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<document id="6AAC38FFADDA57EB99D80E7941977A35" ID-CLB-Dataset="2390" ID-DOI="10.11646/zootaxa.5093.3.8" ID-GBIF-Dataset="42d4c4ac-b6d2-472d-a0f3-77dc3fc8cb58" ID-ISSN="1175-5326" ID-Zenodo-Dep="5910029" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1643277067791" checkinUser="plazi" docAuthor="Takano, Tsuyoshi, Tsuzuki, Shouji &amp; Kano, Yasunori" docDate="2022" docId="038187C9FF8FFFF296E8AD8BFAD8F813" docLanguage="en" docName="zootaxa.5093.3.8.pdf" docOrigin="Zootaxa 5093 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Concavibalcis Waren 1980" docType="treatment" docVersion="5" lastPageNumber="397" masterDocId="FFB8FFB1FF8FFFF2967FA861FFBBFFE5" masterDocTitle="Description of a second species of the eulimid genus Concavibalcis (Gastropoda: Vanikoroidea)" masterLastPageNumber="400" masterPageNumber="397" pageNumber="397" updateTime="1699304549584" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="13F1DD67EAAFCD191299098BB60D0D77">Description of a second species of the eulimid genus Concavibalcis (Gastropoda: Vanikoroidea)</mods:title>
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<mods:namePart id="C0BDBDC20A1B3D610C214D636925036C">Takano, Tsuyoshi</mods:namePart>
<mods:affiliation id="D6451F61749F39E2F9628C02A3F18D77">Meguro Parasitological Museum, 4 - 1 - 1 Shimomeguro, Meguro, Tokyo 153 - 0064, Japan.</mods:affiliation>
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<mods:namePart id="D696E150B1319B97E251254E0E93F690">Tsuzuki, Shouji</mods:namePart>
<mods:affiliation id="20343CAB33CD481BCF25344FC2FB11F1">53 - 17 Oyumi, Chiba, Chiba 260 - 0813, Japan. urumashell 9860 @ gmail. com</mods:affiliation>
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<mods:namePart id="C2F76FD4D0D0422988DDE6B4D6A08418">Kano, Yasunori</mods:namePart>
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<mods:affiliation id="238763032C7EE99CC6C651F1D76E3228">Atmosphere and Ocean Research Institute, The University of Tokyo, 5 - 1 - 5 Kashiwanoha, Kashiwa, Chiba 277 - 8564, Japan. kano @ aori. u-tokyo. ac. jp; https: // orcid. org / 0000 - 0002 - 9527 - 5116</mods:affiliation>
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<treatment id="038187C9FF8FFFF296E8AD8BFAD8F813" ID-DOI="http://doi.org/10.5281/zenodo.5910033" ID-GBIF-Taxon="192651051" ID-Zenodo-Dep="5910033" LSID="urn:lsid:plazi:treatment:038187C9FF8FFFF296E8AD8BFAD8F813" httpUri="http://treatment.plazi.org/id/038187C9FF8FFFF296E8AD8BFAD8F813" lastPageNumber="397" pageId="0" pageNumber="397">
<subSubSection id="C3326554FF8FFFF296E8AD8BFD86F9E1" box="[151,573,1513,1540]" pageId="0" pageNumber="397" type="nomenclature">
<paragraph id="8B9736DFFF8FFFF296E8AD8BFD86F9E1" blockId="0.[151,1437,1406,2039]" box="[151,573,1513,1540]" pageId="0" pageNumber="397">
<heading id="D0DF81B3FF8FFFF296E8AD8BFD86F9E1" bold="true" box="[151,573,1513,1540]" fontSize="11" level="1" pageId="0" pageNumber="397" reason="1">
<emphasis id="B95CEACDFF8FFFF296E8AD8BFD86F9E1" bold="true" box="[151,573,1513,1540]" pageId="0" pageNumber="397">
Genus
<taxonomicName id="4C284D5CFF8FFFF29691AD88FD86F9E1" ID-CoL="7P26S" authority="Waren, 1980" authorityName="Waren" authorityYear="1980" box="[238,573,1513,1540]" class="Gastropoda" family="Eulimidae" genus="Concavibalcis" kingdom="Animalia" order="Littorinimorpha" pageId="0" pageNumber="397" phylum="Mollusca" rank="genus">
<emphasis id="B95CEACDFF8FFFF29691AD88FE2CF9E1" bold="true" box="[238,407,1513,1540]" italics="true" pageId="0" pageNumber="397">Concavibalcis</emphasis>
Warén, 1980
</taxonomicName>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C3326554FF8FFFF296E8AE6AFC2DF9C7" box="[151,918,1546,1571]" pageId="0" pageNumber="397" type="type_taxon">
<paragraph id="8B9736DFFF8FFFF296E8AE6AFC2DF9C7" blockId="0.[151,1437,1406,2039]" box="[151,918,1546,1571]" pageId="0" pageNumber="397">
<emphasis id="B95CEACDFF8FFFF296E8AE6AFE98F9C7" bold="true" box="[151,291,1546,1571]" inLineHeading="true" pageId="0" pageNumber="397" reason="1">
<typeStatus id="5493887DFF8FFFF296E8AE6AFF77F9C6" box="[151,204,1547,1571]" pageId="0" pageNumber="397">Type</typeStatus>
species.
</emphasis>
<taxonomicName id="4C284D5CFF8FFFF29755AE6BFD21F9C6" ID-CoL="XK52" authority="Waren, 1980" authorityName="Waren" authorityYear="1980" box="[298,666,1546,1571]" class="Gastropoda" family="Eulimidae" genus="Concavibalcis" kingdom="Animalia" order="Littorinimorpha" pageId="0" pageNumber="397" phylum="Mollusca" rank="species" species="scalaris">
<emphasis id="B95CEACDFF8FFFF29755AE6BFDAAF9C7" box="[298,529,1546,1570]" italics="true" pageId="0" pageNumber="397">Concavibalcis scalaris</emphasis>
Warén, 1980
</taxonomicName>
, by original designation.
</paragraph>
</subSubSection>
<subSubSection id="C3326554FF8FFFF296E8AE4EFAD8F813" pageId="0" pageNumber="397" type="discussion">
<paragraph id="8B9736DFFF8FFFF296E8AE4EFD79F932" blockId="0.[151,1437,1406,2039]" pageId="0" pageNumber="397">
<emphasis id="B95CEACDFF8FFFF296E8AE4EFEBDF9A2" bold="true" box="[151,262,1583,1607]" inLineHeading="true" pageId="0" pageNumber="397" reason="1">Remarks.</emphasis>
The
<typeStatus id="5493887DFF8FFFF29744AE4FFE23F9A3" box="[315,408,1582,1606]" pageId="0" pageNumber="397" type="holotype">holotype</typeStatus>
of
<taxonomicName id="4C284D5CFF8FFFF297C5AE4EFD96F9A3" authorityName="Waren" authorityYear="1980" box="[442,557,1582,1606]" class="Gastropoda" family="Eulimidae" genus="Concavibalcis" kingdom="Animalia" order="Littorinimorpha" pageId="0" pageNumber="397" phylum="Mollusca" rank="species" species="scalaris">
<emphasis id="B95CEACDFF8FFFF297C5AE4EFD96F9A3" box="[442,557,1582,1606]" italics="true" pageId="0" pageNumber="397">C. scalaris</emphasis>
</taxonomicName>
(Smithsonian National Museum of Natural History, USNM 277426) was collected from
<quantity id="4CD09B3AFF8FFFF296AEAE32FEAFF98F" box="[209,276,1619,1643]" metricMagnitude="2" metricUnit="m" metricValue="3.9" pageId="0" pageNumber="397" unit="m" value="390.0">390 m</quantity>
off Motocot Point, Luzon Island, the
<collectingCountry id="F33F764FFF8FFFF294DFAE33FCA3F98F" box="[672,792,1618,1642]" name="Philippines" pageId="0" pageNumber="397">Philippines</collectingCountry>
(
<bibRefCitation id="EFB94B2EFF8FFFF2955AAE33FC56F98E" author="Waren, A." box="[805,1005,1618,1643]" pageId="0" pageNumber="397" pagination="283 - 306" refId="ref2452" refString="Waren, A. (1980 b) Descriptions of new taxa of Eulimidae (Mollusca, Prosobranchia), with notes on some previously described genera. Zoologica Scripta, 9, 283 - 306. https: // doi. org / 10.1111 / j. 1463 - 6409.1980. tb 00668. x" type="journal article" year="1980">Warén 1980b: 294</bibRefCitation>
). Its shell is characterized by (1) a height of
<quantity id="4CD09B3AFF8FFFF296CBAE17FEBCF96B" box="[180,263,1654,1678]" metricMagnitude="-3" metricUnit="m" metricValue="5.1" pageId="0" pageNumber="397" unit="mm" value="5.1">5.1 mm</quantity>
, (2) a conical outline, (3) a slightly chalky appearance, (4) a blunt apex without clear demarcation between the protoconch and teleoconch, (5) shouldered, distinctly concave teleoconch whorls, (6) an ovate aperture, and (7) a strongly curved outer lip (
<bibRefCitation id="EFB94B2EFF8FFFF29731AEDFFE59F933" author="Waren, A." box="[334,482,1726,1750]" pageId="0" pageNumber="397" pagination="283 - 306" refId="ref2452" refString="Waren, A. (1980 b) Descriptions of new taxa of Eulimidae (Mollusca, Prosobranchia), with notes on some previously described genera. Zoologica Scripta, 9, 283 - 306. https: // doi. org / 10.1111 / j. 1463 - 6409.1980. tb 00668. x" type="journal article" year="1980">Warén 1980b</bibRefCitation>
: figs. 3234, 1983a).
</paragraph>
<paragraph id="8B9736DFFF8FFFF296B8AE83FAD8F813" blockId="0.[151,1437,1406,2039]" pageId="0" pageNumber="397">
<bibRefCitation id="EFB94B2EFF8FFFF296B8AE83FED3F91F" author="Waren, A." box="[199,360,1762,1786]" pageId="0" pageNumber="397" pagination="283 - 306" refId="ref2452" refString="Waren, A. (1980 b) Descriptions of new taxa of Eulimidae (Mollusca, Prosobranchia), with notes on some previously described genera. Zoologica Scripta, 9, 283 - 306. https: // doi. org / 10.1111 / j. 1463 - 6409.1980. tb 00668. x" type="journal article" year="1980">Warén (1980b)</bibRefCitation>
noted some resemblance between
<taxonomicName id="4C284D5CFF8FFFF294A0AE82FCE8F91F" authorityName="Waren" authorityYear="1980" box="[735,851,1762,1786]" class="Gastropoda" family="Eulimidae" genus="Concavibalcis" kingdom="Animalia" order="Littorinimorpha" pageId="0" pageNumber="397" phylum="Mollusca" rank="species" species="scalaris">
<emphasis id="B95CEACDFF8FFFF294A0AE82FCE8F91F" box="[735,851,1762,1786]" italics="true" pageId="0" pageNumber="397">C. scalaris</emphasis>
</taxonomicName>
and certain species of
<taxonomicName id="4C284D5CFF8FFFF29234AE83FF77F8FB" authority="H. Adams &amp; A. Adams, 1854" authorityName="H. Adams &amp; A. Adams" authorityYear="1854" class="Gastropoda" family="Zebinidae" genus="Zebina" kingdom="Animalia" order="Littorinimorpha" pageId="0" pageNumber="397" phylum="Mollusca" rank="genus">
<emphasis id="B95CEACDFF8FFFF29234AE83FB2EF91F" box="[1099,1173,1762,1786]" italics="true" pageId="0" pageNumber="397">Zebina</emphasis>
H. Adams &amp; A. Adams, 1854
</taxonomicName>
(
<taxonomicName id="4C284D5CFF8FFFF296A3AF67FE20F8FB" authorityName="Cox" authorityYear="1960" box="[220,411,1798,1822]" pageId="0" pageNumber="397" rank="subClass" subClass="Caenogastropoda">Caenogastropoda</taxonomicName>
: Rissooidea:
<taxonomicName id="4C284D5CFF8FFFF29454AF67FD2CF8FB" authorityName="Coan" authorityYear="1964" box="[555,663,1798,1822]" class="Gastropoda" family="Zebinidae" kingdom="Animalia" order="Littorinimorpha" pageId="0" pageNumber="397" phylum="Mollusca" rank="family">Zebinidae</taxonomicName>
) in teleoconch morphology. The latter genus is, however, characterized by an aperture with a more developed basal notch and a straight, opisthocline outer lip (
<bibRefCitation id="EFB94B2EFF8FFFF2921FAF4BFB4DF8A7" author="Waren, A." box="[1120,1270,1834,1858]" pageId="0" pageNumber="397" pagination="283 - 306" refId="ref2452" refString="Waren, A. (1980 b) Descriptions of new taxa of Eulimidae (Mollusca, Prosobranchia), with notes on some previously described genera. Zoologica Scripta, 9, 283 - 306. https: // doi. org / 10.1111 / j. 1463 - 6409.1980. tb 00668. x" type="journal article" year="1980">Warén 1980b</bibRefCitation>
;
<bibRefCitation id="EFB94B2EFF8FFFF2937CAF4BFA2BF8A7" author="Ponder, W. F." box="[1283,1424,1834,1858]" pageId="0" pageNumber="397" pagination="1 - 221" refId="ref2169" refString="Ponder, W. F. (1985) A review of the genera of the Rissoidae (Mollusca: Mesogastropoda: Rissoacea). Records of the Australian Museum, Supplement 4, 1 - 221. https: // doi. org / 10.3853 / j. 0812 - 7387.4.1985.100" type="journal article" year="1985">Ponder 1985</bibRefCitation>
).
<taxonomicName id="4C284D5CFF8FFFF296E8AF2FFE35F883" authorityName="Waren" authorityYear="1980" box="[151,398,1870,1894]" class="Gastropoda" family="Eulimidae" genus="Concavibalcis" kingdom="Animalia" order="Littorinimorpha" pageId="0" pageNumber="397" phylum="Mollusca" rank="species" species="scalaris">
<emphasis id="B95CEACDFF8FFFF296E8AF2FFE35F883" box="[151,398,1870,1894]" italics="true" pageId="0" pageNumber="397">Concavibalcis scalaris</emphasis>
</taxonomicName>
is also similar to
<taxonomicName id="4C284D5CFF8FFFF29422AF2FFBA6F883" authority="(Habe, 1961)" baseAuthorityName="Habe" baseAuthorityYear="1961" box="[605,1053,1870,1894]" class="Gastropoda" family="Pyramidellidae" genus="Turriodostomia" kingdom="Animalia" pageId="0" pageNumber="397" phylum="Mollusca" rank="species" species="nakayamai">
<emphasis id="B95CEACDFF8FFFF29422AF2FFC39F883" box="[605,898,1870,1894]" italics="true" pageId="0" pageNumber="397">Turriodostomia nakayamai</emphasis>
(
<bibRefCitation id="EFB94B2EFF8FFFF295EBAF2FFBAEF883" author="Habe, T." box="[916,1045,1870,1894]" pageId="0" pageNumber="397" pagination="416 - 431" refId="ref2080" refString="Habe, T. (1961) Description of fifteen new species of Japanese shells. Venus, 21, 416 - 431. https: // doi. org / 10.18941 / venusjjma. 21.4 _ 416" type="journal article" year="1961">Habe, 1961</bibRefCitation>
)
</taxonomicName>
(Heterobranchia: Pyramidelloidea:
<taxonomicName id="4C284D5CFF8FFFF296E8AF13FE81F86F" authorityName="Gray" authorityYear="1840" box="[151,314,1906,1930]" class="Gastropoda" family="Pyramidellidae" kingdom="Animalia" pageId="0" pageNumber="397" phylum="Mollusca" rank="family">Pyramidellidae</taxonomicName>
) in sharing shouldered, concave teleoconch whorls, whereas only the latter species has a strong columellar fold in the aperture (
<bibRefCitation id="EFB94B2EFF8FFFF29704AFF7FE4CF84B" author="Habe, T." box="[379,503,1942,1966]" pageId="0" pageNumber="397" pagination="416 - 431" refId="ref2080" refString="Habe, T. (1961) Description of fifteen new species of Japanese shells. Venus, 21, 416 - 431. https: // doi. org / 10.18941 / venusjjma. 21.4 _ 416" type="journal article" year="1961">Habe 1961</bibRefCitation>
). The familial assignment of
<taxonomicName id="4C284D5CFF8FFFF29543AFF6FC0AF84B" authorityName="Waren" authorityYear="1980" box="[828,945,1942,1966]" class="Gastropoda" family="Eulimidae" genus="Concavibalcis" kingdom="Animalia" order="Littorinimorpha" pageId="0" pageNumber="397" phylum="Mollusca" rank="species" species="scalaris">
<emphasis id="B95CEACDFF8FFFF29543AFF6FC0AF84B" box="[828,945,1942,1966]" italics="true" pageId="0" pageNumber="397">C. scalaris</emphasis>
</taxonomicName>
to
<taxonomicName id="4C284D5CFF8FFFF295A6AFF7FBFCF84B" authorityName="Philippi" authorityYear="1853" box="[985,1095,1942,1966]" class="Gastropoda" family="Eulimidae" kingdom="Animalia" order="Littorinimorpha" pageId="0" pageNumber="397" phylum="Mollusca" rank="family">Eulimidae</taxonomicName>
is justified by the simple shell aperture without a basal notch or a columellar fold and by a probable lack of a radula (
<bibRefCitation id="EFB94B2EFF8FFFF29238AFDBFB67F837" author="Waren, A." box="[1095,1244,1978,2002]" pageId="0" pageNumber="397" pagination="283 - 306" refId="ref2452" refString="Waren, A. (1980 b) Descriptions of new taxa of Eulimidae (Mollusca, Prosobranchia), with notes on some previously described genera. Zoologica Scripta, 9, 283 - 306. https: // doi. org / 10.1111 / j. 1463 - 6409.1980. tb 00668. x" type="journal article" year="1980">Warén 1980b</bibRefCitation>
). The presence of incremental scars in the present new species (see below) further corroborates the eulimid affinity of
<taxonomicName id="4C284D5CFF8FFFF292BCAFBFFAE7F813" authorityName="Waren" authorityYear="1980" box="[1219,1372,2014,2038]" class="Gastropoda" family="Eulimidae" genus="Concavibalcis" kingdom="Animalia" order="Littorinimorpha" pageId="0" pageNumber="397" phylum="Mollusca" rank="genus">
<emphasis id="B95CEACDFF8FFFF292BCAFBFFAE7F813" box="[1219,1372,2014,2038]" italics="true" pageId="0" pageNumber="397">Concavibalcis</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
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