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<document id="F74860C251B3F2671C3794040D156D64" ID-CLB-Dataset="36890" ID-DOI="10.11646/zootaxa.3772.1.1" ID-GBIF-Dataset="12787306-9151-40cd-8103-1ecac6bdb6b8" ID-ISSN="1175-5326" ID-Zenodo-Dep="285653" ID-ZooBank="1A1578DD-4B10-4F70-8CB6-03B0ED07AB68" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460391597516" checkinUser="plazi" docAuthor="Sartori, André F., Gargominy, Olivier &amp; Fontaine, Benoît" docDate="2014" docId="222F879AFFFEFFEB578BFF23FBCDF849" docLanguage="en" docName="zt03772p068.pdf" docOrigin="Zootaxa 3772 (1)" docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph" docStyleId="5EBBA59367AD13919D70D935FA04F6A3" docStyleName="Zootaxa.2013-.monograph" docStyleVersion="14" docTitle="Pseudolibera matthieui Sartori, Gargominy &amp; Fontaine, 2014, sp. nov." docType="treatment" docVersion="7" lastPageNumber="45" masterDocId="DE16FFE2FFD2FFC7571CFFB4FFAEFFFE" masterDocTitle="Radiation and decline of endodontid land snails in Makatea, French Polynesia" masterLastPageNumber="68" masterPageNumber="1" pageNumber="45" updateTime="1698298295679" updateUser="ExternalLinkService">
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<mods:title id="FF12E3136BE7F618620D3A39D16E7052">Radiation and decline of endodontid land snails in Makatea, French Polynesia</mods:title>
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<mods:namePart id="D2C92BB85EFE6866A902DAD115CD58FC">Sartori, André F.</mods:namePart>
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<mods:namePart id="098A1EA8AE9BC768B75600788826686D">Gargominy, Olivier</mods:namePart>
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<mods:namePart id="B20687A31ED8A32B21B14D5BFC4E2F90">Fontaine, Benoît</mods:namePart>
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<mods:date id="4CE1DCF922662BDC63C2B4E94C981ED3">2014</mods:date>
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<treatment id="222F879AFFFEFFEB578BFF23FBCDF849" ID-DOI="http://doi.org/10.5281/zenodo.5612290" ID-GBIF-Taxon="127667187" ID-Zenodo-Dep="5612290" LSID="urn:lsid:plazi:treatment:222F879AFFFEFFEB578BFF23FBCDF849" httpUri="http://treatment.plazi.org/id/222F879AFFFEFFEB578BFF23FBCDF849" lastPageNumber="45" pageId="44" pageNumber="45">
<subSubSection id="E29C6507FFFEFFEB578BFF23FE56FF2D" pageId="44" pageNumber="45" type="nomenclature">
<paragraph id="AA39368CFFFEFFEB578BFF23FDBAFF4C" blockId="44.[151,532,151,211]" box="[151,532,151,178]" pageId="44" pageNumber="45">
<heading id="F17181E0FFFEFFEB578BFF23FDBAFF4C" bold="true" box="[151,532,151,178]" fontSize="11" level="1" pageId="44" pageNumber="45" reason="1">
<emphasis id="98F2EA9EFFFEFFEB578BFF23FDBAFF4C" bold="true" box="[151,532,151,178]" pageId="44" pageNumber="45">
<taxonomicName id="6D864D0FFFFEFFEB578BFF23FE1EFF4F" box="[151,432,151,177]" class="Gastropoda" family="Endodontidae" genus="Pseudolibera" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="matthieui" status="sp. nov.">
<emphasis id="98F2EA9EFFFEFFEB578BFF23FE1EFF4F" bold="true" box="[151,432,151,177]" italics="true" pageId="44" pageNumber="45">Pseudolibera matthieui</emphasis>
</taxonomicName>
<taxonomicNameLabel id="83C157E5FFFEFFEB56ABFF2CFDBAFF4C" box="[439,532,152,178]" pageId="44" pageNumber="45" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="AA39368CFFFEFFEB578BFF0EFE56FF2D" blockId="44.[151,532,151,211]" box="[151,504,186,211]" pageId="44" pageNumber="45">
<figureCitation id="32BD2A09FFFEFFEB578BFF0EFEBFFF2D" box="[151,273,186,211]" captionStart="FIGURE 25" captionStartId="42.[151,250,1824,1846]" captionTargetBox="[151,1436,193,1801]" captionTargetId="figure@42.[151,1436,193,1803]" captionTargetPageId="42" captionText="FIGURE 25. Holotypes of: A. Pseudolibera solemi sp. nov.; B. P. matthieui sp. nov.; C. P. cookei sp. nov.; D. P. aubertdelaruei sp. nov. Scale bars = 5 mm." httpUri="https://zenodo.org/record/285678/files/figure.png" pageId="44" pageNumber="45">Figures 25</figureCitation>
B; 27; 36D; 38E; 39.
</paragraph>
</subSubSection>
<subSubSection id="E29C6507FFFEFFEB578BFEB6FD86FE55" pageId="44" pageNumber="45" type="materials_examined">
<paragraph id="AA39368CFFFEFFEB578BFEB6FE81FE9D" blockId="44.[151,1437,258,1975]" pageId="44" pageNumber="45">
<emphasis id="98F2EA9EFFFEFFEB578BFEB6FE2CFEE5" bold="true" box="[151,386,258,283]" pageId="44" pageNumber="45">Examined material</emphasis>
(
<specimenCount id="BC80FD05FFFEFFEB568BFEB7FDECFEE5" box="[407,578,258,283]" pageId="44" pageNumber="45" type="generic">118 specimens</specimenCount>
).
<emphasis id="98F2EA9EFFFEFFEB5546FEB6FD69FEE5" bold="true" box="[602,711,258,283]" pageId="44" pageNumber="45">
<typeStatus id="753D882EFFFEFFEB5546FEB6FD69FEE5" box="[602,711,258,283]" pageId="44" pageNumber="45" type="holotype">Holotype</typeStatus>
</emphasis>
:
<collectionCode id="CC97AE49FFFEFFEB55C0FEB7FC9FFEE4" LSID="urn:lsid:biocol.org:col:34988" box="[732,817,259,282]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="44" pageNumber="45">MNHN</collectionCode>
26531, Mk13.
<emphasis id="98F2EA9EFFFEFFEB54F3FEB6FBDFFEE5" bold="true" box="[1007,1137,258,283]" pageId="44" pageNumber="45">
<typeStatus id="753D882EFFFEFFEB54F3FEB6FBC5FEE5" box="[1007,1131,258,283]" pageId="44" pageNumber="45" type="paratype">Paratypes</typeStatus>
:
</emphasis>
<collectionCode id="CC97AE49FFFEFFEB5361FEB7FB7DFEE4" LSID="urn:lsid:biocol.org:col:34988" box="[1149,1235,259,282]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="44" pageNumber="45">MNHN</collectionCode>
26532, 8 shells, Mk13.
<emphasis id="98F2EA9EFFFEFFEB57F6FE92FE76FEC1" bold="true" box="[234,472,294,319]" pageId="44" pageNumber="45">Additional material</emphasis>
: 1 shell, Mk03; 2 shells, Mk04; 101 shells, Mk13; 1 shell, Mk16; 1 shell, Mk19; 3 shells, Mk22.
</paragraph>
<paragraph id="AA39368CFFFEFFEB57DDFEDAFD86FE55" blockId="44.[151,1437,258,1975]" pageId="44" pageNumber="45">
<emphasis id="98F2EA9EFFFEFFEB57DDFEDAFECFFE79" bold="true" box="[193,353,366,391]" pageId="44" pageNumber="45">
<typeStatus id="753D882EFFFEFFEB57DDFEDAFF52FE79" box="[193,252,366,391]" pageId="44" pageNumber="45">Type</typeStatus>
locality.
</emphasis>
West coast, approximately
<quantity id="6D7E9B69FFFEFFEB5580FEDBFD79FE79" box="[668,727,366,391]" metricMagnitude="3" metricUnit="m" metricValue="3.0" pageId="44" pageNumber="45" unit="km" value="3.0">3 km</quantity>
south of Temao, Makatea (
<geoCoordinate id="CFB2504BFFFEFFEB530CFEDAFB37FE79" box="[1040,1177,366,391]" direction="south" orientation="latitude" pageId="44" pageNumber="45" precision="1" value="-15.85189">15.85189°S</geoCoordinate>
;
<geoCoordinate id="CFB2504BFFFEFFEB53B9FEDBFAE9FE79" box="[1189,1351,367,391]" direction="west" orientation="longitude" pageId="44" pageNumber="45" precision="1" value="-148.28018">148.28018°W</geoCoordinate>
). Cave. Limestone, alt.
<quantity id="6D7E9B69FFFEFFEB5659FE27FE2FFE54" box="[325,385,403,427]" metricMagnitude="1" metricUnit="m" metricValue="1.0" pageId="44" pageNumber="45" unit="m" value="10.0">10 m</quantity>
; station Mk13.
</paragraph>
</subSubSection>
<subSubSection id="E29C6507FFFEFFEB57DDFE02FB5FFDE8" pageId="44" pageNumber="45" type="diagnosis">
<paragraph id="AA39368CFFFEFFEB57DDFE02FB5FFDE8" blockId="44.[151,1437,258,1975]" pageId="44" pageNumber="45">
<emphasis id="98F2EA9EFFFEFFEB57DDFE02FE95FE31" bold="true" box="[193,315,438,463]" pageId="44" pageNumber="45">Diagnosis.</emphasis>
Shell less than
<quantity id="6D7E9B69FFFEFFEB56E8FE03FD99FE30" box="[500,567,439,462]" metricMagnitude="-3" metricUnit="m" metricValue="7.0" pageId="44" pageNumber="45" unit="mm" value="7.0">7 mm</quantity>
in diameter, depressed, flammulated; apex depressed to barely raised, spire elevated; peripheral keel narrow; teleoconch sculptured by subequal axial and spiral ribs, not reduced on shell base; palatal wall devoid of barriers; 1 parietal barrier extending 1½ whorls, with a bifurcated mid sector.
</paragraph>
</subSubSection>
<subSubSection id="E29C6507FFFEFFEB57DDFD96FBFBFA89" pageId="44" pageNumber="45" type="description">
<paragraph id="AA39368CFFFEFFEB57DDFD96FBFBFA89" blockId="44.[151,1437,258,1975]" pageId="44" pageNumber="45">
<emphasis id="98F2EA9EFFFEFFEB57DDFD96FEFDFDC5" bold="true" box="[193,339,546,571]" pageId="44" pageNumber="45">Description.</emphasis>
Shell depressed, dome-shaped, white, with regularly spaced, amber flammulations on the apical surface, absent or restricted to the peripheral keel on the shell base. Shell wall very thin, opaque to pellucid; periostracum adherent, shiny. Apex depressed to barely raised; spire elevated, latter whorls descending more rapidly. Apical suture impressed at apex, progressively deepening in subsequent whorls; umbilical suture impressed at apex, adpressed approximately from the third whorl onwards. Whorls concave above and below narrow peripheral keel, transitioning into broadly convex toward the apical suture and shell base; junction of basal and columellar walls initially obtusely angled, developing a keel approximately from the sixth whorl onwards. Transition between protoconch and teleoconch indistinct. Protoconch sculptured by relatively broad primary axial ribs, with interspaces 23 times their width, overlaid by a fine secondary sculpture of oblique, axial and spiral elements; oblique elements represented by irregular riblets on the first whorl, gradually transitioning into axial riblets with interspaces approximately equal to their width; secondary spiral sculpture of the protoconch composed of fine lirae, with interspaces approximately four times their width, forming tiny nodules at intersections with oblique and axial riblets. Primary ribs of the protoconch gradually transitioning into taller ribs, which comprise the primary axial sculpture of the teleoconch; secondary axial riblets of the protoconch gradually increasing in number and persisting as the secondary axial sculpture of the teleoconch. Spiral sculpture of the protoconch transitioning into wavy spiral ribs of the teleoconch, more closely spaced and slightly lower than the primary axial ribs of the teleoconch; nodular projections present at intersections between spiral and axial ribs. Sculpture not reduced on shell base. Umbilicus rapidly expanding in diameter for approximately the first 3 whorls, remaining constant in diameter for approximately 2 whorls, subsequently constricted by inward growth of the lower columellar wall and lip. Peristome elongated crescent, with rostrate periphery; columellar lip reflected. Palatal wall devoid of barriers. Parietal wall with 1 barrier, positioned slightly closer to the apical than the umbilical suture, descending gradually anteriorly and posteriorly, extending posteriorly for c. 1½ whorls, with a bifurcated tip along its mid sector; onset of bifurcated tip approximately 1/2 to 3/4 whorl behind the aperture; end of bifurcated tip c. 1¼ whorls behind the aperture. Other shell features that can be expressed numerically are shown in
<tableCitation id="E7040337FFFEFFEB54E7FAEAFBFEFA89" box="[1019,1104,1374,1399]" captionStart="TABLE 3" captionStartId="56.[151,238,472,495]" captionText="TABLE 3. Dimensions (in mm) and ratios of dimensions of specimens of Pseudolibera. See Figure 3 for the placement" pageId="44" pageNumber="45">Table 3</tableCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="E29C6507FFFEFFEB57DDFA36FB01F86D" pageId="44" pageNumber="45" type="discussion">
<paragraph id="AA39368CFFFEFFEB57DDFA36FD7EF969" blockId="44.[151,1437,258,1975]" pageId="44" pageNumber="45">
<emphasis id="98F2EA9EFFFEFFEB57DDFA36FE9BFA65" bold="true" box="[193,309,1410,1435]" pageId="44" pageNumber="45">Remarks.</emphasis>
The bifurcated section of its parietal barrier distinguishes
<taxonomicName id="6D864D0FFFFEFFEB54D2FA30FBFAFA65" box="[974,1108,1410,1435]" class="Gastropoda" family="Endodontidae" genus="Pseudolibera" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="matthieui">
<emphasis id="98F2EA9EFFFEFFEB54D2FA30FBFAFA65" box="[974,1108,1410,1435]" italics="true" pageId="44" pageNumber="45">P. matthieui</emphasis>
</taxonomicName>
from all other
<taxonomicName id="6D864D0FFFFEFFEB521CFA36FA3BFA65" box="[1280,1429,1410,1435]" class="Gastropoda" family="Endodontidae" genus="Pseudolibera" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="genus">
<emphasis id="98F2EA9EFFFEFFEB521CFA36FA3BFA65" box="[1280,1429,1410,1435]" italics="true" pageId="44" pageNumber="45">Pseudolibera</emphasis>
</taxonomicName>
. However, the Y-shaped sector of the barrier lies deeply within the aperture and is not observable in intact specimens using reflected or transmitted light. The flatter apex of
<taxonomicName id="6D864D0FFFFEFFEB54A0FA78FBEFFA1D" box="[956,1089,1482,1507]" class="Gastropoda" family="Endodontidae" genus="Pseudolibera" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="matthieui">
<emphasis id="98F2EA9EFFFEFFEB54A0FA78FBEFFA1D" box="[956,1089,1482,1507]" italics="true" pageId="44" pageNumber="45">P. matthieui</emphasis>
</taxonomicName>
provides the best feature for distinguishing intact specimens from the somewhat similar
<taxonomicName id="6D864D0FFFFEFFEB548CFA5BFBA6F9F9" box="[912,1032,1518,1543]" class="Gastropoda" family="Endodontidae" genus="Pseudolibera" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="lillianae">
<emphasis id="98F2EA9EFFFEFFEB548CFA5BFBA6F9F9" box="[912,1032,1518,1543]" italics="true" pageId="44" pageNumber="45">P. lillianae</emphasis>
</taxonomicName>
,
<taxonomicName id="6D864D0FFFFEFFEB5338FA5BFB27F9F9" box="[1060,1161,1518,1543]" class="Gastropoda" family="Endodontidae" genus="Pseudolibera" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="solemi">
<emphasis id="98F2EA9EFFFEFFEB5338FA5BFB27F9F9" box="[1060,1161,1518,1543]" italics="true" pageId="44" pageNumber="45">P. solemi</emphasis>
</taxonomicName>
and
<taxonomicName id="6D864D0FFFFEFFEB53D1FA5BFA91F9F9" box="[1229,1343,1518,1543]" class="Gastropoda" family="Endodontidae" genus="Pseudolibera" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="cookei" status="sp. nov.">
<emphasis id="98F2EA9EFFFEFFEB53D1FA5BFA91F9F9" box="[1229,1343,1518,1543]" italics="true" pageId="44" pageNumber="45">P. cookei</emphasis>
</taxonomicName>
<taxonomicNameLabel id="83C157E5FFFEFFEB525AFA5BFA32F9F8" box="[1350,1436,1519,1542]" pageId="44" pageNumber="45" rank="species">sp. nov.</taxonomicNameLabel>
Additionally,
<taxonomicName id="6D864D0FFFFEFFEB562AF9A0FE12F9D5" box="[310,444,1554,1579]" class="Gastropoda" family="Endodontidae" genus="Pseudolibera" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="matthieui">
<emphasis id="98F2EA9EFFFEFFEB562AF9A0FE12F9D5" box="[310,444,1554,1579]" italics="true" pageId="44" pageNumber="45">P. matthieui</emphasis>
</taxonomicName>
differs from
<taxonomicName id="6D864D0FFFFEFFEB5547F9A0FD7DF9D5" box="[603,723,1554,1579]" class="Gastropoda" family="Endodontidae" genus="Pseudolibera" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="lillianae">
<emphasis id="98F2EA9EFFFEFFEB5547F9A0FD7DF9D5" box="[603,723,1554,1579]" italics="true" pageId="44" pageNumber="45">P. lillianae</emphasis>
</taxonomicName>
in its deeper sutures, smaller shell size and slightly shorter peripheral keel; from
<taxonomicName id="6D864D0FFFFEFFEB5692F983FE5DF9B1" box="[398,499,1590,1615]" class="Gastropoda" family="Endodontidae" genus="Pseudolibera" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="solemi">
<emphasis id="98F2EA9EFFFEFFEB5692F983FE5DF9B1" box="[398,499,1590,1615]" italics="true" pageId="44" pageNumber="45">P. solemi</emphasis>
</taxonomicName>
in its narrower peripheral keel, more frequent and larger flammulations, and in its usually lower spire; and from
<taxonomicName id="6D864D0FFFFEFFEB56F3F9E8FDFBF98D" box="[495,597,1626,1651]" class="Gastropoda" family="Endodontidae" genus="Pseudolibera" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="cookei">
<emphasis id="98F2EA9EFFFEFFEB56F3F9E8FDFBF98D" box="[495,597,1626,1651]" italics="true" pageId="44" pageNumber="45">P. cookei</emphasis>
</taxonomicName>
in its deeper sutures, more crowded and less conspicuous axial sculpture, and in exhibiting spiral sculpture on the shell base.
</paragraph>
<paragraph id="AA39368CFFFEFFEB57DDF916FB01F86D" blockId="44.[151,1437,258,1975]" pageId="44" pageNumber="45">
Examining damaged or carefully dissected shells of
<taxonomicName id="6D864D0FFFFEFFEB540EF910FC39F945" box="[786,919,1698,1723]" class="Gastropoda" family="Endodontidae" genus="Pseudolibera" higherTaxonomySource="GBIF" kingdom="Animalia" order="Stylommatophora" pageId="44" pageNumber="45" phylum="Mollusca" rank="species" species="matthieui">
<emphasis id="98F2EA9EFFFEFFEB540EF910FC39F945" box="[786,919,1698,1723]" italics="true" pageId="44" pageNumber="45">P. matthieui</emphasis>
</taxonomicName>
, we verified the morphology of the barrier in one shell each from stations Mk04, Mk16, Mk19 and Mk22, and in 23 individuals from the
<typeStatus id="753D882EFFFEFFEB53B7F973FB75F921" box="[1195,1243,1735,1759]" pageId="44" pageNumber="45">type</typeStatus>
locality (Mk13). All specimens from the west side of Makatea (stations Mk13 and Mk16) have the first two whorls flat to barely raised, whereas individuals from the east side (stations Mk03, Mk04, Mk19 and Mk22) exhibit a depressed spire for the first four whorls (
<figureCitation id="32BD2A09FFFEFFEB56AFF886FDA8F8B5" box="[435,518,1842,1867]" captionStart="FIGURE 27" captionStartId="45.[151,250,1857,1879]" captionTargetBox="[151,1436,193,1834]" captionTargetId="figure@45.[151,1436,193,1836]" captionTargetPageId="45" captionText="FIGURE 27. Pseudolibera matthieui sp. nov. A C. Holotype (MNHN 26531), apical views; A. General view; B. Sculpture of the protoconch and early teleoconch; C. Sculpture of the late teleoconch; D. Umbilical view of dissected specimen (station Mk 13), showing the full extent of the bifurcated portion of the parietal barrier; red dashed line indicates the position of the aperture; E. Specimen from station Mk 19, with the first four whorls of the spire depressed; Scale bars: A, D = 2 mm; B, C = 0.4 mm; E = 5 mm." httpUri="https://zenodo.org/record/285680/files/figure.png" pageId="44" pageNumber="45">Fig. 27</figureCitation>
E). Unfortunately, only a few specimens were found on the east coast and all but one are not fully grown, making the significance of the difference in initial growth difficult to assess. Differences in coloration and sculpture between individuals from the west and east sides appear to be minor.
</paragraph>
</subSubSection>
<subSubSection id="E29C6507FFFEFFEB57DDF82AFBCDF849" box="[193,1123,1950,1975]" pageId="44" pageNumber="45" type="etymology">
<paragraph id="AA39368CFFFEFFEB57DDF82AFBCDF849" blockId="44.[151,1437,258,1975]" box="[193,1123,1950,1975]" pageId="44" pageNumber="45">
<emphasis id="98F2EA9EFFFEFFEB57DDF82AFEE9F849" bold="true" box="[193,327,1950,1975]" pageId="44" pageNumber="45">Etymology.</emphasis>
This species is dedicated to Matthieu Fontaine, son of the third author.
</paragraph>
</subSubSection>
</treatment>
</document>