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<document id="C3ECB92159A404034FC5AECB072789C0" ID-DOI="10.1206/0003-0090(2000)244&lt;0001:MOTRJA&gt;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. &amp; MALCOLM, JAY R." docDate="2000" docId="039E01774B2BD8C1FF5E3703B419FA2C" 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&amp;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="Oecomys roberti" docType="treatment" docVersion="3" lastPageNumber="130" masterDocId="FFA7790F4B54D840FFB7335EB74EFFCF" masterDocTitle="Mammals Of The Rio Juruá And The Evolutionary And Ecological Diversification Of Amazonia" masterLastPageNumber="306" masterPageNumber="1" pageNumber="128" updateTime="1699183939665" updateUser="plazi" zenodo-license-document="CC-BY-4.0">
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<mods:title id="7891F6535DC05344E4FCF26C263BE348">Mammals Of The Rio Juruá And The Evolutionary And Ecological Diversification Of Amazonia</mods:title>
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<mods:namePart id="ACF980E1A463BB7E23511E012681A5D4">PATTON, JAMES L.</mods:namePart>
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<mods:namePart id="02A9B68F0FF17206ED0722B6BE67405F">DA SILVA, MARIA NAZARETH F.</mods:namePart>
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<mods:namePart id="83424B478B5671ED5999B14668574C6C">MALCOLM, JAY R.</mods:namePart>
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<treatment id="039E01774B2BD8C1FF5E3703B419FA2C" LSID="urn:lsid:plazi:treatment:039E01774B2BD8C1FF5E3703B419FA2C" httpUri="http://treatment.plazi.org/id/039E01774B2BD8C1FF5E3703B419FA2C" lastPageId="129" lastPageNumber="130" pageId="127" pageNumber="128">
<subSubSection id="C32DE3EA4B2BD83FFF5E3703B53AFBBB" box="[233,628,1117,1140]" pageId="127" pageNumber="128" type="nomenclature">
<paragraph id="8B88B0614B2BD83FFF5E3703B53AFBBB" blockId="127.[233,628,1117,1140]" box="[233,628,1117,1140]" pageId="127" pageNumber="128">
<heading id="D0C0070D4B2BD83FFF5E3703B53AFBBB" box="[233,628,1117,1140]" centered="true" fontSize="9" level="2" pageId="127" pageNumber="128" reason="2">
<taxonomicName id="4C37CBE24B2BD83FFF5E3703B53AFBBB" ID-CoL="74HTQ" authority="(Thomas, 1904)" baseAuthorityName="Thomas" baseAuthorityYear="1904" box="[233,628,1117,1140]" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="127" pageNumber="128" phylum="Chordata" rank="species" species="roberti">
<emphasis id="B9436C734B2BD83FFF5E3703B6E0FBBB" box="[233,430,1117,1140]" italics="true" pageId="127" pageNumber="128">Oecomys roberti</emphasis>
(Thomas, 1904)
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C32DE3EA4B2BD83FFF7337D7B785FAFC" pageId="127" pageNumber="128" type="materials_examined">
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<materialsCitation id="3B5FBA3C4B2BD83FFF7337D7B78FFB14" elevation="800" location="Santa Anna de Chapada" pageId="127" pageNumber="128" specimenCount="1" typeStatus="holotype">
<typeStatus id="548C0EC34B2BD83FFF7337D7B7B3FB50" box="[196,253,1161,1184]" pageId="127" pageNumber="128">TYPE</typeStatus>
LOCALITY: ‘‘
<location id="8EE8E6BA4B2BD83FFE2637D7B5FDFB6F" LSID="urn:lsid:plazi:treatment:039E01774B2BD8C1FF5E3703B419FA2C:8EE8E6BA4B2BD83FFE2637D7B5FDFB6F" box="[401,691,1161,1184]" name="Santa Anna de Chapada" pageId="127" pageNumber="128">Santa Anna de Chapada</location>
, a village situated at an altitude of about
<quantity id="4CCF1D844B2BD83FFD3C37F8B78FFB14" metricMagnitude="2" metricUnit="m" metricValue="8.0" pageId="127" pageNumber="128" unit="m" value="800.0">
<elevation id="001A57524B2BD83FFD3C37F8B78FFB14" metricMagnitude="2" metricUnit="m" metricValue="8.0" pageId="127" pageNumber="128" unit="m" value="800.0">800 m</elevation>
</quantity>
</materialsCitation>
;
<materialsCitation id="3B5FBA3C4B2BD83FFF62379AB789FAFC" collectorName="de Chapada &amp; N. E. Of Cuyaba &amp; Chapada dos Guimaraes" country="Brazil" location="Serra de Chapada" pageId="127" pageNumber="128" specimenCount="1" stateProvince="Mato Grosso" typeStatus="holotype">
on the
<location id="8EE8E6BA4B2BD83FFE81379AB559FB14" LSID="urn:lsid:plazi:treatment:039E01774B2BD8C1FF5E3703B419FA2C:8EE8E6BA4B2BD83FFE81379AB559FB14" box="[310,535,1220,1243]" country="Brazil" name="Serra de Chapada" pageId="127" pageNumber="128" stateProvince="Mato Grosso">
Serra
<collectorName id="26C2D5B74B2BD83FFE34379AB559FB14" box="[387,535,1220,1243]" pageId="127" pageNumber="128">de Chapada</collectorName>
</location>
, some thirty miles
<collectorName id="26C2D5B74B2BD83FFF5A37BFB6E6FB37" box="[237,424,1249,1272]" pageId="127" pageNumber="128">N.E. Of Cuyabá</collectorName>
[= Cuiaba´],’’
<collectorName id="26C2D5B74B2BD83FFDE637BFB616FADA" pageId="127" pageNumber="128">Chapada dos Guimarães</collectorName>
, Estado do
<collectingRegion id="49F37E834B2BD83FFE6937A0B536FADA" box="[478,632,1278,1301]" country="Brazil" name="Mato Grosso" pageId="127" pageNumber="128">Mato Grosso</collectingRegion>
,
<collectingCountry id="F320F0F14B2BD83FFD3437A0B789FAFC" name="Brazil" pageId="127" pageNumber="128">Brazil</collectingCountry>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C32DE3EA4B2BD8C0FF733667B69DFB72" lastPageId="128" lastPageNumber="129" pageId="127" pageNumber="128" type="description">
<paragraph id="8B88B0614B2BD83FFF733667B38FF960" blockId="127.[167,695,1161,1741]" lastBlockId="127.[743,1272,1000,1741]" pageId="127" pageNumber="128">
DESCRIPTION: This is the smallest of the three large­bodied species that occur within the Rio Juruá basin, averaging
<quantity id="4CCF1D844B2BD83FFD9A362AB5DDFA44" box="[557,659,1396,1419]" metricMagnitude="-1" metricUnit="m" metricValue="2.87" pageId="127" pageNumber="128" unit="mm" value="287.0">287 mm</quantity>
in total length and with a tail 127% of head and body length (table 29). The tail is clothed in fine, short hairs (two scale rows in length), but appears naked when viewed by eye, and only a very slight pencil of fur extends beyond tip. It is paler below than above; dorsal color light brown. The hind feet are short and broad, orangish in color above. The dorsal pelage is bright reddish orange; the venter is white at the midline from chin to anus, but with broad lateral bands of white­tipped, gray­based fur. Dorsal and ventral coloration are sharply demarcated. This species has a relatively long skull (fig. 85; CIL, 29.4 mm with relatively short and broad rostrum (11.2 × 6.3 mm, length to width); heavy supraorbital ledges diverge strongly and extend onto the parietals; upper incisors are opisthodont bullae are small and uninflated; tegmen tympani is not in contact with the squamosal hamular processes of squamosal are short and broad (although not as much as in
<taxonomicName id="4C37CBE24B2BD83FFB6C364DB475FA88" baseAuthorityName="Tomes" baseAuthorityYear="1860" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="127" pageNumber="128" phylum="Chordata" rank="species" species="bicolor">
<emphasis id="B9436C734B2BD83FFB6C364DB475FA88" italics="true" pageId="127" pageNumber="128">O bicolor</emphasis>
</taxonomicName>
), with subsquamosal foramen very small or completely closed; an alisphenoid strut is variably present (13 of 34 individuals at least on one side); the incisive foramen is short and teardrop in shape; the molar toothrows are relatively short (MTRL 5.0 mm) posterior palatal pits are small but often divided, at least on one side; the mesopterygoid fossa is relatively narrow, and usually square at its anterior end; sphenopalatine vacuities are occasionally present as narrow slots along the presphenoid; and the parapterygoid fossae appear deeply excised.
</paragraph>
<paragraph id="8B88B0614B2BD83FFCB335E8B390F902" blockId="127.[743,1272,1000,1741]" box="[772,1246,1718,1741]" pageId="127" pageNumber="128">SELECTED MEASUREMENTS: See table 29:</paragraph>
<paragraph id="8B88B0614BD4D8C0FF77339FB678FD04" blockId="128.[163,692,193,1741]" pageId="128" pageNumber="129">
NONGEOGRAPHIC VARIATION: As with
<taxonomicName id="4C37CBE24BD4D8C0FD20339FB7B9FF39" baseAuthorityName="Tomes" baseAuthorityYear="1860" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="128" pageNumber="129" phylum="Chordata" rank="species" species="bicolor">
<emphasis id="B9436C734BD4D8C0FD20339FB5E2FF17" box="[663,684,193,216]" italics="true" pageId="128" pageNumber="129">O</emphasis>
.
<emphasis id="B9436C734BD4D8C0FF143381B7B9FF39" box="[163,247,223,246]" italics="true" pageId="128" pageNumber="129">bicolor</emphasis>
</taxonomicName>
, this species also exhibits no sexual dimorphism in any external or cranial variable (
<emphasis id="B9436C734BD4D8C0FF533247B7BDFEFF" box="[228,243,281,304]" italics="true" pageId="128" pageNumber="129">p</emphasis>
&gt; 0.05 in all cases) although age contributes substantially to differences among individuals (table 32). Also, in a pattern similar to that found in
<taxonomicName id="4C37CBE24BD4D8C0FE13322FB56FFE47" baseAuthorityName="Tomes" baseAuthorityYear="1860" box="[420,545,369,392]" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="128" pageNumber="129" phylum="Chordata" rank="species" species="bicolor">
<emphasis id="B9436C734BD4D8C0FE13322FB6F7FE47" box="[420,441,369,392]" italics="true" pageId="128" pageNumber="129">O</emphasis>
.
<emphasis id="B9436C734BD4D8C0FE7A322FB56FFE47" box="[461,545,369,392]" italics="true" pageId="128" pageNumber="129">bicolor</emphasis>
</taxonomicName>
, these variables increase with advancing toothwear age (Pearson product moment correlation coefficients for variables that exhibit significant age effects are all positive, ranging from
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at
<emphasis id="B9436C734BD4D8C0FED4315AB63CFDD4" box="[355,370,516,539]" italics="true" pageId="128" pageNumber="129">p</emphasis>
&lt;0.05;
<geoCoordinate id="EE03D6A64BD4D8C0FE51315AB566FDD4" box="[486,552,516,539]" degrees="0.502" direction="north" orientation="latitude" pageId="128" pageNumber="129" precision="55" value="0.502">0.502</geoCoordinate>
<geoCoordinate id="EE03D6A64BD4D8C0FD9F315AB539FDD4" box="[552,631,516,539]" degrees="0.591" direction="west" orientation="longitude" pageId="128" pageNumber="129" precision="55" value="-0.591">–0.591</geoCoordinate>
at
<emphasis id="B9436C734BD4D8C0FD13315AB5FDFDD4" box="[676,691,516,539]" italics="true" pageId="128" pageNumber="129">p</emphasis>
&lt;0.01; and
<geoCoordinate id="EE03D6A64BD4D8C0FE8F317FB634FDF7" box="[312,378,545,568]" degrees="0.580" direction="north" orientation="latitude" pageId="128" pageNumber="129" precision="55" value="0.58">0.580</geoCoordinate>
<geoCoordinate id="EE03D6A64BD4D8C0FECC317FB682FDF7" box="[379,460,545,568]" degrees="0.742" direction="west" orientation="longitude" pageId="128" pageNumber="129" precision="55" value="-0.742">–0.742</geoCoordinate>
at
<emphasis id="B9436C734BD4D8C0FE45317FB54FFDF7" box="[498,513,545,568]" italics="true" pageId="128" pageNumber="129">p</emphasis>
&lt;0.001; table 32), reinforcing the conclusion that differences in age distributions should be considered when morphometric comparisons are to be made between localities for any species of
<taxonomicName id="4C37CBE24BD4D8C0FF7231EAB67EFD04" box="[197,304,692,715]" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="128" pageNumber="129" phylum="Chordata" rank="genus">
<emphasis id="B9436C734BD4D8C0FF7231EAB67EFD04" box="[197,304,692,715]" italics="true" pageId="128" pageNumber="129">Oecomys</emphasis>
</taxonomicName>
.
</paragraph>
<caption id="DF48E0E94BD4D8C0FD4A3126B40CFBA2" ID-DOI="http://doi.org/10.5281/zenodo.5347503" ID-Zenodo-Dep="5347503" httpUri="https://zenodo.org/record/5347503/files/figure.png" pageId="128" pageNumber="129" startId="128.[765,803,632,653]" targetBox="[746,1259,188,610]" targetPageId="128">
<paragraph id="8B88B0614BD4D8C0FD4A3126B40CFBA2" blockId="128.[739,1267,632,1133]" pageId="128" pageNumber="129">
Fig. 89. Strict consensus of four equally minimal length maximum parsimony trees for 414 bp haplotypes of the mtDNA cytochrome­b gene of
<taxonomicName id="4C37CBE24BD4D8C0FD543196B4D5FD12" baseAuthorityName="Thomas" baseAuthorityYear="1904" box="[739,923,712,733]" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="128" pageNumber="129" phylum="Chordata" rank="species" species="roberti">
<emphasis id="B9436C734BD4D8C0FD543196B4D5FD12" box="[739,923,712,733]" italics="true" pageId="128" pageNumber="129">Oecomys roberti</emphasis>
</taxonomicName>
from the Rio Jurua´. Catalog numbers for each haplotype (specimen) are listed from top to bottom following the order of terminal twigs: JLP 15241, MNFS 532, MNFS 537 and JLP 15402, MNFS 577, MNFS 578 and JLP 15404, MNFS 692 and 725, MNFS 948, JUR 532 and MNFS 955. The locality number (from the map, fig. 1) of each haplotype is indicated at the end of each branch tip. Bold numbers at nodes are bootstrap values, based on 1000 iterations; percentages are mean Kimura two­parameter distances. The tree is rooted by comparison to sequences of other species of
<taxonomicName id="4C37CBE24BD4D8C0FC643756B37DFBD2" box="[979,1075,1032,1053]" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="128" pageNumber="129" phylum="Chordata" rank="genus">
<emphasis id="B9436C734BD4D8C0FC643756B37DFBD2" box="[979,1075,1032,1053]" italics="true" pageId="128" pageNumber="129">Oecomys</emphasis>
</taxonomicName>
. Branch lengths drawn proportional to the number of character changes. Tree length = 41 steps; CI = 0.976; RI = 0.974.
</paragraph>
</caption>
<paragraph id="8B88B0614BD4D8C0FF77318FB69DFB72" blockId="128.[163,692,193,1741]" pageId="128" pageNumber="129">
GEOGRAPHIC VARIATION: Strong structure in the mtDNA cytochrome­b gene sequences also occurs within
<taxonomicName id="4C37CBE24BD4D8C0FECA3052B6BFFCEC" baseAuthorityName="Thomas" baseAuthorityYear="1904" box="[381,497,780,803]" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="128" pageNumber="129" phylum="Chordata" rank="species" species="roberti">
<emphasis id="B9436C734BD4D8C0FECA3052B6DCFCEC" box="[381,402,780,803]" italics="true" pageId="128" pageNumber="129">O</emphasis>
.
<emphasis id="B9436C734BD4D8C0FE173052B6BFFCEC" box="[416,497,780,803]" italics="true" pageId="128" pageNumber="129">roberti</emphasis>
</taxonomicName>
, although in this species linkage is between samples from the Lower Central and Mouth regions relative to those from the Headwaters and Upper Central ones (fig. 89). The average level of sequence divergence is not as great as it is in
<taxonomicName id="4C37CBE24BD4D8C0FF1430E2B651FC1C" baseAuthorityName="Tomes" baseAuthorityYear="1860" box="[163,287,956,979]" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="128" pageNumber="129" phylum="Chordata" rank="species" species="bicolor">
<emphasis id="B9436C734BD4D8C0FF1430E2B7F6FC1C" box="[163,184,956,979]" italics="true" pageId="128" pageNumber="129">O</emphasis>
.
<emphasis id="B9436C734BD4D8C0FF7C30E2B651FC1C" box="[203,287,956,979]" italics="true" pageId="128" pageNumber="129">bicolor</emphasis>
</taxonomicName>
(4.1% versus 5.4%). Despite the degree of molecular differentiation, however, not one dimensional variable of either the skin or skull exhibited a significant difference in comparisons between pooled samples of each molecular clade.
<taxonomicName id="4C37CBE24BD4D8C0FE713711B5C6FBA9" baseAuthorityName="Thomas" baseAuthorityYear="1904" box="[454,648,1103,1126]" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="128" pageNumber="129" phylum="Chordata" rank="species" species="roberti">
<emphasis id="B9436C734BD4D8C0FE713711B5C6FBA9" box="[454,648,1103,1126]" italics="true" pageId="128" pageNumber="129">Oecomys roberti</emphasis>
</taxonomicName>
appears to be a markedly uniform morphological entity throughout its distribution within the Rio Juruá river basin.
</paragraph>
</subSubSection>
<subSubSection id="C32DE3EA4BD4D8C0FF77379AB42BF9D2" pageId="128" pageNumber="129" type="distribution">
<paragraph id="8B88B0614BD4D8C0FF77379AB687F95C" blockId="128.[163,692,193,1741]" pageId="128" pageNumber="129">
DISTRIBUTION AND HABITAT: We took this species on both banks and in all geographic regions along the river, except for the Headwaters. However, it was found primarily in várzea forest on our standardized plots (44 of
<specimenCount id="9D317BE84BD4D8C0FF7E3608B621FAA2" box="[201,367,1366,1389]" pageId="128" pageNumber="129" type="generic">50 specimens</specimenCount>
, or 88%), on the edge of
<emphasis id="B9436C734BD4D8C0FF14362AB7ABFA44" box="[163,229,1396,1419]" italics="true" pageId="128" pageNumber="129">igapó</emphasis>
forest (2 of 50), or in highly disturbed second growth edges to seasonally flooded forest (4 of 50). The same number of individuals (n = 24) were taken on the ground and in the canopy, but this simple comparison is misleading since the terrestrial trap effort was nearly twice as great as that in the canopy (see table 2). We caught only two individuals in traps placed at approximately 1.5 m above the ground.
</paragraph>
<paragraph id="8B88B0614BD4D8C0FF7735C7B42BF9D2" blockId="128.[163,692,193,1741]" lastBlockId="128.[739,1268,1190,1741]" pageId="128" pageNumber="129">
REPRODUCTION: All young individuals of both sexes (toothwear age class 2) were non­ reproductive (nulliparous females and nonscrotal males), and two of five age class
<specimenCount id="9D317BE84BD4D8C0FB53379AB473FB37" pageId="128" pageNumber="129" type="female">3 females</specimenCount>
were also nulliparous. Only a single pregnant female was taken, with two embryos, but
<specimenCount id="9D317BE84BD4D8C0FC8A3642B483FAFC" box="[829,973,1308,1331]" pageId="128" pageNumber="129" type="female">two females</specimenCount>
exhibited recent placental scars that numbered either two or three Time to reproductive maturity appears somewhat prolonged, in relation to other genera such as
<taxonomicName id="4C37CBE24BD4D8C0FCFF36CFB4A7FA67" baseAuthorityName="Myers and Carleton" baseAuthorityYear="1981" box="[840,1001,1425,1448]" class="Mammalia" family="Cricetidae" genus="Oligoryzomys" kingdom="Animalia" order="Rodentia" pageId="128" pageNumber="129" phylum="Chordata" rank="genus">
<emphasis id="B9436C734BD4D8C0FCFF36CFB4A7FA67" box="[840,1001,1425,1448]" italics="true" pageId="128" pageNumber="129">Oligoryzomys</emphasis>
</taxonomicName>
and
<taxonomicName id="4C37CBE24BD4D8C0FB9C36CFB3D1FA67" box="[1067,1183,1425,1448]" class="Mammalia" family="Cricetidae" genus="Oryzomys" kingdom="Animalia" order="Rodentia" pageId="128" pageNumber="129" phylum="Chordata" rank="genus">
<emphasis id="B9436C734BD4D8C0FB9C36CFB3D1FA67" box="[1067,1183,1425,1448]" italics="true" pageId="128" pageNumber="129">Oryzomys</emphasis>
</taxonomicName>
, as do pregnancy rates. The pregnant females and those with obvious scars were all taken early in the dry season, during late August or mid­ September.
</paragraph>
</subSubSection>
<subSubSection id="C32DE3EA4BD4D8C1FCB7357AB419FA2C" lastPageId="129" lastPageNumber="130" pageId="128" pageNumber="129" type="description">
<paragraph id="8B88B0614BD4D8C0FCB7357AB3BDF902" blockId="128.[739,1268,1190,1741]" pageId="128" pageNumber="129">
KARYOTYPE: 2n = 80, FN = 114 (fig. 90) To our knowledge, the karyotype of this species has not been reported to date. We have data for
<specimenCount id="9D317BE84BD4D8C0FCEF3522B4B1F95C" box="[856,1023,1660,1683]" pageId="128" pageNumber="129" type="generic">20 specimens</specimenCount>
representing seven separate localities in the Upper and Lower Central and Mouth sample regions (locality
</paragraph>
<caption id="DF48E0E94BD5D8C1FF763755B67EFBBF" ID-DOI="http://doi.org/10.5281/zenodo.5347505" ID-Zenodo-Dep="5347505" httpUri="https://zenodo.org/record/5347505/files/figure.png" pageId="129" pageNumber="130" startId="129.[193,231,1035,1056]" targetBox="[396,1044,190,1010]" targetPageId="129">
<paragraph id="8B88B0614BD5D8C1FF763755B67EFBBF" blockId="129.[167,1270,1035,1136]" pageId="129" pageNumber="130">
Fig. 90. Karyotypes from two male
<taxonomicName id="4C37CBE24BD5D8C1FDF93755B5BCFBEF" box="[590,754,1035,1056]" class="Mammalia" family="Muridae" genus="Oeomys" kingdom="Animalia" order="Rodentia" pageId="129" pageNumber="130" phylum="Chordata" rank="species" species="roberti">
<emphasis id="B9436C734BD5D8C1FDF93755B5BCFBEF" box="[590,754,1035,1056]" italics="true" pageId="129" pageNumber="130">Oeomys roberti</emphasis>
</taxonomicName>
(2n = 80, FN = 114) representing the downriver mitochondrial DNA clade.
<emphasis id="B9436C734BD5D8C1FE7C377BB690FBF5" bold="true" box="[459,478,1061,1082]" pageId="129" pageNumber="130">A</emphasis>
: MNFS 725, Barro Vermelho, left bank Rio Jurua´, Estado do Amazonas Brazil (locality
<emphasis id="B9436C734BD5D8C1FEE0371EB63FFB9A" bold="true" box="[343,369,1088,1109]" pageId="129" pageNumber="130">12</emphasis>
);
<emphasis id="B9436C734BD5D8C1FE3A371EB6D0FB9A" bold="true" box="[397,414,1088,1109]" pageId="129" pageNumber="130">B</emphasis>
: JUR 532, Colocação Vira­volta, left bank Rio Jurua´, Estado do Amazonas (locality
<emphasis id="B9436C734BD5D8C1FEB03704B66FFBA0" bold="true" box="[263,289,1114,1135]" pageId="129" pageNumber="130">14</emphasis>
).
</paragraph>
</caption>
<paragraph id="8B88B0614BD5D8C1FF1037F8B517F95C" blockId="129.[167,696,1190,1741]" pageId="129" pageNumber="130">
<emphasis id="B9436C734BD5D8C1FF1037F8B7F8FB71" bold="true" box="[167,182,1190,1214]" pageId="129" pageNumber="130">5</emphasis>
, n = 4; locality
<emphasis id="B9436C734BD5D8C1FE3037F8B6D8FB71" bold="true" box="[391,406,1190,1214]" pageId="129" pageNumber="130">6</emphasis>
, n = 2; locality
<emphasis id="B9436C734BD5D8C1FDD137F8B53BFB71" bold="true" box="[614,629,1190,1214]" pageId="129" pageNumber="130">8</emphasis>
, n = 4; locality
<emphasis id="B9436C734BD5D8C1FE87379DB600FB14" bold="true" box="[304,334,1219,1243]" pageId="129" pageNumber="130">9a</emphasis>
, n = 1; locality
<emphasis id="B9436C734BD5D8C1FD9A379DB504FB14" bold="true" box="[557,586,1219,1243]" pageId="129" pageNumber="130">11</emphasis>
, n = 4; locality
<emphasis id="B9436C734BD5D8C1FEBE37BFB668FB36" bold="true" box="[265,294,1249,1273]" pageId="129" pageNumber="130">12</emphasis>
, n = 3; and locality
<emphasis id="B9436C734BD5D8C1FD9A37BFB504FB36" bold="true" box="[557,586,1249,1273]" pageId="129" pageNumber="130">14</emphasis>
, n = 2). The autosomal complement consists of 15 pairs of medium to small metacentric and submetacentric elements, three pairs of subtelocentric ones, and 21 pairs of acrocentric chromosomes. The X­chromosome is a very large submetacentric, the largest in the entire complement; the Ychromosome is a very small uniarmed element. This karyotype is the same in diploid number (2n = 80) and similar in fundamental number (FN = 114) to that described above for
<taxonomicName id="4C37CBE24BD5D8C1FE5E357AB52CF9F4" baseAuthorityName="Tomes" baseAuthorityYear="1860" box="[489,610,1572,1595]" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="129" pageNumber="130" phylum="Chordata" rank="species" species="bicolor">
<emphasis id="B9436C734BD5D8C1FE5E357AB6B0F9F4" box="[489,510,1572,1595]" italics="true" pageId="129" pageNumber="130">O</emphasis>
.
<emphasis id="B9436C734BD5D8C1FDB9357AB52CF9F4" box="[526,610,1572,1595]" italics="true" pageId="129" pageNumber="130">bicolor</emphasis>
</taxonomicName>
(FN = 140) and to that of
<taxonomicName id="4C37CBE24BD5D8C1FE3A351FB555F997" authorityName="Thomas" authorityYear="1911" box="[397,539,1601,1624]" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="129" pageNumber="130" phylum="Chordata" rank="species" species="superans">
<emphasis id="B9436C734BD5D8C1FE3A351FB6ECF997" box="[397,418,1601,1624]" italics="true" pageId="129" pageNumber="130">O</emphasis>
.
<emphasis id="B9436C734BD5D8C1FE05351FB555F997" box="[434,539,1601,1624]" italics="true" pageId="129" pageNumber="130">superans</emphasis>
</taxonomicName>
from eastern
<collectingCountry id="F320F0F14BD5D8C1FF103500B792F9BA" box="[167,220,1630,1653]" name="Peru" pageId="129" pageNumber="130">Perú</collectingCountry>
(FN = 108; Gardner and Patton, 1976; originally identified as
<taxonomicName id="4C37CBE24BD5D8C1FE0C3522B506F95C" baseAuthorityName="Wagner" baseAuthorityYear="1845" box="[443,584,1660,1683]" class="Mammalia" family="Cricetidae" genus="Oecomys" kingdom="Animalia" order="Rodentia" pageId="129" pageNumber="130" phylum="Chordata" rank="species" species="concolor">
<emphasis id="B9436C734BD5D8C1FE0C3522B69EF95C" box="[443,464,1660,1683]" italics="true" pageId="129" pageNumber="130">O</emphasis>
.
<emphasis id="B9436C734BD5D8C1FE563522B506F95C" box="[481,584,1660,1683]" italics="true" pageId="129" pageNumber="130">concolor</emphasis>
</taxonomicName>
).
</paragraph>
<paragraph id="8B88B0614BD5D8C1FF7335C7B5F8F902" blockId="129.[167,696,1190,1741]" pageId="129" pageNumber="130">
SPECIMENS EXAMINED (n = 50): (
<emphasis id="B9436C734BD5D8C1FDE035C7B528F97E" bold="true" box="[599,614,1689,1713]" pageId="129" pageNumber="130">5</emphasis>
)
<quantity id="4CCF1D844BD5D8C1FDCB35C7B5FCF97F" box="[636,690,1689,1712]" metricMagnitude="1" metricUnit="m" metricValue="1.1" pageId="129" pageNumber="130" unit="m" value="11.0">11m</quantity>
, 3f — JLP 15743, MNFS 577–580, 589–591,
</paragraph>
<paragraph id="8B88B0614BD5D8C1FD5037F8B419FA2C" blockId="129.[743,1271,1190,1507]" pageId="129" pageNumber="130">
622, 638, 669–670, 676–677; (
<emphasis id="B9436C734BD5D8C1FBE937F8B323FB71" bold="true" box="[1118,1133,1190,1214]" pageId="129" pageNumber="130">6</emphasis>
)
<quantity id="4CCF1D844BD5D8C1FB3737F8B3E6FB72" box="[1152,1192,1190,1213]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="129" pageNumber="130" unit="m" value="1.0">1m</quantity>
, 1f — MNFS 532, 537; (
<emphasis id="B9436C734BD5D8C1FC76379DB49EFB14" bold="true" box="[961,976,1219,1243]" pageId="129" pageNumber="130">7</emphasis>
)
<materialsCitation id="3B5FBA3C4BD5D8C1FC55379AB487FB37" accessionNumber="JLP 15241" elevation="1" pageId="129" pageNumber="130" specimenCount="1">
<quantity id="4CCF1D844BD5D8C1FC55379AB344FB14" box="[994,1034,1220,1243]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="129" pageNumber="130" unit="m" value="1.0">
<elevation id="001A57524BD5D8C1FC55379AB344FB14" box="[994,1034,1220,1243]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="129" pageNumber="130" unit="m" value="1.0">1m</elevation>
</quantity>
, 1 unknown — JLP 15241, 15413; (
<emphasis id="B9436C734BD5D8C1FC0637BFB48EFB36" bold="true" box="[945,960,1249,1273]" pageId="129" pageNumber="130">8</emphasis>
)
</materialsCitation>
<materialsCitation id="3B5FBA3C4BD5D8C1FC6F37BFB3EBFAFC" accessionNumber="JLP 15402" elevation="8" pageId="129" pageNumber="130" specimenCount="1">
<quantity id="4CCF1D844BD5D8C1FC6F37BFB34EFB37" box="[984,1024,1249,1272]" metricMagnitude="0" metricUnit="m" metricValue="8.0" pageId="129" pageNumber="130" unit="m" value="8.0">
<elevation id="001A57524BD5D8C1FC6F37BFB34EFB37" box="[984,1024,1249,1272]" metricMagnitude="0" metricUnit="m" metricValue="8.0" pageId="129" pageNumber="130" unit="m" value="8.0">8m</elevation>
</quantity>
, 7f — JLP 15402 15404, 15432, 15448, 15466–15469, JUR 9 MNFS 430, 433, 508, 514 516; (h)
</materialsCitation>
1f — MNFS 323; (j)
<materialsCitation id="3B5FBA3C4BD5D8C1FC1E3667B3F1FA9F" accessionNumber="JLP 15200" box="[937,1215,1337,1361]" pageId="129" pageNumber="130" specimenCount="1">
1f — JLP 15200; (
<emphasis id="B9436C734BD5D8C1FB203667B3FBFA9E" bold="true" box="[1175,1205,1337,1361]" pageId="129" pageNumber="130">9a</emphasis>
)
</materialsCitation>
<materialsCitation id="3B5FBA3C4BD5D8C1FB7D3667B3EAFAA2" accessionNumber="JLP 16033" elevation="1" pageId="129" pageNumber="130" specimenCount="1">
<quantity id="4CCF1D844BD5D8C1FB7D3667B3BCFA9F" box="[1226,1266,1337,1360]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="129" pageNumber="130" unit="m" value="1.0">
<elevation id="001A57524BD5D8C1FB7D3667B3BCFA9F" box="[1226,1266,1337,1360]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="129" pageNumber="130" unit="m" value="1.0">1m</elevation>
</quantity>
1f — JLP 16033, MNFS 948; (
<emphasis id="B9436C734BD5D8C1FBCA3608B3D4FAA1" bold="true" box="[1149,1178,1366,1390]" pageId="129" pageNumber="130">10</emphasis>
)
</materialsCitation>
1f — MNFS 955; (
<emphasis id="B9436C734BD5D8C1FC32362DB4ECFA44" bold="true" box="[901,930,1395,1419]" pageId="129" pageNumber="130">11</emphasis>
)
<quantity id="4CCF1D844BD5D8C1FC03362AB492FA44" box="[948,988,1396,1419]" metricMagnitude="0" metricUnit="m" metricValue="4.0" pageId="129" pageNumber="130" unit="m" value="4.0">4m</quantity>
, 2f — MNFS 681, 692 695, 702, 708, 769; (
<emphasis id="B9436C734BD5D8C1FC5436CFB34EFA66" bold="true" box="[995,1024,1425,1449]" pageId="129" pageNumber="130">12</emphasis>
)
<materialsCitation id="3B5FBA3C4BD5D8C1FBA436CFB371FA0A" accessionNumber="JLP 15916" elevation="4" pageId="129" pageNumber="130" specimenCount="1">
<quantity id="4CCF1D844BD5D8C1FBA436CFB376FA67" box="[1043,1080,1425,1448]" metricMagnitude="0" metricUnit="m" metricValue="4.0" pageId="129" pageNumber="130" unit="m" value="4.0">
<elevation id="001A57524BD5D8C1FBA436CFB376FA67" box="[1043,1080,1425,1448]" metricMagnitude="0" metricUnit="m" metricValue="4.0" pageId="129" pageNumber="130" unit="m" value="4.0">4m</elevation>
</quantity>
— JLP 15916– 15917, MNFS 725, 823; (
<emphasis id="B9436C734BD5D8C1FBAF36F0B37BFA09" bold="true" box="[1048,1077,1454,1478]" pageId="129" pageNumber="130">14</emphasis>
)
</materialsCitation>
<quantity id="4CCF1D844BD5D8C1FBFF36F0B321FA0A" box="[1096,1135,1454,1477]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="129" pageNumber="130" unit="m" value="1.0">1m</quantity>
, 1f — JUR 532, 534.
</paragraph>
</subSubSection>
</treatment>
</document>
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