treatments-xml/data/EE/51/B8/EE51B8E59D06F031EB8CBA8A1C010935.xml
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<document ID-CLB-Dataset="297097" ID-DOI="10.5281/zenodo.7316535" ID-GBIF-Dataset="f9373c90-73c5-4ee4-b0f8-4c371f527d91" ID-ISBN="0-8018-8221-4" checkinTime="1670905209323" checkinUser="guido" docAuthor="Wilson, Don E. &amp; Reeder, DeeAnn" docDate="2005" docId="EE51B8E59D06F031EB8CBA8A1C010935" docLanguage="en" docName="MammalSpeciesofTheWorld.2005.Muridae.1189-1531.xml" docOrigin="Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore: The Johns Hopkins University Press" docTitle="Crossomys Thomas 1907" docType="treatment" docVersion="4" id="A2267A57FF8A65DA07E1D2E970F9422A" lastPageNumber="1311" masterDocId="A2267A57FF8A65DA07E1D2E970F9422A" masterDocTitle="Order Rodentia - Family Muridae" masterLastPageNumber="1531" masterPageNumber="1189" pageNumber="1311" updateTime="1716781534040" updateUser="ExternalLinkService">
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<mods:title id="061CDAFFE520E78956C92DEAE9DE7D2D">Order Rodentia - Family Muridae</mods:title>
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<mods:namePart id="133D59A46B44D670274BBDC34126C1A4">Wilson, Don E.</mods:namePart>
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<mods:namePart id="5C1D0D71E53E50892859858F3545E588">Reeder, DeeAnn</mods:namePart>
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<mods:title id="3A6E1CC9B72C4452A977B3B2CBFA738A">Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2</mods:title>
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<treatment id="EE51B8E59D06F031EB8CBA8A1C010935" ID-DOI="http://doi.org/10.5281/zenodo.11334547" ID-GBIF-Taxon="231539987" ID-Zenodo-Dep="11334547" LSID="urn:lsid:plazi:treatment:EE51B8E59D06F031EB8CBA8A1C010935" httpUri="http://treatment.plazi.org/id/EE51B8E59D06F031EB8CBA8A1C010935" lastPageNumber="1311" pageNumber="1311" sourceUrl="http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?id=13001309">
<subSubSection id="DEAD849FFB45091C6C5611C357DBEB0A" pageNumber="1311" type="nomenclature">
<paragraph id="D3CBC0924FBA0DCB7E020FFC19956ABB" pageNumber="1311">
<taxonomicName id="DA11E4B5AE4EB4B595D5C748E8C657C1" ID-CoL="62P2Y" authority="Thomas 1907" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" pageNumber="1311" phylum="Chordata" rank="genus">
<emphasis id="03E92CA0D3BCCA62D3B582C0494D937A" italics="true" pageNumber="1311">Crossomys</emphasis>
Thomas 1907
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="9E50A8978DCDF4C28226D92747111222" pageNumber="1311" type="reference_group">
<paragraph id="78358295EA350A06FC762242D29E40FE" pageNumber="1311">
<treatmentCitation id="E01DC2658FFC085A163A4DBCDEDACB2E" author="Thomas" authority="Thomas 1907" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" journal="Ann. Mag. Nat. Hist., ser. 7" kingdom="Animalia" order="Rodentia" page="70" pageNumber="1311" phylum="Chordata" rank="genus" title="Crossomys" volume="20" year="1907">
<taxonomicName id="B1B248942A01E5647040E6A3CA30E92F" ID-CoL="62P2Y" authority="Thomas 1907" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" pageNumber="1311" phylum="Chordata" rank="genus">
<emphasis id="46E718965BAC89C867D181DA7672D289" italics="true" pageNumber="1311">Crossomys</emphasis>
Thomas 1907
</taxonomicName>
,
<bibCitation id="1FE9DD40B87B5B944D70F1C8102F7D96" author="Thomas" journal="Ann. Mag. Nat. Hist., ser. 7" pageNumber="1311" pagination="70" title="Crossomys" volume="20" year="1907">Ann. Mag. Nat. Hist., ser. 7, 20: 70</bibCitation>
</treatmentCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="8C70172E3185AD59A64087CB83643268" pageNumber="1311" type="type_taxon">
<paragraph id="D54A1D1107DEAFE4309617BFBDE066B5" pageNumber="1311">
<emphasis id="A9EDCEA20095AA9755F51F16EF714F17" inLineHeading="true" pageNumber="1311">Type Species:</emphasis>
<taxonomicName id="BE1E84BA1062A7FA4CFA318C5F6FCC44" authority="Thomas 1907" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" pageNumber="1311" phylum="Chordata" rank="species" species="moncktoni">
<emphasis id="BBB94761AF59865DB49D719BCD402A9D" italics="true" pageNumber="1311">Crossomys moncktoni</emphasis>
Thomas 1907
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="116ED34BD34F53F8E803380F6A8EF137" pageNumber="1311" type="child_taxa">
<paragraph id="72491359FDAFCE04BAD979D1D02D16AF" pageNumber="1311">
<emphasis id="1E86E819CD09DE09BCF0B0A3B5FCEF65" inLineHeading="true" pageNumber="1311">Species and subspecies:</emphasis>
1 species:
</paragraph>
<paragraph id="E963826B00A8B0A02468C746983D11FD" pageNumber="1311">
Species
<taxonomicName id="810B1A1AD980BDBC0C5BB1E024A52C67" authority="Thomas 1907" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" pageNumber="1311" phylum="Chordata" rank="species" species="moncktoni">
<emphasis id="FE9D1ED6793C235027DF964A23354DD2" italics="true" pageNumber="1311">Crossomys moncktoni</emphasis>
Thomas 1907
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="9631C27332136DBE1277210E2CAC1FEE" pageNumber="1311" type="discussion">
<paragraph id="801E569286EAFDA6C6E86FD1F3D89905" pageNumber="1311">
<emphasis id="51ADA92E943C8D2F152B1340D0C83656" inLineHeading="true" pageNumber="1311">Discussion:</emphasis>
<taxonomicName id="EB889777543A31E552BEB5691DB91C82" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="CC9F76A177333B1EDFF5C68DC047AD40" italics="true" pageNumber="1311">Hydromys</emphasis>
</taxonomicName>
Division. Member of New
<collectingCountry id="A915CEA1076207D3B1CC57E77DDEADB5" name="Guinea-Bissau">Guinea</collectingCountry>
Old Endemics (
<bibRefCitation id="07FC6679EFC426A1F64AB819B918487F" author="Musser, G. G." refId="ref251734" refString="Musser, G. G. 1981 c. The giant rat of Flores and its relatives east of Borneo and Bali. Bulletin of the American Museum of Natural History, 169: 67 - 176." year="1981">
Musser, 1981
<emphasis id="28CF0F1F453007D73CE8577509D32826" italics="true" pageNumber="1311">c</emphasis>
</bibRefCitation>
). Based on phallic morphology, Lidicker (1968) speculated that
<taxonomicName id="A4DC8AEC2B0E78B2F24E999DD6FA5795" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="moncktoni">
<emphasis id="BDB75D57B302CEAF6A8D4636B8819B9C" italics="true" pageNumber="1311">C. moncktoni</emphasis>
</taxonomicName>
is not closely related to
<taxonomicName id="0D56EBC62773C95ED716EB0205D79BF9" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="D4C17BA8FDEE7FF2E013779039218621" italics="true" pageNumber="1311">Hydromys</emphasis>
</taxonomicName>
, an affinity supported by microcompliment fixation of albumin that instead clusters
<taxonomicName id="F35EAC9CAD8502F8091D92A35E236029" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="F56588920AEBB56C8707CA06B612D58F" italics="true" pageNumber="1311">Crossomys</emphasis>
</taxonomicName>
with
<taxonomicName id="2E5D9077F90C90807DFC067B888F70AC" authorityName="Thomas" authorityYear="1897" class="Mammalia" family="Muridae" genus="Leptomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="4C6916591AAB786143687EFD97A1FF0C" italics="true" pageNumber="1311">Leptomys</emphasis>
</taxonomicName>
,
<taxonomicName id="E9363ED86E2EEEEBD55FA4B3B7197CAA" authorityName="Thomas" authorityYear="1889" class="Mammalia" family="Muridae" genus="Xeromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="E7E364E7E35F35374ADC2F70E5D98F2D" italics="true" pageNumber="1311">Xeromys</emphasis>
</taxonomicName>
, and
<taxonomicName id="B4EE53DD08FDC6EEA61CE4C3EB8D5D51" authorityName="Rümmler" authorityYear="1934" class="Mammalia" family="Muridae" genus="Pseudohydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="61B6907E5B5166486FEA735A271B997F" italics="true" pageNumber="1311">Pseudohydromys</emphasis>
</taxonomicName>
(which includes
<taxonomicName id="38CEFA4D8008893A95F124C1FCE1CBA2" authorityName="Laurie and Hill" authorityYear="1954" class="Mammalia" family="Muridae" genus="Mayermys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="3AB802C201B6749072707A03BCFA77C3" italics="true" pageNumber="1311">Mayermys</emphasis>
</taxonomicName>
and
<taxonomicName id="23B2E8C62384DC10789DDBC4E6AD40EC" authorityName=", Laurie" authorityYear="1952" class="Mammalia" family="Muridae" genus="Neohydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="98BABF18FD5EAA439ACE90D9AF133A81" italics="true" pageNumber="1311">Neohydromys</emphasis>
</taxonomicName>
), an assemblage that albumin immunology indicated is part of a larger clade containing members of our
<taxonomicName id="8BE1B9E9439DAD29E6B97E0CF577CA90" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="5215967FFB21D86D6165FD8449F505BE" italics="true" pageNumber="1311">Hydromys</emphasis>
</taxonomicName>
,
<taxonomicName id="82FFEAC3DAEA60329911A69F38EB52EA" authorityName="Gray" authorityYear="1832" class="Mammalia" family="Muridae" genus="Pseudomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="3184EA4B502B7E2DA8749F54F64C5600" italics="true" pageNumber="1311">Pseudomys</emphasis>
</taxonomicName>
, and
<taxonomicName id="03DC45C9340D9F44F95D09740328827A" authority="Divisions" authorityName="Divisions" class="Mammalia" family="Muridae" genus="Uromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="256A68708686D5321A70834032D9D2EC" italics="true" pageNumber="1311">Uromys</emphasis>
Divisions
</taxonomicName>
, an &quot;Austalasian clade&quot; (
<bibRefCitation id="CCC2AABBD63DC74DDBC65830ADC2B4FF" author="Watts, C. H. S. &amp; P. R. Baverstock" refId="ref384360" refString="Watts, C. H. S., and P. R. Baverstock. 1994 a. Evolution in New Guinean Muridae (Rodentia) assessed by microcomplement fixation of albumin. Australian Journal of Zoology, 42: 295 - 306." year="1994">
Watts and Baverstock, 1994
<emphasis id="9DBE17422492247E9359F516A9F4E61B" italics="true" pageNumber="1311">a</emphasis>
</bibRefCitation>
, 1995
<emphasis id="B44F19DB32361FAF17B39F8BF1A3C60D" italics="true" pageNumber="1311">b</emphasis>
, 1996). Despite the alliance suggested by albumin immunology, we place
<taxonomicName id="8554BA167C4DCE71579804C0F2D77479" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="DB10D187B901E635C017FC54A375063B" italics="true" pageNumber="1311">Crossomys</emphasis>
</taxonomicName>
in the
<taxonomicName id="C40096E6EC2CAF2E1DCC6D505456F400" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="B4A263EC3E906B422C99AC751FBF06BD" italics="true" pageNumber="1311">Hydromys</emphasis>
</taxonomicName>
Division along with
<taxonomicName id="0E3F9B569ED1419718871A891EE0E804" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="6B4738CE02E4AC63876150637DE1CF07" italics="true" pageNumber="1311">Hydromys</emphasis>
</taxonomicName>
,
<taxonomicName id="EE3EEDB34B2A4375B8833E74A19AF7DD" authorityName="Tate and Archbold" authorityYear="1941" class="Mammalia" family="Muridae" genus="Microhydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="52F4B59B9E802201DA3C1EBAE1A9F8AA" italics="true" pageNumber="1311">Microhydromys</emphasis>
</taxonomicName>
, and
<taxonomicName id="4FF5DD2C908DFEDF52060FEC57A4B81D" authorityName="Poche" authorityYear="1906" class="Mammalia" family="Muridae" genus="Parahydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="E33D5833767E423F7F0AC798AC0C5026" italics="true" pageNumber="1311">Parahydromys</emphasis>
</taxonomicName>
. Overall morphology of
<taxonomicName id="AC5539A82F9DCB4D72FBDE9E0B80C53B" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="1E3355845EEBC3F9BF4529DBC3B8BB28" italics="true" pageNumber="1311">Crossomys</emphasis>
</taxonomicName>
, including a shared primitive cephalic arterial pattern, resembles
<taxonomicName id="05F06092E86BF97FCF0B6CE042B7FC4E" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="498B0BF1AE228CD04B09FEE08046C4DA" italics="true" pageNumber="1311">Hydromys</emphasis>
</taxonomicName>
and its allies more closely than it does any genus in the
<taxonomicName id="672D2231E9546EFD20DE03ACF1216828" authorityName="Thomas" authorityYear="1889" class="Mammalia" family="Muridae" genus="Xeromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="779AECB3F5F5DA8A0C58E8729908EA0F" italics="true" pageNumber="1311">Xeromys</emphasis>
</taxonomicName>
Division. Unpublished phylogenetic analyses of mtDNA cytochrome
<emphasis id="BDFBFA8591CF4533FF873C0FD6B8606E" italics="true" pageNumber="1311">b</emphasis>
sequences placed
<taxonomicName id="C255AE840416531E5401344921B12A7A" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="1FEA9F693B34ACCB26047DB82D8B9CF6" italics="true" pageNumber="1311">Crossomys</emphasis>
</taxonomicName>
closer to
<taxonomicName id="0C16EBCB3120B4D88710626678AE41D0" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="22BB664CE03302675CEEBBE053674F73" italics="true" pageNumber="1311">Hydromys</emphasis>
</taxonomicName>
than to
<taxonomicName id="293EF41D432FFDCFFA3100BB31A58E81" authorityName="Thomas" authorityYear="1897" class="Mammalia" family="Muridae" genus="Leptomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="BADD18CF09C1220CDD2FE541DC3EE1BB" italics="true" pageNumber="1311">Leptomys</emphasis>
</taxonomicName>
(K. Aplin, in litt., 2004). Results of the data from microcomplement fixation of albumin (
<bibRefCitation id="EA8DBC6CC5E07C32705B06F36DB0FC65" author="Watts, C. H. S. &amp; P. R. Baverstock" refId="ref384360" refString="Watts, C. H. S., and P. R. Baverstock. 1994 a. Evolution in New Guinean Muridae (Rodentia) assessed by microcomplement fixation of albumin. Australian Journal of Zoology, 42: 295 - 306." year="1994">
Watts and Baverstock, 1994
<emphasis id="C05DDC8F3A0C9FBB6EFEC0A664D8CAD7" italics="true" pageNumber="1311">a</emphasis>
</bibRefCitation>
) may not be a reliable indicator of affinities in this case.
<taxonomicName id="D0D3FAC10F985C5FC9F4E177819DE1F0" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="61E62E9ECD307F66E71265E95A7E2F64" italics="true" pageNumber="1311">Crossomys</emphasis>
</taxonomicName>
is clearly distant from
<taxonomicName id="D3C6852EB9EA0B996B261AF5143C34B7" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="1D92070D10F54CC857E0F6BA7C5C59CF" italics="true" pageNumber="1311">Hydromys</emphasis>
</taxonomicName>
and
<taxonomicName id="53E9B6D743C785743834C8A4B0F55995" authorityName="Poche" authorityYear="1906" class="Mammalia" family="Muridae" genus="Parahydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="9F2E01C07A6BED607DACDCF649878E4D" italics="true" pageNumber="1311">Parahydromys</emphasis>
</taxonomicName>
, but the albumin immunological distances within each group were nearly as great as those between the the group with
<taxonomicName id="53E06A41FC0A389A051B5F08F36FA435" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="83AC24EB1A92D3FF504803912CFF9F92" italics="true" pageNumber="1311">Hydromys</emphasis>
</taxonomicName>
and
<taxonomicName id="B239F4EBEAB950A89B12613368B80435" authorityName="Poche" authorityYear="1906" class="Mammalia" family="Muridae" genus="Parahydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="69E0C0DFB56FF2AC51C6566D5F1572B8" italics="true" pageNumber="1311">Parahydromys</emphasis>
</taxonomicName>
and the cluster containing
<taxonomicName id="11E9BF19E13F7CB93168053D50EF05F7" authorityName="Thomas" authorityYear="1889" class="Mammalia" family="Muridae" genus="Xeromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="E8E6F0222921E4CF258D5491221651E8" italics="true" pageNumber="1311">Xeromys</emphasis>
</taxonomicName>
,
<taxonomicName id="6AD14B8A68F065967539BC81BB81041C" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="FCA971E824F250EF3771A7A13622869D" italics="true" pageNumber="1311">Crossomys</emphasis>
</taxonomicName>
,
<taxonomicName id="FD07E69E63ECB1EE75FAA3A7B22695D0" authorityName="Thomas" authorityYear="1897" class="Mammalia" family="Muridae" genus="Leptomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="3972F4628A6D6E5CBED682921E7B3595" italics="true" pageNumber="1311">Leptomys</emphasis>
</taxonomicName>
, and
<taxonomicName id="2A0FF77CD6BB0C58D90D95D2AD31EF25" authorityName="Rümmler" authorityYear="1934" class="Mammalia" family="Muridae" genus="Pseudohydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="9F89678B34E9F0AA360900EC18D6DFE1" italics="true" pageNumber="1311">Pseudohydromys</emphasis>
</taxonomicName>
(K. Aplin, in litt., 2004).
<taxonomicName id="4742D940FB559C1E0AC3FD6999E37A35" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="383E9C5E4E2B57CB7237DF1B75623D8B" italics="true" pageNumber="1311">Hydromys</emphasis>
</taxonomicName>
, as represented by
<taxonomicName id="EB977B65FB4C10E19405F011EF50A5CC" authorityName="E. Geoffroy" authorityYear="1804" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="chrysogaster">
<emphasis id="BDE347A0C8F4C92AE4C4ABA6548F5FD4" italics="true" pageNumber="1311">H. chrysogaster</emphasis>
</taxonomicName>
, is an amphibious generalist, utilizing a range of aquatic and semiaquatic prey, from arthropods and mollusks to small vertebrates (Olsen, 1995).
<taxonomicName id="2ED141A70DEE7A9F597EA21B072F96D2" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="moncktoni">
<emphasis id="70937A9B14B3232032E60048ADD829FB" italics="true" pageNumber="1311">Crossomys moncktoni</emphasis>
</taxonomicName>
is highly specialized, both in external and cranial morphology for feeding apparently exclusively on aquatic insects, mostly nymphs and larvae (
<bibRefCitation id="09E12E15A36BD687BA792595ADFECE15" author="Voss, R. S." refId="ref378240" refString="Voss, R. S. 1988. Systematics and ecology of ichthyomyine rodents (Muroidea): Patterns of morphological evolution in a small adaptive radiation. Bulletin of the American Museum of Natural History, 188: 259 - 493." year="1988">Voss, 1988</bibRefCitation>
). Among amphibious muroids, each prey regime exemplified by
<taxonomicName id="EDBEE65392CD1E2D29C95B3914B36430" authorityName="Geoffroy" authorityYear="1804" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="leucogaster">
<emphasis id="E1D2C78F9FA8F1953CBE6945E90E390C" italics="true" pageNumber="1311">Hydromys leucogaster</emphasis>
</taxonomicName>
and
<taxonomicName id="6DFD3472CB83985908A8F25B9B9EA6AE" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="F16092A4472547B6E164607041E74434" italics="true" pageNumber="1311">Crossomys</emphasis>
</taxonomicName>
is associated with particular external and cranial morphologies (
<bibRefCitation id="E9E26D9A58C043799F6F39D9432267DD" author="Voss, R. S." refId="ref378240" refString="Voss, R. S. 1988. Systematics and ecology of ichthyomyine rodents (Muroidea): Patterns of morphological evolution in a small adaptive radiation. Bulletin of the American Museum of Natural History, 188: 259 - 493." year="1988">Voss, 1988</bibRefCitation>
). In many respects, the cranial specializations of
<taxonomicName id="D2C9E4D17A63B2DB23E93483BCA17622" authorityName="Thomas" authorityYear="1907" class="Mammalia" family="Muridae" genus="Crossomys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="genus">
<emphasis id="6DC083A267CB4807498828C0A3D2D88B" italics="true" pageNumber="1311">Crossomys</emphasis>
</taxonomicName>
form an enlarged version of the cranial conformation characterizing
<taxonomicName id="531C6DD9C3CD18885BF0DB72FC5CC0FF" class="Mammalia" family="Muridae" genus="Hydromys" kingdom="Animalia" order="Rodentia" phylum="Chordata" rank="species" species="habbema">
<emphasis id="CB5CA7C1D9EA514246B36675AA5A1459" italics="true" pageNumber="1311">Hydromys habbema</emphasis>
</taxonomicName>
(see Flannery, 1995
<emphasis id="2D449650C8625BC361400716F88CAF42" italics="true" pageNumber="1311">a</emphasis>
:plate 24), which also preys predominantly but not exclusively on aquatic insect larvae and nymphs (
<bibRefCitation id="6B493F628EB3FEC5B1F7C827116AFF0D" author="Voss, R. S." refId="ref378240" refString="Voss, R. S. 1988. Systematics and ecology of ichthyomyine rodents (Muroidea): Patterns of morphological evolution in a small adaptive radiation. Bulletin of the American Museum of Natural History, 188: 259 - 493." year="1988">Voss, 1988</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>