treatments-xml/data/ED/38/47/ED38478E8B5B051F0780010F776D6D17.xml
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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.247.3698" ID-GBIF-Dataset="cf0233a4-ecc2-43da-8674-8f01d38cd9a0" ID-PMC="PMC3520137" ID-Pensoft-Pub="1313-2970-247-1" ID-PubMed="23275753" ModsDocAuthor="" ModsDocDate="2012" ModsDocID="1313-2970-247-1" ModsDocOrigin="ZooKeys 247" ModsDocTitle="Four new species of splanchnotrophid copepods (Poecilostomatoida) parasitic on doridacean nudibranchs (Gastropoda, Opistobranchia) from Japan, with proposition of one new genus" checkinTime="1451247889117" checkinUser="pensoft" docAuthor="Uyeno, Daisuke &amp; Nagasawa, Kazuya" docDate="2012" docId="ED38478E8B5B051F0780010F776D6D17" docLanguage="en" docName="ZooKeys 247: 1-29" docOrigin="ZooKeys 247" docSource="http://dx.doi.org/10.3897/zookeys.247.3698" docTitle="Majimun Uyeno &amp; Nagasawa, 2012, gen. n." docType="treatment" docVersion="4" lastPageNumber="9" masterDocId="89687F48FFA9FFA0FFE3BB605F3EFFB2" masterDocTitle="Four new species of splanchnotrophid copepods (Poecilostomatoida) parasitic on doridacean nudibranchs (Gastropoda, Opistobranchia) from Japan, with proposition of one new genus" masterLastPageNumber="29" masterPageNumber="1" pageNumber="8" updateTime="1668154976086" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Four new species of splanchnotrophid copepods (Poecilostomatoida) parasitic on doridacean nudibranchs (Gastropoda, Opistobranchia) from Japan, with proposition of one new genus</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Uyeno, Daisuke</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Nagasawa, Kazuya</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>ZooKeys</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2012</mods:date>
<mods:detail type="volume">
<mods:number>247</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>1</mods:start>
<mods:end>29</mods:end>
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<mods:location>
<mods:url>http://dx.doi.org/10.3897/zookeys.247.3698</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.247.3698</mods:identifier>
<mods:identifier type="Pensoft-Pub">1313-2970-247-1</mods:identifier>
</mods:mods>
<treatment ID-GBIF-Taxon="152039078" LSID="urn:lsid:zoobank.org:act:844ACF3B-5676-4961-A013-4731BE2023FB" httpUri="http://treatment.plazi.org/id/ED38478E8B5B051F0780010F776D6D17" lastPageId="8" lastPageNumber="9" pageId="7" pageNumber="8">
<subSubSection pageId="7" pageNumber="8" type="nomenclature">
<paragraph pageId="7" pageNumber="8">
<taxonomicName LSID="urn:lsid:zoobank.org:act:844ACF3B-5676-4961-A013-4731BE2023FB" class="Hexanauplia" family="Splanchnotrophidae" genus="Majimun" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Majimun" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="genus">Majimun</taxonomicName>
<taxonomicNameLabel pageId="7" pageNumber="8">gen. n.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection lastPageId="8" lastPageNumber="9" pageId="7" pageNumber="8" type="diagnosis of adult female">
<paragraph pageId="7" pageNumber="8">Diagnosis of adult female.</paragraph>
<paragraph pageId="7" pageNumber="8">Body elongate, comprising long prosome with 3 pairs of lateral processes and 3-segmented urosome. Prosome composed of anterior region (cephalosome), middle region (including first and second pedigerous somites), and posterior region (including third and fourth pedigerous somites). Cephalosome elongate. Middle region elongate, about twice as long as wide, without posterolateral processes. Posterior region elongate. Lateral processes long and slender. Urosome small; genital double somite cylindrical, narrower at mid region, bearing paired apertures with slightly prominent posterolateral corners; opercula bearing small shield-like structure with 2 spiniform processes. Caudal rami small, bearing 6 setae; apical seta styliform.</paragraph>
<paragraph pageId="7" pageNumber="8">Antennule 3-segmented bearing spiniform elements; proximal segment subdivided into basal part with 4 spines and distal part with 3 elements; middle segment bearing 3 elements; terminal segment bearing 11 elements. Antenna 3-segmented; coxo-basis broad, bearing 1 medial spiniform element; proximal segment of endopod bearing 1 inner spiniform element; terminal segment of endopod drawn out into strong apical claw, with 4 and 1 elements along outer and inner margins, respectively. Labrum bilobate, bearing paired extra lobes and small central, conical protrusion. Mandible spatulate, drawn out into blade with 3 dentiform processes. Maxillule not observed. Paragnath bulbous lobe. Maxilla 2-segmented; syncoxa unarmed; allobasis tapering into curved process, with seta. Maxilliped absent. Labium bearing single pointed process, small paired protrusions ornamented with spinules, and posterolateral patches of spinules.</paragraph>
<paragraph lastPageId="8" lastPageNumber="9" pageId="7" pageNumber="8">
Legs 1 and 2 composed of protopod largely incorporated into ventral wall of prosome, with exopodal and endopodal lobes; protopod bearing outer basal seta, small
<pageBreakToken pageId="8" pageNumber="9" start="start">protrusion</pageBreakToken>
at base of endopodal lobe of leg 1; exopodal lobe indistinctly 2-segmented, tapering into spiniform apical process; endopodal lobe cylindrical bearing apical process. Leg 3 represented by conical process with apical seta.
</paragraph>
<paragraph pageId="8" pageNumber="9">Egg sacs cylindrical and spiral.</paragraph>
</subSubSection>
<subSubSection pageId="8" pageNumber="9" type="diagnosis of adult male">
<paragraph pageId="8" pageNumber="9">Diagnosis of adult male.</paragraph>
<paragraph pageId="8" pageNumber="9">Body cyclopiform, composed of cephalothorax and 5 cylindrical somites. Cephalothorax large, bulbous, incorporating first and second pedigerous somites, bearing transverse constriction posterior to mouth parts and paired posterolateral outgrowth. Genital somite bearing paired apertures; opercula unarmed. Caudal rami conical, about as long as wide, bearing 6 setae; apical seta styliform. No marked sexual dimorphism in antennule and mouth parts. Shape of antenna as in female except terminal endopodal segment bearing 5 elements; inner margin bearing 2 of 5 elements. Mandible elongate, drawn out into spatulate apical blade with 3 dentiform processes.</paragraph>
<paragraph pageId="8" pageNumber="9">Legs 1 and 2 composed of round protopod with outer basal seta, indistinctly 2-segmented exopodal lobe drawn out into pointed process, and non-segmented endopodal segment with apical small process. Leg 3 represented by conical process with apical seta.</paragraph>
</subSubSection>
<subSubSection pageId="8" pageNumber="9" type="type and only species">
<paragraph pageId="8" pageNumber="9">Type and only species.</paragraph>
<paragraph pageId="8" pageNumber="9">
<taxonomicName class="Hexanauplia" family="Splanchnotrophidae" genus="Majimun" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Majimun shirakawai" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="shirakawai">Majimun shirakawai</taxonomicName>
sp. n. by the present designation.
</paragraph>
</subSubSection>
<subSubSection pageId="8" pageNumber="9" type="etymology">
<paragraph pageId="8" pageNumber="9">Etymology.</paragraph>
<paragraph pageId="8" pageNumber="9">
The generic name,
<normalizedToken originalValue="“majimun”">&quot;majimun&quot;</normalizedToken>
, refers to a dialect in Okinawa, which means demons. The gender is neuter.
</paragraph>
</subSubSection>
<subSubSection pageId="8" pageNumber="9" type="remarks">
<paragraph pageId="8" pageNumber="9">Remarks.</paragraph>
<paragraph pageId="8" pageNumber="9">
Females of
<taxonomicName class="Hexanauplia" family="Splanchnotrophidae" genus="Lomanoticola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Lomanoticola" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Lomanoticola</taxonomicName>
and
<taxonomicName class="Hexanauplia" family="Splanchnotrophidae" genus="Splanchnotrophus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Splanchnotrophus" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Splanchnotrophus</taxonomicName>
differ from
<taxonomicName class="Hexanauplia" family="Splanchnotrophidae" genus="Majimun" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Majimun" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Majimun</taxonomicName>
gen. n. in having a 2-segmented urosome comprising the genital double somite and the anal somite (vs. a 3-segmented urosome and the genital double somite separated from the abdomen) (
<bibRefCitation author="Huys, R" journalOrPublisher="Journal of Crustacean Biology" pageId="13" pageNumber="14" pagination="106 - 156" title="Splanchnotrophid systematics: a case of polyphyly and taxonomic myopia." url="10.1651/0278-0372(2001)021[0106:SSACOP]2.0.CO;2" volume="21" year="2001">Huys 2001</bibRefCitation>
; present study). Females of
<taxonomicName class="Hexanauplia" family="Splanchnotrophidae" genus="Ismaila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ismaila" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Ismaila</taxonomicName>
spp. share a 3-segmented urosome, which includes 1 postgenital somite (vs. 2 somites). There are also differences in the following female characters between
<taxonomicName class="Hexanauplia" family="Splanchnotrophidae" genus="Ismaila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ismaila" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Ismaila</taxonomicName>
and the new genus: the antennule is 2-segmented (vs. 3-segmented); the mandible consists of a small rod tipped with a short tooth and a slender spine (vs. drawn out into a blade with dentiform processes); the paragnath is absent (vs. present); the maxillule is made of a lobe with 2 setae (vs. absent); and the maxilla has the allobasis drawn out into a multipinnate endite with 2 accessory elements (vs. with the allobasis drawn out into a curved process with 1 seta)(see
<bibRefCitation author="Ho, JS" journalOrPublisher="Journal of Crustacean Biology" pageId="13" pageNumber="14" pagination="130 - 136" title="Ismaila occulta, a new species of poecilostomatoid copepod parasitic in a dendronotid nudibranch from California." url="10.2307/1548210" volume="1" year="1981">Ho 1981</bibRefCitation>
;
<bibRefCitation author="Haumayr, U" journalOrPublisher="Spixiana" pageId="13" pageNumber="14" pagination="1 - 33" title="Revision of the endoparasitic copepod genus Ismaila Bergh, 1867, with description of eight new species (Copepoda, Poecilostomatoida, Splanchnotrophidae)." volume="26" year="2003">
Haumayr and
<normalizedToken originalValue="Schrödl">Schroedl</normalizedToken>
2003
</bibRefCitation>
).
<taxonomicName class="Hexanauplia" family="Splanchnotrophidae" genus="Majimun" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Majimun" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Majimun</taxonomicName>
gen. n. does not show distinct sexual dimorphism in the antennule, the antenna, and the mouth parts. The new genus also possesses a 3-segmented antennule, the mandible, and the paragnath in both sexes and 2 postgenital somites in females. These characters are not shared with
<taxonomicName class="Hexanauplia" family="Splanchnotrophidae" genus="Arthurius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Arthurius" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Arthurius</taxonomicName>
(see
<bibRefCitation author="Huys, R" journalOrPublisher="Journal of Crustacean Biology" pageId="13" pageNumber="14" pagination="106 - 156" title="Splanchnotrophid systematics: a case of polyphyly and taxonomic myopia." url="10.1651/0278-0372(2001)021[0106:SSACOP]2.0.CO;2" volume="21" year="2001">Huys 2001</bibRefCitation>
). All of these characters are shared with
<taxonomicName class="Hexanauplia" family="Splanchnotrophidae" genus="Ceratosomicola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ceratosomicola" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Ceratosomicola</taxonomicName>
, except the 3-segmented antennule. However,
<taxonomicName class="Hexanauplia" family="Splanchnotrophidae" genus="Ceratosomicola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ceratosomicola" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Ceratosomicola</taxonomicName>
differs from the new genus by having the following characters in both sexes: the antennule is composed of 4 distinct segments (vs. 3 segments); the antenna is conical (vs. elongate); the mandible is covered with numerous spinules (vs. spatulate bearing a blade with dentiform processes around apex); and the maxilla possesses a lanceolate process without armature (vs. with process and 1 seta) (see
<bibRefCitation author="Huys, R" journalOrPublisher="Journal of Crustacean Biology" pageId="13" pageNumber="14" pagination="106 - 156" title="Splanchnotrophid systematics: a case of polyphyly and taxonomic myopia." url="10.1651/0278-0372(2001)021[0106:SSACOP]2.0.CO;2" volume="21" year="2001">Huys 2001</bibRefCitation>
; present study).
</paragraph>
</subSubSection>
</treatment>
</document>