treatments-xml/data/03/D0/87/03D087AEFFBAFFF7FF050A23FC90F9F8.xml

<document ID-DOI="http://doi.org/10.5281/zenodo.7353098" ID-ISBN="1-56098-217-9" ID-Zenodo-Dep="7353098" approvalRequired="3" approvalRequired_for_document="2" approvalRequired_for_originalDoi="1" checkinTime="1667534070963" checkinUser="GgServerImporter" docAuthor="Guy G. Musser &amp; Michael D. Carleton" docDate="1993" docId="03D087AEFFBAFFF7FF050A23FC90F9F8" docLanguage="en" docName="MammalSpeciesofTheWorld.1993.Muridae.501-755.pdf.imd" docOrigin="Mammal Species of the World (2 nd Edition), Washington and London: Smithsonian Institution Press" docTitle="Arvicanthis nairobae J. A. Allen 1909" docType="treatment" docVersion="3" lastPageNumber="577" masterDocId="FFE9FFD6FFF6FFBBFFF30B06FF93FFF3" masterDocTitle="Order Rodentia - Family Muridae" masterLastPageNumber="755" masterPageNumber="501" pageNumber="577" updateTime="1669256938330" updateUser="ExternalLinkService">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Order Rodentia - Family Muridae</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Guy G. Musser</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Michael D. Carleton</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:originInfo>
<mods:dateIssued>1993</mods:dateIssued>
<mods:publisher>Smithsonian Institution Press</mods:publisher>
<mods:place>
<mods:placeTerm>Washington and London</mods:placeTerm>
</mods:place>
</mods:originInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Editor</mods:roleTerm>
</mods:role>
<mods:namePart>Don E. Wilson</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Editor</mods:roleTerm>
</mods:role>
<mods:namePart>DeeAnn M. Reeder</mods:namePart>
</mods:name>
<mods:titleInfo>
<mods:title>Mammal Species of the World (2 nd Edition)</mods:title>
</mods:titleInfo>
<mods:part>
<mods:extent unit="page">
<mods:start>501</mods:start>
<mods:end>755</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:classification>book chapter</mods:classification>
<mods:identifier type="DOI">http://doi.org/10.5281/zenodo.7353098</mods:identifier>
<mods:identifier type="ISBN">1-56098-217-9</mods:identifier>
<mods:identifier type="Zenodo-Dep">7353098</mods:identifier>
</mods:mods>
<treatment ID-DOI="http://doi.org/10.5281/zenodo.7283663" ID-Zenodo-Dep="7283663" LSID="urn:lsid:plazi:treatment:03D087AEFFBAFFF7FF050A23FC90F9F8" httpUri="http://treatment.plazi.org/id/03D087AEFFBAFFF7FF050A23FC90F9F8" lastPageNumber="577" pageId="76" pageNumber="577">
<subSubSection box="[246,1482,293,331]" pageId="76" pageNumber="577" type="nomenclature">
<paragraph blockId="76.[246,1862,293,1547]" box="[246,1482,293,331]" pageId="76" pageNumber="577">
<treatmentCitation author="J. A. Allen" authority="J. A. Allen, 1909" authorityName="J. A. Allen" authorityYear="1909" box="[246,1472,293,331]" class="Mammalia" family="Muridae" genus="Arvicanthis" journal="Bull. Am. Mus. Nat. Hist." kingdom="Animalia" order="Rodentia" page="168" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="nairobae" title="Arvicanthis nairobae" volume="26" year="1909">
<taxonomicName authority="J. A. Allen, 1909" authorityName="J. A. Allen" authorityYear="1909" box="[246,876,293,331]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="nairobae">
<emphasis box="[246,585,293,331]" italics="true" pageId="76" pageNumber="577">Arvicanthis nairobae</emphasis>
J. A. Allen, 1909
</taxonomicName>
. 
<bibCitation author="J. A. Allen" box="[901,1472,293,331]" journal="Bull. Am. Mus. Nat. Hist." pageId="76" pageNumber="577" pagination="168" title="Arvicanthis nairobae" volume="26" year="1909">Bull. Am. Mus. Nat. Hist., 26:168</bibCitation>
</treatmentCitation>
.
</paragraph>
</subSubSection>
<subSubSection box="[288,804,337,375]" pageId="76" pageNumber="577" type="materials_examined">
<paragraph blockId="76.[246,1862,293,1547]" box="[288,804,337,375]" pageId="76" pageNumber="577">
TYPE LOCALITY: 
<materialsCitation box="[535,795,337,375]" country="Kenya" pageId="76" pageNumber="577">
<collectingCountry box="[535,645,337,375]" name="Kenya" pageId="76" pageNumber="577">Kenya</collectingCountry>
, Nairobi
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="76" pageNumber="577" type="distribution">
<paragraph blockId="76.[246,1862,293,1547]" pageId="76" pageNumber="577">
DISTRIBUTION: Recorded in and east of the Rift Valley from Mount Lololokwi (&quot;an isolated mountain east of the Mathews Range, about midway between Mount 
<collectingCountry box="[1576,1673,420,459]" name="Kenya" pageId="76" pageNumber="577">Kenia</collectingCountry>
and Mount 
<collectingRegion box="[499,660,462,501]" country="Kenya" name="Marsabit" pageId="76" pageNumber="577">Marsabit</collectingRegion>
,&quot; 
<bibRefCitation author="Hollister, N." box="[694,941,462,501]" pageId="76" pageNumber="577" refId="ref157105" refString="Hollister, N. 1919. East African mammals in the United States National Museum. Part II. Rodentia, Lagomorpha, and Tubulidentata. Bulletin of the United States National Museum, 99 (2): 1 - 184." year="1919">Hollister, 1919</bibRefCitation>
) in C 
<collectingCountry box="[1052,1156,462,501]" name="Kenya" pageId="76" pageNumber="577">Kenya</collectingCountry>
south to the 
<collectingRegion box="[1387,1655,462,501]" country="Tanzania" name="Dodoma" pageId="76" pageNumber="577">Dodoma region</collectingRegion>
in EC 
<collectingCountry box="[373,532,505,543]" name="Tanzania" pageId="76" pageNumber="577">Tanzania</collectingCountry>
; N and S limits unknown.
</paragraph>
</subSubSection>
<subSubSection box="[289,1123,547,585]" pageId="76" pageNumber="577" type="synonym_list">
<paragraph blockId="76.[246,1862,293,1547]" box="[289,1123,547,585]" pageId="76" pageNumber="577">
SYNONYMS: 
<emphasis box="[473,1123,547,585]" italics="true" pageId="76" pageNumber="577">
<taxonomicName authorityName="Dollman" authorityYear="1911" box="[473,606,547,585]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="chanleri">chanleri</taxonomicName>
, pallescens, praeceps, virescens.
</emphasis>
</paragraph>
</subSubSection>
<subSubSection pageId="76" pageNumber="577" type="discussion">
<paragraph blockId="76.[246,1862,293,1547]" pageId="76" pageNumber="577">
COMMENTS: The name 
<taxonomicName authorityName="J. A. Allen" authorityYear="1909" box="[658,791,588,627]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="nairobae">
<emphasis box="[658,791,588,627]" italics="true" pageId="76" pageNumber="577">nairobae</emphasis>
</taxonomicName>
is the oldest applicable to samples from east of the Rift Valley in 
<collectingCountry box="[538,644,628,667]" name="Kenya" pageId="76" pageNumber="577">Kenya</collectingCountry>
and 
<collectingCountry box="[733,886,628,667]" name="Tanzania" pageId="76" pageNumber="577">Tanzania</collectingCountry>
containing animals smaller in body size and gererally brighter and buffier in pelage than those larger and darker specimens we have identified as 
<taxonomicName baseAuthorityName="Desmarest" baseAuthorityYear="1822" box="[600,788,712,751]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="niloticus">
<emphasis box="[600,788,712,751]" italics="true" pageId="76" pageNumber="577">A. niloticus</emphasis>
</taxonomicName>
from west of the Rift. Some specimens of 
<taxonomicName authorityName="J. A. Allen" authorityYear="1909" box="[1520,1704,712,751]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="578" phylum="Chordata" rank="species" species="nairobae">
A. 
<emphasis box="[1570,1704,712,751]" italics="true" pageId="76" pageNumber="577">nairobae</emphasis>
</taxonomicName>
closely resemble those of 
<taxonomicName authorityName="Thomas" authorityYear="1903" baseAuthorityName="Thomas" baseAuthorityYear="1910" box="[687,891,754,792]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="somalicus">
<emphasis box="[687,891,754,792]" italics="true" pageId="76" pageNumber="577">A. somalicus</emphasis>
</taxonomicName>
in pelage coloration, and might be mistaken for it, but are larger in body size. 
<bibRefCitation author="Corbet, G. B. &amp; D. W. Yalden" box="[784,1219,796,834]" pageId="76" pageNumber="577" refId="ref68078" refString="Corbet, G. B., and D. W. Yalden. 1972. Recent records of mammals (other than bats) from Ethiopia. Bulletin of the British Museum (Natural History), Zoology Series, 22 (8): 213 - 252." year="1972">Corbet and Yalden (1972)</bibRefCitation>
even suggested that 
<taxonomicName authorityName="Dollman" authorityYear="1911" box="[1590,1720,796,834]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="chanleri">
<emphasis box="[1590,1720,796,834]" italics="true" pageId="76" pageNumber="577">chanleri</emphasis>
</taxonomicName>
might represent 
<emphasis box="[548,715,837,877]" italics="true" pageId="76" pageNumber="577">
<taxonomicName authorityName="Thomas" authorityYear="1903" baseAuthorityName="Thomas" baseAuthorityYear="1910" box="[548,708,837,877]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="somalicus">somalicus</taxonomicName>
,
</emphasis>
but the 
<typeStatus box="[860,1009,837,877]" pageId="76" pageNumber="577">holotype</typeStatus>
is larger and fits within the range of variation seen among samples of 
<emphasis box="[787,929,879,918]" italics="true" pageId="76" pageNumber="577">
<taxonomicName authorityName="J. A. Allen" authorityYear="1909" box="[787,925,879,918]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="nairobae">nairobae</taxonomicName>
.
</emphasis>
Records of sympatry between 
<taxonomicName authorityName="J. A. Allen" authorityYear="1909" box="[1467,1601,879,918]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="nairobae">
<emphasis box="[1467,1601,879,918]" italics="true" pageId="76" pageNumber="577">nairobae</emphasis>
</taxonomicName>
and 
<taxonomicName authorityName="Thomas" authorityYear="1903" baseAuthorityName="Thomas" baseAuthorityYear="1910" box="[1690,1847,879,918]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="somalicus">
<emphasis box="[1690,1847,879,918]" italics="true" pageId="76" pageNumber="577">somalicus</emphasis>
</taxonomicName>
are documented by series from Mount Lololokwi (specimens in the National Museum of Natural History), and the 
<collectingRegion box="[873,1139,964,1002]" country="Tanzania" name="Dodoma" pageId="76" pageNumber="577">Dodoma region</collectingRegion>
of 
<collectingCountry box="[1196,1348,964,1002]" name="Tanzania" pageId="76" pageNumber="577">Tanzania</collectingCountry>
(samples in the American Museum of Natural History), and the two are probably broadly sympatric throughout their ranges in 
<collectingCountry box="[639,743,1048,1086]" name="Kenya" pageId="76" pageNumber="577">Kenya</collectingCountry>
and 
<collectingCountry box="[832,985,1048,1086]" name="Tanzania" pageId="76" pageNumber="577">Tanzania</collectingCountry>
.
</paragraph>
<paragraph blockId="76.[246,1862,293,1547]" pageId="76" pageNumber="577">
The morphological and geographic relationships between 
<taxonomicName authorityName="J. A. Allen" authorityYear="1909" box="[1419,1604,1090,1128]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="nairobae">
<emphasis box="[1419,1604,1090,1128]" italics="true" pageId="76" pageNumber="577">A. nairobae</emphasis>
</taxonomicName>
and 
<taxonomicName baseAuthorityName="Desmarest" baseAuthorityYear="1822" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="niloticus">
<emphasis italics="true" pageId="76" pageNumber="577">A. niloticus</emphasis>
</taxonomicName>
require resolution, which could be accomplished by systematic review of the 
<emphasis box="[374,663,1173,1212]" italics="true" pageId="76" pageNumber="577">niloticus-nairobae</emphasis>
complex. For example, 
<taxonomicName authorityName="J. A. Allen" authorityYear="1909" box="[1080,1214,1173,1212]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="nairobae">
<emphasis box="[1080,1214,1173,1212]" italics="true" pageId="76" pageNumber="577">nairobae</emphasis>
</taxonomicName>
is found with 
<taxonomicName authorityName="Thomas" authorityYear="1903" baseAuthorityName="Thomas" baseAuthorityYear="1910" box="[1467,1673,1173,1212]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="somalicus">
<emphasis box="[1467,1673,1173,1212]" italics="true" pageId="76" pageNumber="577">A. somalicus</emphasis>
</taxonomicName>
in the 
<collectingRegion box="[374,641,1215,1254]" country="Tanzania" name="Dodoma" pageId="76" pageNumber="577">Dodoma region</collectingRegion>
and they are the only species of 
<taxonomicName authorityName="Lesson" authorityYear="1842" box="[1211,1399,1215,1254]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="genus">
<emphasis box="[1211,1399,1215,1254]" italics="true" pageId="76" pageNumber="577">Arvicanthis</emphasis>
</taxonomicName>
represented by specimens from E 
<collectingCountry box="[502,664,1257,1295]" name="Tanzania" pageId="76" pageNumber="577">Tanzania</collectingCountry>
. In contrast, samples from the 
<collectingRegion box="[1200,1317,1257,1295]" country="Tanzania" name="Tabora" pageId="76" pageNumber="577">Tabora</collectingRegion>
area, to the west of 
<collectingRegion box="[1676,1824,1257,1295]" country="Tanzania" name="Dodoma" pageId="76" pageNumber="577">Dodoma</collectingRegion>
, contain 
<taxonomicName authorityName="Thomas" authorityYear="1903" baseAuthorityName="Thomas" baseAuthorityYear="1910" box="[511,716,1299,1337]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="somalicus">
<emphasis box="[511,716,1299,1337]" italics="true" pageId="76" pageNumber="577">A. somalicus</emphasis>
</taxonomicName>
and a species significantly larger in body size with darker pelage than samples of 
<taxonomicName authorityName="J. A. Allen" authorityYear="1909" box="[658,841,1341,1380]" class="Mammalia" family="Muridae" genus="Arvicanthis" kingdom="Animalia" order="Rodentia" pageId="76" pageNumber="577" phylum="Chordata" rank="species" species="nairobae">
<emphasis box="[658,841,1341,1380]" italics="true" pageId="76" pageNumber="577">A. nairobae</emphasis>
</taxonomicName>
from 
<collectingRegion box="[949,1091,1341,1380]" country="Tanzania" name="Dodoma" pageId="76" pageNumber="577">Dodoma</collectingRegion>
. It is this larger species that ranges south into 
<collectingCountry box="[452,580,1382,1420]" name="Zambia" pageId="76" pageNumber="577">Zambia</collectingCountry>
and north through W 
<collectingCountry box="[969,1130,1382,1420]" name="Tanzania" pageId="76" pageNumber="577">Tanzania</collectingCountry>
, W 
<collectingCountry box="[1198,1308,1382,1420]" name="Kenya" pageId="76" pageNumber="577">Kenya</collectingCountry>
, and 
<collectingCountry box="[1404,1542,1382,1420]" name="Uganda" pageId="76" pageNumber="577">Uganda</collectingCountry>
. Studying the distribution of characters from samples collected along a transect between the Dodoma and Tabora regions would elucidate character and geographic relationships between the two kinds.
</paragraph>
</subSubSection>
</treatment>
</document>