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<document ID-CLB-Dataset="297059" ID-DOI="10.5281/zenodo.7316535" ID-GBIF-Dataset="bb605a32-1722-403b-9e46-bac664e1a8e5" ID-ISBN="0-8018-8221-4" checkinTime="1670905143547" checkinUser="guido" docAuthor="Wilson, Don E. &amp; Reeder, DeeAnn" docDate="2005" docId="D10F5FD3C293222E1704E2772CDC1D5B" docLanguage="en" docName="MammalSpeciesofTheWorld.2005.Cricetidae.955-1189.xml" docOrigin="Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore: The Johns Hopkins University Press" docTitle="Myodes regulus Thomas 1906" docType="treatment" docVersion="4" id="05F3D1847A4743C70A50558FE6B48509" lastPageNumber="1025" masterDocId="05F3D1847A4743C70A50558FE6B48509" masterDocTitle="Order Rodentia - Family Cricetidae" masterLastPageNumber="1189" masterPageNumber="955" pageNumber="1025" updateTime="1716773916032" updateUser="ExternalLinkService">
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<mods:title id="726A24B89884F93C6ACC8FC0928ED1CD">Order Rodentia - Family Cricetidae</mods:title>
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<mods:namePart id="D0CFA28A4DC0FF27C98AFFE12026B34F">Wilson, Don E.</mods:namePart>
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<mods:namePart id="458432C0FB45117621CE79B3636F53B8">Reeder, DeeAnn</mods:namePart>
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<mods:title id="7CAA2556BB09D65EBE6384DE094A58FA">Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2</mods:title>
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<treatment id="D10F5FD3C293222E1704E2772CDC1D5B" ID-GBIF-Taxon="231522952" LSID="urn:lsid:plazi:treatment:D10F5FD3C293222E1704E2772CDC1D5B" httpUri="http://treatment.plazi.org/id/D10F5FD3C293222E1704E2772CDC1D5B" lastPageNumber="1025" pageNumber="1025" sourceUrl="http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?id=13000314">
<subSubSection id="BB21B99399F9D5DF5DB2CD2D05F0BC7F" pageNumber="1025" type="nomenclature">
<paragraph id="80026D5BB5E4B6439D69854A255C6223" pageNumber="1025">
<taxonomicName id="7A23339588A2B4D724ED74B18B164C51" ID-CoL="454QB" authority="Thomas 1906" authorityName="Thomas" authorityYear="1906" class="Mammalia" family="Cricetidae" genus="Myodes" kingdom="Animalia" order="Rodentia" pageNumber="1025" phylum="Chordata" rank="species" species="regulus">
<emphasis id="58ADDBCF5152739192A4C0E4D0631428" italics="true" pageNumber="1025">Myodes regulus</emphasis>
Thomas 1906
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="08E0E345955A12FDC169182C07EE7294" pageNumber="1025" type="reference_group">
<paragraph id="02ED0B7C79795CFEFC4F77A88D10F442" pageNumber="1025">
<treatmentCitation id="0AC223ACA0BB3677A9B91F602A30BF1E" author="Thomas" authority="Thomas 1906" authorityName="Thomas" authorityYear="1906" class="Mammalia" family="Cricetidae" genus="Myodes" journal="Proc. Zool. Soc. Lond." kingdom="Animalia" order="Rodentia" page="863" pageNumber="1025" phylum="Chordata" rank="species" species="regulus" title="Myodes regulus" volume="1906" year="1906">
<taxonomicName id="A4B8C8A1A7CC0A0A97FAEAC87510119F" ID-CoL="454QB" authority="Thomas 1906" authorityName="Thomas" authorityYear="1906" class="Mammalia" family="Cricetidae" genus="Myodes" kingdom="Animalia" order="Rodentia" pageNumber="1025" phylum="Chordata" rank="species" species="regulus">
<emphasis id="92CA2E9B45D3E277A2153FE90F398F53" italics="true" pageNumber="1025">Myodes regulus</emphasis>
Thomas 1906
</taxonomicName>
,
<bibCitation id="1ECF03762727418BB9F6ECA5D9641377" author="Thomas" journal="Proc. Zool. Soc. Lond." pageNumber="1025" pagination="863" title="Myodes regulus" volume="1906" year="1906">Proc. Zool. Soc. Lond., 1906: 863</bibCitation>
</treatmentCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="6A2E5B9CAED73872A8EBB5C03E9B3E5F" pageNumber="1025" type="materials_examined">
<paragraph id="7D6CFA5CF98C87C6F2BCB45D6E13D362" pageNumber="1025">
<emphasis id="AA89525CE0C1B798061B4C6F6F697E6B" inLineHeading="true" pageNumber="1025">Type Locality:</emphasis>
<materialsCitation id="C13575C00A5DFE96045DBE9607F4319C" ID-GBIF-Occurrence="4867286699" country="South Korea" pageNumber="1025" stateProvince="Seoul">
<collectingCountry id="BBB5D30F2C6E5137BEA4A0A326076802" name="South Korea">Korea</collectingCountry>
, Mingyong,
<quantity id="D5D48311730D02C40F2164A38E56619D" metricMagnitude="5" metricUnit="m" metricValue="1.7702784" unit="mi" value="110.0">110 mi</quantity>
(
<quantity id="C87C302B15F3A7A4A901CAE795D13590" metricMagnitude="5" metricUnit="m" metricValue="1.77" unit="km" value="177.0">177 km</quantity>
) SE
<collectingRegion id="B2F47C55A65E11BFB0F19CB3646446AC" country="South Korea" name="Seoul">Seoul</collectingRegion>
.
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="954C0D80BC92F9E35947B256827E011C" pageNumber="1025" type="vernacular_names">
<paragraph id="4E37001ACBCED2F030917978EB6473EC" pageNumber="1025">
<emphasis id="75FA8AFD12F71DC01B265C9AD15C81EA" inLineHeading="true" pageNumber="1025">Vernacular Names:</emphasis>
<vernacularName id="0708D5730843CF55C240783CA16AA050" language="eng" pageNumber="1025">Korean Red-backed Vole</vernacularName>
.
</paragraph>
</subSubSection>
<subSubSection id="C8286ED32B5129495ADE90CF42BC4F48" pageNumber="1025" type="distribution">
<paragraph id="1E06BD403B705CBAA83ECB95AD76947A" pageNumber="1025">
<emphasis id="1A3C1D4B5F23F418C05A6957D5B7AFA0" inLineHeading="true" pageNumber="1025">Distribution:</emphasis>
Korean Peninsula (
<bibRefCitation id="6BBA8D84EF3E2ABACAB5F4E443F4E6B6" author="Won, C. &amp; K. G. Smith" refId="ref393193" refString="Won, C., and K. G. Smith. 1999. History and current status of mammals of the Korean Peninsula. Mammal Review, 29 (1): 3 - 33." year="1999">Won and Smith, 1999</bibRefCitation>
, as
<taxonomicName id="6B937F339234A583B6EB4F5B20FF4583" baseAuthorityName="Kaneko" baseAuthorityYear="1994" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="F7E15632A858C881718677436A3F1F8C" italics="true" pageNumber="1025">Eothenomys</emphasis>
</taxonomicName>
).
</paragraph>
</subSubSection>
<subSubSection id="65FA119CAAE364A91CB1E970949CBF23" pageNumber="1025" type="conservation">
<paragraph id="F85B38FE2D2D3C8913FCB9DF1EC45B3D" pageNumber="1025">
<emphasis id="D7C67612552E0E51118475F82067A371" inLineHeading="true" pageNumber="1025">Conservation:</emphasis>
<collectionCode id="5D4FDE024EA5830386DAFEC7DB7E4FD4">IUCN</collectionCode>
Lower Risk (lc) as
<taxonomicName id="E04D31254F508A47C27157A90C1F2AFD" baseAuthorityName="Thomas" baseAuthorityYear="1907" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="regulus">
<emphasis id="525C97131619164F26B31BD69C7CC13F" italics="true" pageNumber="1025">Eothenomys regulus</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="3DB942990D627CCD986747E645D4320F" pageNumber="1025" type="discussion">
<paragraph id="34403A4B6FEB8A2178B97AA1F79BBA09" pageNumber="1025">
<emphasis id="977366CB229BBA5D734DAD764D2666B5" inLineHeading="true" pageNumber="1025">Discussion:</emphasis>
<paragraph id="E9690A899BA1BF6C2D5E85242A82A1E8" pageNumber="1025">
Usually included in
<taxonomicName id="588A0551C9A64DDD30DAB98D920D6E33" baseAuthorityName="Mezhzherin and Serbenyuk" baseAuthorityYear="1992" class="Mammalia" family="Cricetidae" genus="Myodes" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="rufocanus">
<emphasis id="7FADC467B416DD7DCEF72F0CF583466F" italics="true" pageNumber="1025">M. rufocanus</emphasis>
</taxonomicName>
(G. M. Allen, 1940;
<bibRefCitation id="E9861EB74AC05A669720EF5A8DB0A0F2" author="Ellerman, J. R. &amp; T. C. S. Morrison-Scott" refId="ref93180" refString="Ellerman, J. R., and T. C. S. Morrison-Scott. 1951. Checklist of Palaearctic and Indian mammals 1758 to 1946. Trustees of the British Museum (Natural History), London, 810 pp." year="1951">Ellerman and Morrison-Scott, 1951</bibRefCitation>
;
<bibRefCitation id="AB3A4297E56F380B98DD3F90E875B151" author="Gromov, I. M. &amp; I. Ya. Polyakov" refId="ref130339" refString="Gromov, I. M., and I. Ya. Polyakov. 1977. Fauna SSSR, Mlekopitayushchie, tom 3, vyp. 8 [Fauna of the USSR, vol. 3, pt. 8, Mammals]. Polevki [Voles (Microtinae)]. Nauka, Moscow-Leningrad, 504 pp. (in Russian)." year="1977">Gromov and Polyakov, 1977</bibRefCitation>
;
<bibRefCitation id="C7AEECA8C99AA58E5DAEC37D3F1C32B2" author="Hinton, M. A. C." refId="ref154024" refString="Hinton, M. A. C. 1926 a. Monograph of the voles and lemmings (Microtinae) living and extinct. Volume 1. British Museum (Natural History), London, 488 pp." year="1926">
Hinton, 1926
<emphasis id="CA1C7E5223E0D316C70E5E50B55B816F" italics="true" pageNumber="1025">a</emphasis>
</bibRefCitation>
; also see references in
<bibRefCitation id="503668B723258C02826CDDF3ECD1CC77" author="Kaneko, Y." refId="ref179677" refString="Kaneko, Y. 1990. Identification and some morphological characters of Clethrionomys rufocanus and Eothenomys regulus from USSR, Northeast China, and Korea in comparison with C. rufocanus from Finland. Journal of the Mammalogical Society of Japan, 14: 129 - 148." year="1990">Kaneko, 1990</bibRefCitation>
) but treated as a separate species by
<bibRefCitation id="C95E0100DEAD5B1B069DE1AF341B69A9" author="Corbet, G. B." refId="ref67548" refString="Corbet, G. B. 1978 c. The mammals of the Palaearctic region: A taxonomic review. British Museum (Natural History), London, 314 pp." year="1978">
Corbet (1978
<emphasis id="6899FF44FBF1AB28A06BECC24CFC0C8F" italics="true" pageNumber="1025">c</emphasis>
)
</bibRefCitation>
. In a study of red-backed voles from
<collectingCountry id="B4C7E728A2F8F151406957D37655207D" name="Russia">Russia</collectingCountry>
, NE
<collectingCountry id="4A6AD6CD82512E731C45D8EA2AB3E7EE" name="China">China</collectingCountry>
, and
<collectingCountry id="F44C4F798B05AB0D279A75ED18305718" name="South Korea">Korea</collectingCountry>
,
<bibRefCitation id="51F70AA5B42BDBFFCDE5E052C451C445" author="Kaneko, Y." refId="ref179677" refString="Kaneko, Y. 1990. Identification and some morphological characters of Clethrionomys rufocanus and Eothenomys regulus from USSR, Northeast China, and Korea in comparison with C. rufocanus from Finland. Journal of the Mammalogical Society of Japan, 14: 129 - 148." year="1990">Kaneko (1990)</bibRefCitation>
thoroughly documented morphological distinctions between
<taxonomicName id="CAA0C8405C865F99F6021D9CA52F125E" baseAuthorityName="Mezhzherin and Serbenyuk" baseAuthorityYear="1992" class="Mammalia" family="Cricetidae" genus="Myodes" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="rufocanus">
<emphasis id="129C9B5115486CF4C99E5AEA8AC5F632" italics="true" pageNumber="1025">M. rufocanus</emphasis>
</taxonomicName>
and
<taxonomicName id="73386D120D43071DA2F7F374B5BC81EC" baseAuthorityName="Thomas" baseAuthorityYear="1907" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="regulus">
<emphasis id="E3FF67AF15599AB68663C9B7D638BE7B" italics="true" pageNumber="1025">M. regulus</emphasis>
</taxonomicName>
, considering the latter to be a Korean endemic and suggesting (p. 129) that &quot;the true geographical demarcation line between the two species lies on the western and southern boundary of the Kaima Plateau,
<collectingCountry id="9A08B8F1EE261055803A7BBB01C820FA" name="North Korea">North Korea</collectingCountry>
.&quot; Kaneko also discovered that adult and old
<taxonomicName id="718C22D9FD5EDD0150DC764B5A9A6BED" baseAuthorityName="Thomas" baseAuthorityYear="1907" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="regulus">
<emphasis id="FA896BDA5AB2D54CDD2E0F95DABD08D9" italics="true" pageNumber="1025">regulus</emphasis>
</taxonomicName>
lack molar roots, a key character for separating
<taxonomicName id="1E9664593966D15DA373AACE1C94CD3C" authorityName="Pallas" authorityYear="1811" class="Mammalia" family="Cricetidae" genus="Myodes" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="701C8449DF14C85037D33A07ACBF8346" italics="true" pageNumber="1025">Myodes</emphasis>
</taxonomicName>
from
<taxonomicName id="B29290A727BEDB4C37DB278722FB4755" baseAuthorityName="Kaneko" baseAuthorityYear="1994" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="A5840E58DE4BB7709A7F24008C92ED89" italics="true" pageNumber="1025">Eothenomys</emphasis>
</taxonomicName>
, and so transferred the Korean endemic to
<taxonomicName id="CA0E3460C66C764BF535D26419DD39E2" baseAuthorityName="Kaneko" baseAuthorityYear="1994" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="824D004DDB75A2EAC863C87F98F15C21" italics="true" pageNumber="1025">Eothenomys</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="C61DC3B1709AFE6D69DAA0567912EB9F" pageNumber="1025">
Subsequent mitochondrial and nuclear ribosomal DNA analyses conclusively demonstrate that
<taxonomicName id="580BEB7D63AF112E7C7A546C3E5A5B83" baseAuthorityName="Thomas" baseAuthorityYear="1907" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="regulus">
<emphasis id="C87903512EAE62E44BF0A8FD44971AA2" italics="true" pageNumber="1025">M. regulus</emphasis>
</taxonomicName>
is distinct but phylogenetically close to
<taxonomicName id="39CE9F18FF573319EE3FA1F56A1CDDF6" baseAuthorityName="Mezhzherin and Serbenyuk" baseAuthorityYear="1992" class="Mammalia" family="Cricetidae" genus="Myodes" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="rufocanus">
<emphasis id="0BF9A1A5B66778CD1D73A9DDB5CFE9BA" italics="true" pageNumber="1025">M. rufocanus</emphasis>
</taxonomicName>
, not typical
<taxonomicName id="959DC21CBCF484C5E446ABB7B887BA14" baseAuthorityName="Kaneko" baseAuthorityYear="1994" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="DA3D377B1C8A9632A21AEC8C0120B1DA" italics="true" pageNumber="1025">Eothenomys</emphasis>
</taxonomicName>
(
<bibRefCitation id="30B77F6B6A947157FAE448CA1344444A" author="Suzuki, H. &amp; M. Iwasa &amp; M. Harada &amp; S. Wakana &amp; M. Sakaizumi &amp; S. - H. Han &amp; E. Kitahara &amp; Y. Kimura &amp; I. Kartavtseva &amp; K. Tsuchiya" refId="ref344927" refString="Suzuki, H., M. Iwasa, M. Harada, S. Wakana, M. Sakaizumi, S. - H. Han, E. Kitahara, Y. Kimura, I. Kartavtseva, and K. Tsuchiya. 1999 b. Molecular phylogeny of red-backed voles in Far East Asia based on variation in ribosomal and mitochrondrial DNA. Journal of Mammalogy, 80 (2): 512 - 521." year="1999">
Suzuki et al., 1999
<emphasis id="B645CE159E8630683053E3C482885B26" italics="true" pageNumber="1025">b</emphasis>
</bibRefCitation>
, whose study included
<taxonomicName id="365FB5050EED7DD13FE471702A4C4B2F" authorityName="Milne-Edwards" authorityYear="1871" class="Mammalia" family="Cricetidae" genus="Arvicola" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="melanogaster">
<emphasis id="D2E10325A68C4F1B72CB2C2CD07E3F45" italics="true" pageNumber="1025">melanogaster</emphasis>
</taxonomicName>
, the type species of
<taxonomicName id="6D48891C529D0AF0ED97EE2CA517F858" baseAuthorityName="Kaneko" baseAuthorityYear="1994" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="E36C68492082A356D2C6E92AA9BE8B89" italics="true" pageNumber="1025">Eothenomys</emphasis>
</taxonomicName>
;
<bibRefCitation id="79137EDB746A63EF0B18E7EC87234B66" author="Wakana, S. &amp; M. Sakaizumi &amp; K. Tsuchiya &amp; M. Asakawa &amp; S. H. Han &amp; K. Nakata &amp; H. Suzuki" refId="ref380347" refString="Wakana, S., M. Sakaizumi, K. Tsuchiya, M. Asakawa, S. H. Han, K. Nakata, and H. Suzuki. 1996. Phylogenetic implications of variations in rDNA and mtDNA in red-backed voles collected in Hokkaido, Japan, and in Korea. Mammal Study, 21: 15 - 25." year="1996">Wakana et al., 1996</bibRefCitation>
).
<bibRefCitation id="38116C3B5F5FC8531FC8AD532AD38751" author="Wakana, S. &amp; M. Sakaizumi &amp; K. Tsuchiya &amp; M. Asakawa &amp; S. H. Han &amp; K. Nakata &amp; H. Suzuki" refId="ref380347" refString="Wakana, S., M. Sakaizumi, K. Tsuchiya, M. Asakawa, S. H. Han, K. Nakata, and H. Suzuki. 1996. Phylogenetic implications of variations in rDNA and mtDNA in red-backed voles collected in Hokkaido, Japan, and in Korea. Mammal Study, 21: 15 - 25." year="1996">Wakana et al. (1996:22)</bibRefCitation>
noted that the &quot;absence of rooting of the molars in the Korean vole … is a characteristic that may have developed within a short period of evolutional time in the Korean population.&quot; The G-banding pattern of
<taxonomicName id="42A03C551A82F578544D7E842208291A" baseAuthorityName="Thomas" baseAuthorityYear="1907" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="regulus">
<emphasis id="8D0CBAFC2B6DC28FA4CABF59A1AA6887" italics="true" pageNumber="1025">regulus</emphasis>
</taxonomicName>
is &quot;essentially identical&quot; to that of
<taxonomicName id="F7855B513375AFEE0C8201F171FBE53D" baseAuthorityName="Mezhzherin and Serbenyuk" baseAuthorityYear="1992" class="Mammalia" family="Cricetidae" genus="Myodes" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="rufocanus">
<emphasis id="770F852045394AE52D4B955D656685F7" italics="true" pageNumber="1025">M. rufocanus</emphasis>
</taxonomicName>
, both differing from
<taxonomicName id="D0CB5A14A7FCE13F94C457604420DCEA" authorityName="Schreber" authorityYear="1780" class="Mammalia" family="Muridae" genus="Mus" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="glareolus">
<emphasis id="7942D18C2903630DD748D338F1C7EB03" italics="true" pageNumber="1025">M. glareolus</emphasis>
</taxonomicName>
, but Y-chromosome morphology implicates closer relationship between
<taxonomicName id="EA9C965E8ABAD19D387AF1448BF13FEB" baseAuthorityName="Thomas" baseAuthorityYear="1907" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="regulus">
<emphasis id="AF41E341BA481DAF830B0F4418C0144B" italics="true" pageNumber="1025">M. regulus</emphasis>
</taxonomicName>
and
<taxonomicName id="9A7F5F119592E44DE094D8BF503E9EC1" authority="(Iwasa et al., 1999 a)" baseAuthorityName="Iwasa" baseAuthorityYear="1999" class="Mammalia" family="Cricetidae" genus="Myodes" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="smithii">
<emphasis id="48214944818BC521A780F78542ED7A47" italics="true" pageNumber="1025">M. smithii</emphasis>
(
<bibRefCitation id="2234E205F369DF27AC250DC3ED454E41" author="Iwasa, M. A. &amp; S. H. Han &amp; H. Suzuki" refId="ref170003" refString="Iwasa, M. A., S. H. Han, and H. Suzuki. 1999 a. A karyological analysis of the Korean red-backed vole, Eothenomys regulus (Rodentia, Muridae), using differential staining methods. Mammal Study, 24: 35 - 41." year="1999">
Iwasa et al., 1999
<emphasis id="C2053C307170F9C11CD4CD00705493DC" italics="true" pageNumber="1025">a</emphasis>
</bibRefCitation>
)
</taxonomicName>
, a Japanese vole also having unrooted molars. As understated by
<bibRefCitation id="0BC95EC047E98F35D506FBAC3A8559FF" author="Iwasa, M. A. &amp; S. H. Han &amp; H. Suzuki" refId="ref170003" refString="Iwasa, M. A., S. H. Han, and H. Suzuki. 1999 a. A karyological analysis of the Korean red-backed vole, Eothenomys regulus (Rodentia, Muridae), using differential staining methods. Mammal Study, 24: 35 - 41." year="1999">
Iwasa et al. (1999
<emphasis id="E162EDF2E553DA70CB4EF62D19984A40" italics="true" pageNumber="1025">a</emphasis>
:40)
</bibRefCitation>
, phylogenetic affinities among
<taxonomicName id="351AF4B8ADACABD7B1202742EE470271" baseAuthorityName="Mezhzherin and Serbenyuk" baseAuthorityYear="1992" class="Mammalia" family="Cricetidae" genus="Myodes" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="rufocanus">
<emphasis id="1C1857650CCE23D1259404C8B9159C83" italics="true" pageNumber="1025">rufocanus</emphasis>
</taxonomicName>
,
<taxonomicName id="A0FCA570631AB663FD1835F73655A39F" baseAuthorityName="Thomas" baseAuthorityYear="1907" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="regulus">
<emphasis id="60A21AA641CC506149CF0A9C71BBE256" italics="true" pageNumber="1025">regulus</emphasis>
</taxonomicName>
, and
<taxonomicName id="3A29A6053932423741DC802905A522A1" class="Mammalia" family="Cricetidae" genus="Myodes" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="smithii">
<emphasis id="19F644501903488DE15B3FEF7F9DB6F6" italics="true" pageNumber="1025">smithii</emphasis>
</taxonomicName>
&quot;are extremely complicated.&quot; To this complicated mix must be added
<taxonomicName id="456F7884C6752714A7FA88460C211406" authorityName="Thomas" authorityYear="1908" class="Mammalia" family="Cricetidae" genus="Myodes" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="shanseius">
<emphasis id="10EA111757031F4F5B02CDC6DC731646" italics="true" pageNumber="1025">M. shanseius</emphasis>
</taxonomicName>
(also rootless), which is so morphologically similar to
<taxonomicName id="669DF860208EFAF53FCF21BB906DB8DC" baseAuthorityName="Thomas" baseAuthorityYear="1907" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="regulus">
<emphasis id="542660525637ACFFE7E10522C89E9F78" italics="true" pageNumber="1025">M. regulus</emphasis>
</taxonomicName>
that the same specimens have been variously identified as one or the other. They differ only in length of tail, interorbital breadth, and M3 occlusal patterns; as currently known, their distributions are allopatric, perhaps separated by the Liao He River in Liaoning Prov. (
<bibRefCitation id="8D2B627287C2BD622B0B3583138C6F82" author="Kaneko, Y." refId="ref179805" refString="Kaneko, Y. 1992 c. Identification and morphological characteristics of Clethrionomys rufocanus, Eothenomys shanseius, E. inez, and E. eva from the USSR, Mongolia, and northern and central China. Journal of the Mammalogical Society of Japan, 16: 71 - 95." year="1992">
Kaneko, 1992
<emphasis id="A0002777D474975BB7776BDCB76441E3" italics="true" pageNumber="1025">c</emphasis>
</bibRefCitation>
). The genetic integrity of
<taxonomicName id="817E9AC5A111F9D0E0BE8C7970FD76DA" baseAuthorityName="Thomas" baseAuthorityYear="1907" class="Mammalia" family="Cricetidae" genus="Eothenomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="regulus">
<emphasis id="D7CD0DA791067B004B8FCEDC736BD1DA" italics="true" pageNumber="1025">M. regulus</emphasis>
</taxonomicName>
relative to
<taxonomicName id="5EA77DB0634DFD9EC16D96C6499552E6" authorityName="Thomas" authorityYear="1908" class="Mammalia" family="Cricetidae" genus="Myodes" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="shanseius">
<emphasis id="027951B59E4B77C760F2F8B92EB5249F" italics="true" pageNumber="1025">M. shanseius</emphasis>
</taxonomicName>
similarly warrants additional study
</paragraph>
.
</paragraph>
</subSubSection>
</treatment>
</document>