treatments-xml/data/23/B6/86/23B68695676C52EEA324995D0CAAD907.xml

<document ID-DOI="http://dx.doi.org/10.3897/zookeys.1147.93824" ID-Pensoft-Pub="1313-2970-1147-1" ID-Pensoft-UUID="FF2B6B317B505F9EA0E1000BDCD16CE7" ID-ZooBank="9BB9881B0076473D8E53155D37CA1F50" ModsDocID="1313-2970-1147-1" checkinTime="1676378625502" checkinUser="pensoft" docAuthor="Pall-Gergely, Barna, Hunyadi, Andras, Vermeulen, Jaap J., Grego, Jozef, Sutcharit, Chirasak, Reischuetz, Alexander, Dumrongrojwattana, Pongrat, Botta-Dukat, Zoltan, Oerstan, Aydin, Fekete, Judit &amp; Jochum, Adrienne" docDate="2023" docId="23B68695676C52EEA324995D0CAAD907" docLanguage="en" docName="ZooKeys 1147: 1-177" docOrigin="ZooKeys 1147" docPubDate="2023-02-13" docSource="http://dx.doi.org/10.3897/zookeys.1147.93824" docTitle="Angustopila fratermajor Pall-Gergely &amp; Vermeulen 2023, sp. nov." docType="treatment" docUuid="12980F6D-6003-44A5-9734-A81BC10C2CA6" docUuidSource="ZooBank" docVersion="1" id="FF2B6B317B505F9EA0E1000BDCD16CE7" lastPageNumber="1" masterDocId="FF2B6B317B505F9EA0E1000BDCD16CE7" masterDocTitle="Five times over: 42 new Angustopila species highlight Southeast Asia's rich biodiversity (Gastropoda, Stylommatophora, Hypselostomatidae)" masterLastPageNumber="177" masterPageNumber="1" pageNumber="1" updateTime="1676378625502" updateUser="pensoft">
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<mods:titleInfo>
<mods:title>Five times over: 42 new Angustopila species highlight Southeast Asia's rich biodiversity (Gastropoda, Stylommatophora, Hypselostomatidae)</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Pall-Gergely, Barna</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-6167-7221</mods:nameIdentifier>
<mods:affiliation>Centre for Agricultural Research, Plant Protection Institute, Eoetvoes Lorand Research Network, Herman Otto ut 15, H- 1022 Budapest, Hungary</mods:affiliation>
<mods:nameIdentifier type="email">pallgergely2@gmail.com</mods:nameIdentifier>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Hunyadi, Andras</mods:namePart>
<mods:affiliation>Adria setany 10 G 2 / 5., H- 1148 Budapest, Hungary</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Vermeulen, Jaap J.</mods:namePart>
<mods:affiliation>JK Art and Science, Lauwerbes 8, 2318 AT Leiden, Netherlands</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Grego, Jozef</mods:namePart>
<mods:affiliation>Horna Micina 219, SK- 97401 Banska Bystrica, Slovakia</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Sutcharit, Chirasak</mods:namePart>
<mods:affiliation>Animal Systematic Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Reischuetz, Alexander</mods:namePart>
<mods:affiliation>Puechhaimgasse 52, A- 3580 Horn, Austria</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Dumrongrojwattana, Pongrat</mods:namePart>
<mods:affiliation>Department of Biology, Faculty of Science, Burapha University, 169 Longhardbangsaen Road, Muang District, Chonburi, 20131, Thailand</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Botta-Dukat, Zoltan</mods:namePart>
<mods:affiliation>Centre for Ecological Research, Institute of Ecology and Botany, Alkotmany 2 - 4, H- 2600, Vacratot, Hungary</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Oerstan, Aydin</mods:namePart>
<mods:affiliation>12501 Milestone Manor Lane, Germantown, Maryland, 20876, USA</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Fekete, Judit</mods:namePart>
<mods:affiliation>University of Pannonia, Centre of Natural Science, Research Group of Limnology, Egyetem u. 10, H- 8200 Veszprem, Hungary &amp; Centre for Ecological Research, Institute of Aquatic Ecology, Department of Tisza Research, 18 / c Bem square, H- 4026 Debrecen, Hungary</mods:affiliation>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Jochum, Adrienne</mods:namePart>
<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0002-6624-6412</mods:nameIdentifier>
<mods:affiliation>Naturhistorisches Museum der Burgergemeinde Bern, CH- 3005 Bern, Switzerland &amp; Institute of Ecology and Evolution, University of Bern, CH- 3012 Bern, Switzerland &amp; Senckenberg Forschungsinstitut und Naturmuseum, 60325 Frankfurt am Main, Germany</mods:affiliation>
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<mods:title>ZooKeys</mods:title>
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<mods:date>2023</mods:date>
<mods:detail type="pubDate">
<mods:number>2023-02-13</mods:number>
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<mods:detail type="volume">
<mods:number>1147</mods:number>
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<mods:start>1</mods:start>
<mods:end>177</mods:end>
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<mods:url>http://dx.doi.org/10.3897/zookeys.1147.93824</mods:url>
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<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.1147.93824</mods:identifier>
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<treatment LSID="urn:lsid:zoobank.org:act:12980F6D-6003-44A5-9734-A81BC10C2CA6" httpUri="http://treatment.plazi.org/id/23B68695676C52EEA324995D0CAAD907" lastPageNumber="1" pageId="0" pageNumber="1">
<subSubSection pageId="0" pageNumber="1" type="nomenclature">
<paragraph pageId="0" pageNumber="1">
<taxonomicName LSID="https://zoobank.org/12980F6D-6003-44A5-9734-A81BC10C2CA6" authority="Páll-Gergely &amp; Vermeulen" authorityName="Pall-Gergely &amp; Vermeulen" authorityYear="2023" class="Gastropoda" family="Gastrocoptidae" genus="Angustopila" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Angustopila fratermajor" order="Stylommatophora" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="fratermajor" status="sp. nov.">
Angustopila fratermajor 
<normalizedToken originalValue="Páll-Gergely">Pall-Gergely</normalizedToken>
&amp; Vermeulen
</taxonomicName>
<taxonomicNameLabel pageId="0" pageNumber="1">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">
<figureCitation captionStart="Figure 43" captionStartId="F43" captionText="Figure 43. Angustopila fratermajor Pall-Gergely &amp; Vermeulen, sp. nov., paratype (A) and holotype (HNHM 105286), JJV 17605 (B-I). Apertural (A, B), lateral (C), apical (D) and ventral (E) sides of the shell; aperture (G), microstructure of the protoconch (F), ventral (H) and frontal (I) surface of the body whorl." figureDoi="10.3897/zookeys.1147.93824.figure43" httpUri="https://binary.pensoft.net/fig/808852" pageId="0" pageNumber="1">Fig. 43</figureCitation>
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="type material">
<paragraph pageId="0" pageNumber="1">Type material.</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Holotype</emphasis>
: Vietnam • 1 empty shell (H: 0.84 mm, D: 0.8 mm); Haiphong Province, Cat Ba Island, large, somewhat disturbed, active cave with speleothems; 
<geoCoordinate degrees="20" direction="north" minutes="50.06" orientation="latitude" precision="9" value="20.834333">20°50.06'N</geoCoordinate>
, 
<geoCoordinate degrees="106" direction="east" minutes="55.91" orientation="longitude" precision="9" value="106.93183">106°55.91'E</geoCoordinate>
; 0-50 m a.s.l.; 7 Jun. 2017; J.J. Vermeulen &amp; K. Anker leg.; HNHM 105286 (original inventory number: JJV 16605).
</paragraph>
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" italics="true" pageId="0" pageNumber="1">Paratypes</emphasis>
: Vietnam • 68 shells; same data as for holotype; JJV 17658 (ex JJV 17605) • 10 shells; Quang Ninh Province, Halong-Campha area, 4.5 km SW Quang Hanh, limestone hill with regrowth; 
<geoCoordinate degrees="20" direction="north" minutes="58.98" orientation="latitude" precision="9" value="20.983">20°58.98'N</geoCoordinate>
, 
<geoCoordinate degrees="107" direction="east" minutes="11.83" orientation="longitude" precision="9" value="107.19717">107°11.83'E</geoCoordinate>
; 29 Sep. 1998; J.J. Vermeulen &amp; A.J. Whitten leg.; JJV 6267 • 37 shells (one of them is figured: Fig. 
<figureCitation captionStart="Figure 99" captionStartId="F99" captionText="Figure 99. Six sympatric Angustopila species collected at Hang Lo Cao Khang Chi ến (Thanh Hoa Province, Vietnam) A synoptic photo of shells of all 6 species B A. fabella Pall-Gergely &amp; Hunyadi, 2015 C A. tetradon Pall-Gergely &amp; Hunyadi, sp. nov. D A. papaver Pall-Gergely &amp; Hunyadi, sp. nov. E A. parallela Pall-Gergely &amp; Hunyadi, sp. nov. F A. szekeresi Pall-Gergely &amp; Hunyadi, 2015 G A. antidomedon Pall-Gergely &amp; Hunyadi, sp. nov." figureDoi="10.3897/zookeys.1147.93824.figure99" httpUri="https://binary.pensoft.net/fig/808908" pageId="0" pageNumber="1">99E</figureCitation>
); Haiphong Province, Cat Ba Island, Cave Qua Vang, inside cave, large, ecologically intact active cave with speleothems; 
<geoCoordinate degrees="20" direction="north" minutes="48.64" orientation="latitude" precision="9" value="20.810667">20°48.64'N</geoCoordinate>
, 
<geoCoordinate degrees="107" direction="east" minutes="04.64" orientation="longitude" precision="9" value="107.07733">107°04.64'E</geoCoordinate>
; 60 m a.s.l.; 6 Jun. 2017; J.J. Vermeulen &amp; K. Anker leg.; JJV 16600 • 8 shells; Haiphong Province, Cat Ba Island, Cave Qua Vang, around cave entrance, rocky limestone slope with low, somewhat mature forest; 
<geoCoordinate degrees="20" direction="north" minutes="48.64" orientation="latitude" precision="9" value="20.810667">20°48.64'N</geoCoordinate>
, 
<geoCoordinate degrees="107" direction="east" minutes="04.64" orientation="longitude" precision="9" value="107.07733">107°04.64'E</geoCoordinate>
; 100 m a.s.l.; 6 Jun. 2017; J.J. Vermeulen &amp; K. Anker leg.; JJV 18866 (ex JJV 16604) • 41 shells; Haiphong Province, Cat Ba Island, Cave Hoa Cuong, inside cave, polluted cave disturbed by tourism, with concrete paths; 
<geoCoordinate degrees="20" direction="north" minutes="50.41" orientation="latitude" precision="9" value="20.840166">20°50.41'N</geoCoordinate>
, 
<geoCoordinate degrees="106" direction="east" minutes="59.15" orientation="longitude" precision="9" value="106.98583">106°59.15'E</geoCoordinate>
; 50 m a.s.l.; 5 Jun. 2017; J.J. Vermeulen &amp; K. Anker leg.; JJV 16593 • 3 shells (one of them is corroded); Haiphong Province, Cat Ba Island, Cave Xa Bac, inside cave; 
<geoCoordinate degrees="20" direction="north" minutes="50.07" orientation="latitude" precision="9" value="20.8345">20°50.07'N</geoCoordinate>
, 
<geoCoordinate degrees="106" direction="east" minutes="58.61" orientation="longitude" precision="9" value="106.97684">106°58.61'E</geoCoordinate>
; 9 Jun. 2017; J.J. Vermeulen &amp; K. Anker leg.; JJV 16606 • 13 shells; Quang Ninh Province, Halong Bay area, unnamed island 1.8 km west of the southernmost point of Cong Tai Island, Steep limestone slope bordering beach, dense vegetation; 
<geoCoordinate degrees="20" direction="north" minutes="52.43" orientation="latitude" precision="9" value="20.873833">20°52.43'N</geoCoordinate>
, 
<geoCoordinate degrees="107" direction="east" minutes="18.32" orientation="longitude" precision="9" value="107.305336">107°18.32'E</geoCoordinate>
; 3 Oct. 1998; J.J. Vermeulen &amp; A.J. Whitten leg.; JJV 6265 • 1 shell; Haiphong Province, Cat Ba Island, limestone cliff at SE end of Viet Hai polje, base of cliff, surrounded by degraded woodland; 
<geoCoordinate degrees="20" direction="north" minutes="47.50" orientation="latitude" precision="9" value="20.791666">20°47.50'N</geoCoordinate>
, 
<geoCoordinate degrees="107" direction="east" minutes="02.90" orientation="longitude" precision="9" value="107.04833">107°02.90'E</geoCoordinate>
; 30 m a.s.l.; 10 Jun. 2017; J.J. Vermeulen &amp; K. Anker leg.; JJV 16608 • 1 shell; Haiphong Province, Cat Ba Island, Cave Trung Trang, around cave entrance, steep limestone cliffs with vegetated ledges; 
<geoCoordinate degrees="20" direction="north" minutes="47.30" orientation="latitude" precision="9" value="20.788334">20°47.30'N</geoCoordinate>
, 
<geoCoordinate degrees="106" direction="east" minutes="59.84" orientation="longitude" precision="9" value="106.99733">106°59.84'E</geoCoordinate>
; 50 m a.s.l.; 6 Jun. 2017; J.J. Vermeulen &amp; K. Anker leg.; JJV 18867 (ex JJV 16617) • 2 shells; Haiphong Province, Cat Ba Island, Cave Minh Chou, inside cave, cave with freshwater stream ending in the sea, much disturbed by water extraction and concrete paths; 
<geoCoordinate degrees="20" direction="north" minutes="45.21" orientation="latitude" precision="9" value="20.7535">20°45.21'N</geoCoordinate>
, 
<geoCoordinate degrees="107" direction="east" minutes="00.75" orientation="longitude" precision="9" value="107.0125">107°00.75'E</geoCoordinate>
; 50 m a.s.l.; 5 Jun. 2017; J.J. Vermeulen &amp; K. Anker leg.; JJV 16594 • 533 shells; Quang Ninh Province, Halong Bay, Cap La Cave, deposit of soil fallen in through roof in pristine cave, vegetation outside cave tall and woody; 
<geoCoordinate degrees="20" direction="north" minutes="51.79" orientation="latitude" precision="9" value="20.863167">20°51.79'N</geoCoordinate>
, 
<geoCoordinate degrees="107" direction="east" minutes="13.54" orientation="longitude" precision="9" value="107.22567">107°13.54'E</geoCoordinate>
; 7 Mar. 2018; J.J. Vermeulen &amp; K. Anker leg.; JJV 17634 • 10 shells, same data as for preceding, coll. HA • 22 shells; Haiphong Province, Cat Ba Island, Cave Uy Ban, inside small, disturbed cave; 
<geoCoordinate degrees="20" direction="north" minutes="46.39" orientation="latitude" precision="9" value="20.773167">20°46.39'N</geoCoordinate>
, 
<geoCoordinate degrees="107" direction="east" minutes="00.88" orientation="longitude" precision="9" value="107.01466">107°00.88'E</geoCoordinate>
; 40 m a.s.l.; 9 Jun. 2015; J.J. Vermeulen &amp; K. Anker leg.; JJV 16613.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="materials_examined">
<paragraph pageId="0" pageNumber="1">Additional material.</paragraph>
<paragraph pageId="0" pageNumber="1">
<materialsCitation collectingDate="2003-09-21" collectorName="W. J. M. Maassen" country="Vietnam" latitude="20.4565" location="Am" longLatPrecision="12" longitude="105.2275" municipality="Pu Puong National Park" specimenCount="1" stateProvince="Thanh Hoa Province">
<collectingCountry name="Vietnam">Vietnam</collectingCountry>
• 1 figured shell (Suppl. material 3: fig. S30) + 5 shells; 
<collectingRegion country="Vietnam" name="Thanh Hoa">Thanh Hoa Province</collectingRegion>
, 
<collectingMunicipality>Pu Puong National Park</collectingMunicipality>
, limestone hill near small native village 
<location LSID="urn:lsid:plazi:treatment:23B68695676C52EEA324995D0CAAD907:1DE3B87E11C060B2ED71533A0A525334" country="Vietnam" latitude="20.4565" longLatPrecision="12" longitude="105.2275" municipality="Pu Puong National Park" name="Am" stateProvince="Thanh Hoa Province">Am</location>
(locality code: WMVT.0344); 
<geoCoordinate degrees="20" direction="north" minutes="27.39" orientation="latitude" precision="9" value="20.4565">20°27.39'N</geoCoordinate>
, 
<geoCoordinate degrees="105" direction="east" minutes="13.65" orientation="longitude" precision="9" value="105.2275">105°13.65'E</geoCoordinate>
; 
<collectingDate value="2003-09-21">21 Sep. 2003</collectingDate>
; 
<collectorName>W.J.M. Maassen</collectorName>
leg.; RMNH.5006717 • 1 shell; same data as for preceding; NMBE 550646
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="diagnosis">
<paragraph pageId="0" pageNumber="1">Diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="1">
A small to large 
<taxonomicName authorityName="Jochum, Slapnik &amp; Pall-Gergely" authorityYear="2014" class="Gastropoda" family="Gastrocoptidae" genus="Angustopila" kingdom="Animalia" lsidName="Angustopila" order="Stylommatophora" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Angustopila</emphasis>
</taxonomicName>
species with a conical-globular shell, a relatively wide umbilicus, and a weak, deeply set parietal tooth.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">Description.</paragraph>
<paragraph pageId="0" pageNumber="1">Shell small to large for the genus, mostly higher than wide, rarely slightly wider than high; off-white, transparent, conical or more often conical-globular, only slightly higher than wide, body whorl widest from standard apertural view; protoconch consists of 1.5 whorls, with very weak spiral striation preceding the first teleoconch whorl; teleoconch finely ornamented with irregular radial growth lines crossed by fine rows of equidistantly-spaced microscopic spiral threads (ca. 14-17 on body whorl from apertural view); on frontal and ventral surfaces of body whorl spiral and radial lines dominant; whorls 4-4.5, rounded, slightly shouldered and/or pushed from basolateral direction; aperture oblique to shell axis from lateral view; umbilicus relatively wide; aperture teardrop shaped to ovoid with straight or convex parietal part; peristome slightly expanded, not reflected; parietal callus separated from penultimate whorl; aperture with a weak (low), deeply-set parietal tooth; some shells are toothless (probably representing immature individuals).</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="description">
<paragraph pageId="0" pageNumber="1">Measurements (in mm).</paragraph>
<paragraph pageId="0" pageNumber="1">
H = 0.8-1.11, D = 0.75-0.85, H/D*100 = 97.5-117.5 (
<emphasis italics="true" pageId="0" pageNumber="1">n</emphasis>
= 16, specimens from the Halong Bay), RUD = 25.6-29.6 (
<emphasis italics="true" pageId="0" pageNumber="1">n</emphasis>
= 3); H = 0.8-0.93, D = 0.8-0.85, H/D*100 = 97.6-114.8 (
<emphasis italics="true" pageId="0" pageNumber="1">n</emphasis>
= 6, WMVT.0344), RUD = 30.2 (
<emphasis italics="true" pageId="0" pageNumber="1">n</emphasis>
= 1).
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="differential diagnosis">
<paragraph pageId="0" pageNumber="1">Differential diagnosis.</paragraph>
<paragraph pageId="0" pageNumber="1">
Some specimens of 
<taxonomicName lsidName="A. fratermajor" pageId="0" pageNumber="1" rank="species" species="fratermajor">
<emphasis italics="true" pageId="0" pageNumber="1">A. fratermajor</emphasis>
</taxonomicName>
sp. nov. are almost as small and have a lower spire than 
<taxonomicName lsidName="A. maasseni" pageId="0" pageNumber="1" rank="species" species="maasseni">
<emphasis italics="true" pageId="0" pageNumber="1">A. maasseni</emphasis>
</taxonomicName>
sp. nov. However, the two species can be distinguished based on aperture shape. Namely, that of 
<taxonomicName lsidName="A. fratermajor" pageId="0" pageNumber="1" rank="species" species="fratermajor">
<emphasis italics="true" pageId="0" pageNumber="1">A. fratermajor</emphasis>
</taxonomicName>
sp. nov. is comparatively larger, and more rounded (more impressed from parietal direction in 
<taxonomicName lsidName="A. maasseni" pageId="0" pageNumber="1" rank="species" species="maasseni">
<emphasis italics="true" pageId="0" pageNumber="1">A. maasseni</emphasis>
</taxonomicName>
sp. nov.), and the parietal tooth is situated deeper (reaching or nearly reaching the peristome in 
<taxonomicName lsidName="A. maasseni" pageId="0" pageNumber="1" rank="species" species="maasseni">
<emphasis italics="true" pageId="0" pageNumber="1">A. maasseni</emphasis>
</taxonomicName>
sp. nov.).
</paragraph>
<paragraph pageId="0" pageNumber="1">
<taxonomicName authorityName="Pall-Gergely &amp; Vermeulen" authorityYear="2023" class="Gastropoda" family="Gastrocoptidae" genus="Angustopila" kingdom="Animalia" lsidName="Angustopila fratermajor" order="Stylommatophora" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="fratermajor">
<emphasis italics="true" pageId="0" pageNumber="1">Angustopila fratermajor</emphasis>
</taxonomicName>
sp. nov. was found together with 
<taxonomicName lsidName="A. apiostoma" pageId="0" pageNumber="1" rank="species" species="apiostoma">
<emphasis italics="true" pageId="0" pageNumber="1">A. apiostoma</emphasis>
</taxonomicName>
sp. nov. in multiple samples. The two species are similar in size and general shape and therefore, careful attention needs to be given to distinguish them. The differences are the following: 
<taxonomicName authorityName="Pall-Gergely &amp; Vermeulen" authorityYear="2023" class="Gastropoda" family="Gastrocoptidae" genus="Angustopila" kingdom="Animalia" lsidName="Angustopila fratermajor" order="Stylommatophora" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="fratermajor">
<emphasis italics="true" pageId="0" pageNumber="1">Angustopila fratermajor</emphasis>
</taxonomicName>
sp. nov. has a lower conical shell with a wider umbilicus, the body whorl is 
<normalizedToken originalValue="“sharper”">&quot;sharper&quot;</normalizedToken>
from umbilical view (i.e., there is a tendency towards a blunt periumbilical keel); there is a distinct parietal tooth (however, it is situated deep within the shell and difficult to recognise in some specimens), which is rare and if present, very low in 
<taxonomicName lsidName="A. apiostoma" pageId="0" pageNumber="1" rank="species" species="apiostoma">
<emphasis italics="true" pageId="0" pageNumber="1">A. apiostoma</emphasis>
</taxonomicName>
sp. nov.; the parietal callus is straight or convex (concave in 
<taxonomicName lsidName="A. apiostoma" pageId="0" pageNumber="1" rank="species" species="apiostoma">
<emphasis italics="true" pageId="0" pageNumber="1">A. apiostoma</emphasis>
</taxonomicName>
sp. nov.), and the aperture is less protruding anteriorly than in the other species.
</paragraph>
<paragraph pageId="0" pageNumber="1">
<taxonomicName authorityName="Pall-Gergely &amp; Hunyadi" authorityYear="2015" class="Gastropoda" family="Gastrocoptidae" genus="Angustopila" kingdom="Animalia" lsidName="Angustopila fabella" order="Stylommatophora" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="fabella">
<emphasis italics="true" pageId="0" pageNumber="1">Angustopila fabella</emphasis>
</taxonomicName>
shells of the Halong Bay area are concave-conical in shape (conical-globular in 
<taxonomicName lsidName="A. fratermajor" pageId="0" pageNumber="1" rank="species" species="fratermajor">
<emphasis italics="true" pageId="0" pageNumber="1">A. fratermajor</emphasis>
</taxonomicName>
sp. nov.).
</paragraph>
<paragraph pageId="0" pageNumber="1">
<taxonomicName authorityName="Pall-Gergely &amp; Vermeulen" authorityYear="2023" class="Gastropoda" family="Gastrocoptidae" genus="Angustopila" kingdom="Animalia" lsidName="Angustopila babel" order="Stylommatophora" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="babel">
<emphasis italics="true" pageId="0" pageNumber="1">Angustopila babel</emphasis>
</taxonomicName>
sp. nov. possesses larger shells and a comparatively larger aperture with a more anteriorly situated parietal tooth than 
<taxonomicName lsidName="A. fratermajor" pageId="0" pageNumber="1" rank="species" species="fratermajor">
<emphasis italics="true" pageId="0" pageNumber="1">A. fratermajor</emphasis>
</taxonomicName>
sp. nov. 
<taxonomicName authorityName="Pall-Gergely &amp; Vermeulen" authorityYear="2023" class="Gastropoda" family="Gastrocoptidae" genus="Angustopila" kingdom="Animalia" lsidName="Angustopila tonkinospiroides" order="Stylommatophora" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="tonkinospiroides">
<emphasis italics="true" pageId="0" pageNumber="1">Angustopila tonkinospiroides</emphasis>
</taxonomicName>
sp. nov. is superficially similar in shell shape, but it is larger, and has no parietal tooth. See also under 
<taxonomicName lsidName="A. fraterminor" pageId="0" pageNumber="1" rank="species" species="fraterminor">
<emphasis italics="true" pageId="0" pageNumber="1">A. fraterminor</emphasis>
</taxonomicName>
sp. nov.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="etymology">
<paragraph pageId="0" pageNumber="1">Etymology.</paragraph>
<paragraph pageId="0" pageNumber="1">
The specific epithet 
<taxonomicName authorityName="Pall-Gergely &amp; Vermeulen" authorityYear="2023" class="Gastropoda" family="Gastrocoptidae" genus="Angustopila" kingdom="Animalia" lsidName="Angustopila fratermajor" order="Stylommatophora" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="fratermajor">
<emphasis italics="true" pageId="0" pageNumber="1">Angustopila fratermajor</emphasis>
</taxonomicName>
(Latin: older brother) refers to the presence of two similar (a smaller and a larger) species in the Halong Bay area.
</paragraph>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="distribution">
<paragraph pageId="0" pageNumber="1">Distribution.</paragraph>
<paragraph pageId="0" pageNumber="1">
This species is known from several sites of the Halong Bay area, and the sample from the Pu Puong National Park, Thanh Hoa Province is also assigned to this species (see Remarks) (Fig. 
<figureCitation captionStart="Figure 44" captionStartId="F44" captionText="Figure 44. Distribution of Angustopila species. Note that the occurrence of Angustopila fratermajor Pall-Gergely &amp; Vermeulen, sp. nov. in the Pu Puong National Park (Thanh Hoa Province) is not indicated." figureDoi="10.3897/zookeys.1147.93824.figure44" httpUri="https://binary.pensoft.net/fig/808853" pageId="0" pageNumber="1">44</figureCitation>
).
</paragraph>
<caption doi="10.3897/zookeys.1147.93824.figure43" httpUri="https://binary.pensoft.net/fig/808852" pageId="0" pageNumber="1" start="Figure 43" startId="F43">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 43.</emphasis>
<taxonomicName authorityName="Pall-Gergely &amp; Vermeulen" authorityYear="2023" class="Gastropoda" family="Gastrocoptidae" genus="Angustopila" kingdom="Animalia" lsidName="Angustopila fratermajor" order="Stylommatophora" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="fratermajor">
<emphasis italics="true" pageId="0" pageNumber="1">Angustopila fratermajor</emphasis>
</taxonomicName>
<normalizedToken originalValue="Páll-Gergely">Pall-Gergely</normalizedToken>
&amp; Vermeulen, sp. nov., paratype (
<emphasis bold="true" pageId="0" pageNumber="1">A</emphasis>
) and holotype (HNHM 105286), JJV 17605 (
<emphasis bold="true" pageId="0" pageNumber="1">B-I</emphasis>
). Apertural (
<emphasis bold="true" pageId="0" pageNumber="1">A, B</emphasis>
), lateral (
<emphasis bold="true" pageId="0" pageNumber="1">C</emphasis>
), apical (
<emphasis bold="true" pageId="0" pageNumber="1">D</emphasis>
) and ventral (
<emphasis bold="true" pageId="0" pageNumber="1">E</emphasis>
) sides of the shell; aperture (
<emphasis bold="true" pageId="0" pageNumber="1">G</emphasis>
), microstructure of the protoconch (
<emphasis bold="true" pageId="0" pageNumber="1">F</emphasis>
), ventral (
<emphasis bold="true" pageId="0" pageNumber="1">H</emphasis>
) and frontal (
<emphasis bold="true" pageId="0" pageNumber="1">I</emphasis>
) surface of the body whorl.
</paragraph>
</caption>
<caption doi="10.3897/zookeys.1147.93824.figure44" httpUri="https://binary.pensoft.net/fig/808853" pageId="0" pageNumber="1" start="Figure 44" startId="F44">
<paragraph pageId="0" pageNumber="1">
<emphasis bold="true" pageId="0" pageNumber="1">Figure 44.</emphasis>
Distribution of 
<taxonomicName authorityName="Jochum, Slapnik &amp; Pall-Gergely" authorityYear="2014" class="Gastropoda" family="Gastrocoptidae" genus="Angustopila" kingdom="Animalia" lsidName="Angustopila" order="Stylommatophora" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">
<emphasis italics="true" pageId="0" pageNumber="1">Angustopila</emphasis>
</taxonomicName>
species. Note that the occurrence of 
<taxonomicName authorityName="Pall-Gergely &amp; Vermeulen" authorityYear="2023" class="Gastropoda" family="Gastrocoptidae" genus="Angustopila" kingdom="Animalia" lsidName="Angustopila fratermajor" order="Stylommatophora" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="fratermajor">
<emphasis italics="true" pageId="0" pageNumber="1">Angustopila fratermajor</emphasis>
</taxonomicName>
<normalizedToken originalValue="Páll-Gergely">Pall-Gergely</normalizedToken>
&amp; Vermeulen, sp. nov. in the Pu Puong National Park (Thanh Hoa Province) is not indicated.
</paragraph>
</caption>
</subSubSection>
<subSubSection pageId="0" pageNumber="1" type="remarks">
<paragraph pageId="0" pageNumber="1">Remarks.</paragraph>
<paragraph pageId="0" pageNumber="1">The shells from the Pu Puong National Park have a weaker parietal tooth and show a more precisely shaped conical shell form than those deriving from the Halong Bay area. Therefore, we have chosen against selecting their serving as paratypes.</paragraph>
</subSubSection>
</treatment>
</document>