208 lines
19 KiB
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208 lines
19 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.766.23239" ID-GBIF-Dataset="93dda8c4-7ac8-4bc4-be76-cca59df9ef8e" ID-PMC="PMC6010508" ID-Pensoft-Pub="1313-2970-766-39" ID-PubMed="29930477" ID-ZBK="BCB2E5D01D084452B61A209E4A56AB0C" ModsDocAuthor="" ModsDocDate="2018" ModsDocID="1313-2970-766-39" ModsDocOrigin="ZooKeys 766" ModsDocTitle="A new species of Stenasellus Dollfus, 1897 from Iran, with a key to the western Asian species (Crustacea, Isopoda, Stenasellidae)" checkinTime="1528950149843" checkinUser="pensoft" docAuthor="Khalaji-Pirbalouty, Valiallah, Fatemi, Yaser, Malek-Hosseini, Mohammad Javad & Kuntner, Matjaz" docDate="2018" docId="830B84E1BA10807BB4469B23FE57A6C5" docLanguage="en" docName="ZooKeys 766: 39-50" docOrigin="ZooKeys 766" docSource="http://dx.doi.org/10.3897/zookeys.766.23239" docTitle="Stenasellus tashanicus Khalaji-Pirbalouty, Fatemi, Malek-Hosseini & Kuntner, 2018, sp. n." docType="treatment" docUuid="F45E3E52-04AA-4238-8059-715858B80AD5" docUuidSource="ZooBank" docVersion="5" lastPageNumber="45" masterDocId="335EFF9CFFEBFF857F014F427D5CBC62" masterDocTitle="A new species of Stenasellus Dollfus, 1897 from Iran, with a key to the western Asian species (Crustacea, Isopoda, Stenasellidae)" masterLastPageNumber="50" masterPageNumber="39" pageNumber="40" updateTime="1668165903521" 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>A new species of Stenasellus Dollfus, 1897 from Iran, with a key to the western Asian species (Crustacea, Isopoda, Stenasellidae)</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Khalaji-Pirbalouty, Valiallah</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Fatemi, Yaser</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Malek-Hosseini, Mohammad Javad</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Kuntner, Matjaz</mods:namePart>
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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>
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<mods:date>2018</mods:date>
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<mods:detail type="volume">
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<mods:number>766</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>39</mods:start>
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<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.766.23239</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.766.23239</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-766-39</mods:identifier>
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<mods:identifier type="ZBK">BCB2E5D01D084452B61A209E4A56AB0C</mods:identifier>
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<mods:identifier type="ZooBank">BCB2E5D01D084452B61A209E4A56AB0C</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="145939673" LSID="urn:lsid:zoobank.org:act:F45E3E52-04AA-4238-8059-715858B80AD5" httpUri="http://treatment.plazi.org/id/830B84E1BA10807BB4469B23FE57A6C5" lastPageId="6" lastPageNumber="45" pageId="1" pageNumber="40">
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<subSubSection pageId="1" pageNumber="40" type="nomenclature">
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<paragraph pageId="1" pageNumber="40">
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<taxonomicName LSID="http://zoobank.org/F45E3E52-04AA-4238-8059-715858B80AD5" class="Malacostraca" family="Stenasellidae" genus="Stenasellus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Stenasellus tashanicus" order="Isopoda" pageId="1" pageNumber="40" phylum="Arthropoda" rank="species" species="tashanicus">Stenasellus tashanicus</taxonomicName>
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<taxonomicNameLabel pageId="1" pageNumber="40">sp. n.</taxonomicNameLabel>
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Figs 2, 3, 4
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</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="40" type="materials_examined">
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<paragraph pageId="1" pageNumber="40">Material examined.</paragraph>
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<paragraph pageId="1" pageNumber="40">All material from Iran with locality data as follows.</paragraph>
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<paragraph pageId="1" pageNumber="40">
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Holotype. ♂ (17.5 mm), Tashan Cave, Sarjooshar Village, Tashan City, Behbahan County, Khuzestan Province, Iran, 13 August 2016,
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="30.865">30°51'54"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="15" value="50.174725">50°10'29"E</geoCoordinate>
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(altitude 559 m a.s.l.), coll. Fatemi, Y. (ZMSU 2010).
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</paragraph>
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<paragraph pageId="1" pageNumber="40">
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Paratypes. 3 ♂♂ (17.1, 12.5, 12 mm), 2 ♀♀ (20, 11mm); 2 juveniles (7.3, 8.5 mm), same data as holotype (ZMSU 2011). 1 ♂ (15 mm), 1 ♀ (18 mm); 1 juveniles (5.5 mm), Tashan Cave, Sarjooshar Village, Tashan City, Behbahan County, Khuzestan Province, Iran, 27 August 2016,
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="30.865">30°51'54"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="15" value="50.174725">50°10'29"E</geoCoordinate>
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(altitude 559 m a.s.l.), coll. Fatemi, Y. and Malek-Hosseini, M.J. (ZMSU 2012).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="41" type="diagnosis">
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<paragraph pageId="2" pageNumber="41">
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<pageBreakToken pageId="2" pageNumber="41" start="start">Diagnosis</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="2" pageNumber="41">
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Body dorsal surface smooth, with scattered marginal setae. Antenna reaching to pereonite V posterior margin in male specimen, with a squama bearing three simple setae on the outer margin of the third article. Maxilla lateral and middle endites each bearing 11 curved pectinate RS; mesial margin of maxilliped endite with six coupling hooks. Appendix masculina slender, elongated, tapering to a curved acute apex; endopod of pleopods
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<normalizedToken originalValue="III–V">III-V</normalizedToken>
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distally bifurcated.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="6" lastPageNumber="45" pageId="2" pageNumber="41" type="description">
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<paragraph pageId="2" pageNumber="41">Description of male.</paragraph>
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<paragraph pageId="2" pageNumber="41">
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Body completely coral pink in the live specimen (Fig. 1C, D), length 4.2 as greatest width, head trapezoidal, with slightly concave frontal margin, dorsal surface smooth. Pereonites
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<normalizedToken originalValue="II–IV">II-IV</normalizedToken>
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subequal in length, with rounded lateral margins, pereonites
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<normalizedToken originalValue="V–VII">V-VII</normalizedToken>
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with posterolateral margins projected posteriorly, pereonites VI and VII sub-equal, longest (Fig. 2A, D). Pleonites
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<normalizedToken originalValue="I–II">I-II</normalizedToken>
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subequal in length, with projected posterolateral corner.
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</paragraph>
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<caption pageId="2" pageNumber="41">
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<paragraph pageId="2" pageNumber="41">
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Figure 2.
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<taxonomicName class="Malacostraca" family="Stenasellidae" genus="Stenasellus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Stenasellus tashanicus" order="Isopoda" pageId="2" pageNumber="41" phylum="Arthropoda" rank="species" species="tashanicus">Stenasellus tashanicus</taxonomicName>
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sp. n., A holotype (ZMSU 2010) dorsal view B female dorsal view C holotype, ventral view (P: Penes, PL: Pleopod I) D lateral view (Pl1, Pl2: Pleonites I & II; Pe5, Pe6, Pe7: Pereonites
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<normalizedToken originalValue="V–VII">V-VII</normalizedToken>
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).
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</paragraph>
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</caption>
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<paragraph pageId="2" pageNumber="41">Pleotelson elongated, 1.4 as long as broad, posterior margin with two slight excavations; with scattered marginal setae.</paragraph>
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<paragraph pageId="2" pageNumber="41">Antennula (Fig. 3A) short, reaching pereonite I posterior margin, slightly longer than the peduncle of antenna, flagellum with 18 articles, articles 8-18 each bearing a single aesthetasc.</paragraph>
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<paragraph lastPageId="3" lastPageNumber="42" pageId="2" pageNumber="41">
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Antenna (Fig. 3B) peduncle articles I and II reduced; the four others longer, increasing in length from the fourth to the sixth; article VI about 1.6 times as article V,
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<pageBreakToken pageId="3" pageNumber="42" start="start">with</pageBreakToken>
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long simple setae distally; article III with minute squama bearing two long RS, flagellum reaching to pereonite V posterior margin, up to 86 articles.
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</paragraph>
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<paragraph pageId="3" pageNumber="42">Left mandible (Fig. 3D, E) incisor and lacinia mobilis with four cusps, spine row of 18 serrate spines, molar with a row of long, tiny, simple setae. Palp article II longer than I, articles III distolateral margins with approximately 15 pectinated setae.</paragraph>
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<paragraph pageId="3" pageNumber="42">Maxillula (Fig. 3F) lateral endite apical margin with 12 serrate RS and eight tiny serrated smaller setae; mesial endite with three long, robust, comb and two short simple setae.</paragraph>
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<paragraph pageId="3" pageNumber="42">Maxilla (Fig. 3G) lateral and middle endites each with 11 curved pectinate RS; mesial endite with several rarely plumose, long robust combs, and slender simple setae.</paragraph>
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<paragraph pageId="3" pageNumber="42">
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Maxilliped (Fig. 3H) endite mesial margin with six coupling hooks, distal margin with approximately 10 serrated and rarely plumose RS; palp article I with single RS on the inferior margin, palp articles
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<normalizedToken originalValue="II–V">II-V</normalizedToken>
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with several long simple setae on the inferior margin.
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</paragraph>
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<paragraph pageId="4" pageNumber="43">
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<pageBreakToken pageId="4" pageNumber="43" start="start">Pereopod</pageBreakToken>
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I (Fig. 3I) basis length 1.66 width, ischium superior margin with one RS on distal corner and five small RS on the medial projection; merus supradistal angle with three RS; carpus triangular, inferior margin covered with several long and short simple RS; propodus inferior margin covered with several long simple RS set in amongst some serrated RS; dactylus 9.2 times as long as basal width, inferior margin with a row of contiguous scale-like flattened setae with accessory setulae, main unguis elongate.
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</paragraph>
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<paragraph lastPageId="5" lastPageNumber="44" pageId="4" pageNumber="43">
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Pereopod II (Fig. 3J) basis about 1.8 times as long as the greatest width, superior margin with nine long distally plumose setae; ischium superior margin with five long
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<pageBreakToken pageId="5" pageNumber="44" start="start">RS</pageBreakToken>
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; merus supradistal angle with two long RS, inferior margin with nine long simple setae; carpus superior margin with five simple setae, inferior margin covered with several long and short simple RS; propodus inferior margin covered with several short, simple, acute setae, supradistal angle with two long simple and single sensory palmate setae; dactylus shorter than main unguis, with two secondary unguis.
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</paragraph>
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<caption pageId="5" pageNumber="44">
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<paragraph pageId="5" pageNumber="44">
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Figure 3.
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<taxonomicName class="Malacostraca" family="Stenasellidae" genus="Stenasellus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Stenasellus tashanicus" order="Isopoda" pageId="5" pageNumber="44" phylum="Arthropoda" rank="species" species="tashanicus">Stenasellus tashanicus</taxonomicName>
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sp. n., holotype (ZMSU 2010) A antennula B antenna C pleotelson D left mandible E palp of mandible F maxillula G maxilla H maxilliped I pereopod I J pereopod II.
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</paragraph>
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</caption>
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<paragraph pageId="5" pageNumber="44">Pereopod III (Fig. 4A) is similar to pereopod II as illustrated.</paragraph>
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<paragraph lastPageId="6" lastPageNumber="45" pageId="5" pageNumber="44">
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Pereopod VII (Fig. 4B) basis about two times as long as the greatest width, superior margin with nine long distally plumose setae;
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<taxonomicName genus="Ischium" lsidName="Ischium" pageId="5" pageNumber="44" rank="genus">Ischium</taxonomicName>
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length 2.2 width; merus supradistal angle with three long RS; carpus length 5.0 width, inferior margin covered with several long and short simple RS, supradistal angle with a long simple and a single sensory palmate setae; propodus length 7.3 width, inferior and superior margins covered with several short, simple, acute setae, supradistal angle with two long simple
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<pageBreakToken pageId="6" pageNumber="45" start="start">and</pageBreakToken>
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a single sensory palmate setae; dactylus with elongated main unguis, bearing two secondary unguis.
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</paragraph>
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<paragraph pageId="6" pageNumber="45">Penial processes (Figs 2C, 4C) elongated, cylindrical, about 5.8 times as long as the greatest width.</paragraph>
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<paragraph pageId="6" pageNumber="45">Pleopod I (Fig. 4D) protopod length 1.2 width, mesial margin with a single coupling hook, exopod elongated, mesial margin with a row of 21 PMS and four simple setae, apical margin with row of ~18 simple fine setae, lateral margin concave.</paragraph>
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<paragraph pageId="6" pageNumber="45">Pleopod II (Fig. 4E) protopod elongated, length 1.7 width, exopod article I small, without seta, article II oval, with ~ 41 PMS; endopod small, with two apical, long, simple setae; appendix masculina length 1.4 article I length, 11.4 basal length, tapering to curve acute apex.</paragraph>
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<paragraph pageId="6" pageNumber="45">Pleopod III (Fig. 4F) exopod with transverse suture, apical margin with ten slender simple setae; endopod 0.6 as long as exopod, bifurcated distally.</paragraph>
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<paragraph pageId="6" pageNumber="45">Pleopod IV (Fig. 4G) exopod with transverse suture, distolateral margin with 22 slender simple setae; endopod 0.8 as long as exopod, bifurcated distally.</paragraph>
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<paragraph pageId="6" pageNumber="45">Pleopod V (Fig. 4H) exopod and endopod subequal in length, without marginal setae.</paragraph>
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<paragraph pageId="6" pageNumber="45">Uropods (Fig. 4I) protopod and rami covered with scattered acute simple setae; endopod longer than exopod, both rami with distal tuft of setae.</paragraph>
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<caption pageId="6" pageNumber="45">
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<paragraph pageId="6" pageNumber="45">
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Figure 4.
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<taxonomicName class="Malacostraca" family="Stenasellidae" genus="Stenasellus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Stenasellus tashanicus" order="Isopoda" pageId="6" pageNumber="45" phylum="Arthropoda" rank="species" species="tashanicus">Stenasellus tashanicus</taxonomicName>
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sp. n., holotype (ZMSU 2010) A pereopod III B pereopod VII C Penial processes (left ramous)
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<normalizedToken originalValue="D–H">D-H</normalizedToken>
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pleopods
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<normalizedToken originalValue="I–V">I-V</normalizedToken>
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I Uropod.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="6" pageNumber="45" type="female">
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<paragraph pageId="6" pageNumber="45">Female.</paragraph>
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<paragraph pageId="6" pageNumber="45">(Fig. 2B) Typically, longer than the male, apart from sexual characteristics similar to male, pleotelson is broader and antenna is longer than male.</paragraph>
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</subSubSection>
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<subSubSection pageId="6" pageNumber="45" type="etymology">
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<paragraph pageId="6" pageNumber="45">Etymology.</paragraph>
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<paragraph pageId="6" pageNumber="45">The name of this species comes from the type locality, the Tashan Cave, Iran.</paragraph>
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</subSubSection>
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<subSubSection pageId="6" pageNumber="45" type="habitat">
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<paragraph pageId="6" pageNumber="45">Habitat.</paragraph>
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<paragraph pageId="6" pageNumber="45">
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The isopods were collected from two pools in the dark zone of the Tashan Cave (at 20 to 200 cm depths). They were observed in all life cycle stages. They were observed crawling on the floor and hiding inside the sediment and cavities of the pools, as well as swimming in the water column.
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<bibRefCitation author="Mousavi-Sabet, H" journalOrPublisher="FishTaxa" pageId="8" pageNumber="47" pagination="133 - 148" title="Tashan Cave a new cave fish locality for Iran; and Garratashanensis, a new blind species from the Tigris River drainage (Teleostei: Cyprinidae)." volume="1" year="2016">Mousavi-Sabet et al. (2016)</bibRefCitation>
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described a blind fish from this cave (see Fig. 1D).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="6" pageNumber="45" type="remarks">
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<paragraph pageId="6" pageNumber="45">Remarks.</paragraph>
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<paragraph pageId="6" pageNumber="45">
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<taxonomicName class="Malacostraca" family="Stenasellidae" genus="Stenasellus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Stenasellus tashanicus" order="Isopoda" pageId="6" pageNumber="45" phylum="Arthropoda" rank="species" species="tashanicus">Stenasellus tashanicus</taxonomicName>
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sp. n. can be identified by a slender and distally acute appendix masculina, and a maxilliped endite with six coupling hooks on the mesial margin. The new species is the largest known
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<taxonomicName class="Malacostraca" family="Stenasellidae" genus="Stenasellus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Stenasellus" order="Isopoda" pageId="6" pageNumber="45" phylum="Arthropoda" rank="genus">Stenasellus</taxonomicName>
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member: length up to 18 mm in males and 20 mm in females. The new species is similar to
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<taxonomicName lsidName="S. vermeuleni" pageId="6" pageNumber="45" rank="species" species="vermeuleni">S. vermeuleni</taxonomicName>
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Magniez & Stock, 2000 (known from Wadi Halban, Oman), in having an appendix masculinum with acute apex. The shape of pleopods
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<normalizedToken originalValue="III–V">III-V</normalizedToken>
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in both species is also similar. Based on the drawings and description of
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<taxonomicName lsidName="S. vermeuleni" pageId="6" pageNumber="45" rank="species" species="vermeuleni">S. vermeuleni</taxonomicName>
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, the new species differs by having a uropodal exopod smaller than the endopod (rather than subequal in length), pleopod I apical margin with a row of 18 simple fine setae (rather than six), exopodal article II of pleopod II is narrower than pleopod II in
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<taxonomicName lsidName="S. vermeuleni" pageId="6" pageNumber="45" rank="species" species="vermeuleni">S. vermeuleni</taxonomicName>
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and pleopod V exopod and endopod subequal in length (rather than a smaller exopod). Based on the description and drawings of
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<taxonomicName lsidName="S. asiaticus" pageId="6" pageNumber="45" rank="species" species="asiaticus">S. asiaticus</taxonomicName>
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by
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<bibRefCitation author="Birstein, JA" journalOrPublisher="Doklady Akademiya Nauk SSSR" pageId="7" pageNumber="46" pagination="691 - 694" title="Novyj djla SSSR rod vodjanykh osliov (Stenasellus) iz Turkmenii i ego znaceniedlja zoogeografii srednej Azii." volume="69" year="1949">Birstein and Starostin (1949)</bibRefCitation>
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from Turkmenistan, this species is readily distinguished from the new species by setose body dorsal surface (rather than smooth body surface) and its flattened appendix masculina (rather than a narrow with an acute apex).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |