584 lines
54 KiB
XML
584 lines
54 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.970.55035" ID-GBIF-Dataset="63875048-50d7-416a-a204-8d94e855c112" ID-PMC="PMC7522114" ID-Pensoft-Pub="1313-2970-970-1" ID-Pensoft-UUID="D2706AF294EF54F682602D4A031CDED9" ID-PubMed="33024408" ID-ZooBank="134B154EFDBD49A191627E7A0230EA9C" ModsDocID="1313-2970-970-1" checkinTime="1600732288851" checkinUser="pensoft" docAuthor="Jung, Tae Won, Kim, Jong Guk, Kim, Min-Seop & Yoon, Seong Myeong" docDate="2020" docId="ED9C198DD7195A26B5563158F6A50E85" docLanguage="en" docName="ZooKeys 970: 1-50" docOrigin="ZooKeys 970" docSource="http://dx.doi.org/10.3897/zookeys.970.55035" docTitle="Pseudocrangonyx concavus Jung & Kim & Kim & Yoon 2020, sp. nov." docType="treatment" docUuid="C27927BA-4CC7-46B2-8875-42A550E18543" docUuidSource="ZooBank" docVersion="4" id="D2706AF294EF54F682602D4A031CDED9" lastPageNumber="1" masterDocId="D2706AF294EF54F682602D4A031CDED9" masterDocTitle="Five new subterranean amphipods of the genus Pseudocrangonyx from Korea (Crustacea, Amphipoda, Pseudocrangonyctidae)" masterLastPageNumber="50" masterPageNumber="1" pageNumber="1" updateTime="1668169506655" updateUser="ExternalLinkService">
|
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Five new subterranean amphipods of the genus Pseudocrangonyx from Korea (Crustacea, Amphipoda, Pseudocrangonyctidae)</mods:title>
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</mods:titleInfo>
|
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<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Jung, Tae Won</mods:namePart>
|
||
<mods:affiliation>National Institute of Ecology, Yeongyang 36531, South Korea</mods:affiliation>
|
||
<mods:nameIdentifier type="orcid">https://orcid.org/0000-0002-4879-5346</mods:nameIdentifier>
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||
<mods:nameIdentifier type="email">twjung79@gmail.com</mods:nameIdentifier>
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||
</mods:name>
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||
<mods:name type="personal">
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||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Kim, Jong Guk</mods:namePart>
|
||
<mods:affiliation>Korea Institute of Ocean Science & Technology, Busan 49111, South Korea</mods:affiliation>
|
||
<mods:nameIdentifier type="orcid">https://orcid.org/0000-0001-5299-9838</mods:nameIdentifier>
|
||
</mods:name>
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||
<mods:name type="personal">
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<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Kim, Min-Seop</mods:namePart>
|
||
<mods:affiliation>National Marine Biodiversity Institute of Korea, Seocheon 33662, South Korea</mods:affiliation>
|
||
</mods:name>
|
||
<mods:name type="personal">
|
||
<mods:role>
|
||
<mods:roleTerm>Author</mods:roleTerm>
|
||
</mods:role>
|
||
<mods:namePart>Yoon, Seong Myeong</mods:namePart>
|
||
<mods:affiliation>Department of Biology, Chosun University, Gwangju 61452, South Korea</mods:affiliation>
|
||
<mods:nameIdentifier type="email">smyun@chosun.ac.kr</mods:nameIdentifier>
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||
</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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||
</mods:titleInfo>
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||
<mods:part>
|
||
<mods:date>2020</mods:date>
|
||
<mods:detail type="volume">
|
||
<mods:number>970</mods:number>
|
||
</mods:detail>
|
||
<mods:extent unit="page">
|
||
<mods:start>1</mods:start>
|
||
<mods:end>50</mods:end>
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||
</mods:extent>
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||
</mods:part>
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||
</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.970.55035</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.970.55035</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-970-1</mods:identifier>
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<mods:identifier type="ZooBank">134B154EFDBD49A191627E7A0230EA9C</mods:identifier>
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<mods:identifier type="Pensoft-UUID">D2706AF294EF54F682602D4A031CDED9</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="167776864" LSID="urn:lsid:zoobank.org:act:C27927BA-4CC7-46B2-8875-42A550E18543" httpUri="http://treatment.plazi.org/id/ED9C198DD7195A26B5563158F6A50E85" lastPageNumber="1" pageId="0" pageNumber="1">
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<subSubSection pageId="0" pageNumber="1" type="nomenclature">
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<taxonomicName LSID="ED9C198D-D719-5A26-B556-3158F6A50E85" authority="Jung & Kim & Kim & Yoon, 2020" authorityName="Jung & Kim & Kim & Yoon" authorityYear="2020" class="Malacostraca" family="Pseudocrangonyctidae" genus="Pseudocrangonyx" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudocrangonyx concavus" order="Amphipoda" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="concavus" status="sp. nov.">Pseudocrangonyx concavus</taxonomicName>
|
||
<taxonomicNameLabel pageId="0" pageNumber="1">sp. nov.</taxonomicNameLabel>
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A habitus B head C antenna 1 D, E antenna 2, lateral (D) and medial (E) F upper lip G lower lip H right mandible I incisor and lacinia mobilis of left mandible J maxilla 1 K maxilla 2 L maxilliped." figureDoi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1">Figs 1</figureCitation>
|
||
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A gnathopod 1 B rastellate seta of gnathopod 1 C palm of gnathopod 1 D gnathopod 2 E rastellate setae of gnathopod 2 F palm of gnathopod 2 G pereopod 3 H pereopod 4 I oostergite of pereopod 4." figureDoi="10.3897/zookeys.970.55035.figure2" httpUri="https://binary.pensoft.net/fig/454695" pageId="0" pageNumber="1">, 2</figureCitation>
|
||
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A pereopod 5 B pereopod 6 C coxal gill of pereopod 6 D pereopod 7 E coxa of pereopod F pleopod 1 G pleopod 2 H pleopod 3 I epimeral plates 1 - 3. Abbreviation: Ep, epimeral plate." figureDoi="10.3897/zookeys.970.55035.figure3" httpUri="https://binary.pensoft.net/fig/454696" pageId="0" pageNumber="1">, 3</figureCitation>
|
||
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A sternal gills B pleonites and urosomites, dorsal C uropod 1 D uropod 2 E uropod 3 F telson. Abbreviations: Pl, pleonite; Uro, urosomite; sg, sternal gill; ir, inner ramus; and or, outer ramus." figureDoi="10.3897/zookeys.970.55035.figure4" httpUri="https://binary.pensoft.net/fig/454697" pageId="0" pageNumber="1">, 4</figureCitation>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="korean name">
|
||
<paragraph pageId="0" pageNumber="1">Korean name.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">O-mok-nal-gae-dong-gul-yeop-sae-u, new</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="type locality">
|
||
<paragraph pageId="0" pageNumber="1">Type locality.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Hwansangul Cave, Samcheok-si, Gangwon-do, South Korea;
|
||
<geoCoordinate degrees="37" direction="north" minutes="20" orientation="latitude" precision="15" seconds="55" value="37.34861">37°20'55"N</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="129" direction="east" minutes="04" orientation="longitude" precision="15" seconds="45" value="129.07916">129°04'45"E</geoCoordinate>
|
||
.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" pageId="0" pageNumber="1">Material examined.</emphasis>
|
||
Type material.
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Holotype</emphasis>
|
||
: 1 female, 9.2 mm, NIBRIV0000862807.
|
||
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Paratypes</emphasis>
|
||
: 4 specimens, NIBRIV0000872407. All type materials were collected from the type locality on 19 Jan 2001 by YG Choi.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">Additional material. 1 female, 8.9 mm, NIBRIV0000872408; 1 male, 5.5 mm, NIBRIV0000872409, collected from the type locality on 13 Jan 2010 by YG Choi.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="etymology">
|
||
<paragraph pageId="0" pageNumber="1">Etymology.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
The specific name originates from the Latin word
|
||
<taxonomicName authorityName="Jung & Kim & Kim & Yoon" authorityYear="2020" class="Malacostraca" family="Pseudocrangonyctidae" genus="Pseudocrangonyx" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="concavus" order="Amphipoda" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="concavus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">concavus</emphasis>
|
||
</taxonomicName>
|
||
meaning concave, hollow. This name refers to the shape of posteriorly emarginated ventral margin of epimeral plate 3.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="diagnosis">
|
||
<paragraph pageId="0" pageNumber="1">Diagnosis.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Maxilla 1 inner lobe with five plumose setae on apical margin; 2nd palp article with eight robust setae along distomedial and apical margins. Maxilla 2 inner lobe with one oblique row of seven plumose setae on surface; outer lobe apical margin with three plumose setae medially. Pereopod 5 coxa anterior lobe expanded ventrally (1.00
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
longer than wide), margin lined with seven simple setae; basis expanded and subrectangular (0.55
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
wider than long). Pereopod 6 coxa anterior lobe 0.62
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as that of pereopod 5, with one seta only on ventral margin; basis expanded. Sternal gills present from pereonites 2-5 (1+2+1+1 in formulae). Epimeral plate 2 ventral margin with two submarginal setae anteriorly, posterodistal corner slightly notched bearing one elongate setae. Epimeral plate 3 posterodistal corner without notch, rounded, ventral margin with three submarginal setae anteriorly, posteriorly emarginated. Uropod 1 inner ramus with one elongate seta on ventral margin subproximally. Uropod 2 peduncle 0.62
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as that of uropod 1.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="description">
|
||
<paragraph pageId="0" pageNumber="1">Description.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Holotype female: Body (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A habitus B head C antenna 1 D, E antenna 2, lateral (D) and medial (E) F upper lip G lower lip H right mandible I incisor and lacinia mobilis of left mandible J maxilla 1 K maxilla 2 L maxilliped." figureDoi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1">1A</figureCitation>
|
||
) approximately 9.2 mm long.
|
||
</paragraph>
|
||
<caption doi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1" start="Figure 1" startId="F1">
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" pageId="0" pageNumber="1">Figure 1.</emphasis>
|
||
<taxonomicName authorityName="Jung & Kim & Kim & Yoon" authorityYear="2020" class="Malacostraca" family="Pseudocrangonyctidae" genus="Pseudocrangonyx" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudocrangonyx concavus" order="Amphipoda" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="concavus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Pseudocrangonyx concavus</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. Holotype: female, NIBRV0000862807, 9.2 mm, from Hwansangul Cave, South Korea.
|
||
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
|
||
habitus
|
||
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
|
||
head
|
||
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
|
||
antenna 1
|
||
<emphasis bold="true" pageId="0" pageNumber="1">D, E</emphasis>
|
||
antenna 2, lateral (
|
||
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
|
||
) and medial (
|
||
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
|
||
)
|
||
<emphasis bold="true" pageId="0" pageNumber="1">F</emphasis>
|
||
upper lip
|
||
<emphasis bold="true" pageId="0" pageNumber="1">G</emphasis>
|
||
lower lip
|
||
<emphasis bold="true" pageId="0" pageNumber="1">H</emphasis>
|
||
right mandible
|
||
<emphasis bold="true" pageId="0" pageNumber="1">I</emphasis>
|
||
incisor and lacinia mobilis of left mandible
|
||
<emphasis bold="true" pageId="0" pageNumber="1">J</emphasis>
|
||
maxilla 1
|
||
<emphasis bold="true" pageId="0" pageNumber="1">K</emphasis>
|
||
maxilla 2
|
||
<emphasis bold="true" pageId="0" pageNumber="1">L</emphasis>
|
||
maxilliped.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Head (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A habitus B head C antenna 1 D, E antenna 2, lateral (D) and medial (E) F upper lip G lower lip H right mandible I incisor and lacinia mobilis of left mandible J maxilla 1 K maxilla 2 L maxilliped." figureDoi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1">1B</figureCitation>
|
||
) as long as pereonite 1; rostrum reduced, without minute setae; lateral cephalic lobe anteriorly expanded, apex rounded, slightly dilated anteroventrally; antennal sinus not deep; eye absent.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Antenna 1 (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A habitus B head C antenna 1 D, E antenna 2, lateral (D) and medial (E) F upper lip G lower lip H right mandible I incisor and lacinia mobilis of left mandible J maxilla 1 K maxilla 2 L maxilliped." figureDoi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1">1C</figureCitation>
|
||
) 0.51
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as body; peduncle 1st-3rd articles length ratio of 1.00: 0.76: 0.40; 1st article stout, with one pair of robust setae on posterior margin; accessory flagellum bi-articulate, last article very reduced, with one pair of aesthetascs distally; flagellum 1.15
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as peduncles, composed of 16 articles, calceoli absent, aesthetascs present on the 9th-11th, 13th, 14th, and last articles.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Antenna 2 (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A habitus B head C antenna 1 D, E antenna 2, lateral (D) and medial (E) F upper lip G lower lip H right mandible I incisor and lacinia mobilis of left mandible J maxilla 1 K maxilla 2 L maxilliped." figureDoi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1">1D, E</figureCitation>
|
||
) 0.59
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as antenna 1; antennal cone developed, apex rounded; peduncle 4th and 5th articles length ratio of 1.00: 0.89; 4th article margins parallel, 0.27
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
wider than long, posterior margin with one row of setae at the middle and one elongate seta subdistally, 5th article 0.75
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
wider than 4th article, two calceoli present on medial surface; flagellum composed of eight articles, 1.21
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as peduncle 5th article, single calceoli present on 1st, 4th, and 5th articles medially, aesthetascs absent.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Upper lip (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A habitus B head C antenna 1 D, E antenna 2, lateral (D) and medial (E) F upper lip G lower lip H right mandible I incisor and lacinia mobilis of left mandible J maxilla 1 K maxilla 2 L maxilliped." figureDoi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1">1F</figureCitation>
|
||
) anteriorly rounded, apex covered with minute setae, slightly notched.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Lower lip (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A habitus B head C antenna 1 D, E antenna 2, lateral (D) and medial (E) F upper lip G lower lip H right mandible I incisor and lacinia mobilis of left mandible J maxilla 1 K maxilla 2 L maxilliped." figureDoi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1">1G</figureCitation>
|
||
) inner lobes indistinct; outer lobes covered with minute setae; mandibular processes developed.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Mandibles (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A habitus B head C antenna 1 D, E antenna 2, lateral (D) and medial (E) F upper lip G lower lip H right mandible I incisor and lacinia mobilis of left mandible J maxilla 1 K maxilla 2 L maxilliped." figureDoi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1">1H, I</figureCitation>
|
||
) incisor 5-dentate on both sides; lacinia mobilis tri-cuspidate (each finely dentate) on right side and bi-furcate (one 5-dentate and the other not dentate) on left side; four raker setae present on both sides; molar process columnar, triturative, with one plumose seta on right side only; palp tri-articulte; 2nd article convex and with 14 setae medially; 3rd article subfalcate, 1.31
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as 2nd article, lined with 19 setae from medial margin to apex.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Maxilla 1 (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A habitus B head C antenna 1 D, E antenna 2, lateral (D) and medial (E) F upper lip G lower lip H right mandible I incisor and lacinia mobilis of left mandible J maxilla 1 K maxilla 2 L maxilliped." figureDoi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1">1J</figureCitation>
|
||
) inner lobe subrhomboid, with five plumose setae on apical margin; outer lobe with seven dentate robust setae; palp bi-articulate, 2nd article apex slightly exceeding apical setae of outer plate, with eight robust setae along distomedial and apical margins, with one oblique row of seven setae subdistally.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Maxilla 2 (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A habitus B head C antenna 1 D, E antenna 2, lateral (D) and medial (E) F upper lip G lower lip H right mandible I incisor and lacinia mobilis of left mandible J maxilla 1 K maxilla 2 L maxilliped." figureDoi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1">1K</figureCitation>
|
||
) inner lobe slightly shorter but wider than outer lobe, with one oblique row of seven plumose setae on surface and two rows of simple setae on apical margin; outer lobe apical margin with three plumose setae medially, also with two rows of simple setae.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Maxilliped (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A habitus B head C antenna 1 D, E antenna 2, lateral (D) and medial (E) F upper lip G lower lip H right mandible I incisor and lacinia mobilis of left mandible J maxilla 1 K maxilla 2 L maxilliped." figureDoi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1">1L</figureCitation>
|
||
) inner lobe subrectangular, with three dentate robust setae on apex and eight plumose setae subapically; outer lobe elongate semicircular, 0.89
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as palp 2nd article, with two dentate robust setae and six plumose setae apically; palp composed of four articles; 2nd article with many setae on medial margin; 3rd article slightly dilated distally, 0.60
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as 2nd article; 4th article falcate, 0.67
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as 3rd article, apical setae 0.67
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as 4th article.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Gnathopod 1 (Fig.
|
||
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A gnathopod 1 B rastellate seta of gnathopod 1 C palm of gnathopod 1 D gnathopod 2 E rastellate setae of gnathopod 2 F palm of gnathopod 2 G pereopod 3 H pereopod 4 I oostergite of pereopod 4." figureDoi="10.3897/zookeys.970.55035.figure2" httpUri="https://binary.pensoft.net/fig/454695" pageId="0" pageNumber="1">2A-C</figureCitation>
|
||
) coxa subrectangular, 1.52
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
wider than long, slightly produced anterodistal corner with five setae marginally, ventral margin slightly convex, with one seta posteriorly, posterior margin humped proximally; basis obtuse trapezoidal, posteriorly expanded, 0.49
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
wider than long, lined with elongate simple setae posteriorly, anterior margin obliquely truncated distally, without setae; ischium 0.30
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis, with small anterior lobe; carpus 0.51
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis, with one robust seta on anterior margin, carpal lobe not developed, apex rounded with three rastellate setae and many simple or serrate setae; propodus subovate, 1.30
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long and 1.65
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as wide as basis, with five robust setae laterally along posterior margin distally and ten robust setae medially along posterior margin and palm (all medial setae small, but lateral setae larger and successively increasing distally), palm irregular, finely serrated, defined by largest lateral seta of posterior margin; dactylus as long as palm, inner margin toothed, outer margin with four setae, unguis developed.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Gnathopod 2 (Fig.
|
||
<figureCitation captionStart="Figure 1" captionStartId="F1" captionText="Figure 1. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A habitus B head C antenna 1 D, E antenna 2, lateral (D) and medial (E) F upper lip G lower lip H right mandible I incisor and lacinia mobilis of left mandible J maxilla 1 K maxilla 2 L maxilliped." figureDoi="10.3897/zookeys.970.55035.figure1" httpUri="https://binary.pensoft.net/fig/454694" pageId="0" pageNumber="1">1D-F</figureCitation>
|
||
) as long as gnathopod 1; coxa 1.28
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as that of gnathopod 1, 1.19
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
wider than long, anterior and ventral margins not produced, rounded, lined with seven setae anteriorly and three setae posteriorly, posterior margin humped proximally; coxal gill present, subovate; oostegite present, narrow, shorter than coxal gill, without marginal setae; basis subtrapezoidal, posteriorly expanded, 0.37
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
wider than long, lined with elongate simple setae posteriorly, anterior margin with one seta subdistally; ischium 0.19
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis, with small anterior lobe; carpus 0.42
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis, with one pair of robust seta and simple seta on anterior margin, carpal lobe not developed, apex rounded with one rastellate seta and many simple or serrate setae; propodus trapezoidal, 0.98
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long and 1.42
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as wide as basis, anterior margin slightly convex, posterior margin 0.49
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as anterior margin, lined with five clusters of elongate setae, palm irregular, finely serrated, lined with six medial and eight lateral robust setae (palm defined by two unequal setae distally among lateral setae); dactylus as long as palm, inner margin toothed, outer margin with three setae, unguis developed.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Pereopod 3 (Fig.
|
||
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A gnathopod 1 B rastellate seta of gnathopod 1 C palm of gnathopod 1 D gnathopod 2 E rastellate setae of gnathopod 2 F palm of gnathopod 2 G pereopod 3 H pereopod 4 I oostergite of pereopod 4." figureDoi="10.3897/zookeys.970.55035.figure2" httpUri="https://binary.pensoft.net/fig/454695" pageId="0" pageNumber="1">2G</figureCitation>
|
||
) coxa rectangular, 1.24
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
wider than long, ventral margin with six anterior and three posterior setae, posterior margin slightly humped proximally; coxal gill present, subovate; oostegite present, narrow, shorter than coxal gill, without marginal setae; basis expanded, 0.80
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as wide and 2.60
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as coxa, width longest at proximal 1/3 and gradually diminished distally, anterior margin slightly convex, lined with simple setae, posterior margin lined with elongate setae; ischium 0.15
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis; merus anterodistally expanded, 0.31
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
wider than long, 0.58
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis, anterodistal corner produced, apex blunt; carpus not expanded, 0.46
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis; propodus 0.49
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis, linear; dactylus 0.38
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as propodus, unguis developed.
|
||
</paragraph>
|
||
<caption doi="10.3897/zookeys.970.55035.figure2" httpUri="https://binary.pensoft.net/fig/454695" pageId="0" pageNumber="1" start="Figure 2" startId="F2">
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" pageId="0" pageNumber="1">Figure 2.</emphasis>
|
||
<taxonomicName authorityName="Jung & Kim & Kim & Yoon" authorityYear="2020" class="Malacostraca" family="Pseudocrangonyctidae" genus="Pseudocrangonyx" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudocrangonyx concavus" order="Amphipoda" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="concavus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Pseudocrangonyx concavus</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. Holotype: female, NIBRV0000862807, 9.2 mm, from Hwansangul Cave, South Korea.
|
||
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
|
||
gnathopod 1
|
||
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
|
||
rastellate seta of gnathopod 1
|
||
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
|
||
palm of gnathopod 1
|
||
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
|
||
gnathopod 2
|
||
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
|
||
rastellate setae of gnathopod 2
|
||
<emphasis bold="true" pageId="0" pageNumber="1">F</emphasis>
|
||
palm of gnathopod 2
|
||
<emphasis bold="true" pageId="0" pageNumber="1">G</emphasis>
|
||
pereopod 3
|
||
<emphasis bold="true" pageId="0" pageNumber="1">H</emphasis>
|
||
pereopod 4
|
||
<emphasis bold="true" pageId="0" pageNumber="1">I</emphasis>
|
||
oostergite of pereopod 4.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Pereopod 4 (Fig.
|
||
<figureCitation captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A gnathopod 1 B rastellate seta of gnathopod 1 C palm of gnathopod 1 D gnathopod 2 E rastellate setae of gnathopod 2 F palm of gnathopod 2 G pereopod 3 H pereopod 4 I oostergite of pereopod 4." figureDoi="10.3897/zookeys.970.55035.figure2" httpUri="https://binary.pensoft.net/fig/454695" pageId="0" pageNumber="1">2H, I</figureCitation>
|
||
) similar to pereopod 3 except that merus 0.92
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as that of pereopod 3; different number or position of several setae.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Pereopod 5 (Fig.
|
||
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A pereopod 5 B pereopod 6 C coxal gill of pereopod 6 D pereopod 7 E coxa of pereopod F pleopod 1 G pleopod 2 H pleopod 3 I epimeral plates 1 - 3. Abbreviation: Ep, epimeral plate." figureDoi="10.3897/zookeys.970.55035.figure3" httpUri="https://binary.pensoft.net/fig/454696" pageId="0" pageNumber="1">3A</figureCitation>
|
||
) coxa bilobate, anterior lobe larger than posterior lobe, expanded ventrally (1.00
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
longer than wide), margin rounded, lined with seven simple setae; posterior lobe with two setae at posterior corner (ventral one very short); coxal gill present, subovate; oostegite present, narrow, shortest, without marginal setae; basis expanded, subrectangular, 0.55
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
wider than long, anterior margin slightly convex, lined with three single robust setae and two pairs of robust and simple setae, with one cluster of elongate simple setae at distal corner, posterior margin lined with twelve elongate simple setae, distal corner produced forming an angle; merus posterodistally expanded, 0.42
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as wide and 0.80
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis, anterior margin with two clusters of simple setae marginally and one cluster of simple setae distally, posterior margin with one single robust seta and one pair of unequal setae marginally and one cluster of robust setae distally; carpus not expanded, 0.69
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis, anterior margin with two marginal clusters and one distal cluster of setae, posterior margin with one marginal and one distal clusters of setae; propodus linear, 1.03
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as carpus, anterior margin with three setal clusters (longest seta of distal cluster slightly exceeding end of propodus) and one pair of locking robust setae distally, posterior margin with one single and one pair of marginal short seta and one distal cluster of elongate setae; dactylus 0.31
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as propodus, unguis developed.
|
||
</paragraph>
|
||
<caption doi="10.3897/zookeys.970.55035.figure3" httpUri="https://binary.pensoft.net/fig/454696" pageId="0" pageNumber="1" start="Figure 3" startId="F3">
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" pageId="0" pageNumber="1">Figure 3.</emphasis>
|
||
<taxonomicName authorityName="Jung & Kim & Kim & Yoon" authorityYear="2020" class="Malacostraca" family="Pseudocrangonyctidae" genus="Pseudocrangonyx" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudocrangonyx concavus" order="Amphipoda" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="concavus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Pseudocrangonyx concavus</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. Holotype: female, NIBRV0000862807, 9.2 mm, from Hwansangul Cave, South Korea.
|
||
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
|
||
pereopod 5
|
||
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
|
||
pereopod 6
|
||
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
|
||
coxal gill of pereopod 6
|
||
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
|
||
pereopod 7
|
||
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
|
||
coxa of pereopod
|
||
<emphasis bold="true" pageId="0" pageNumber="1">F</emphasis>
|
||
pleopod 1
|
||
<emphasis bold="true" pageId="0" pageNumber="1">G</emphasis>
|
||
pleopod 2
|
||
<emphasis bold="true" pageId="0" pageNumber="1">H</emphasis>
|
||
pleopod 3
|
||
<emphasis bold="true" pageId="0" pageNumber="1">I</emphasis>
|
||
epimeral plates 1-3. Abbreviation: Ep, epimeral plate.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Pereopod 6 (Fig.
|
||
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A pereopod 5 B pereopod 6 C coxal gill of pereopod 6 D pereopod 7 E coxa of pereopod F pleopod 1 G pleopod 2 H pleopod 3 I epimeral plates 1 - 3. Abbreviation: Ep, epimeral plate." figureDoi="10.3897/zookeys.970.55035.figure3" httpUri="https://binary.pensoft.net/fig/454696" pageId="0" pageNumber="1">3B, C</figureCitation>
|
||
) 1.14
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as pereopod 5; coxa bilobate, anterior lobe 0.62
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as that of pereopod 5, with one seta only on ventral margin, posterior lobe expanded backward, with one seta at posterior corner; coxal gill present, subovate; oostegite absent; basis expanded, subrectangular, 1.16
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long and 1.00
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as wide as that of pereopod 5, 0.46
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
wider than long, anterior margin slightly convex, lined with three single robust setae and three clusters of robust and simple setae, with one cluster of elongate simple setae at distal corner, posterior margin lined with twelve setae, distal corner produced forming an angle; merus posterodistally expanded, 1.22
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as that of pereopod 5, 0.50
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as wide and 0.84
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis, anterior margin with three marginal clusters and one distal cluster of simple setae, posterior margin with two marginal clusters and one distal cluster of simple and robust setae; carpus not expanded, 0.73
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis, anterior margin with three marginal clusters and one distal cluster of simple and robust setae, posterior margin with one simple seta and one cluster of simple and robust setae marginally and one cluster of setae distally; propodus linear, 0.92
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as carpus, anterior margin with three setal clusters (longest seta of distal cluster not exceeding end of propodus) and one pair of locking robust setae distally, posterior margin with one marginal short seta and one distal cluster of elongate setae; dactylus 0.37
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as propodus, unguis developed.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Pereopod 7 (Fig.
|
||
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A pereopod 5 B pereopod 6 C coxal gill of pereopod 6 D pereopod 7 E coxa of pereopod F pleopod 1 G pleopod 2 H pleopod 3 I epimeral plates 1 - 3. Abbreviation: Ep, epimeral plate." figureDoi="10.3897/zookeys.970.55035.figure3" httpUri="https://binary.pensoft.net/fig/454696" pageId="0" pageNumber="1">3D, E</figureCitation>
|
||
) 1.06
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as pereopod 6; coxa unilobed, subtriangular, 0.77
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as that of pereopod 6, with one seta on ventral margin, posteriorly expanded with one seta at posterior corner;); coxal gill and oostegite absent; basis expanded, subrectangular, 1.00
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long and 0.92
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as wide as that of pereopod 6, 0.42
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
wider than long, anterior margin slightly convex, lined with three single setae and two clusters of setae, with one cluster of elongate simple setae at distal corner, posterior margin lined with eight setae, distal corner slightly produced but angle smaller than those of pereopods 6 and 7; merus posterodistally expanded, 0.80
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as that of pereopod 6, 0.54
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as wide and 0.67
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as basis, anterior margin with two marginal clusters and one distal cluster of simple setae, posterior margin with one single robust seta and one cluster of simple and robust setae marginally, and one cluster of simple and robust setae distally; carpus not expanded, rectangular, 0.24
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as wide as long, 1.09
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as merus, anterior margin with three marginal clusters and one distal cluster of simple and robust setae, posterior margin with one simple seta and one cluster of simple and robust setae marginally, and one cluster of simple and robust setae distally; propodus linear, 1.11
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as carpus, anterior margin with three setal clusters (longest seta of distal cluster not exceeding end of propodus) and one pair of locking robust setae distally, posterior margin with two marginal short setae and one distal cluster of setae posteriorly (shorter than those of pereopods 6 and 7); dactylus 0.38
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as propodus, unguis developed.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Sternal gills (Fig.
|
||
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A sternal gills B pleonites and urosomites, dorsal C uropod 1 D uropod 2 E uropod 3 F telson. Abbreviations: Pl, pleonite; Uro, urosomite; sg, sternal gill; ir, inner ramus; and or, outer ramus." figureDoi="10.3897/zookeys.970.55035.figure4" httpUri="https://binary.pensoft.net/fig/454697" pageId="0" pageNumber="1">4A</figureCitation>
|
||
) present in pereonites 2 to 5 (1+2+1+1 in formulae), narrower than oostegites, shortest in that of pereonite 5.
|
||
</paragraph>
|
||
<caption doi="10.3897/zookeys.970.55035.figure4" httpUri="https://binary.pensoft.net/fig/454697" pageId="0" pageNumber="1" start="Figure 4" startId="F4">
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<emphasis bold="true" pageId="0" pageNumber="1">Figure 4.</emphasis>
|
||
<taxonomicName authorityName="Jung & Kim & Kim & Yoon" authorityYear="2020" class="Malacostraca" family="Pseudocrangonyctidae" genus="Pseudocrangonyx" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudocrangonyx concavus" order="Amphipoda" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="concavus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Pseudocrangonyx concavus</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. Holotype: female, NIBRV0000862807, 9.2 mm, from Hwansangul Cave, South Korea.
|
||
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
|
||
sternal gills
|
||
<emphasis bold="true" pageId="0" pageNumber="1">B</emphasis>
|
||
pleonites and urosomites, dorsal
|
||
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
|
||
uropod 1
|
||
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
|
||
uropod 2
|
||
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
|
||
uropod 3
|
||
<emphasis bold="true" pageId="0" pageNumber="1">F</emphasis>
|
||
telson. Abbreviations: Pl, pleonite; Uro, urosomite; sg, sternal gill; ir, inner ramus; and or, outer ramus.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Epimeral plate 1 subquadrate, a little produced posteroventrally, ventral margin without setae, posterior margin with four setae, posterodistal corner slightly notched bearing one elongate seta. Epimeral plate 2 subquadrate, larger than plate 1, ventral margin with two submarginal setae anteriorly, posterior margin with three setae, posterodistal corner slightly notched bearing one elongate seta. Epimeral plate 3 posterior margin with three setae, posterodistal corner without notch, rounded, ventral margin with three submarginal setae anteriorly, posteriorly emarginated. (Fig.
|
||
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A pereopod 5 B pereopod 6 C coxal gill of pereopod 6 D pereopod 7 E coxa of pereopod F pleopod 1 G pleopod 2 H pleopod 3 I epimeral plates 1 - 3. Abbreviation: Ep, epimeral plate." figureDoi="10.3897/zookeys.970.55035.figure3" httpUri="https://binary.pensoft.net/fig/454696" pageId="0" pageNumber="1">3I</figureCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Pleopod 1 (Fig.
|
||
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A pereopod 5 B pereopod 6 C coxal gill of pereopod 6 D pereopod 7 E coxa of pereopod F pleopod 1 G pleopod 2 H pleopod 3 I epimeral plates 1 - 3. Abbreviation: Ep, epimeral plate." figureDoi="10.3897/zookeys.970.55035.figure3" httpUri="https://binary.pensoft.net/fig/454696" pageId="0" pageNumber="1">3F</figureCitation>
|
||
) peduncle with one pair of retinaculae mediodistally and one cluster of three simple setae laterodistally; outer ramus 1.55
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as peduncle, composed of twelve articles; inner ramus 1.85
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as peduncle, composed of eleven articles (coalesced 1st article as long as proximal four articles of outer ramus combined).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Pleopod 2 (Fig.
|
||
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A pereopod 5 B pereopod 6 C coxal gill of pereopod 6 D pereopod 7 E coxa of pereopod F pleopod 1 G pleopod 2 H pleopod 3 I epimeral plates 1 - 3. Abbreviation: Ep, epimeral plate." figureDoi="10.3897/zookeys.970.55035.figure3" httpUri="https://binary.pensoft.net/fig/454696" pageId="0" pageNumber="1">3G</figureCitation>
|
||
) peduncle 1.08
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as that of pleopod 1, with one pair of retinaculae mediodistally and one pair of simple setae laterodistally; outer ramus as long as peduncle, composed of nine articles; inner ramus as long as outer ramus, composed of seven articles (coalesced 1st article as long as proximal four articles of outer ramus combined).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Pleopod 3 (Fig.
|
||
<figureCitation captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A pereopod 5 B pereopod 6 C coxal gill of pereopod 6 D pereopod 7 E coxa of pereopod F pleopod 1 G pleopod 2 H pleopod 3 I epimeral plates 1 - 3. Abbreviation: Ep, epimeral plate." figureDoi="10.3897/zookeys.970.55035.figure3" httpUri="https://binary.pensoft.net/fig/454696" pageId="0" pageNumber="1">3H</figureCitation>
|
||
) 1.11
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as pleopod 2; peduncle 0.91
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as that of pleopod 2, with one pair of retinaculae mediodistally and one pair of simple setae laterodistally; outer ramus 1.36
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as peduncle, composed of ten articles; inner ramus 1.21
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as outer ramus, composed of ten articles (coalesced 1st article 1.20
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as proximal two articles of outer ramus combined).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Uropod 1 (Fig.
|
||
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A sternal gills B pleonites and urosomites, dorsal C uropod 1 D uropod 2 E uropod 3 F telson. Abbreviations: Pl, pleonite; Uro, urosomite; sg, sternal gill; ir, inner ramus; and or, outer ramus." figureDoi="10.3897/zookeys.970.55035.figure4" httpUri="https://binary.pensoft.net/fig/454697" pageId="0" pageNumber="1">4C</figureCitation>
|
||
) peduncle with one basofacial seta, with three marginal robust setae and one distal robust seta dorsolaterally, with one distal robust seta dorsomedially; outer ramus 0.59
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as peduncle, with one simple seta dorsomedially and two robust setae dorsolaterally, apical cluster composed of five robust setae; inner ramus 1.32
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as outer ramus, with three robust setae dorsomedially, apical cluster composed of five robust and two simple setae, with one elongate seta on ventral margin subproximally.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Uropod 2 (Fig.
|
||
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A sternal gills B pleonites and urosomites, dorsal C uropod 1 D uropod 2 E uropod 3 F telson. Abbreviations: Pl, pleonite; Uro, urosomite; sg, sternal gill; ir, inner ramus; and or, outer ramus." figureDoi="10.3897/zookeys.970.55035.figure4" httpUri="https://binary.pensoft.net/fig/454697" pageId="0" pageNumber="1">4D</figureCitation>
|
||
) 0.70
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as uropod 1; peduncle 0.62
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as that of uropod 1, with one marginal seta and one distal seta on both lateral and medial margins; outer ramus 0.77
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as peduncle, with two robust setae dorsolaterally, apical cluster composed of five robust setae; inner ramus 1.35
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as outer ramus, with three robust setae dorsomedially, apical cluster composed of one simple seta and six robust setae (apex of one robust seta abnormal).
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Uropod 3 (Fig.
|
||
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A sternal gills B pleonites and urosomites, dorsal C uropod 1 D uropod 2 E uropod 3 F telson. Abbreviations: Pl, pleonite; Uro, urosomite; sg, sternal gill; ir, inner ramus; and or, outer ramus." figureDoi="10.3897/zookeys.970.55035.figure4" httpUri="https://binary.pensoft.net/fig/454697" pageId="0" pageNumber="1">4E</figureCitation>
|
||
) uniramous, 0.91
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as uropod 1; peduncle short, 0.58
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as that of uropod 2, with two minute setae on medial margin, with two setal clusters on mediodistal and laterodistal corners; ramus 3.1
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as peduncle, bi-articulate, proximal article gradually diminished in width, with three lateral and four medial clusters of setae (longest one of distal cluster exceeding distal article of ramus), distal article 0.13
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as long as proximal article, with three simple setae apically.
|
||
</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
Telson (Fig.
|
||
<figureCitation captionStart="Figure 4" captionStartId="F4" captionText="Figure 4. Pseudocrangonyx concavus sp. nov. Holotype: female, NIBRV 0000862807, 9.2 mm, from Hwansangul Cave, South Korea. A sternal gills B pleonites and urosomites, dorsal C uropod 1 D uropod 2 E uropod 3 F telson. Abbreviations: Pl, pleonite; Uro, urosomite; sg, sternal gill; ir, inner ramus; and or, outer ramus." figureDoi="10.3897/zookeys.970.55035.figure4" httpUri="https://binary.pensoft.net/fig/454697" pageId="0" pageNumber="1">4F</figureCitation>
|
||
) 0.78
|
||
<normalizedToken originalValue="×">x</normalizedToken>
|
||
as wide as long, cleft for 43% of length, each lobe with one cluster of two or three penicillate setae dorsally, and one penicillate seta and three robust setae on apex.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="0" pageNumber="1" type="remarks">
|
||
<paragraph pageId="0" pageNumber="1">Remarks.</paragraph>
|
||
<paragraph pageId="0" pageNumber="1">
|
||
<taxonomicName authorityName="Jung & Kim & Kim & Yoon" authorityYear="2020" class="Malacostraca" family="Pseudocrangonyctidae" genus="Pseudocrangonyx" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudocrangonyx concavus" order="Amphipoda" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="concavus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Pseudocrangonyx concavus</emphasis>
|
||
</taxonomicName>
|
||
sp. nov. resembles
|
||
<taxonomicName class="Malacostraca" family="Pseudocrangonyctidae" genus="Pseudocrangonyx" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pseudocrangonyx asiaticus" order="Amphipoda" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="asiaticus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">Pseudocrangonyx asiaticus</emphasis>
|
||
</taxonomicName>
|
||
sensu
|
||
<bibRefCitation author="Ueno, M" journalOrPublisher="Annotationes Zoologicae Japonenses" pageId="0" pageNumber="1" pagination="445 - 450" refId="B25" refString="Ueno, M, 1934. Subterranean Crustacea from Kwantung. Annotationes Zoologicae Japonenses 14: 445 - 450" title="Subterranean Crustacea from Kwantung." volume="14" year="1934">
|
||
<normalizedToken originalValue="Uéno">Ueno</normalizedToken>
|
||
(1934)
|
||
</bibRefCitation>
|
||
, but differs in the absence of calceoli in the flagellum of antenna 1 (compared to the slender calceoli present in that of
|
||
<taxonomicName lsidName="P. asiaticus" pageId="0" pageNumber="1" rank="species" species="asiaticus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">P. asiaticus</emphasis>
|
||
</taxonomicName>
|
||
), in the presence of seven dentate setae on the apical margin of outer plate (compared to five in
|
||
<taxonomicName lsidName="P. asiaticus" pageId="0" pageNumber="1" rank="species" species="asiaticus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">P. asiaticus</emphasis>
|
||
</taxonomicName>
|
||
) and eight setae apically on the palp of maxilla 1 (compared to four in
|
||
<taxonomicName lsidName="P. asiaticus" pageId="0" pageNumber="1" rank="species" species="asiaticus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">P. asiaticus</emphasis>
|
||
</taxonomicName>
|
||
), by the more expanded basis of pereopods 5-7, by bearing sternal gills from pereonites 2 to 5 of 1+2+1+1 in formulae, by the presence of three and four setae on posterior margins of epimeral plates 2 and 3, respectively (compared to six and seven setae in
|
||
<taxonomicName lsidName="P. asiaticus" pageId="0" pageNumber="1" rank="species" species="asiaticus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">P. asiaticus</emphasis>
|
||
</taxonomicName>
|
||
), by the emarginated posteroventral margin of epimeral plate 3 (not emarginated in
|
||
<taxonomicName lsidName="P. asiaticus" pageId="0" pageNumber="1" rank="species" species="asiaticus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">P. asiaticus</emphasis>
|
||
</taxonomicName>
|
||
), by the presence of only one subproximal elongate seta on the ventral margin of the inner ramus on uropod 1 (compared to four in
|
||
<taxonomicName lsidName="P. asiaticus" pageId="0" pageNumber="1" rank="species" species="asiaticus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">P. asiaticus</emphasis>
|
||
</taxonomicName>
|
||
), and by the longer peduncle of uropod 2 than that of
|
||
<taxonomicName lsidName="P. asiaticus" pageId="0" pageNumber="1" rank="species" species="asiaticus">
|
||
<emphasis italics="true" pageId="0" pageNumber="1">P. asiaticus</emphasis>
|
||
</taxonomicName>
|
||
(
|
||
<bibRefCitation author="Ueno, M" journalOrPublisher="Annotationes Zoologicae Japonenses" pageId="0" pageNumber="1" pagination="445 - 450" refId="B25" refString="Ueno, M, 1934. Subterranean Crustacea from Kwantung. Annotationes Zoologicae Japonenses 14: 445 - 450" title="Subterranean Crustacea from Kwantung." volume="14" year="1934">
|
||
<normalizedToken originalValue="Uéno">Ueno</normalizedToken>
|
||
1934
|
||
</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |