199 lines
23 KiB
XML
199 lines
23 KiB
XML
<document id="64A25C52CDAF5515F1B2FB27EE804D8D" ID-DOI="10.1206/0003-0090(2000)244<0001:MOTRJA>2.0.CO;2" ID-ISSN="0003-0090" ID-Zenodo-Dep="5347311" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1630203687125" checkinUser="felipe" docAuthor="PATTON, JAMES L., DA SILVA, MARIA NAZARETH F. & MALCOLM, JAY R." docDate="2000" docId="039E01774BFCD8E9FC89368DB364F902" docLanguage="en" docName="B244.pdf" docOrigin="Bulletin of the American Museum of Natural History 2000 (244)" docSource="http://www.bioone.org/perlserv/?request=get-abstract&doi=10.1206%2F0003-0090(2000)244%3C0001%3AMOTRJA%3E2.0.CO%3B2" docStyle="DocumentStyle:2B34016C1EBFE58B07368F9517618743.3:BulAmeMusNatHis.2000-2010.journal_article.0cover.type1" docStyleId="2B34016C1EBFE58B07368F9517618743" docStyleName="BulAmeMusNatHis.2000-2010.journal_article.0cover.type1" docStyleVersion="3" docTitle="Echimyidae GRAY 1825" docType="treatment" docVersion="3" lastPageNumber="170" masterDocId="FFA7790F4B54D840FFB7335EB74EFFCF" masterDocTitle="Mammals Of The Rio Juruá And The Evolutionary And Ecological Diversification Of Amazonia" masterLastPageNumber="306" masterPageNumber="1" pageNumber="169" updateTime="1699183939665" updateUser="plazi" zenodo-license-document="CC-BY-4.0">
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<mods:title id="2D9AC7B996D441137480D1FF3C7F1066">Mammals Of The Rio Juruá And The Evolutionary And Ecological Diversification Of Amazonia</mods:title>
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<mods:namePart id="B5CC866D5A0FFF05862754B37598B24C">PATTON, JAMES L.</mods:namePart>
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<mods:namePart id="14A4ECA330C4054EEFEE483F09F71A8B">DA SILVA, MARIA NAZARETH F.</mods:namePart>
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<mods:namePart id="13F0AD8071C0C2AEACF20EA80557BBE1">MALCOLM, JAY R.</mods:namePart>
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<mods:title id="0772463C09E5C3409DA21BE950ECB72B">Bulletin of the American Museum of Natural History</mods:title>
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<mods:date id="B5E80DE4BD92A692296A2C129F86DFFA">2000</mods:date>
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<mods:identifier id="45B2438903D9AD58F6EE6C8C873DF0C0" type="DOI">10.1206/0003-0090(2000)244<0001:MOTRJA>2.0.CO;2</mods:identifier>
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<treatment id="039E01774BFCD8E9FC89368DB364F902" LSID="urn:lsid:plazi:treatment:039E01774BFCD8E9FC89368DB364F902" httpUri="http://treatment.plazi.org/id/039E01774BFCD8E9FC89368DB364F902" lastPageId="169" lastPageNumber="170" pageId="168" pageNumber="169">
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<subSubSection id="C32DE3EA4BFCD8E8FC89368DB3D9FA25" box="[830,1175,1491,1514]" pageId="168" pageNumber="169" type="nomenclature">
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<paragraph id="8B88B0614BFCD8E8FC89368DB3D9FA25" blockId="168.[830,1175,1491,1514]" box="[830,1175,1491,1514]" pageId="168" pageNumber="169">
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<heading id="D0C0070D4BFCD8E8FC89368DB3D9FA25" box="[830,1175,1491,1514]" centered="true" fontSize="10" level="2" pageId="168" pageNumber="169" reason="4">
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<taxonomicName id="4C37CBE24BFCD8E8FC89368DB3D9FA25" ID-CoL="9JX" authority="GRAY, 1825" authorityName="GRAY" authorityYear="1825" box="[830,1175,1491,1514]" class="Mammalia" family="Echimyidae" kingdom="Animalia" order="Rodentia" pageId="168" pageNumber="169" phylum="Chordata" rank="family">ECHIMYIDAE GRAY, 1825</taxonomicName>
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</heading>
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</paragraph>
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<subSubSection id="C32DE3EA4BFCD8E8FCB73558B3BDF902" pageId="168" pageNumber="169" type="discussion">
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<paragraph id="8B88B0614BFCD8E8FCB73558B3BDF902" blockId="168.[739,1267,1542,1741]" pageId="168" pageNumber="169">
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The terrestrial spiny rats and tree rats of the family
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<taxonomicName id="4C37CBE24BFCD8E8FCD6357AB4A2F9F4" authorityName="GRAY" authorityYear="1825" box="[865,1004,1572,1595]" class="Mammalia" family="Echimyidae" kingdom="Animalia" order="Rodentia" pageId="168" pageNumber="169" phylum="Chordata" rank="family">Echimyidae</taxonomicName>
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are second only to the
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<taxonomicName id="4C37CBE24BFCD8E8FD54351FB40BF997" authorityName="ILLIGER" authorityYear="1815" box="[739,837,1601,1624]" class="Mammalia" family="Muridae" kingdom="Animalia" order="Rodentia" pageId="168" pageNumber="169" phylum="Chordata" rank="family">Muridae</taxonomicName>
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as the most diverse family of rodents within lowland Amazonian forests Some taxa, especially the terrestrial spiny rat genus
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<taxonomicName id="4C37CBE24BFCD8E8FC8635C7B4F4F97F" authorityName="Allen" authorityYear="1899" box="[817,954,1689,1712]" class="Mammalia" family="Echimyidae" genus="Proechimys" kingdom="Animalia" order="Rodentia" pageId="168" pageNumber="169" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFCD8E8FC8635C7B4F4F97F" box="[817,954,1689,1712]" italics="true" pageId="168" pageNumber="169">Proechimys</emphasis>
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</taxonomicName>
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, are also among the most abundant in any local mammalian commu
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</paragraph>
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</subSubSection>
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<subSubSection id="C32DE3EA4BFDD8E9FF10339FB364F902" pageId="169" pageNumber="170" type="description">
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<paragraph id="8B88B0614BFDD8E9FF10339FB514FEFF" blockId="169.[167,696,193,1741]" pageId="169" pageNumber="170">nity. On the other hand, virtually all arboreal genera are poorly represented in museum collections, due either to inadequate sampling of the canopy or to true rarity.</paragraph>
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<paragraph id="8B88B0614BFDD8E9FF733268B791FBE4" blockId="169.[167,696,193,1741]" pageId="169" pageNumber="170">
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We encountered five genera of echimyids in the Rio Juruá basin: eight species of
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<taxonomicName id="4C37CBE24BFDD8E9FDC2320AB7B6FE47" authorityName="Allen" authorityYear="1899" class="Mammalia" family="Echimyidae" genus="Proechimys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FDC2320AB7B6FE47" italics="true" pageId="169" pageNumber="170">Proechimys</emphasis>
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</taxonomicName>
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(see da Silva, 1995, 1998); two species of the spiny tree rat,
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<taxonomicName id="4C37CBE24BFDD8E9FE6132D1B50CFE69" authorityName="Wagner" authorityYear="1845" box="[470,578,399,422]" class="Mammalia" family="Echimyidae" genus="Mesomys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FE6132D1B50CFE69" box="[470,578,399,422]" italics="true" pageId="169" pageNumber="170">Mesomys</emphasis>
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</taxonomicName>
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; two species of bamboo rats,
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<taxonomicName id="4C37CBE24BFDD8E9FE0232F2B570FE0C" authorityName="I. Geoffroy Saint-Hilaire" authorityYear="1838" box="[437,574,428,451]" class="Mammalia" family="Echimyidae" genus="Dactylomys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FE0232F2B570FE0C" box="[437,574,428,451]" italics="true" pageId="169" pageNumber="170">Dactylomys</emphasis>
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</taxonomicName>
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; and one species each of the rednosed tree rat,
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<taxonomicName id="4C37CBE24BFDD8E9FDCD3297B7ADFE31" authorityName="Husson" authorityYear="1978" class="Mammalia" family="Echimyidae" genus="Makalata" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FDCD3297B7ADFE31" italics="true" pageId="169" pageNumber="170">Makalata</emphasis>
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</taxonomicName>
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, and brushtailed rat,
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<taxonomicName id="4C37CBE24BFDD8E9FE5F32B9B50CFE31" authorityName="Wagner" authorityYear="1845" box="[488,578,487,510]" class="Mammalia" family="Echimyidae" genus="Isothrix" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FE5F32B9B50CFE31" box="[488,578,487,510]" italics="true" pageId="169" pageNumber="170">Isothrix</emphasis>
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</taxonomicName>
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.
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<taxonomicName id="4C37CBE24BFDD8E9FDE632B9B79AFDD4" authorityName="Allen" authorityYear="1899" class="Mammalia" family="Echimyidae" genus="Proechimys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FDE632B9B79AFDD4" italics="true" pageId="169" pageNumber="170">Proechimys</emphasis>
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</taxonomicName>
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were exceedingly numerous at all sites, generally the most common of all mammals trapped. Nearly 40% of our specimens were of this genus. We heard the distinctive nocturnal calls of
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<taxonomicName id="4C37CBE24BFDD8E9FEE23127B690FD5F" authorityName="I. Geoffroy Saint-Hilaire" authorityYear="1838" box="[341,478,633,656]" class="Mammalia" family="Echimyidae" genus="Dactylomys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FEE23127B690FD5F" box="[341,478,633,656]" italics="true" pageId="169" pageNumber="170">Dactylomys</emphasis>
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</taxonomicName>
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at most sites, and all along the river during travel periods, but few specimens were acquired, and none in our traps.
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<taxonomicName id="4C37CBE24BFDD8E9FE9D318FB6D8FD27" authorityName="Wagner" authorityYear="1845" box="[298,406,721,744]" class="Mammalia" family="Echimyidae" genus="Mesomys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FE9D318FB6D8FD27" box="[298,406,721,744]" italics="true" pageId="169" pageNumber="170">Mesomys</emphasis>
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</taxonomicName>
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were among the more common members of the canopy community, as ascertained by our platform trapping program.
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<taxonomicName id="4C37CBE24BFDD8E9FF4E3077B61DFC8F" authorityName="Wagner" authorityYear="1845" box="[249,339,809,832]" class="Mammalia" family="Echimyidae" genus="Isothrix" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FF4E3077B61DFC8F" box="[249,339,809,832]" italics="true" pageId="169" pageNumber="170">Isothrix</emphasis>
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</taxonomicName>
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was considerably less common, yet encountered routinely at most sites, both captured in our canopy traps or observed at the entrances of treehole nests. Finally,
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<taxonomicName id="4C37CBE24BFDD8E9FF4330C1B62DFC79" authorityName="Husson" authorityYear="1978" box="[244,355,927,950]" class="Mammalia" family="Echimyidae" genus="Makalata" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FF4330C1B62DFC79" box="[244,355,927,950]" italics="true" pageId="169" pageNumber="170">Makalata</emphasis>
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</taxonomicName>
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was uncommon throughout the river, as individuals were only rarely captured by any means and it was never seen at night while hunting, unlike the other arboreal taxa.
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</paragraph>
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<paragraph id="8B88B0614BFDD8E9FF73376FB651F95C" blockId="169.[167,696,193,1741]" pageId="169" pageNumber="170">
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Generic limits and relationships among echimyids are poorly resolved for the most part.
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<collectingRegion id="49F37E834BFDD8E9FF523732B654FB4C" box="[229,282,1132,1155]" country="Venezuela" name="Lara" pageId="169" pageNumber="170">Lara</collectingRegion>
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et al. (1996) argue that the extant generic lineages diverged nearly simultaneously from a common ancestor in the Miocene. Thus, the rapidity of this early radiation, coupled with combinations of uniquely derived traits and broadly shared primitive ones, has resulted in considerable confusion in the diagnosis of genera and in the allocation of species to them. The traditional separation of extant genera into three subfamilies (summarized in Woods, 1993)—the Dactylomyinae (
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<taxonomicName id="4C37CBE24BFDD8E9FEFF36F1B698FA09" authorityName="I. Geoffroy Saint-Hilaire" authorityYear="1838" box="[328,470,1455,1478]" class="Mammalia" family="Echimyidae" genus="Dactylomys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FEFF36F1B698FA09" box="[328,470,1455,1478]" italics="true" pageId="169" pageNumber="170">Dactylomys</emphasis>
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</taxonomicName>
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,
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<taxonomicName id="4C37CBE24BFDD8E9FE5936F1B5FEFA09" authorityName="Jentink" authorityYear="1891" box="[494,688,1455,1478]" class="Mammalia" family="Echimyidae" genus="Kannabateomys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FE5936F1B5FEFA09" box="[494,688,1455,1478]" italics="true" pageId="169" pageNumber="170">Kannabateomys</emphasis>
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</taxonomicName>
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, and
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<emphasis id="B9436C734BFDD8E9FF693692B61BFA2C" box="[222,341,1484,1507]" italics="true" pageId="169" pageNumber="170">Ollalamys</emphasis>
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), Echimyinae (
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<taxonomicName id="4C37CBE24BFDD8E9FDA33692B538FA2C" authorityName="G. Cuvier" authorityYear="1809" box="[532,630,1484,1507]" class="Mammalia" family="Echimyidae" genus="Echimys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FDA33692B538FA2C" box="[532,630,1484,1507]" italics="true" pageId="169" pageNumber="170">Echimys</emphasis>
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</taxonomicName>
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,
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<taxonomicName id="4C37CBE24BFDD8E9FD3D3692B790F9CF" authorityName="Wagner" authorityYear="1845" class="Mammalia" family="Echimyidae" genus="Isothrix" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FD3D3692B790F9CF" italics="true" pageId="169" pageNumber="170">Isothrix</emphasis>
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</taxonomicName>
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,
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<taxonomicName id="4C37CBE24BFDD8E9FF4536B7B62FF9CF" authorityName="Husson" authorityYear="1978" box="[242,353,1513,1536]" class="Mammalia" family="Echimyidae" genus="Makalata" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FF4536B7B62FF9CF" box="[242,353,1513,1536]" italics="true" pageId="169" pageNumber="170">Makalata</emphasis>
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</taxonomicName>
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, and
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<taxonomicName id="4C37CBE24BFDD8E9FE1936B7B55CF9CF" box="[430,530,1513,1536]" class="Mammalia" family="Echimyidae" genus="Nelomys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FE1936B7B55CF9CF" box="[430,530,1513,1536]" italics="true" pageId="169" pageNumber="170">Nelomys</emphasis>
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</taxonomicName>
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), and
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<taxonomicName id="4C37CBE24BFDD8E9FDDF36B7B64EF9D2" authorityName="RUSCONI" authorityYear="1935" class="Mammalia" family="Echimyidae" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="190" phylum="Chordata" rank="subFamily" subFamily="Eumysopinae">Eumysopinae</taxonomicName>
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(
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<taxonomicName id="4C37CBE24BFDD8E9FEAE3559B6C1F9D1" authorityName="J. A. Allen" authorityYear="1908" box="[281,399,1543,1566]" class="Mammalia" family="Echimyidae" genus="Hoplomys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FEAE3559B6C1F9D1" box="[281,399,1543,1566]" italics="true" pageId="169" pageNumber="170">Hoplomys</emphasis>
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</taxonomicName>
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,
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<taxonomicName id="4C37CBE24BFDD8E9FE123559B55FF9D1" authorityName="Wagner" authorityYear="1845" box="[421,529,1543,1566]" class="Mammalia" family="Echimyidae" genus="Mesomys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
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<emphasis id="B9436C734BFDD8E9FE123559B55FF9D1" box="[421,529,1543,1566]" italics="true" pageId="169" pageNumber="170">Mesomys</emphasis>
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</taxonomicName>
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,
|
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<taxonomicName id="4C37CBE24BFDD8E9FD903559B5FEF9D1" authorityName="Allen" authorityYear="1899" box="[551,688,1543,1566]" class="Mammalia" family="Echimyidae" genus="Proechimys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
|
||
<emphasis id="B9436C734BFDD8E9FD903559B5FEF9D1" box="[551,688,1543,1566]" italics="true" pageId="169" pageNumber="170">Proechimys</emphasis>
|
||
</taxonomicName>
|
||
, and
|
||
<taxonomicName id="4C37CBE24BFDD8E9FF6B357AB604F9F4" authorityName="Thomas" authorityYear="1921" box="[220,330,1572,1595]" class="Mammalia" family="Echimyidae" genus="Trinomys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
|
||
<emphasis id="B9436C734BFDD8E9FF6B357AB604F9F4" box="[220,330,1572,1595]" italics="true" pageId="169" pageNumber="170">Trinomys</emphasis>
|
||
</taxonomicName>
|
||
)—is not supported by molecular analyses of either proteins or mtDNA sequences (Patton and Reig, 1989;
|
||
<collectingRegion id="49F37E834BFDD8E9FDE83500B5DAF9BA" box="[607,660,1630,1653]" country="Venezuela" name="Lara" pageId="169" pageNumber="170">Lara</collectingRegion>
|
||
et al., 1996).
|
||
</paragraph>
|
||
<paragraph id="8B88B0614BFDD8E9FF7335C7B318FA44" blockId="169.[167,696,193,1741]" lastBlockId="169.[743,1272,193,1741]" pageId="169" pageNumber="170">
|
||
The difficulties in defining and diagnosing genera are exacerbated severalfold when one considers the problems of circumscribing species in nearly all of these groups. For example, the terrestrial spiny rats of the genus
|
||
<taxonomicName id="4C37CBE24BFDD8E9FD503247B43EFEFF" authorityName="Allen" authorityYear="1899" box="[743,880,281,304]" class="Mammalia" family="Echimyidae" genus="Proechimys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
|
||
<emphasis id="B9436C734BFDD8E9FD503247B43EFEFF" box="[743,880,281,304]" italics="true" pageId="169" pageNumber="170">Proechimys</emphasis>
|
||
</taxonomicName>
|
||
are among the most notorious of Neotropical taxa for posing difficulties in the recognition of species boundaries. The confusion surrounding species recognition in this genus was aptly stated by Oldfield Thomas (1928: 262) some 70 years ago in his often quoted statement: ‘‘The bewildering instability of characters... makes it at present impossible to sort them according to locality into separate species, subspecies, or local races.’’ Nevertheless, great strides have been made in recent years in understanding the patterns of morphological character variation in this difficult genus (Patton and Gardner 1972; Gardner and Emmons, 1984; Patton 1987; Aguilera and Corti, 1994; da Silva 1995, 1998). The number of actual species of
|
||
<taxonomicName id="4C37CBE24BFDD8E9FCBD3052B4DDFCEC" authorityName="Allen" authorityYear="1899" box="[778,915,780,803]" class="Mammalia" family="Echimyidae" genus="Proechimys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
|
||
<emphasis id="B9436C734BFDD8E9FCBD3052B4DDFCEC" box="[778,915,780,803]" italics="true" pageId="169" pageNumber="170">Proechimys</emphasis>
|
||
</taxonomicName>
|
||
, including those sympatric at single sites, remains underappreciated for the most part, and we know little or nothing about even the most simple ecological relationships among them (but see Emmons 1982; Malcolm, 1992). As documented by da Silva (1995, 1998), at least eight species of
|
||
<taxonomicName id="4C37CBE24BFDD8E9FD503087B43EFC3F" authorityName="Allen" authorityYear="1899" box="[743,880,985,1008]" class="Mammalia" family="Echimyidae" genus="Proechimys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
|
||
<emphasis id="B9436C734BFDD8E9FD503087B43EFC3F" box="[743,880,985,1008]" italics="true" pageId="169" pageNumber="170">Proechimys</emphasis>
|
||
</taxonomicName>
|
||
are present along the Rio Jurua´ This is double the number we expected based on the prior work by one of us in adjacent
|
||
<collectingCountry id="F320F0F14BFDD8E9FD50376FB452FB87" box="[743,796,1073,1096]" name="Peru" pageId="169" pageNumber="170">Perú</collectingCountry>
|
||
(Patton and Gardner, 1972; Patton 1987). As we also document below, and as already alluded to in earlier publications on this fauna (da Silva and Patton, 1993, 1998 Patton et al., 1994, 1996a), additional species of
|
||
<taxonomicName id="4C37CBE24BFDD8E9FCB8379AB4D6FB14" authorityName="Allen" authorityYear="1899" box="[783,920,1220,1243]" class="Mammalia" family="Echimyidae" genus="Proechimys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
|
||
<emphasis id="B9436C734BFDD8E9FCB8379AB4D6FB14" box="[783,920,1220,1243]" italics="true" pageId="169" pageNumber="170">Proechimys</emphasis>
|
||
</taxonomicName>
|
||
and other echimyid genera can be recognized elsewhere in Amazonia based on the Rio Juruá materials. One of these, a
|
||
<taxonomicName id="4C37CBE24BFDD8E9FCFE3642B4FBFAFC" authorityName="Wagner" authorityYear="1845" box="[841,949,1308,1331]" class="Mammalia" family="Echimyidae" genus="Mesomys" kingdom="Animalia" order="Rodentia" pageId="169" pageNumber="170" phylum="Chordata" rank="genus">
|
||
<emphasis id="B9436C734BFDD8E9FCFE3642B4FBFAFC" box="[841,949,1308,1331]" italics="true" pageId="169" pageNumber="170">Mesomys</emphasis>
|
||
</taxonomicName>
|
||
, appears to be unknown to science, and we describe it here. For the others, we assign existing names in the appropriate generic accounts, below.
|
||
</paragraph>
|
||
<paragraph id="8B88B0614BFDD8E9FCB336CFB364F902" blockId="169.[743,1272,193,1741]" pageId="169" pageNumber="170">The genera of echimyids present in the Rio Jurua´, indeed throughout much of Amazonia are each recognizable by a combination of external (spinose or nonspinose fur, brushy or naked tail) and craniodental (shape of the interorbital region; development of supraorbital ledges; laminate or nonlaminate cheekteeth; parallel or diverging maxillary toothrows) features. In the accounts below, we describe and figure each taxon that we found within the Rio Juruá basin.</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |