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<mods:title id="FA049E0B759FE5AD7560CB7A9721A428">A Revised Subgeneric Classification of Short-tailed Opossums (Didelphidae: Monodelphis)</mods:title>
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<paragraph id="8BF45E21272EFF9FFE08FC5F98E3FC09" blockId="28.[433,911,936,962]" box="[433,911,936,962]" pageId="28" pageNumber="29">
Subgenus
<taxonomicName id="4C4B25A2272EFF9FFD91FC5F98E3FC09" authority="Matschie, 1916" authorityName="Matschie" authorityYear="1916" box="[552,911,936,962]" class="Mammalia" family="Didelphidae" genus="Monodelphiops" kingdom="Animalia" order="Didelphimorphia" pageId="28" pageNumber="29" phylum="Chordata" rank="genus">
<emphasis id="B93F8233272EFF9FFD91FC5F99BBFC09" box="[552,727,936,962]" italics="true" pageId="28" pageNumber="29">Monodelphiops</emphasis>
<bibRefCitation id="EFDA23D0272EFF9FFD67FC5F98E3FC09" author="Matschie, P." box="[734,911,936,962]" pageId="28" pageNumber="29" pagination="259 - 272" refId="ref16337" refString="Matschie, P. 1916. Bemerkungen uber die Gattung Didelphis L. Sitzungsberichte der Gesellschaπ Naturforschender Freunde zu Berlin 1916: 259 - 272." type="journal article" year="1916">Matschie, 1916</bibRefCitation>
</taxonomicName>
</paragraph>
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<subSubSection id="C3510DAA272EFF9FFF11FC169930FB8E" pageId="28" pageNumber="29" type="materials_examined">
<paragraph id="8BF45E21272EFF9FFF11FC16986EFBD4" blockId="28.[120,1225,992,1767]" pageId="28" pageNumber="29">
<collectionCode id="ED5AC6E4272EFF9FFF11FC169A24FC31" box="[168,328,992,1019]" pageId="28" pageNumber="29">
<typeStatus id="54F0E083272EFF9FFF11FC169B8FFC30" box="[168,227,993,1019]" pageId="28" pageNumber="29">TYPE</typeStatus>
SPECIES
</collectionCode>
:
<taxonomicName id="4C4B25A2272EFF9FFEEAFC1799B1FC31" authority="(Hensel, 1872)" baseAuthorityName="Hensel" baseAuthorityYear="1872" box="[339,733,992,1018]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="28" pageNumber="29" phylum="Chordata" rank="species" species="sorex">
<emphasis id="B93F8233272EFF9FFEEAFC179945FC31" box="[339,553,992,1018]" italics="true" pageId="28" pageNumber="29">Monodelphis sorex</emphasis>
(
<bibRefCitation id="EFDA23D0272EFF9FFD81FC1799B8FC31" author="Hensel, R." box="[568,724,992,1018]" pageId="28" pageNumber="29" pagination="1 - 130" refId="ref15931" refString="Hensel, R. 1872. Beitrage zur Kenntniss der Saugethiere Sud-Brasiliens. Abhandlungen der Koniglichen Akademie der Wissenschaπen in Berlin 1 - 130." type="book chapter" year="1872">Hensel, 1872</bibRefCitation>
)
</taxonomicName>
, a subjective junior synonym of
<taxonomicName id="4C4B25A2272EFF9FFBE3FC179AB2FBEB" authority="(Wagner, 1847)" baseAuthorityName="Wagner" baseAuthorityYear="1847" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="28" pageNumber="29" phylum="Chordata" rank="species" species="dimidiata">
<emphasis id="B93F8233272EFF9FFBE3FC179A73FBD4" italics="true" pageId="28" pageNumber="29">Monodelphis dimidiata</emphasis>
(
<bibRefCitation id="EFDA23D0272EFF9FFE89FBF19ABAFBEB" author="Wagner, J. A." box="[304,470,1030,1056]" pageId="28" pageNumber="29" pagination="121 - 208" refId="ref18183" refString="Wagner, J. A. 1847. Beitrage zur Kenntniss der Saugthiere Amerika's. Abhandlungen der Mathematisch- Physikalischen Klasse der Koniglich Bayerischen Akademie der Wissenschaπen 5: 121 - 208." type="journal article" year="1847">Wagner, 1847</bibRefCitation>
)
</taxonomicName>
, by original designation.
</paragraph>
<paragraph id="8BF45E21272EFF9FFF11FBDC9930FB8E" blockId="28.[120,1225,992,1767]" box="[168,604,1067,1093]" pageId="28" pageNumber="29">
SYNONYMS:
<taxonomicName id="4C4B25A2272EFF9FFE8CFBDB993BFB8E" authority="Cabrera, 1919" authorityName="Cabrera" authorityYear="1919" box="[309,599,1067,1093]" class="Mammalia" family="Didelphidae" genus="Minuania" kingdom="Animalia" order="Didelphimorphia" pageId="28" pageNumber="29" phylum="Chordata" rank="genus">
<emphasis id="B93F8233272EFF9FFE8CFBDB9AC4FB8E" box="[309,424,1068,1093]" italics="true" pageId="28" pageNumber="29">Minuania</emphasis>
<bibRefCitation id="EFDA23D0272EFF9FFE09FBDC993BFB8E" author="Cabrera, A." box="[432,599,1067,1093]" pageId="28" pageNumber="29" refId="ref15333" refString="Cabrera, A. 1919. Genera mammalium: Monotremata, Marsupialia. Madrid: Museo Nacional de Ciencias Naturales." type="book" year="1919">Cabrera, 1919</bibRefCitation>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="C3510DAA272EFF9FFF11FBA79911FB7E" pageId="28" pageNumber="29" type="description">
<paragraph id="8BF45E21272EFF9FFF11FBA79911FB7E" blockId="28.[120,1225,992,1767]" pageId="28" pageNumber="29">
CONTENTS:
<taxonomicName id="4C4B25A2272EFF9FFE85FBA7990DFBA1" authority="Wagner, 1847" authorityName="Wagner" authorityYear="1847" box="[316,609,1104,1131]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="28" pageNumber="29" phylum="Chordata" rank="species" species="dimidiata">
<emphasis id="B93F8233272EFF9FFE85FBA79AC2FBA1" box="[316,430,1104,1130]" italics="true" pageId="28" pageNumber="29">dimidiata</emphasis>
<bibRefCitation id="EFDA23D0272EFF9FFE03FBA6990DFBA1" author="Wagner, J. A." box="[442,609,1104,1131]" pageId="28" pageNumber="29" pagination="121 - 208" refId="ref18183" refString="Wagner, J. A. 1847. Beitrage zur Kenntniss der Saugthiere Amerika's. Abhandlungen der Mathematisch- Physikalischen Klasse der Koniglich Bayerischen Akademie der Wissenschaπen 5: 121 - 208." type="journal article" year="1847">Wagner, 1847</bibRefCitation>
</taxonomicName>
(including
<emphasis id="B93F8233272EFF9FFD4CFBA79851FBA1" box="[757,829,1104,1130]" italics="true" pageId="28" pageNumber="29">fosteri</emphasis>
<bibRefCitation id="EFDA23D0272EFF9FFCF0FBA7989AFBA1" author="Thomas, O." box="[841,1014,1104,1130]" pageId="28" pageNumber="29" pagination="586" refId="ref17707" refString="Thomas, O. 1924. A new short-tailed opossum from Argentina. Annals &amp; Magazine of Natural History (series 13) 9: 586." type="journal article" year="1924">Thomas, 1924</bibRefCitation>
;
<emphasis id="B93F8233272EFF9FFBBEFBA79F3BFBA1" box="[1031,1111,1104,1130]" italics="true" pageId="28" pageNumber="29">henseli</emphasis>
<bibRefCitation id="EFDA23D0272EFF9FFBDAFBA79BACFB5B" author="Thomas, O." pageId="28" pageNumber="29" pagination="158 - 159" refId="ref17492" refString="Thomas, O. 1888 a. Diagnoses of four new species of Didelphys. Annals and Magazine of Natural History (series 6) 1: 158 - 159." type="journal article" year="1888">Thomas, 1888a</bibRefCitation>
;
<emphasis id="B93F8233272EFF9FFF72FB819A42FB44" box="[203,302,1142,1167]" italics="true" pageId="28" pageNumber="29">itatiayae</emphasis>
<bibRefCitation id="EFDA23D0272EFF9FFE8CFB819928FB5B" author="Miranda-Ribeiro, A." box="[309,580,1142,1168]" pageId="28" pageNumber="29" pagination="245 - 427" refId="ref16363" refString="Miranda-Ribeiro, A. 1936. Didelphia ou Mammalia-ovovivipara. Marsupiaes, didelphos, pedimanos ou metatherios. Revista do Museu Paulista 20: 245 - 427." type="journal article" year="1936">Miranda-Ribeiro, 1936</bibRefCitation>
;
<emphasis id="B93F8233272EFF9FFDF6FB8199E7FB5B" box="[591,651,1142,1168]" italics="true" pageId="28" pageNumber="29">lundi</emphasis>
<bibRefCitation id="EFDA23D0272EFF9FFD28FB819828FB5B" author="Matschie, P." box="[657,836,1142,1168]" pageId="28" pageNumber="29" pagination="259 - 272" refId="ref16337" refString="Matschie, P. 1916. Bemerkungen uber die Gattung Didelphis L. Sitzungsberichte der Gesellschaπ Naturforschender Freunde zu Berlin 1916: 259 - 272." type="journal article" year="1916">Matschie, 1916</bibRefCitation>
;
<emphasis id="B93F8233272EFF9FFCF6FB8198D5FB5B" box="[847,953,1142,1168]" italics="true" pageId="28" pageNumber="29">paulensis</emphasis>
Vieira, 1950; and
<taxonomicName id="4C4B25A2272EFF9FFB34FB819A7FFB7E" authority="Hensel, 1872" authorityName="Hensel" authorityYear="1872" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="28" pageNumber="29" phylum="Chordata" rank="species" species="sorex">
<emphasis id="B93F8233272EFF9FFB34FB819FA4FB44" box="[1165,1224,1142,1167]" italics="true" pageId="28" pageNumber="29">sorex</emphasis>
<bibRefCitation id="EFDA23D0272EFF9FFFC1FB6C9A7FFB7E" author="Hensel, R." box="[120,275,1179,1205]" pageId="28" pageNumber="29" pagination="1 - 130" refId="ref15931" refString="Hensel, R. 1872. Beitrage zur Kenntniss der Saugethiere Sud-Brasiliens. Abhandlungen der Koniglichen Akademie der Wissenschaπen in Berlin 1 - 130." type="book chapter" year="1872">Hensel, 1872</bibRefCitation>
</taxonomicName>
); and
<taxonomicName id="4C4B25A2272EFF9FFEE7FB6B9914FB7E" authority="Wagner, 1842" authorityName="Wagner" authorityYear="1842" box="[350,632,1179,1206]" class="Mammalia" family="Didelphidae" genus="Monodelphiops" kingdom="Animalia" order="Didelphimorphia" pageId="28" pageNumber="29" phylum="Chordata" rank="species" species="unistriata">
<emphasis id="B93F8233272EFF9FFEE7FB6B9AA3FB7E" box="[350,463,1180,1205]" italics="true" pageId="28" pageNumber="29">unistriata</emphasis>
<bibRefCitation id="EFDA23D0272EFF9FFE6CFB6B9914FB7E" author="Wagner, A." box="[469,632,1179,1206]" pageId="28" pageNumber="29" pagination="356 - 362" refId="ref18162" refString="Wagner, A. 1842. Diagnosen neuer Arten brasilischer Saugthiere. Archiv fur Naturgeschichte 8: 356 - 362." type="journal article" year="1842">Wagner, 1842</bibRefCitation>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="C3510DAA272EFF9EFF11FB36997FFE7C" lastPageId="29" lastPageNumber="30" pageId="28" pageNumber="29" type="diagnosis">
<paragraph id="8BF45E21272EFF9EFF11FB36995BFEA0" blockId="28.[120,1225,992,1767]" lastBlockId="29.[120,1226,225,1447]" lastPageId="29" lastPageNumber="30" pageId="28" pageNumber="29">
DIAGNOSIS: (Asterisks in this section indicate traits exhibited by
<taxonomicName id="4C4B25A2272EFF9FFC00FB379FA5FB11" authorityName="Wagner" authorityYear="1847" box="[953,1225,1216,1242]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="28" pageNumber="29" phylum="Chordata" rank="species" species="dimidiata">
<emphasis id="B93F8233272EFF9FFC00FB379FA5FB11" box="[953,1225,1216,1242]" italics="true" pageId="28" pageNumber="29">Monodelphis dimidiata</emphasis>
</taxonomicName>
that have yet to be confirmed for
<taxonomicName id="4C4B25A2272EFF9FFDA7FB1099D2FACB" authorityName="Wagner" authorityYear="1842" box="[542,702,1255,1280]" class="Mammalia" family="Didelphidae" genus="Monodelphiops" kingdom="Animalia" order="Didelphimorphia" pageId="28" pageNumber="29" phylum="Chordata" rank="species" species="unistriata">
<emphasis id="B93F8233272EFF9FFDA7FB1099D2FACB" box="[542,702,1255,1280]" italics="true" pageId="28" pageNumber="29">M. unistriata</emphasis>
</taxonomicName>
.) Dorsal body pelage grayish middorsally, with (
<taxonomicName id="4C4B25A2272EFF9FFF79FAFB9A31FAEE" authorityName="Wagner" authorityYear="1842" box="[192,349,1292,1317]" class="Mammalia" family="Didelphidae" genus="Monodelphiops" kingdom="Animalia" order="Didelphimorphia" pageId="28" pageNumber="29" phylum="Chordata" rank="species" species="unistriata">
<emphasis id="B93F8233272EFF9FFF79FAFB9A31FAEE" box="[192,349,1292,1317]" italics="true" pageId="28" pageNumber="29">M. unistriata</emphasis>
</taxonomicName>
) or without (
<taxonomicName id="4C4B25A2272EFF9FFDBBFAFB99F1FAEE" authorityName="Wagner" authorityYear="1847" box="[514,669,1291,1317]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="28" pageNumber="29" phylum="Chordata" rank="species" species="dimidiata">
<emphasis id="B93F8233272EFF9FFDBBFAFB99F1FAEE" box="[514,669,1291,1317]" italics="true" pageId="28" pageNumber="29">M. dimidiata</emphasis>
</taxonomicName>
) a single dark longitudinal stripe, contrasting with clear yellowish, orange, or reddish flanks; ventral pelage uniformly colored (yellowish, orangish, or reddish), without self-whitish markings. Mammae 656 = 17 to 11511 = 27 (
<bibRefCitation id="EFDA23D0272EFF9FFF38FA8C9A11FA5D" author="Thomas, O." box="[129,381,1403,1430]" pageId="28" pageNumber="29" refId="ref17523" refString="Thomas, O. 1888 b. Catalogue of the Marsupialia and Monotremata in the collection of the British Museum (Natural History). London: Trustees of the British Museum (Natural History)." type="book" year="1888">Thomas, 1888b: 361</bibRefCitation>
), including abdominal-inguinal and pectoral teats.* Thenar and first interdigital pads of hind foot separate*; hypothenar pad of hind foot absent.* Body pelage extends onto the tail to about the same extent dorsally and ventrally; tail scales arranged in spiral series. Infraorbital foramen dorsal to P3 or M1; frontal process of jugal present but rounded, not distinctly angular*; parietal usually (&gt; 90% of examined specimens) in contact with mastoid*; incisive foramina short; maxillopalatine fenestrae short; sphenorbital fissure usually large, exposing basisphenoid laterally*; infratemporal crest of alisphenoid distinct*; secondary foramen ovale usually absent (rarely present bilaterally)*; tympanic wing of alisphenoid usually small*; tip of anterior process of the malleus exposed or not on external surface of bulla*; rostral tympanic process of petrosal triangular (not broadly rounded), but sometimes concealing fenestra cochleae ventrally*; stapes columelliform, imperforate or microperforate*; subsquamosal foramen large*. Anterior cingulids of m2 and m3 broad; entoconids of m1m3 distinct; dp3 small and incompletely molariform, with bicuspid trigonid and indistinct anterior cingulid*.
</paragraph>
<paragraph id="8BF45E21272FFF9EFF11FE80997FFE7C" blockId="29.[120,1226,225,1447]" pageId="29" pageNumber="30">
COMPARISONS: Comparisons of
<taxonomicName id="4C4B25A2272FFF9EFD9AFE8099BDFE5A" authorityName="Matschie" authorityYear="1916" box="[547,721,375,401]" class="Mammalia" family="Didelphidae" genus="Monodelphiops" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="genus">
<emphasis id="B93F8233272FFF9EFD9AFE8099BDFE5A" box="[547,721,375,401]" italics="true" pageId="29" pageNumber="30">Monodelphiops</emphasis>
</taxonomicName>
with other subgenera of
<taxonomicName id="4C4B25A2272FFF9EFC40FE809FE0FE5A" authorityName="Burnett" authorityYear="1830" box="[1017,1164,375,401]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="genus">
<emphasis id="B93F8233272FFF9EFC40FE809FE0FE5A" box="[1017,1164,375,401]" italics="true" pageId="29" pageNumber="30">Monodelphis</emphasis>
</taxonomicName>
have already been provided (see above).
</paragraph>
</subSubSection>
<subSubSection id="C3510DAA272FFF9EFF11FE369A0BFA6C" pageId="29" pageNumber="30" type="discussion">
<paragraph id="8BF45E21272FFF9EFF11FE369930FC9A" blockId="29.[120,1226,225,1447]" pageId="29" pageNumber="30">
REMARKS: Molecular sequence data are currently unavailable from
<taxonomicName id="4C4B25A2272FFF9EFC0EFE369FADFE10" baseAuthorityName="Wagner" baseAuthorityYear="1842" box="[951,1217,449,475]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="species" species="unistriata">
<emphasis id="B93F8233272FFF9EFC0EFE369FADFE10" box="[951,1217,449,475]" italics="true" pageId="29" pageNumber="30">Monodelphis unistriata</emphasis>
</taxonomicName>
, so inferences about its relationships are necessarily based on morphology. Although
<bibRefCitation id="EFDA23D0272FFF9EFBECFE109BA9FDED" author="Pine, R. H. &amp; D. A. Flores &amp; K. Bauer" pageId="29" pageNumber="30" pagination="425 - 441" refId="ref17031" refString="Pine, R. H., D. A. Flores, and K. Bauer. 2013. The second known specimen of Monodelphis unistriata (Wagner) (Mammalia: Didelphimorphia), with redescription of the species and phylogenetic analysis. Zootaxa 3: 425 - 441." type="journal article" year="2013">Pine et al. (2013)</bibRefCitation>
recovered
<taxonomicName id="4C4B25A2272FFF9EFEF1FDFA9A8DFDED" baseAuthorityName="Wagner" baseAuthorityYear="1842" box="[328,481,525,550]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="species" species="unistriata">
<emphasis id="B93F8233272FFF9EFEF1FDFA9A8DFDED" box="[328,481,525,550]" italics="true" pageId="29" pageNumber="30">M. unistriata</emphasis>
</taxonomicName>
as the sister taxon of
<taxonomicName id="4C4B25A2272FFF9EFD5BFDFA9808FDED" authorityName="Thomas" authorityYear="1888" box="[738,868,524,550]" class="Mammalia" family="Didelphidae" genus="Microdelphys" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="species" species="iheringi">
<emphasis id="B93F8233272FFF9EFD5BFDFA9808FDED" box="[738,868,524,550]" italics="true" pageId="29" pageNumber="30">M. iheringi</emphasis>
</taxonomicName>
based on a combined analysis of morphological characters and cytochrome-
<emphasis id="B93F8233272FFF9EFD2EFDC699C9FD80" box="[663,677,561,587]" italics="true" pageId="29" pageNumber="30">b</emphasis>
sequences (the latter coded as missing for
<taxonomicName id="4C4B25A2272FFF9EFB10FDC59B85FDBB" baseAuthorityName="Wagner" baseAuthorityYear="1842" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="species" species="unistriata">
<emphasis id="B93F8233272FFF9EFB10FDC59B85FDBB" italics="true" pageId="29" pageNumber="30">M. unistriata</emphasis>
</taxonomicName>
), the authors themselves stated that the characters sampled for their study were not “sufficiently informative as to allow refined elucidation of the relationships in this genus” (
<bibRefCitation id="EFDA23D0272FFF9EFB2AFD8B9A58FD70" author="Pine, R. H. &amp; D. A. Flores &amp; K. Bauer" pageId="29" pageNumber="30" pagination="425 - 441" refId="ref17031" refString="Pine, R. H., D. A. Flores, and K. Bauer. 2013. The second known specimen of Monodelphis unistriata (Wagner) (Mammalia: Didelphimorphia), with redescription of the species and phylogenetic analysis. Zootaxa 3: 425 - 441." type="journal article" year="2013">Pine et al., 2013: 433</bibRefCitation>
), and that additional characters as well as inclusion of other species would be necessary to “ever more firmly ascertain the relationships of this enigmatic taxon” (
<bibRefCitation id="EFDA23D0272FFF9EFBF5FD309B83FCCC" author="Pine, R. H. &amp; D. A. Flores &amp; K. Bauer" pageId="29" pageNumber="30" pagination="425 - 441" refId="ref17031" refString="Pine, R. H., D. A. Flores, and K. Bauer. 2013. The second known specimen of Monodelphis unistriata (Wagner) (Mammalia: Didelphimorphia), with redescription of the species and phylogenetic analysis. Zootaxa 3: 425 - 441." type="journal article" year="2013">Pine et al., 2013: 435</bibRefCitation>
). They also noted multiple morphological similarities between
<taxonomicName id="4C4B25A2272FFF9EFC6DFD1A9F02FCCD" baseAuthorityName="Wagner" baseAuthorityYear="1842" box="[980,1134,749,774]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="species" species="unistriata">
<emphasis id="B93F8233272FFF9EFC6DFD1A9F02FCCD" box="[980,1134,749,774]" italics="true" pageId="29" pageNumber="30">M. unistriata</emphasis>
</taxonomicName>
and
<taxonomicName id="4C4B25A2272FFF9EFB11FD1A9B84FCE0" authorityName="Wagner" authorityYear="1847" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="species" species="dimidiata">
<emphasis id="B93F8233272FFF9EFB11FD1A9B84FCE0" italics="true" pageId="29" pageNumber="30">M. dimidiata</emphasis>
</taxonomicName>
, suggesting that
<taxonomicName id="4C4B25A2272FFF9EFE08FCE59927FCE0" baseAuthorityName="Wagner" baseAuthorityYear="1842" box="[433,587,786,811]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="species" species="unistriata">
<emphasis id="B93F8233272FFF9EFE08FCE59927FCE0" box="[433,587,786,811]" italics="true" pageId="29" pageNumber="30">M. unistriata</emphasis>
</taxonomicName>
could be more closely related to
<taxonomicName id="4C4B25A2272FFF9EFC6DFCE59F00FCE0" authorityName="Wagner" authorityYear="1847" box="[980,1132,785,811]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="species" species="dimidiata">
<emphasis id="B93F8233272FFF9EFC6DFCE59F00FCE0" box="[980,1132,785,811]" italics="true" pageId="29" pageNumber="30">M. dimidiata</emphasis>
</taxonomicName>
than to any other species (
<bibRefCitation id="EFDA23D0272FFF9EFEEDFCC09923FC9A" author="Pine, R. H. &amp; D. A. Flores &amp; K. Bauer" box="[340,591,823,849]" pageId="29" pageNumber="30" pagination="425 - 441" refId="ref17031" refString="Pine, R. H., D. A. Flores, and K. Bauer. 2013. The second known specimen of Monodelphis unistriata (Wagner) (Mammalia: Didelphimorphia), with redescription of the species and phylogenetic analysis. Zootaxa 3: 425 - 441." type="journal article" year="2013">Pine et al., 2013: 432</bibRefCitation>
).
</paragraph>
<paragraph id="8BF45E21272FFF9EFF10FCAB9AC6FADA" blockId="29.[120,1226,225,1447]" pageId="29" pageNumber="30">
Among several possible explanations for such anomalous results,
<taxonomicName id="4C4B25A2272FFF9EFC00FCAA9F38FCBD" baseAuthorityName="Wagner" baseAuthorityYear="1842" box="[953,1108,861,886]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="species" species="unistriata">
<emphasis id="B93F8233272FFF9EFC00FCAA9F38FCBD" box="[953,1108,861,886]" italics="true" pageId="29" pageNumber="30">M. unistriata</emphasis>
</taxonomicName>
is known from just two specimens, one consisting only of a skin and the other of a skin and part of the skull (
<bibRefCitation id="EFDA23D0272FFF9EFF48FC509AD5FC0A" author="Pine, R. H. &amp; D. A. Flores &amp; K. Bauer" box="[241,441,935,961]" pageId="29" pageNumber="30" pagination="425 - 441" refId="ref17031" refString="Pine, R. H., D. A. Flores, and K. Bauer. 2013. The second known specimen of Monodelphis unistriata (Wagner) (Mammalia: Didelphimorphia), with redescription of the species and phylogenetic analysis. Zootaxa 3: 425 - 441." type="journal article" year="2013">Pine et al., 2013</bibRefCitation>
:
<figureCitation id="137042A4272FFF9EFE7CFC509968FC0A" box="[453,516,935,961]" captionStart="FIG" captionStartId="6.[120,162,1701,1722]" captionTargetBox="[161,1197,230,1664]" captionTargetId="figure-12@6.[120,1224,224,1674]" captionTargetPageId="6" captionText="FIG. 2. Ventral views of skins with alternative pelage markings (see text): A, Monodelphis handleyi (MUSM 23810); B, M. glirina (MVZ 197456); C, M. touan (USNM 549280). Scale bar = 50 mm." figureDoi="http://doi.org/10.5281/zenodo.4598438" httpUri="https://zenodo.org/record/4598438/files/figure.png" pageId="29" pageNumber="30">fig. 2</figureCitation>
), so information is missing for many morphological characters, including those of the posterior braincase, zygomatic arches, and ear region. We hypothesize that
<taxonomicName id="4C4B25A2272FFF9EFEF3FC059A84FBC0" baseAuthorityName="Wagner" baseAuthorityYear="1842" box="[330,488,1010,1035]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="species" species="unistriata">
<emphasis id="B93F8233272FFF9EFEF3FC059A84FBC0" box="[330,488,1010,1035]" italics="true" pageId="29" pageNumber="30">M. unistriata</emphasis>
</taxonomicName>
and
<taxonomicName id="4C4B25A2272FFF9EFD93FC0599ABFBC0" authorityName="Wagner" authorityYear="1847" box="[554,711,1009,1035]" class="Mammalia" family="Didelphidae" genus="Monodelphis" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="species" species="dimidiata">
<emphasis id="B93F8233272FFF9EFD93FC0599ABFBC0" box="[554,711,1009,1035]" italics="true" pageId="29" pageNumber="30">M. dimidiata</emphasis>
</taxonomicName>
are sister taxa based on shared attributes that seem likely to optimize as synapomorphies in future phylogenetic analyses. Such attributes include: a dorsal body pelage with a grizzled middorsum contrasting with clear yellowish, orange, or reddish flanks; large tail scales arranged in spiral series; very short incisive foramina (a striking similarity previously noted by
<bibRefCitation id="EFDA23D0272FFF9EFD59FB7098CFFB6A" author="Pine, R. H. &amp; D. A. Flores &amp; K. Bauer" box="[736,931,1159,1185]" pageId="29" pageNumber="30" pagination="425 - 441" refId="ref17031" refString="Pine, R. H., D. A. Flores, and K. Bauer. 2013. The second known specimen of Monodelphis unistriata (Wagner) (Mammalia: Didelphimorphia), with redescription of the species and phylogenetic analysis. Zootaxa 3: 425 - 441." type="journal article" year="2013">Pine et al., 2013</bibRefCitation>
); and short maxillopalatine fenestrae. Of course, this hypothesis needs to be tested using taxon-dense phylogenetic analyses of morphological and molecular data when fresh material of this apparently elusive species become available.
</paragraph>
<paragraph id="8BF45E21272FFF9EFF11FAEB9A0BFA6C" blockId="29.[120,1226,225,1447]" pageId="29" pageNumber="30">
NOTES ON DISTRIBUTION AND SYMPATRY:
<taxonomicName id="4C4B25A2272FFF9EFD1AFAEB983BFAFD" authorityName="Matschie" authorityYear="1916" box="[675,855,1308,1334]" class="Mammalia" family="Didelphidae" genus="Monodelphiops" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="genus">
<emphasis id="B93F8233272FFF9EFD1AFAEB983BFAFD" box="[675,855,1308,1334]" italics="true" pageId="29" pageNumber="30">Monodelphiops</emphasis>
</taxonomicName>
occurs in southeastern
<collectingCountry id="F35C1EB1272FFF9EFBC3FAEB9FAFFAFD" box="[1146,1219,1308,1334]" name="Brazil" pageId="29" pageNumber="30">Brazil</collectingCountry>
, eastern
<collectingCountry id="F35C1EB1272FFF9EFF64FAB59A22FA97" box="[221,334,1346,1372]" name="Paraguay" pageId="29" pageNumber="30">Paraguay</collectingCountry>
,
<collectingCountry id="F35C1EB1272FFF9EFEE7FAB59AA6FA97" box="[350,458,1346,1372]" name="Uruguay" pageId="29" pageNumber="30">Uruguay</collectingCountry>
, and northeastern
<collectingCountry id="F35C1EB1272FFF9EFD04FAB69855FA90" box="[701,825,1345,1371]" name="Argentina" pageId="29" pageNumber="30">Argentina</collectingCountry>
(
<bibRefCitation id="EFDA23D0272FFF9EFCF4FAB69F5DFA90" author="Vilela, J. F. &amp; C. A. M. Russo &amp; J. A. Oliveira" box="[845,1073,1345,1372]" pageId="29" pageNumber="30" pagination="26 - 42" refId="ref17857" refString="Vilela, J. F., C. A. M. Russo, and J. A. Oliveira. 2010. An assessment of morphometric and molecular variation in Monodelphis dimidiata (Wagner, 1847) (Didelphimorphia: Didelphidae). Zootaxa 2646: 26 - 42." type="journal article" year="2010">Vilela et al., 2010</bibRefCitation>
;
<bibRefCitation id="EFDA23D0272FFF9EFBF8FAB69BD9FA4A" author="Pine, R. H. &amp; D. A. Flores &amp; K. Bauer" pageId="29" pageNumber="30" pagination="425 - 441" refId="ref17031" refString="Pine, R. H., D. A. Flores, and K. Bauer. 2013. The second known specimen of Monodelphis unistriata (Wagner) (Mammalia: Didelphimorphia), with redescription of the species and phylogenetic analysis. Zootaxa 3: 425 - 441." type="journal article" year="2013">Pine et al., 2013</bibRefCitation>
) (
<tableCitation id="C6C96B9A272FFF9EFF74FA909A4EFA4A" box="[205,290,1383,1409]" captionStart="TABLE 3" captionStartId="25.[120,194,224,248]" captionTargetPageId="25" captionText="TABLE 3. Geographic Distribution of the Subgenera of Monodelphis.a" httpUri="http://table.plazi.org/id/DF340EA9272BFF9AFFC1FF179851FF25" pageId="29" pageNumber="30" tableUuid="DF340EA9272BFF9AFFC1FF179851FF25">table 3</tableCitation>
), where it is sometimes sympatric with
<taxonomicName id="4C4B25A2272FFF9EFCBEFA9098DAFA4A" authorityName="Pavan &amp; Voss" authorityYear="2016" box="[775,950,1383,1409]" kingdom="Animalia" pageId="29" pageNumber="36" rank="subGenus" subGenus="Mygalodelphys">
<emphasis id="B93F8233272FFF9EFCBEFA9098DAFA4A" box="[775,950,1383,1409]" italics="true" pageId="29" pageNumber="30">Mygalodelphys</emphasis>
</taxonomicName>
and
<taxonomicName id="4C4B25A2272FFF9EFC4AFA909FFDFA4A" authorityName="Burmeister" authorityYear="1856" box="[1011,1169,1383,1409]" class="Mammalia" family="Didelphidae" genus="Microdelphys" kingdom="Animalia" order="Didelphimorphia" pageId="29" pageNumber="30" phylum="Chordata" rank="genus">
<emphasis id="B93F8233272FFF9EFC4AFA909FFDFA4A" box="[1011,1169,1383,1409]" italics="true" pageId="29" pageNumber="30">Microdelphys</emphasis>
</taxonomicName>
(see previous accounts).
</paragraph>
</subSubSection>
</treatment>
</document>