124 lines
14 KiB
XML
124 lines
14 KiB
XML
<document id="892C8C452E269CF745EBF02C68B4C47A" ID-DOI="10.11646/zootaxa.4094.1.1" ID-GBIF-Dataset="60d01d07-7735-4a32-9292-82ead909e804" ID-ISSN="1175-5326" ID-Zenodo-Dep="266544" ID-ZooBank="E5F1E766-687D-4B00-974B-8D7939DC66A0" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1459242848466" checkinUser="plazi" docAuthor="David G. Herbert & Adnan Mousalli" docDate="2016" docId="03E687FCE01CD756FF1A11F50E9C9C22" docLanguage="en" docName="zootaxa.4094.1.pdf.imf" docOrigin="Zootaxa 4094 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Nata Watson 1934" docType="treatment" docVersion="10" lastPageNumber="18" masterDocId="FFDFFF84E00DD747FF8D116D0B0A9828" masterDocTitle="Revision of the dwarf cannibal snails (Nata s. l.) of southern Africa — Nata s. s. and Natella (Mollusca: Gastropoda: Rhytididae), with description of three new species" masterLastPageNumber="67" masterPageNumber="1" pageNumber="18" updateTime="1698186665173" updateUser="plazi">
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<mods:titleInfo id="73C41DB4FFDDF20861D1C53DB8A96B7D">
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<mods:title id="839B1FA2E09B0867278D97A0029A8FD1">Revision of the dwarf cannibal snails (Nata s. l.) of southern Africa — Nata s. s. and Natella (Mollusca: Gastropoda: Rhytididae), with description of three new species</mods:title>
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<mods:name id="9D7DC21286BC8B6A29AA072A83F0EFF6" type="personal">
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<mods:namePart id="21C73D3D59CFF7E96270A62E158F7900">David G. Herbert</mods:namePart>
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<mods:name id="3C2E0C147648F8CF20F00F51B790CF8D" type="personal">
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<mods:roleTerm id="B61960031358AA206449812C3EE04C78">Author</mods:roleTerm>
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<mods:namePart id="4A52014A2CE7071AD4E4BC53566E5C5F">Adnan Mousalli</mods:namePart>
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<mods:typeOfResource id="1C81EA4A71D23B097C97822FD836779A">text</mods:typeOfResource>
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<mods:title id="DD9C21787FFA9ED6C7AEF6311E58DFE7">Zootaxa</mods:title>
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<mods:part id="CB6AD44603FE7BD81430E7A69FC97E0A">
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<mods:date id="CDFC1447BC0681F1C44A2CB264476E1C">2016</mods:date>
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<mods:detail id="3326571BBC32161B9297AC3917992095" type="volume">
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<mods:number id="5B03D53011B71C386CCF953836A6801C">4094</mods:number>
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<mods:identifier id="6EF024B3218A7DE19DB7E2CCE426F834" type="DOI">10.11646/zootaxa.4094.1.1</mods:identifier>
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<treatment id="03E687FCE01CD756FF1A11F50E9C9C22" ID-DOI="http://doi.org/10.5281/zenodo.5615839" ID-GBIF-Taxon="119319678" ID-Zenodo-Dep="5615839" LSID="urn:lsid:plazi:treatment:03E687FCE01CD756FF1A11F50E9C9C22" httpUri="http://treatment.plazi.org/id/03E687FCE01CD756FF1A11F50E9C9C22" lastPageNumber="18" pageId="17" pageNumber="18">
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<subSubSection id="C3556561E01CD756FF1A11F50ADD989A" box="[151,471,151,178]" pageId="17" pageNumber="18" type="nomenclature">
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<paragraph id="8BF036EAE01CD756FF1A11F50ADD989A" blockId="17.[151,471,151,178]" box="[151,471,151,178]" pageId="17" pageNumber="18">
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<heading id="D0B88186E01CD756FF1A11F50ADD989A" bold="true" box="[151,471,151,178]" fontSize="11" level="1" pageId="17" pageNumber="18" reason="1">
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<emphasis id="B93BEAF8E01CD756FF1A11F50ADD989A" bold="true" box="[151,471,151,178]" pageId="17" pageNumber="18">
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Genus
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<taxonomicName id="4C4F4D69E01CD756FF6311FA0ADD989A" authority="Watson, 1934" authorityName="Watson" authorityYear="1934" box="[238,471,151,178]" class="Gastropoda" family="Rhytididae" genus="Nata" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pulmonata" pageId="17" pageNumber="18" phylum="Mollusca" rank="genus">
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<emphasis id="B93BEAF8E01CD756FF6311FA0A239899" bold="true" box="[238,297,151,177]" italics="true" pageId="17" pageNumber="18">Nata</emphasis>
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<bibRefCitation id="EFDE4B1BE01CD756FEA211F50ADD989A" author="Watson" box="[303,471,152,178]" pageId="17" pageNumber="59" refString="Watson, H. (1934) Natalina and other South African snails. Proceedings of the Malacological Society of London, 21, 150 - 193." type="journal article" year="1934">Watson, 1934</bibRefCitation>
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</taxonomicName>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C3556561E01CD756FF1A118D0FAB98DC" box="[151,1185,222,245]" pageId="17" pageNumber="18" type="reference_group">
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<paragraph id="8BF036EAE01CD756FF1A118D0FAB98DC" blockId="17.[151,1185,222,245]" box="[151,1185,222,245]" pageId="17" pageNumber="18">
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<treatmentCitationGroup id="AB5F11C4E01CD756FF1A118D0FAB98DC" box="[151,1185,222,245]" pageId="17" pageNumber="18">
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<taxonomicName id="4C4F4D69E01CD756FF1A118D0A8598DC" authority="Watson, 1934: 158" authorityName="Watson" authorityPageNumber="158" authorityYear="1934" box="[151,399,222,245]" class="Gastropoda" family="Rhytididae" genus="Nata" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pulmonata" pageId="17" pageNumber="18" phylum="Mollusca" rank="genus">
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<emphasis id="B93BEAF8E01CD756FF1A118D0BC398DD" box="[151,201,224,245]" italics="true" pageId="17" pageNumber="18">Nata</emphasis>
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<treatmentCitation id="0AEE10FBE01CD756FF4311B20A8598DC" author="Watson" box="[206,399,222,244]" page="158" pageId="17" pageNumber="18" year="1934">
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<bibRefCitation id="EFDE4B1BE01CD756FF4311B20A5698DC" author="Watson" box="[206,348,222,244]" pageId="17" pageNumber="59" refString="Watson, H. (1934) Natalina and other South African snails. Proceedings of the Malacological Society of London, 21, 150 - 193." type="journal article" year="1934">Watson, 1934</bibRefCitation>
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: 158
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</treatmentCitation>
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</taxonomicName>
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.
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<typeStatus id="54F48848E01CD756FE1411B20AC198DC" box="[409,459,223,244]" pageId="17" pageNumber="18">Type</typeStatus>
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species (by original designation):
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<taxonomicName id="4C4F4D69E01CD756FCA511B30F9798DC" ID-CoL="45T9T" authority="Connolly, 1912" authorityName="Connolly" authorityYear="1912" box="[808,1181,222,244]" class="Gastropoda" family="Rhytididae" genus="Natalina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="17" pageNumber="18" phylum="Mollusca" rank="species" species="tarachodes">
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<emphasis id="B93BEAF8E01CD756FCA511B308F298DC" box="[808,1016,222,244]" italics="true" pageId="17" pageNumber="18">Natalina tarachodes</emphasis>
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<bibRefCitation id="EFDE4B1BE01CD756FC7311B30F9798DC" author="Connolly" box="[1022,1181,222,244]" pageId="17" pageNumber="57" refString="Connolly, M. (1912) Revised reference list of South African non-marine Mollusca; with descriptions of new species in the South African Museum. Annals of the South African Museum, 11, 9 - 306. http: // dx. doi. org / 10.5962 / bhl. title. 11477" type="journal article" year="1912">Connolly, 1912</bibRefCitation>
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</taxonomicName>
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.
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</treatmentCitationGroup>
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</paragraph>
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</subSubSection>
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<subSubSection id="C3556561E01CD756FF1A104C0AA29B26" pageId="17" pageNumber="18" type="diagnosis">
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<paragraph id="8BF036EAE01CD756FF1A104C0BD99A39" blockId="17.[151,1437,289,1034]" pageId="17" pageNumber="18">
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<emphasis id="B93BEAF8E01CD756FF1A104C0A1B9912" bold="true" box="[151,273,289,314]" pageId="17" pageNumber="18">Diagnosis.</emphasis>
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Shell small to moderate in size (adult diameter
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<quantity id="4CB79B0FE01CD756FCC9104C08BC9911" box="[836,950,289,314]" metricMagnitude="-2" metricUnit="m" metricValue="1.55" metricValueMax="2.5" metricValueMin="0.6" pageId="17" pageNumber="18" unit="mm" value="15.5" valueMax="25.0" valueMin="6.0">6–25 mm</quantity>
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), thin, subglobose to discoidal, yellowishbrown to honey-brown, frequently with uneven darker axial bands, but lacking spiral colour pattern; apical surface with close-set axial (collabral) riblets or smooth, sculptured only by weak growth-lines, spiral sculpture mostly lacking; usually glossy, occasionally lustreless; base generally smoother and more glossy; peristome interrupted in parietal region; outer lip thin with membranous periostracal fringe, never thickened; umbilicus open, width moderate to wide; protoconch smooth, comprising 1.0–1.25 whorls, diameter
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<quantity id="4CB79B0FE01CD756FB9B10B80F9599C5" box="[1046,1183,469,494]" metricMagnitude="-3" metricUnit="m" metricValue="1.65" metricValueMax="2.6" metricValueMin="0.7" pageId="17" pageNumber="18" unit="mm" value="1.65" valueMax="2.6" valueMin="0.7">0.7–2.6 mm</quantity>
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(rarely more than 2.0 mm).
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</paragraph>
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<paragraph id="8BF036EAE01CD756FF4A13700AA29B26" blockId="17.[151,1437,289,1034]" pageId="17" pageNumber="18">Radula beloglossan, but tooth morphology variable; labial palps not evident; epiphallus present but usually small, inserting laterally into penis; penis lumen papillate, epiphallus pore may be somewhat raised or surrounded by a flange-like disc, but a verge-like structure is absent; retractor muscle of right optic tentacle passes to left of penis; vas deferens reflexed, passing down penis then back along free oviduct; vagina short or absent; bursa copulatrix duct broader basally; no oviduct caecum present; atrial diverticulum sometimes present; kidney trigonal, primary ureter reflexed around anterior of kidney; suprapedal mucus gland not convoluted, the posterior portion lacking glandular tissue.</paragraph>
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</subSubSection>
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<subSubSection id="C3556561E01CD756FF4A12740E9C9C22" pageId="17" pageNumber="18" type="discussion">
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<paragraph id="8BF036EAE01CD756FF4A127409AA9BB5" blockId="17.[151,1437,289,1034]" pageId="17" pageNumber="18">
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<emphasis id="B93BEAF8E01CD756FF4A12740A319B1A" bold="true" box="[199,315,793,818]" pageId="17" pageNumber="18">Remarks.</emphasis>
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<collectingCountry id="F358767AE01CD756FEC812770A6E9B1A" box="[325,356,794,818]" name="American Samoa" pageId="17" pageNumber="18">As</collectingCountry>
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indicated in the Introduction, following our previous work (
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<bibRefCitation id="EFDE4B1BE01CD756FBA612740E6E9B1A" author="Moussalli" box="[1067,1380,793,818]" pageId="17" pageNumber="58" refString="Moussalli, A. & Herbert, D. G. (2016) Deep molecular divergence and exceptional morphological stasis in dwarf cannibal snails Nata sensu lato Watson, 1934 (Rhytididae) of southern Africa. Molecular Phylogenetics and Evolution, 95, 100 - 115. http: // dx. doi. org / 10.1016 / j. ympev. 2015.11.003" type="journal article" year="2016">Moussalli & Herbert 2016</bibRefCitation>
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), we employ the genus
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<taxonomicName id="4C4F4D69E01CD756FEF612530AB89B7D" box="[379,434,830,853]" class="Gastropoda" family="Rhytididae" genus="Nata" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pulmonata" pageId="17" pageNumber="18" phylum="Mollusca" rank="genus">
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<emphasis id="B93BEAF8E01CD756FEF612530AB89B7D" box="[379,434,830,853]" italics="true" pageId="17" pageNumber="18">Nata</emphasis>
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</taxonomicName>
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in a restricted sense, and treat
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<taxonomicName id="4C4F4D69E01CD756FCCC1250089E9B7E" box="[833,916,829,854]" class="Gastropoda" family="Rhytididae" genus="Natella" higherTaxonomySource="CoL" kingdom="Animalia" order="Stylommatophora" pageId="17" pageNumber="18" phylum="Mollusca" rank="genus">
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<emphasis id="B93BEAF8E01CD756FCCC1250089E9B7E" box="[833,916,829,854]" italics="true" pageId="17" pageNumber="18">Natella</emphasis>
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</taxonomicName>
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as a separate genus. There are significant morphological differences between the two and molecular data demonstrate that
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<taxonomicName id="4C4F4D69E01CD756FBD8120C0FAD9B52" box="[1109,1191,865,890]" class="Gastropoda" family="Rhytididae" genus="Natella" higherTaxonomySource="CoL" kingdom="Animalia" order="Stylommatophora" pageId="17" pageNumber="18" phylum="Mollusca" rank="genus">
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<emphasis id="B93BEAF8E01CD756FBD8120C0FAD9B52" box="[1109,1191,865,890]" italics="true" pageId="17" pageNumber="18">Natella</emphasis>
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</taxonomicName>
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constitutes a deeply divergent, basal lineage within the
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<taxonomicName id="4C4F4D69E01CD756FD9312E809939BB6" box="[542,665,901,926]" class="Gastropoda" family="Rhytididae" kingdom="Animalia" order="Stylommatophora" pageId="17" pageNumber="18" phylum="Mollusca" rank="family">Rhytididae</taxonomicName>
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.
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</paragraph>
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<paragraph id="8BF036EAE01CD756FF4A12C70E9C9C22" blockId="17.[151,1437,289,1034]" pageId="17" pageNumber="18">
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<taxonomicName id="4C4F4D69E01CD756FF4A12C70BF79BE9" box="[199,253,938,961]" class="Gastropoda" family="Rhytididae" genus="Nata" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pulmonata" pageId="17" pageNumber="18" phylum="Mollusca" rank="genus">
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<emphasis id="B93BEAF8E01CD756FF4A12C70BF79BE9" box="[199,253,938,961]" italics="true" pageId="17" pageNumber="18">Nata</emphasis>
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</taxonomicName>
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is endemic to southern Africa, occurring mostly to the south and east of the Great Escarpment and ranging from the south-western Cape to the Soutpansberg in Limpopo (23°S) and Inhambane in southern
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<collectingCountry id="F358767AE01CD756FF1A129C0A219C22" box="[151,299,1009,1034]" name="Mozambique" pageId="17" pageNumber="18">Mozambique</collectingCountry>
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(24°S). The range of one species also extends into the Highveld of Gauteng, Free State and
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<collectingCountry id="F358767AE01CD756FAB9129C0E989C22" box="[1332,1426,1009,1034]" name="Lesotho" pageId="17" pageNumber="18">Lesotho</collectingCountry>
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.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |