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<document id="F1CB0A99199904FCD04E7BF14156EA9E" ID-CLB-Dataset="7388" ID-DOI="10.11646/zootaxa.4951.3.2" ID-GBIF-Dataset="835cdd49-c45d-433e-a0c2-6422c3167ff4" ID-ISSN="1175-5326" ID-Zenodo-Dep="4668145" ID-ZooBank="C6CF6C94-2CF6-4E4E-94D2-B4787E19F6B1" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1617778258578" checkinUser="plazi" docAuthor="Mistretta, Brittany A., Giovas, Christina M., Weksler, Marcelo &amp; Turvey, Samuel T." docDate="2021" docId="03F5C04F1935AE7B05E8FD5314E68DCF" docLanguage="en" docName="zootaxa.4951.3.2.pdf" docOrigin="Zootaxa 4951 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Megalomys camerhogne Mistretta &amp; Giovas &amp; Weksler &amp; Turvey 2021, sp. nov." docType="treatment" docVersion="8" lastPageNumber="445" masterDocId="FFCCB837193CAE70057FFFDC16158C1E" masterDocTitle="Extinct insular oryzomyine rice rats (Rodentia: Sigmodontinae) from the Grenada Bank, southern Caribbean" masterLastPageNumber="460" masterPageNumber="434" pageNumber="443" updateTime="1698936096719" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="6EDF602E8035111E539BC10D3B1941C3">Extinct insular oryzomyine rice rats (Rodentia: Sigmodontinae) from the Grenada Bank, southern Caribbean</mods:title>
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<mods:namePart id="754BD95A48715080DC34640D21AE3D99">Mistretta, Brittany A.</mods:namePart>
<mods:affiliation id="2127FFF5F564C1AC0B6833C81A066A07">Environmental Archaeology Program, Florida Museum of Natural History, FL 32611, USA</mods:affiliation>
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<mods:namePart id="9ACD625246BAF044A8455B4E8C366C58">Giovas, Christina M.</mods:namePart>
<mods:affiliation id="40CA2B1D61BF7B06F15E4B51CB8CE25C">Department of Archaeology, Simon Fraser University, Burnaby, BC V 5 A 1 S 6, Canada</mods:affiliation>
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<mods:namePart id="1FCC91D423A6F4AEB106CFB85FE0A1B4">Weksler, Marcelo</mods:namePart>
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<mods:affiliation id="A3FF2E4567C10E355C50F4DE15DAB106">Departamento de Vertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, 20940 - 040 Rio de Janeiro, RJ, Brazil MW: https: // orcid. org / 0000 - 0001 - 8111 - 4779</mods:affiliation>
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<mods:namePart id="DF9201036F4EFCF855F84DC599C0564B">Turvey, Samuel T.</mods:namePart>
<mods:affiliation id="46D9F83D2CF8F3498B651F08663B8DDD">Institute of Zoology, Zoological Society of London, London NW 1 4 RY, UK</mods:affiliation>
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<mods:number id="1C84507B7529EAB41FD388CE4154B980">4951</mods:number>
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<treatment id="03F5C04F1935AE7B05E8FD5314E68DCF" ID-DOI="http://doi.org/10.5281/zenodo.4684615" ID-GBIF-Taxon="181003266" ID-Zenodo-Dep="4684615" LSID="urn:lsid:plazi:treatment:03F5C04F1935AE7B05E8FD5314E68DCF" httpUri="http://treatment.plazi.org/id/03F5C04F1935AE7B05E8FD5314E68DCF" lastPageId="11" lastPageNumber="445" pageId="9" pageNumber="443">
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<heading id="D0ABC6351935AE7905E8FD5314318EB7" bold="true" box="[151,548,655,682]" fontSize="11" level="1" pageId="9" pageNumber="443" reason="1">
<emphasis id="B928AD4B1935AE7905E8FD5314318EB7" bold="true" box="[151,548,655,682]" pageId="9" pageNumber="443">
<taxonomicName id="4C5C0ADA1935AE7905E8FD5317AA8EB4" authority="Mistretta &amp; Giovas &amp; Weksler &amp; Turvey, 2021" authorityName="Mistretta &amp; Giovas &amp; Weksler &amp; Turvey" authorityYear="2021" box="[151,447,655,682]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="9" pageNumber="443" phylum="Chordata" rank="species" species="camerhogne" status="sp. nov.">
<emphasis id="B928AD4B1935AE7905E8FD5317AA8EB4" bold="true" box="[151,447,655,682]" italics="true" pageId="9" pageNumber="443">Megalomys camerhogne</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A21B10301935AE7904B9FD5314318EB7" box="[454,548,655,681]" pageId="9" pageNumber="443" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
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<emphasis id="B928AD4B1935AE7905E8FD0B171E8EEF" bold="true" box="[151,267,727,753]" pageId="9" pageNumber="443">
<typeStatus id="54E7CFFB1935AE7905E8FD0B17138EEF" box="[151,262,727,753]" pageId="9" pageNumber="443" type="holotype">Holotype</typeStatus>
.
</emphasis>
<collectionCode id="ED4DE99C1935AE79046DFD0B17468EEF" box="[274,339,727,753]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
<specimenCode id="DBFAD9221935AE790426FD0B176E8EEF" box="[345,379,727,753]" collectionCode="GNM" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">A1</specimenCode>
-E-10-F1.S2, left mandible with m1 (
<figureCitation id="13676DDC1935AE790664FD0B15B08EEC" box="[795,933,727,754]" captionStart="FIGURE 5" captionStartId="9.[151,250,1958,1982]" captionTargetBox="[153,1434,1248,1933]" captionTargetId="figure-222@9.[151,1435,1245,1934]" captionTargetPageId="9" captionText="FIGURE 5. Megalomys camerhogne sp. nov. from Pearls, Grenada: ac, GNM A1-E-10-F1.S2, left mandible with m1 (holotype); df, GNM A1-E-10-F1.S1, edentulous right mandible. Left scale bar = 2 mm, right scale bar = 5 mm." figureDoi="http://doi.org/10.5281/zenodo.4668156" httpUri="https://zenodo.org/record/4668156/files/figure.png" pageId="9" pageNumber="443">Figure 5ac</figureCitation>
,
<figureCitation id="13676DDC1935AE7906CFFD0B12088EEC" box="[944,1053,727,754]" captionStart="FIGURE 6" captionStartId="10.[151,249,1953,1977]" captionTargetBox="[529,1057,1586,1928]" captionTargetId="figure-658@10.[529,1058,1586,1930]" captionTargetPageId="10" captionText="FIGURE 6. Comparison of m1 morphology between Megalomys species from the Lesser Antilles: a, Megalomys camerhogne sp. nov., GNM A1-E-10-F1.S2, left m1 (holotype); b, Megalomys desmarestii, NHMUK 55.12.24.201, right m1. Scale bars = 1 mm." figureDoi="http://doi.org/10.5281/zenodo.4668160" httpUri="https://zenodo.org/record/4668160/files/figure.png" pageId="9" pageNumber="443">Figure 6a</figureCitation>
).
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</paragraph>
<paragraph id="8BE371591935AE7905B8FD27173D8F40" blockId="9.[151,1437,727,1222]" pageId="9" pageNumber="443">
<emphasis id="B928AD4B1935AE7905B8FD2717768F0B" bold="true" box="[199,355,763,789]" pageId="9" pageNumber="443">Type locality.</emphasis>
<materialsCitation id="3B347B041935AE790417FD2717308F40" ID-GBIF-Occurrence="3071280301" collectorName="Unit E" country="Grenada" latitude="12.14573" location="Grenada" longLatPrecision="1" longitude="-61.613846" pageId="9" pageNumber="443" specimenCount="1">
Pearls, pre-Columbian archaeological site (associated AMS dates, 4001650 CE);
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(100110 centimetres below datum), dated to SaladoidBarrancoid period (200750 CE); Saint Andrew,
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(
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,
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)
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.
</paragraph>
<paragraph id="8BE371591935AE7905B8FCBB13548828" blockId="9.[151,1437,727,1222]" pageId="9" pageNumber="443">
<emphasis id="B928AD4B1935AE7905B8FCBB17598F9F" bold="true" box="[199,332,871,897]" pageId="9" pageNumber="443">Hypodigm.</emphasis>
Other studied material from Pearls: three edentulous right mandibles (
<collectionCode id="ED4DE99C1935AE79010EFCBB12A18F9F" box="[1137,1204,871,897]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
A1-E-10-F1.S1, S7, S8); two isolated m1s (
<collectionCode id="ED4DE99C1935AE7904D6FC5717F98FBB" box="[425,492,907,933]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
A1-E-10-F1.S28,
<collectionCode id="ED4DE99C1935AE7907BCFC5715118FBB" box="[707,772,907,933]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
A1-E-10-F1.S 30); one isolated incisor (
<collectionCode id="ED4DE99C1935AE79019BFC5713328FBB" box="[1252,1319,907,933]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
A1-E-10- F1.S24); one right humerus (
<collectionCode id="ED4DE99C1935AE7904A6FC7317EB8FD7" box="[473,510,943,969]" country="USA" lsid="urn:lsid:biocol.org:col:34858" name="Florida Museum of Natural History- Zoology, Paleontology and Paleobotany" pageId="9" pageNumber="443" type="Museum">UF</collectionCode>
164); two left radii (
<collectionCode id="ED4DE99C1935AE790799FC73153C8FD7" box="[742,809,943,969]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
A1-E-10-F1.S15, S16); two right radii (
<collectionCode id="ED4DE99C1935AE790196FC7313398FD7" box="[1257,1324,943,969]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
A1-E-10- F1.S20, S29); one right ulna (
<collectionCode id="ED4DE99C1935AE790492FC0F14258FF3" box="[493,560,979,1005]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
A1-E-10-F1.S17); one left femur (
<collectionCode id="ED4DE99C1935AE7906C0FC0F12178FF3" box="[959,1026,979,1005]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
A1-E-10-F1.S27); three right tibiae (
<collectionCode id="ED4DE99C1935AE7905E0FC2B16D1880F" box="[159,196,1015,1041]" country="USA" lsid="urn:lsid:biocol.org:col:34858" name="Florida Museum of Natural History- Zoology, Paleontology and Paleobotany" pageId="9" pageNumber="443" type="Museum">UF</collectionCode>
164,
<collectionCode id="ED4DE99C1935AE79047CFC2B1751880F" box="[259,324,1015,1041]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
A1-E-10-F1.S18, S23); two right calcanea (
<collectionCode id="ED4DE99C1935AE79064FFC2B1566880F" box="[816,883,1015,1041]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
A1-E-10-F1.S21, S22); one left ilium (
<collectionCode id="ED4DE99C1935AE790057FC2B137E880F" box="[1320,1387,1015,1041]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
A1- E-10-F1.S19); one right ilium (
<collectionCode id="ED4DE99C1935AE79048BFBC7140C882B" box="[500,537,1051,1077]" country="USA" lsid="urn:lsid:biocol.org:col:34858" name="Florida Museum of Natural History- Zoology, Paleontology and Paleobotany" pageId="9" pageNumber="443" type="Museum">UF</collectionCode>
164); two caudal vertebrae (
<collectionCode id="ED4DE99C1935AE790624FBC7158B882B" box="[859,926,1051,1077]" country="Sweden" httpUri="http://grbio.org/cool/m262-zrs7" name="Gothenburg Museum of Natural History (Goteborgs Naturhistoriska Museum)" pageId="9" pageNumber="443">GNM</collectionCode>
A1-E-10-F1.S25, S26) (
<figureCitation id="13676DDC1935AE7901CFFBC7131A8828" box="[1200,1295,1051,1078]" captionStart="FIGURE 5" captionStartId="9.[151,250,1958,1982]" captionTargetBox="[153,1434,1248,1933]" captionTargetId="figure-222@9.[151,1435,1245,1934]" captionTargetPageId="9" captionText="FIGURE 5. Megalomys camerhogne sp. nov. from Pearls, Grenada: ac, GNM A1-E-10-F1.S2, left mandible with m1 (holotype); df, GNM A1-E-10-F1.S1, edentulous right mandible. Left scale bar = 2 mm, right scale bar = 5 mm." figureDoi="http://doi.org/10.5281/zenodo.4668156" httpUri="https://zenodo.org/record/4668156/files/figure.png" pageId="9" pageNumber="443">Figure 5</figureCitation>
d-f).
</paragraph>
</subSubSection>
<subSubSection id="C34622D21935AE7905B8FBE315BC8860" pageId="9" pageNumber="443" type="distribution">
<paragraph id="8BE371591935AE7905B8FBE315BC8860" blockId="9.[151,1437,727,1222]" pageId="9" pageNumber="443">
<emphasis id="B928AD4B1935AE7905B8FBE317748847" bold="true" box="[199,353,1087,1113]" pageId="9" pageNumber="443">Distribution.</emphasis>
Known from the Holocene of
<collectingCountry id="F34B31C91935AE7907CCFBE315038847" box="[691,790,1087,1113]" name="Grenada" pageId="9" pageNumber="443">Grenada</collectingCountry>
. Only known so far from archaeological contexts at Pearls (SaladoidBarrancoid to SuazanTroumassoid periods, 4001650 CE).
</paragraph>
</subSubSection>
<subSubSection id="C34622D21935AE7905B8FB5B145D88D8" pageId="9" pageNumber="443" type="etymology">
<paragraph id="8BE371591935AE7905B8FB5B145D88D8" blockId="9.[151,1437,727,1222]" pageId="9" pageNumber="443">
<emphasis id="B928AD4B1935AE7905B8FB5B175B88BF" bold="true" box="[199,334,1159,1185]" pageId="9" pageNumber="443">Etymology.</emphasis>
From the Indigenous Caribbean (Arawakan) name for
<collectingCountry id="F34B31C91935AE7906A6FB5B122E88BF" box="[985,1083,1159,1185]" name="Grenada" pageId="9" pageNumber="443">Grenada</collectingCountry>
, in recognition of the islands people and their heritage; neuter noun.
</paragraph>
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<paragraph id="8BE371591935AE7905E8F87A13008BFF" blockId="9.[151,1436,1958,2018]" pageId="9" pageNumber="443">
<emphasis id="B928AD4B1935AE7905E8F87A170D8BA0" bold="true" box="[151,280,1958,1982]" pageId="9" pageNumber="443">FIGURE 5.</emphasis>
<taxonomicName id="4C5C0ADA1935AE79045BF87A14348BA0" authority="Mistretta &amp; Giovas &amp; Weksler &amp; Turvey, 2021" authorityName="Mistretta &amp; Giovas &amp; Weksler &amp; Turvey" authorityYear="2021" box="[292,545,1958,1982]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="9" pageNumber="443" phylum="Chordata" rank="species" species="camerhogne" status="sp. nov.">
<emphasis id="B928AD4B1935AE79045BF87A14348BA0" box="[292,545,1958,1982]" italics="true" pageId="9" pageNumber="443">Megalomys camerhogne</emphasis>
</taxonomicName>
<emphasis id="B928AD4B1935AE790753F87A14978BA0" bold="true" box="[556,642,1958,1982]" pageId="9" pageNumber="443">
<taxonomicNameLabel id="A21B10301935AE790753F87A14978BA0" box="[556,642,1958,1982]" pageId="9" pageNumber="443" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
from Pearls, Grenada:
<emphasis id="B928AD4B1935AE7906FDF87A15B28BA0" bold="true" box="[898,935,1958,1982]" pageId="9" pageNumber="443">ac</emphasis>
, GNM A1-E-10-F1.S2, left mandible with m1 (holotype);
<emphasis id="B928AD4B1935AE790471F81617248BFC" bold="true" box="[270,305,1994,2018]" pageId="9" pageNumber="443">df</emphasis>
, GNM A1-E-10-F1.S1, edentulous right mandible. Left scale bar = 2 mm, right scale bar = 5 mm.
</paragraph>
</caption>
<subSubSection id="C34622D21936AE7A05B8FF4A15348D40" pageId="10" pageNumber="444" type="diagnosis">
<paragraph id="8BE371591936AE7A05B8FF4A15348D40" blockId="10.[151,1437,150,1564]" pageId="10" pageNumber="444">
<emphasis id="B928AD4B1936AE7A05B8FF4A17578CAE" bold="true" box="[199,322,150,176]" pageId="10" pageNumber="444">Diagnosis.</emphasis>
<taxonomicName id="4C5C0ADA1936AE7A0434FF4B14748CAF" authority="Mistretta &amp; Giovas &amp; Weksler &amp; Turvey, 2021" authorityName="Mistretta &amp; Giovas &amp; Weksler &amp; Turvey" authorityYear="2021" box="[331,609,151,177]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="10" pageNumber="444" phylum="Chordata" rank="species" species="camerhogne" status="sp. nov.">
<emphasis id="B928AD4B1936AE7A0434FF4B14748CAF" box="[331,609,151,177]" italics="true" pageId="10" pageNumber="444">Megalomys camerhogne</emphasis>
</taxonomicName>
<emphasis id="B928AD4B1936AE7A0714FF4B14D28CAF" bold="true" box="[619,711,151,177]" pageId="10" pageNumber="444">
<taxonomicNameLabel id="A21B10301936AE7A0714FF4B14D28CAF" box="[619,711,151,177]" pageId="10" pageNumber="444" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
can be distinguished from other described
<taxonomicName id="4C5C0ADA1936AE7A01BFFF4B13548CAF" authorityName="Trouessart" authorityYear="1881" box="[1216,1345,151,177]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="10" pageNumber="444" phylum="Chordata" rank="genus">
<emphasis id="B928AD4B1936AE7A01BFFF4B13548CAF" box="[1216,1345,151,177]" italics="true" pageId="10" pageNumber="444">Megalomys</emphasis>
</taxonomicName>
species by the following combination of characters: m1 has four alveolar roots, m2 has three alveolar roots, and m3 has two alveolar roots; capsular process of lower incisor alveolus well-developed as conspicuous swollen projection; largest lower toothrow length and body mass estimate for any
<taxonomicName id="4C5C0ADA1936AE7A062AFF2315C38D07" authorityName="Trouessart" authorityYear="1881" box="[853,982,255,281]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="10" pageNumber="444" phylum="Chordata" rank="genus">
<emphasis id="B928AD4B1936AE7A062AFF2315C38D07" box="[853,982,255,281]" italics="true" pageId="10" pageNumber="444">Megalomys</emphasis>
</taxonomicName>
species; posterior margin of mandibular symphysis extends posteroventrally beyond margin of ramus as prominent point; entepicondylar foramen and supratrochlear foramen both absent on humerus (
<tableCitation id="C6DE44E21936AE7A07C3FE98151A8D40" box="[700,783,324,350]" captionStart="TABLE 1" captionStartId="8.[151,239,499,525]" captionTargetPageId="8" captionText="TABLE 1. Morphological comparisons between Megalomys camerhogne sp. nov. and other oryzomyine species from the Lesser Antilles." httpUri="http://table.plazi.org/id/DF2321D11934AE7805E8FE2F10428E13" pageId="10" pageNumber="444" tableUuid="DF2321D11934AE7805E8FE2F10428E13">Table 1</tableCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C34622D21936AE7A05B8FEBA12C588FA" pageId="10" pageNumber="444" type="description">
<paragraph id="8BE371591936AE7A05B8FEBA179D8DBA" blockId="10.[151,1437,150,1564]" pageId="10" pageNumber="444">
<emphasis id="B928AD4B1936AE7A05B8FEBA174C8D9E" bold="true" box="[199,345,358,384]" pageId="10" pageNumber="444">Description.</emphasis>
Known only from incomplete skeletal material. Character numbering and character state coding from
<bibRefCitation id="EFCD0CA81936AE7A05ABFE5517918DBA" author="Weksler, M." box="[212,388,393,420]" pageId="10" pageNumber="444" pagination="1 - 149" refId="ref19127" refString="Weksler, M. (2006) Phylogenetic relationships of the oryzomyine rodents (Muroidea: Sigmodontinae): separate and combined analyses of morphological and molecular data. Bulletin of the American Museum of Natural History, 296, 1 - 149. https: // doi. org / 10.1206 / 0003 - 0090 (2006) 296 [0001: PROORM] 2.0. CO; 2" type="journal article" year="2006">Weksler (2006)</bibRefCitation>
.
</paragraph>
<paragraph id="8BE371591936AE7A05B8FE7012B28EC5" blockId="10.[151,1437,150,1564]" pageId="10" pageNumber="444">
<emphasis id="B928AD4B1936AE7A05B8FE7017278DD8" box="[199,306,428,454]" italics="true" pageId="10" pageNumber="444">Mandible</emphasis>
: Robust, broad and high. Coronoid process gently falciform, raised slightly above maximum height of broad, squared condylar process. Sigmoid notch rounded, deep and wide. Mandibular foramen large and elongated; at base of condylar process.Angular process very broad, with gently curved outline and well-defined inferior masseteric ridge reaching distal margin; masseteric fossa broad and deep. Capsular process of lower incisor alveolus welldeveloped as conspicuous swollen projection (
<emphasis id="B928AD4B1936AE7A07D9FDEB15878E4F" box="[678,914,567,593]" italics="true" pageId="10" pageNumber="444">character 45: state 2</emphasis>
). Mental foramen opens laterally to diastema, at body of mandible (
<emphasis id="B928AD4B1936AE7A04EEFD8514948E6D" box="[401,641,601,627]" italics="true" pageId="10" pageNumber="444">character 44: state 0</emphasis>
). Superior and inferior masseteric ridges converge anteriorly as open chevron, joining at their anteriormost point (
<emphasis id="B928AD4B1936AE7A07FDFDA0157D8E88" box="[642,872,636,662]" italics="true" pageId="10" pageNumber="444">character 46: state 0</emphasis>
). Confluence of masseteric crest horizontally level with mental foramen, and vertically aligned with anterior portion of m1 (
<emphasis id="B928AD4B1936AE7A06BBFD4312B88EA7" box="[964,1197,671,697]" italics="true" pageId="10" pageNumber="444">character 47: state 0</emphasis>
). Posterior margin of mandibular symphysis extends posteroventrally beyond margin of ramus as prominent point.
</paragraph>
<paragraph id="8BE371591936AE7A05B8FD3912028FEF" blockId="10.[151,1437,150,1564]" pageId="10" pageNumber="444">
<emphasis id="B928AD4B1936AE7A05B8FD39176E8EE0" box="[199,379,740,766]" italics="true" pageId="10" pageNumber="444">Lower dentition</emphasis>
: Molars bunodont and brachydont (
<emphasis id="B928AD4B1936AE7A0668FD3812128EE0" box="[791,1031,740,766]" italics="true" pageId="10" pageNumber="444">character 54: state 0</emphasis>
). Labial flexi closed off by cingula (
<emphasis id="B928AD4B1936AE7A05DEFCDB179E8F3F" box="[161,395,775,801]" italics="true" pageId="10" pageNumber="444">character 55: state 0</emphasis>
). First lower molar (m1) with two large roots and two accessory central roots (
<emphasis id="B928AD4B1936AE7A007CFCDB16F78F5D" italics="true" pageId="10" pageNumber="444">character 50: state 2</emphasis>
). Anteroconid undivided; containing anteromedian fossettid (
<emphasis id="B928AD4B1936AE7A06E4FCF5129D8F5D" box="[923,1160,809,835]" italics="true" pageId="10" pageNumber="444">character 70: state 1</emphasis>
). Anterolabial cingulum present (
<emphasis id="B928AD4B1936AE7A0582FC9017E18F78" box="[253,500,844,870]" italics="true" pageId="10" pageNumber="444">character 71: state 1</emphasis>
); protoflexid narrowly compressed labially, with bifurcated apex, and obliquely mesiolinguad, almost reaching anteromedian fossettid. Hypoflexid transverse, narrow and deep. Small, low ectostylid present; ectolophid absent (
<emphasis id="B928AD4B1936AE7A04B7FC4D14BA8FB5" box="[456,687,913,939]" italics="true" pageId="10" pageNumber="444">character 72: state 0</emphasis>
). Metaflexid short and narrow. Mesolophid and mesostylid present, connected to entoconid by lingual cingulum (
<emphasis id="B928AD4B1936AE7A07D8FC68158E8FD0" box="[679,923,948,974]" italics="true" pageId="10" pageNumber="444">character 73: state 0</emphasis>
). Posteroflexid long and outlines entoconid. Metaconid and entoconid subquadrate, protoconid and hypoconid subtriangular.
</paragraph>
<paragraph id="8BE371591936AE7A05B8FC25137B8829" blockId="10.[151,1437,150,1564]" pageId="10" pageNumber="444">
Second and third lower molars (m2 and m3) not preserved in available material, but root condition can be diagnosed from alveolar configuration: m2 with three alveolar roots (
<emphasis id="B928AD4B1936AE7A0668FBC015EE8828" box="[791,1019,1052,1078]" italics="true" pageId="10" pageNumber="444">character 51: state 1</emphasis>
), and m3 with two alveolar roots.
</paragraph>
<paragraph id="8BE371591936AE7A05B8FBE315CE88DF" blockId="10.[151,1437,150,1564]" pageId="10" pageNumber="444">
<emphasis id="B928AD4B1936AE7A05B8FBE317578846" box="[199,322,1087,1112]" italics="true" pageId="10" pageNumber="444">Postcrania</emphasis>
: Available appendicular skeletal elements large. Entepicondylar foramen of humerus absent (
<emphasis id="B928AD4B1936AE7A05DEFBBD17908865" box="[161,389,1121,1147]" italics="true" pageId="10" pageNumber="444">character 82: state 1</emphasis>
). Supratrochlear foramen of humerus absent (
<emphasis id="B928AD4B1936AE7A0601FBBD12778865" box="[894,1122,1121,1147]" italics="true" pageId="10" pageNumber="444">character 83: state 0</emphasis>
). Femur has well-developed flattened lateral crest that extends almost halfway along diaphysis. Calcaneum shows gap between proximal edge of short trochlear process and posterior articular facet (
<emphasis id="B928AD4B1936AE7A079EFB7B15DE88DF" box="[737,971,1191,1217]" italics="true" pageId="10" pageNumber="444">character 84: state 1</emphasis>
).
</paragraph>
<paragraph id="8BE371591936AE7A05B8FB1512C588FA" blockId="10.[151,1437,150,1564]" box="[199,1232,1225,1252]" pageId="10" pageNumber="444">
Craniodental measurements given in
<tableCitation id="C6DE44E21936AE7A0718FB1514A888FD" box="[615,701,1225,1251]" captionStart="TABLE 2" captionStartId="11.[151,239,512,536]" captionTargetPageId="11" captionText="TABLE 2. Summary statistics for craniodental measurements of adult Megalomys camerhogne sp. nov. from Pearls, Grenada." httpUri="http://table.plazi.org/id/DF2321D11937AE7B05E8FDDC16EC8E22" pageId="10" pageNumber="444" tableUuid="DF2321D11937AE7B05E8FDDC16EC8E22">Table 2</tableCitation>
. Mean body mass estimated as
<quantity id="4CA4DCBC1936AE7A0161FB15124888FA" box="[1054,1117,1225,1252]" metricMagnitude="-1" metricUnit="kg" metricValue="3.4799999999999995" pageId="10" pageNumber="444" unit="g" value="348.0">348 g</quantity>
(
<tableCitation id="C6DE44E21936AE7A0114FB1512D788FA" box="[1131,1218,1225,1252]" captionStart="TABLE 5" captionStartId="18.[151,239,1484,1508]" captionTargetPageId="18" captionText="TABLE 5. Body mass estimates for extinct oryzomyine rice rats from the Lesser Antilles." httpUri="http://table.plazi.org/id/DF2321D1192EAE6205E8FA10124289FA" pageId="10" pageNumber="444" tableUuid="DF2321D1192EAE6205E8FA10124289FA">Table 5</tableCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C34622D21936AE7B05B8FB3014E68DCF" lastPageId="11" lastPageNumber="445" pageId="10" pageNumber="444" type="discussion">
<paragraph id="8BE371591936AE7A05B8FB3017CD8A02" blockId="10.[151,1437,150,1564]" pageId="10" pageNumber="444">
<emphasis id="B928AD4B1936AE7A05B8FB30172E8918" bold="true" box="[199,315,1260,1286]" pageId="10" pageNumber="444">Remarks.</emphasis>
The large
<collectingCountry id="F34B31C91936AE7A04BDFB3014348918" box="[450,545,1260,1286]" name="Grenada" pageId="10" pageNumber="444">Grenada</collectingCountry>
rice rat can be assigned confidently to
<taxonomicName id="4C5C0ADA1936AE7A017FFB3012948918" authorityName="Trouessart" authorityYear="1881" box="[1024,1153,1260,1286]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="10" pageNumber="444" phylum="Chordata" rank="genus">
<emphasis id="B928AD4B1936AE7A017FFB3012948918" box="[1024,1153,1260,1286]" italics="true" pageId="10" pageNumber="444">Megalomys</emphasis>
</taxonomicName>
based on the following characters: mental foramen lateral to diastema; lower incisor alveolus with well-developed capsular process; superior and inferior masseteric ridges join at their anteriormost point as an open chevron; confluence of masseteric crest horizontally level with mental foramen and vertically aligned with anterior portion of m1. In comparison to other rice rat genera from the main island chain of the Lesser Antilles, it differs from
<taxonomicName id="4C5C0ADA1936AE7A016BFAAB1288898E" authorityName="Turvey, Weksler, Morris &amp; Nokkert" authorityYear="2010" box="[1044,1181,1399,1424]" class="Mammalia" family="Cricetidae" genus="Pennatomys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rodentia" pageId="10" pageNumber="444" phylum="Chordata" rank="genus">
<emphasis id="B928AD4B1936AE7A016BFAAB1288898E" box="[1044,1181,1399,1424]" italics="true" pageId="10" pageNumber="444">Pennatomys</emphasis>
</taxonomicName>
in possessing superior and inferior masseteric ridges that join at their anteriormost point as an open chevron (the anterior portion of these ridges are conjoined as a single ridge in
<taxonomicName id="4C5C0ADA1936AE7A0724FA6114F189C8" authorityName="Turvey, Weksler, Morris &amp; Nokkert" authorityYear="2010" box="[603,740,1469,1494]" class="Mammalia" family="Cricetidae" genus="Pennatomys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rodentia" pageId="10" pageNumber="444" phylum="Chordata" rank="genus">
<emphasis id="B928AD4B1936AE7A0724FA6114F189C8" box="[603,740,1469,1494]" italics="true" pageId="10" pageNumber="444">Pennatomys</emphasis>
</taxonomicName>
) and in lacking a supratrochlear foramen on the humerus, and it differs from
<taxonomicName id="4C5C0ADA1936AE7A0446FA0317A489E7" authorityName="Brace, Turvey, Weksler, Hoogland &amp; Barnes" authorityYear="2015" box="[313,433,1503,1529]" class="Mammalia" family="Cricetidae" genus="Antillomys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rodentia" pageId="10" pageNumber="444" phylum="Chordata" rank="genus">
<emphasis id="B928AD4B1936AE7A0446FA0317A489E7" box="[313,433,1503,1529]" italics="true" pageId="10" pageNumber="444">Antillomys</emphasis>
</taxonomicName>
in possessing a greater number of roots on m1 and m2 (only two roots are present on both of these teeth in
<taxonomicName id="4C5C0ADA1936AE7A042FF9DD17DD8A05" authorityName="Brace, Turvey, Weksler, Hoogland &amp; Barnes" authorityYear="2015" box="[336,456,1537,1563]" class="Mammalia" family="Cricetidae" genus="Antillomys" higherTaxonomySource="GBIF" kingdom="Animalia" order="Rodentia" pageId="10" pageNumber="444" phylum="Chordata" rank="genus">
<emphasis id="B928AD4B1936AE7A042FF9DD17DD8A05" box="[336,456,1537,1563]" italics="true" pageId="10" pageNumber="444">Antillomys</emphasis>
</taxonomicName>
).
</paragraph>
<caption id="DF2321D11936AE7A05E8F87D13828BC3" ID-DOI="http://doi.org/10.5281/zenodo.4668160" ID-Zenodo-Dep="4668160" httpUri="https://zenodo.org/record/4668160/files/figure.png" pageId="10" pageNumber="444" startId="10.[151,249,1953,1977]" targetBox="[529,1057,1586,1928]" targetPageId="10">
<paragraph id="8BE371591936AE7A05E8F87D13828BC3" blockId="10.[151,1436,1953,2014]" pageId="10" pageNumber="444">
<emphasis id="B928AD4B1936AE7A05E8F87D17048BA7" bold="true" box="[151,273,1953,1977]" pageId="10" pageNumber="444">FIGURE 6.</emphasis>
Comparison of m1 morphology between
<taxonomicName id="4C5C0ADA1936AE7A07D1F87D15348BA7" authorityName="Trouessart" authorityYear="1881" box="[686,801,1953,1977]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="10" pageNumber="444" phylum="Chordata" rank="genus">
<emphasis id="B928AD4B1936AE7A07D1F87D15348BA7" box="[686,801,1953,1977]" italics="true" pageId="10" pageNumber="444">Megalomys</emphasis>
</taxonomicName>
species from the Lesser Antilles:
<emphasis id="B928AD4B1936AE7A0111F87E126F8BA4" bold="true" box="[1134,1146,1954,1978]" pageId="10" pageNumber="444">a</emphasis>
,
<taxonomicName id="4C5C0ADA1936AE7A01F9F87D136D8BA7" authority="Mistretta &amp; Giovas &amp; Weksler &amp; Turvey, 2021" authorityName="Mistretta &amp; Giovas &amp; Weksler &amp; Turvey" authorityYear="2021" box="[1158,1400,1953,1977]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="10" pageNumber="444" phylum="Chordata" rank="species" species="camerhogne" status="sp. nov.">
<emphasis id="B928AD4B1936AE7A01F9F87D136D8BA7" box="[1158,1400,1953,1977]" italics="true" pageId="10" pageNumber="444">Megalomys camerhogne</emphasis>
</taxonomicName>
<emphasis id="B928AD4B1936AE7A0001F87E16D78BC0" bold="true" pageId="10" pageNumber="444">
<taxonomicNameLabel id="A21B10301936AE7A0001F87E16D78BC0" pageId="10" pageNumber="444" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, GNM A1-E-10-F1.S2, left m1 (holotype);
<emphasis id="B928AD4B1936AE7A070BF81A14978BC0" bold="true" box="[628,642,1990,2014]" pageId="10" pageNumber="444">b</emphasis>
,
<taxonomicName id="4C5C0ADA1936AE7A07F1F81915F78BC3" authority=", NHMUK" authorityName="NHMUK" box="[654,994,1989,2013]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="10" pageNumber="444" phylum="Chordata" rank="species" species="desmarestii">
<emphasis id="B928AD4B1936AE7A07F1F819156D8BC3" box="[654,888,1989,2013]" italics="true" pageId="10" pageNumber="444">Megalomys desmarestii</emphasis>
, NHMUK
</taxonomicName>
55.12.24.201, right m1. Scale bars = 1 mm.
</paragraph>
</caption>
<paragraph id="8BE371591937AE7B05B8FF4B14E68DCF" blockId="11.[151,1437,151,465]" pageId="11" pageNumber="445">
The
<collectingCountry id="F34B31C91937AE7B0580FF4B174B8CAF" box="[255,350,151,177]" name="Grenada" pageId="11" pageNumber="445">Grenada</collectingCountry>
<taxonomicName id="4C5C0ADA1937AE7B0415FF4B17FE8CAF" authorityName="Trouessart" authorityYear="1881" box="[362,491,151,177]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="genus">
<emphasis id="B928AD4B1937AE7B0415FF4B17FE8CAF" box="[362,491,151,177]" italics="true" pageId="11" pageNumber="445">Megalomys</emphasis>
</taxonomicName>
differs from all previously described
<taxonomicName id="4C5C0ADA1937AE7B06D0FF4B12258CAF" authorityName="Trouessart" authorityYear="1881" box="[943,1072,151,177]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="genus">
<emphasis id="B928AD4B1937AE7B06D0FF4B12258CAF" box="[943,1072,151,177]" italics="true" pageId="11" pageNumber="445">Megalomys</emphasis>
</taxonomicName>
species in both morphological characteristics and available measurements. It differs morphologically in possessing four roots on m1 (three roots on m
<quantity id="4CA4DCBC1937AE7B05ABFF0316EE8CE7" box="[212,251,223,249]" metricMagnitude="-2" metricUnit="m" metricValue="2.54" pageId="11" pageNumber="445" unit="in" value="1.0">1 in</quantity>
<taxonomicName id="4C5C0ADA1937AE7B047DFF03179B8CE7" authorityName="Hopwood" authorityYear="1926" box="[258,398,223,249]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="species" species="audreyae">
<emphasis id="B928AD4B1937AE7B047DFF03170C8CE6" box="[258,281,223,248]" italics="true" pageId="11" pageNumber="445">M</emphasis>
.
<emphasis id="B928AD4B1937AE7B0458FF03179B8CE7" box="[295,398,223,249]" italics="true" pageId="11" pageNumber="445">audreyae</emphasis>
</taxonomicName>
); in possessing three roots on m2 and two roots on m3 (three roots on both m2 and m
<quantity id="4CA4DCBC1937AE7B0031FF0313628CE7" box="[1358,1399,223,249]" metricMagnitude="-2" metricUnit="m" metricValue="7.62" pageId="11" pageNumber="445" unit="in" value="3.0">3 in</quantity>
<taxonomicName id="4C5C0ADA1937AE7B0001FF0317028D03" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="species" species="desmarestii">
<emphasis id="B928AD4B1937AE7B0001FF0317028D03" italics="true" pageId="11" pageNumber="445">M. desmarestii</emphasis>
</taxonomicName>
and
<taxonomicName id="4C5C0ADA1937AE7B0431FEDF17A28D03" authorityName="St. Lucia" baseAuthorityName="Forsyth Major" baseAuthorityYear="1901" box="[334,439,259,285]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="species" species="luciae">
<emphasis id="B928AD4B1937AE7B0431FEDF17A28D03" box="[334,439,259,285]" italics="true" pageId="11" pageNumber="445">M. luciae</emphasis>
</taxonomicName>
; two roots on both m2 and m
<quantity id="4CA4DCBC1937AE7B067BFEDF153B8D03" box="[772,814,259,285]" metricMagnitude="-2" metricUnit="m" metricValue="7.62" pageId="11" pageNumber="445" unit="in" value="3.0">3 in</quantity>
<emphasis id="B928AD4B1937AE7B0641FEDF15408D02" box="[830,853,259,284]" italics="true" pageId="11" pageNumber="445">M</emphasis>
.
<taxonomicName id="4C5C0ADA1937AE7B0614FEDF15F48D02" authorityName="Hooijer" authorityYear="1959" box="[875,993,259,284]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="species" species="curazensis">
<emphasis id="B928AD4B1937AE7B0614FEDF15F48D02" box="[875,993,259,284]" italics="true" pageId="11" pageNumber="445">curazensis</emphasis>
</taxonomicName>
and
<taxonomicName id="4C5C0ADA1937AE7B0168FEDF12B88D02" authorityName="Turvey, Brace &amp; Weksler" authorityYear="2012" box="[1047,1197,259,284]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="species" species="georginae">
<emphasis id="B928AD4B1937AE7B0168FEDF12B88D02" box="[1047,1197,259,284]" italics="true" pageId="11" pageNumber="445">M. georginae</emphasis>
</taxonomicName>
), and in lacking both an entepicondylar foramen and a supratrochlear foramen on the humerus (foramina absent in
<taxonomicName id="4C5C0ADA1937AE7B01E5FEFB132B8D5F" box="[1178,1342,295,321]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="species" species="desmarestii">
<emphasis id="B928AD4B1937AE7B01E5FEFB12A48D5E" box="[1178,1201,295,320]" italics="true" pageId="11" pageNumber="445">M</emphasis>
.
<emphasis id="B928AD4B1937AE7B01C1FEFB132B8D5F" box="[1214,1342,295,321]" italics="true" pageId="11" pageNumber="445">desmarestii</emphasis>
</taxonomicName>
; present in
<emphasis id="B928AD4B1937AE7B05C1FE9716C08D7A" box="[190,213,331,356]" italics="true" pageId="11" pageNumber="445">M</emphasis>
.
<taxonomicName id="4C5C0ADA1937AE7B0593FE9717778D7A" authorityName="Hooijer" authorityYear="1959" box="[236,354,331,356]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="species" species="curazensis">
<emphasis id="B928AD4B1937AE7B0593FE9717778D7A" box="[236,354,331,356]" italics="true" pageId="11" pageNumber="445">curazensis</emphasis>
</taxonomicName>
and
<taxonomicName id="4C5C0ADA1937AE7B04E4FE9714248D7A" authorityName="Turvey, Brace &amp; Weksler" authorityYear="2012" box="[411,561,331,356]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="species" species="georginae">
<emphasis id="B928AD4B1937AE7B04E4FE9714248D7A" box="[411,561,331,356]" italics="true" pageId="11" pageNumber="445">M. georginae</emphasis>
</taxonomicName>
; condition unknown in
<taxonomicName id="4C5C0ADA1937AE7B063DFE9715B98D7B" authorityName="St. Lucia" baseAuthorityName="Forsyth Major" baseAuthorityYear="1901" box="[834,940,331,357]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="species" species="luciae">
<emphasis id="B928AD4B1937AE7B063DFE97154C8D7A" box="[834,857,331,356]" italics="true" pageId="11" pageNumber="445">M</emphasis>
.
<emphasis id="B928AD4B1937AE7B0617FE9715B98D7B" box="[872,940,331,357]" italics="true" pageId="11" pageNumber="445">luciae</emphasis>
</taxonomicName>
). It is also the largest known representative of
<taxonomicName id="4C5C0ADA1937AE7B05C8FEB3172D8D97" authorityName="Trouessart" authorityYear="1881" box="[183,312,367,393]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="genus">
<emphasis id="B928AD4B1937AE7B05C8FEB3172D8D97" box="[183,312,367,393]" italics="true" pageId="11" pageNumber="445">Megalomys</emphasis>
</taxonomicName>
, with the greatest available measurement for lower molar toothrow length in any other
<taxonomicName id="4C5C0ADA1937AE7B0064FEB313898D97" authorityName="Trouessart" authorityYear="1881" box="[1307,1436,367,393]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="genus">
<emphasis id="B928AD4B1937AE7B0064FEB313898D97" box="[1307,1436,367,393]" italics="true" pageId="11" pageNumber="445">Megalomys</emphasis>
</taxonomicName>
species (
<taxonomicName id="4C5C0ADA1937AE7B0588FE4F178E8DB3" box="[247,411,403,429]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="species" species="desmarestii">
<emphasis id="B928AD4B1937AE7B0588FE4F178E8DB3" box="[247,411,403,429]" italics="true" pageId="11" pageNumber="445">M. desmarestii</emphasis>
</taxonomicName>
,
<quantity id="4CA4DCBC1937AE7B04D8FE4E140E8DB3" box="[423,539,402,429]" metricMagnitude="-2" metricUnit="m" metricValue="1.035" pageId="11" pageNumber="445" unit="mm" value="10.35">10.35 mm</quantity>
;
<bibRefCitation id="EFCD0CA81937AE7B075BFE4F14FA8DB3" author="Turvey, S. T. &amp; Weksler, M. &amp; Brace, S." box="[548,751,403,429]" pageId="11" pageNumber="445" pagination="404 - 413" refId="ref18724" refString="Turvey, S. T., Weksler, M. &amp; Brace, S. (2012) A new species of recently extinct rice rat (Megalomys) from Barbados. Mammalian Biology, 77, 404 - 413. https: // doi. org / 10.1016 / j. mambio. 2012.03.005" type="journal article" year="2012">
Turvey
<emphasis id="B928AD4B1937AE7B0706FE4F14BC8DB3" box="[633,681,403,429]" italics="true" pageId="11" pageNumber="445">et al</emphasis>
. 2012
</bibRefCitation>
) corresponding to the lower end of the available measurement range for
<taxonomicName id="4C5C0ADA1937AE7B047BFE6B17A68DCF" authorityName="Mistretta &amp; Giovas &amp; Weksler &amp; Turvey" authorityYear="2021" box="[260,435,439,465]" class="Mammalia" family="Muridae" genus="Megalomys" kingdom="Animalia" order="Rodentia" pageId="11" pageNumber="445" phylum="Chordata" rank="species" species="camerhogne">
<emphasis id="B928AD4B1937AE7B047BFE6B17A68DCF" box="[260,435,439,465]" italics="true" pageId="11" pageNumber="445">M. camerhogne</emphasis>
</taxonomicName>
(
<quantity id="4CA4DCBC1937AE7B04BDFE6A14938DCF" box="[450,646,438,465]" metricMagnitude="-2" metricUnit="m" metricValue="1.051" metricValueMax="1.067" metricValueMin="1.035" pageId="11" pageNumber="445" unit="mm" value="10.51" valueMax="10.67" valueMin="10.35">10.3510.67 mm</quantity>
;
<tableCitation id="C6DE44E21937AE7B07EFFE6B14F38DCF" box="[656,742,439,465]" captionStart="TABLE 2" captionStartId="11.[151,239,512,536]" captionTargetPageId="11" captionText="TABLE 2. Summary statistics for craniodental measurements of adult Megalomys camerhogne sp. nov. from Pearls, Grenada." httpUri="http://table.plazi.org/id/DF2321D11937AE7B05E8FDDC16EC8E22" pageId="11" pageNumber="445" tableUuid="DF2321D11937AE7B05E8FDDC16EC8E22">Table 2</tableCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>