155 lines
13 KiB
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155 lines
13 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.712.13066" ID-GBIF-Dataset="ada2f371-3d81-474d-a71f-1e31d7ab4bc3" ID-PMC="PMC5674202" ID-Pensoft-Pub="1313-2970-712-1" ID-PubMed="29134034" ID-ZBK="4B57033815494C6E9009F75ED683D946" ModsDocAuthor="" ModsDocDate="2017" ModsDocID="1313-2970-712-1" ModsDocOrigin="ZooKeys 712" ModsDocTitle="At home at least: the taxonomic position of some north African Xerocrassa species (Pulmonata, Geomitridae)" checkinTime="1509030619456" checkinUser="pensoft" docAuthor="Ezzine, Issaad Kawther, Pfarrer, Beat, Dimassi, Najet, Said, Khaled & Neubert, Eike" docDate="2017" docId="C80B8C74CB0B51CEBBF8610F9D722775" docLanguage="en" docName="ZooKeys 712: 1-27" docOrigin="ZooKeys 712" docSource="http://dx.doi.org/10.3897/zookeys.712.13066" docTitle="Xerocrassa latasteopsis Letourneux & Bourguignat 1887" docType="treatment" docVersion="4" lastPageNumber="6" masterDocId="5426FF9D956DA822FF84FFB4FFBBFFA0" masterDocTitle="At home at least: the taxonomic position of some north African Xerocrassa species (Pulmonata, Geomitridae)" masterLastPageNumber="27" masterPageNumber="1" pageNumber="4" updateTime="1668165028763" 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>At home at least: the taxonomic position of some north African Xerocrassa species (Pulmonata, Geomitridae)</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>Ezzine, Issaad Kawther</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>Pfarrer, Beat</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>Dimassi, Najet</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>Said, Khaled</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>Neubert, Eike</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>2017</mods:date>
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<mods:detail type="volume">
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<mods:number>712</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>27</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.712.13066</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.712.13066</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-712-1</mods:identifier>
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<mods:identifier type="ZBK">4B57033815494C6E9009F75ED683D946</mods:identifier>
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<mods:identifier type="ZooBank">4B57033815494C6E9009F75ED683D946</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="135476459" LSID="urn:lsid:plazi:treatment:C80B8C74CB0B51CEBBF8610F9D722775" httpUri="http://treatment.plazi.org/id/C80B8C74CB0B51CEBBF8610F9D722775" lastPageId="5" lastPageNumber="6" pageId="3" pageNumber="4">
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<subSubSection pageId="3" pageNumber="4" type="nomenclature">
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<paragraph pageId="3" pageNumber="4">
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<taxonomicName authority="Letourneux & Bourguignat, 1887" authorityName="Letourneux & Bourguignat" authorityYear="1887" class="Gastropoda" family="Geomitridae" genus="Xerocrassa" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Xerocrassa latasteopsis" order="Pulmonata" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="latasteopsis">Xerocrassa latasteopsis (Letourneux & Bourguignat, 1887)</taxonomicName>
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Figs 2, 3, 5-6
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="reference_group">
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<paragraph pageId="3" pageNumber="4">
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1887
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<taxonomicName class="Gastropoda" family="Geomitridae" genus="Helix" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Helix latasteopsis" order="Pulmonata" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="latasteopsis">Helix latasteopsis</taxonomicName>
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Letourneux & Bourguignat, Prodrome de la malacologie terrestre et fluviatile de la Tunisie: 63 [Foum-Hallouf et
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<normalizedToken originalValue="à">a</normalizedToken>
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Ras-ed-Djerf, vis-a-vis de Djerba].
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="type specimens">
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<paragraph pageId="3" pageNumber="4">Type specimens.</paragraph>
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<paragraph pageId="3" pageNumber="4">
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<taxonomicName class="Polychaeta" family="Phyllodocidae" genus="Eulalia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eulalia latasteopsis" order="Phyllodocida" pageId="3" pageNumber="4" phylum="Annelida" rank="species" species="latasteopsis">latasteopsis</taxonomicName>
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: Foum Hallouf MHNG-MOLL 115131/1 here selected as lectotype [hic!]. paralectotype: Ras-ed-Djerf MHNG-MOLL 115130/1.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="additional specimens">
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<paragraph pageId="3" pageNumber="4">Additional specimens.</paragraph>
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<paragraph pageId="3" pageNumber="4">
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Oasis NE of Tozeur, 10.12.2015, leg. Ezzine,
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<geoCoordinate direction="north" orientation="latitude" precision="5" value="33.9672">33.9672°N</geoCoordinate>
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<geoCoordinate direction="east" orientation="longitude" precision="5" value="8.0421">8.0421°E</geoCoordinate>
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, NMBE 541953/1; Bou Hedma, 3.3.2006, leg. I. Abbes, NMBE 551321/X; Oued Medzesar MHNG-MOLL 115122/1; Ksar Sidi Aich 1, Gafsa, 29.4.2014, leg. Ezzine, NMBE 549849/1, 549848/1, 549847/1; Ksar Sidi Aich 2, Gafsa,
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<geoCoordinate direction="north" orientation="latitude" precision="5" value="34.7061">34.7061°N</geoCoordinate>
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<geoCoordinate direction="east" orientation="longitude" precision="5" value="8.7972">8.7972°E</geoCoordinate>
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, 9.12.2015, leg. Ezzine, NMBE 549906/1, 549846/1, 547177/1, 541954/1; (Ksar Sidi Aich 1 is located ca. 200 m east of Ksar Sidi Aich 2); Henchir el Zitouna, Medenine, 10.2016, leg. Ezzine, NMBE 551301/9, 551293/6, 551291/1, 551290/1, 551289/1, 551288/1, 549854/1. - Additional specimens in coll. Ezzine/Monastir.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="diagnosis">
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<paragraph pageId="3" pageNumber="4">Diagnosis.</paragraph>
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<paragraph pageId="3" pageNumber="4">Shell creamy white throughout, upper teleoconch whorls with fine axial riblets, last whorl almost smooth, umbilicus open, narrow.</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="4" type="description">
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<paragraph pageId="3" pageNumber="4">Description.</paragraph>
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<paragraph pageId="3" pageNumber="4">
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Shell medium sized, depressed, creamy white with irregularly dispersed opaque spots, shell walls thick; protoconch very small, brownish to blackish, smooth, consisting of
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<normalizedToken originalValue="1½">11/2</normalizedToken>
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whorls; teleoconch consisting of up to 6 whorls, upper teleoconch whorls with fine axial riblets and a regular pattern of brownish axial flames fading out as subsutural dots; riblets becoming obsolete on the median teleoconch whorls, last whorl almost smooth with irregular rugosities; suture deep; aperture sub-spherical, slightly descending; umbilicus open, narrow, conical.
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</paragraph>
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<paragraph pageId="3" pageNumber="4">Genital anatomy. The genital anatomy of two adults specimens collected in Henchir el Zitouna and Sidi Aich 2 are illustrated.</paragraph>
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<paragraph pageId="3" pageNumber="4">Male part. penis club-shaped, thick, with a solid ring-like structure formed by the basis of the penial papilla; epiphallus longer than penis; penial retractor muscle inserting somewhat distal to the boundary between penis and epiphallus, muscle fascia weak; flagellum very short; penial papilla cone shaped, simple, with 2-3 small folds with a central pore at its tip.</paragraph>
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<paragraph pageId="3" pageNumber="4">Genital atrium. Expanded sac-like structure, with a strongly developed stimulator tissue. The stimulator consists of a thick and tightly upfolded part, connected to the internal tissue cone. The internal tissue cone is fleshy, solid, formed like a stick, and not fully separated from the stimulator.</paragraph>
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<paragraph pageId="3" pageNumber="4">Female part. Dart sacs in opposite position, very small; glandulae mucosae simple, tubes randomly attached on the vaginal wall between dart sacs and pedunculus; vagina long, pedunculus not strongly developed.</paragraph>
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<paragraph pageId="3" pageNumber="4">Measurements. Lectotype: H = 14.5 mm; D = 18.34 mm; PH = 9.93 mm; PD = 9.4 mm; W = 6.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="5" lastPageNumber="6" pageId="3" pageNumber="4" type="distribution">
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<paragraph pageId="3" pageNumber="4">Distribution</paragraph>
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<paragraph lastPageId="5" lastPageNumber="6" pageId="3" pageNumber="4">
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(Fig. 2). This species is known from southeastern Tunisia in the areas north and south of the Chott el Jerid. It also occurs in the Bou Hedma National Park
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<pageBreakToken pageId="4" pageNumber="5" start="start">in</pageBreakToken>
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central Tunisia, where it obviously comes close to
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<taxonomicName lsidName="H. latastei" pageId="4" pageNumber="5" rank="species" species="latastei">H. latastei</taxonomicName>
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. Our records from Bou Hedma National Park originate from two different sources, and the exact collecting sites are not known. A sympatric occurrence cannot be excluded. The type locality Foum Hallouf as given by Letourneux and Bourguignat is also imprecise, this term is used for a larger area east of the small hill chain between Dkhilet Toujane and Beharya;
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<pageBreakToken pageId="5" pageNumber="6" start="start">the</pageBreakToken>
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locality Henchir el Zitouna is situated in the centre of this area, so these specimens can be considered as topotypes (Fig. 2).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="6" type="remarks">
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<paragraph pageId="5" pageNumber="6">Remarks.</paragraph>
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<paragraph pageId="5" pageNumber="6">
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Besides the genetic difference observed (see Figs 8, 9), there are also slight differences found in the morphology of both, shells, and genital organs. The shell of
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<taxonomicName lsidName="X. latasteopsis" pageId="5" pageNumber="6" rank="species" species="latasteopsis">X. latasteopsis</taxonomicName>
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is always white (with up to five brown spiral bands in
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<taxonomicName lsidName="X. latastei" pageId="5" pageNumber="6" rank="species" species="latastei">X. latastei</taxonomicName>
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), the riblets are fine (much stronger in
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<taxonomicName lsidName="X. latastei" pageId="5" pageNumber="6" rank="species" species="latastei">X. latastei</taxonomicName>
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), the lower whorls are smooth and a bit wrinkled (ribbed throughout in
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<taxonomicName lsidName="X. latastei" pageId="5" pageNumber="6" rank="species" species="latastei">X. latastei</taxonomicName>
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), and the umbilicus is narrow (somewhat larger in
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<taxonomicName lsidName="X. latastei" pageId="5" pageNumber="6" rank="species" species="latastei">X. latastei</taxonomicName>
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). The penial papilla is short conical in
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<taxonomicName lsidName="X. latasteopsis" pageId="5" pageNumber="6" rank="species" species="latasteopsis">X. latasteopsis</taxonomicName>
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(elongate in
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<taxonomicName lsidName="X. latastei" pageId="5" pageNumber="6" rank="species" species="latastei">X. latastei</taxonomicName>
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), and the flagellum is short if compared to the epiphallus (longer in
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<taxonomicName lsidName="X. latastei" pageId="5" pageNumber="6" rank="species" species="latastei">X. latastei</taxonomicName>
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).
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</paragraph>
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<paragraph pageId="5" pageNumber="6">
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When describing their
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<taxonomicName class="Gastropoda" family="Helicidae" genus="Helix" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Helix latastei" order="Stylommatophora" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="latastei">Helix latastei</taxonomicName>
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, Letourneux and Bourguignat mentioned several localities for this species from Algeria. However, it turned out that these localities had been mentioned earlier by Bourguignat in his description of
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<taxonomicName class="Gastropoda" family="Helicidae" genus="Helix" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Helix lacertarum" order="Stylommatophora" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="lacertarum">Helix lacertarum</taxonomicName>
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in 1863. Obviously, Letourneux and Bourguignat in 1887 considered both nominal species to be conspecific without clearly stating this opinion. After examination of all specimens in the collection of Bourguignat we come to the conclusion that, for the time being, the Algerian shells have to be considered as a separate species.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |