the subspecies 
<emphasis id="B940EAD4E948FFD4D7BAFE46C677FE5C" box="[751,854,384,409]" italics="true" pageId="9" pageNumber="10">chilensis</emphasis>
this spine is consistently almost twice as long as the segment in different populations (see 
<bibRefCitation id="EFA54B37E948FFD4D72EFE60C633FE05" author="Loffler" box="[635,786,422,448]" pageId="9" pageNumber="21" refString="Loffler, H. (1961) Zur Systematik und Oekologie der chilenischen Susswassentomostraken. Beitrage zur Neotropischen Fauna, 2, 143 - 221." type="journal article" year="1961">Löffler 1961</bibRefCitation>
, figs 78, 82, Menu Marque in litt.).
</paragraph>
</subSubSection>
</treatment>
</document>