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<document id="DF8153FB09394E4F5B540B5BB79104EB" ID-DOI="10.11646/zootaxa.3717.2.1" ID-GBIF-Dataset="fad4163f-156b-4f1a-a5e9-c9f48df52e0a" ID-ISSN="1175-5326" ID-Zenodo-Dep="248539" ID-ZooBank="C8CDC011-974C-48B4-9E03-88F570EEDE13" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460683027315" checkinUser="plazi" docAuthor="Morehouse, Reid L. &amp; Tobler, Michael" docDate="2013" docId="039504762C62144DFF11FE0CFB7E3464" docLanguage="en" docName="zt03717p157.pdf" docOrigin="Zootaxa 3717 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Orconectes nana Williams 1952" docType="treatment" docVersion="8" lastPageNumber="132" masterDocId="FFAC7C0E2C7D1452FF86FFBBFFE3316F" masterDocTitle="Crayfishes (Decapoda: Cambaridae) of Oklahoma: identification, distributions, and natural history" masterLastPageNumber="157" masterPageNumber="101" pageNumber="132" updateTime="1698350735770" updateUser="plazi">
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<mods:title id="377221C43546D5EF563F958579613D7B">Crayfishes (Decapoda: Cambaridae) of Oklahoma: identification, distributions, and natural history</mods:title>
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<mods:namePart id="B04DE738649CA399E2056F3AC184E291">Morehouse, Reid L.</mods:namePart>
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<treatment id="039504762C62144DFF11FE0CFB7E3464" ID-DOI="http://doi.org/10.5281/zenodo.5686040" ID-GBIF-Taxon="119576458" ID-Zenodo-Dep="5686040" LSID="urn:lsid:plazi:treatment:039504762C62144DFF11FE0CFB7E3464" httpUri="http://treatment.plazi.org/id/039504762C62144DFF11FE0CFB7E3464" lastPageNumber="132" pageId="31" pageNumber="132">
<subSubSection id="C326E6EB2C62144DFF11FE0CFF3C33C8" pageId="31" pageNumber="132" type="nomenclature">
<paragraph id="8B83B5602C62144DFF11FE0CFCE130BD" blockId="31.[151,770,439,466]" box="[151,770,439,466]" pageId="31" pageNumber="132">
<heading id="D0CB020C2C62144DFF11FE0CFCE130BD" bold="true" box="[151,770,439,466]" fontSize="11" level="1" pageId="31" pageNumber="132" reason="1">
<emphasis id="B94869722C62144DFF11FE0CFCE130BD" bold="true" box="[151,770,439,466]" pageId="31" pageNumber="132">
<taxonomicName id="4C3CCEE32C62144DFF11FE0CFDCB30BD" ID-CoL="7W5YZ" authority="Williams, 1952" authorityName="Williams" authorityYear="1952" box="[151,552,439,466]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="species" species="nana">
<emphasis id="B94869722C62144DFF11FE0CFE8030BE" bold="true" box="[151,355,439,465]" italics="true" pageId="31" pageNumber="132">Orconectes nana</emphasis>
Williams, 1952
</taxonomicName>
: Midget Crayfish
</emphasis>
</heading>
</paragraph>
<paragraph id="8B83B5602C62144DFF11FE45FF3C33C8" blockId="31.[151,1436,510,1291]" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFF11FE45FE443378" bold="true" box="[151,423,510,535]" pageId="31" pageNumber="132">General charateristics.</emphasis>
Adults rarely exceeds
<quantity id="4CC418852C62144DFD2FFE45FD1A3379" box="[681,761,510,535]" metricMagnitude="-2" metricUnit="m" metricValue="5.0" pageId="31" pageNumber="132" unit="mm" value="50.0">50 mm</quantity>
in total length. The carapace is nearly equal in length to the abdomen. The rostrum is narrow with a well-developed trough-like depression. Chelae are short but broad and look oversized relative to body size. In form I males, gonopods have two long, slender, and slightly curved processes that reach the base of the second pair of pereiopods. In females, the annulus ventralis has a deep fossa (Williams, 1952).
</paragraph>
</subSubSection>
<subSubSection id="C326E6EB2C62144DFF41FD09FDBB3234" pageId="31" pageNumber="132" type="description">
<paragraph id="8B83B5602C62144DFF41FD09FC0C327C" blockId="31.[151,1436,510,1291]" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFF41FD09FE6033A4" bold="true" box="[199,387,690,715]" pageId="31" pageNumber="132">Life coloration.</emphasis>
The background color is uniform olive-tan to brown without any colorful markings. The cheeks exhibit a yellowish spot with a reddish edge. There is a dark brown to black saddle at the conjunction of the carapace and abdomen (
<figureCitation id="1307A9E52C62144DFE22FD41FDF5327C" box="[420,534,762,787]" captionStart="FIGURES 61 68. 61" captionStartId="52.[151,264,1654,1676]" captionTargetBox="[253,1332,193,1631]" captionTargetId="figure@52.[253,1333,193,1632]" captionTargetPageId="52" captionText="FIGURES 61 68. 61. Orconectes nais 62. Potential distribution of Orconectes nais 63. Orconectes nana 64. Potential distribution of Orconectes nana 65. Orconectes neglectus neglectus 66. Potential distribution of Orconectes neglectus neglectus 67. Orconectes palmeri longimanus 68. Potential distribution of Orconectes palmeri longimanus." httpUri="https://zenodo.org/record/248545/files/figure.png" pageId="31" pageNumber="132">Figure 63</figureCitation>
). The ventral side is light yellow to white.
</paragraph>
<paragraph id="8B83B5602C62144DFF41FCA5FDBB3234" blockId="31.[151,1436,510,1291]" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFF41FCA5FE623258" bold="true" box="[199,385,798,823]" pageId="31" pageNumber="132">Similar species.</emphasis>
In Oklahoma,
<taxonomicName id="4C3CCEE32C62144DFDACFCA4FD663259" box="[554,645,799,822]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="species" species="nana">
<collectingCountry id="F32BF5F02C62144DFDACFCA4FDDD3259" box="[554,574,799,822]" name="Iceland" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFDACFCA4FDDD3259" box="[554,574,799,822]" italics="true" pageId="31" pageNumber="132">O</emphasis>
</collectingCountry>
.
<emphasis id="B94869722C62144DFDCBFCA4FD663259" box="[589,645,799,822]" italics="true" pageId="31" pageNumber="132">nana</emphasis>
</taxonomicName>
closely resembles
<taxonomicName id="4C3CCEE32C62144DFCDAFCA4FC323259" box="[860,977,799,822]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="species" species="macrus">
<collectingCountry id="F32BF5F02C62144DFCDAFCA4FC933259" box="[860,880,799,822]" name="Iceland" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFCDAFCA4FC933259" box="[860,880,799,822]" italics="true" pageId="31" pageNumber="132">O</emphasis>
</collectingCountry>
.
<emphasis id="B94869722C62144DFCF8FCA4FC323259" box="[894,977,799,822]" italics="true" pageId="31" pageNumber="132">macrus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C3CCEE32C62144DFB8FFCA4FB543259" box="[1033,1207,798,822]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="subSpecies" species="meeki" subSpecies="brevis">
<collectingCountry id="F32BF5F02C62144DFB8FFCA4FBFE3259" box="[1033,1053,799,822]" name="Iceland" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFB8FFCA4FBFE3259" box="[1033,1053,799,822]" italics="true" pageId="31" pageNumber="132">O</emphasis>
</collectingCountry>
.
<emphasis id="B94869722C62144DFBAAFCA5FB543259" box="[1068,1207,798,822]" italics="true" pageId="31" pageNumber="132">meeki brevis</emphasis>
</taxonomicName>
. See
<taxonomicName id="4C3CCEE32C62144DFB70FCA4FA8F3259" box="[1270,1388,799,822]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="species" species="macrus">
<emphasis id="B94869722C62144DFB70FCA4FAE93259" box="[1270,1290,799,822]" italics="true" pageId="31" pageNumber="132">
<collectingCountry id="F32BF5F02C62144DFB70FCA4FAE93259" box="[1270,1290,799,822]" name="Iceland" pageId="31" pageNumber="132">O</collectingCountry>
</emphasis>
.
<emphasis id="B94869722C62144DFA9FFCA4FA8F3259" box="[1305,1388,799,822]" italics="true" pageId="31" pageNumber="132">macrus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C3CCEE32C62144DFF11FCF8FEA63234" box="[151,325,835,859]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="subSpecies" species="meeki" subSpecies="brevis">
<collectingCountry id="F32BF5F02C62144DFF11FCF8FF483235" box="[151,171,835,858]" name="Iceland" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFF11FCF8FF483235" box="[151,171,835,858]" italics="true" pageId="31" pageNumber="132">O</emphasis>
</collectingCountry>
.
<emphasis id="B94869722C62144DFF3FFCF8FEA63234" box="[185,325,835,859]" italics="true" pageId="31" pageNumber="132">meeki brevis</emphasis>
</taxonomicName>
sections for differences.
</paragraph>
</subSubSection>
<subSubSection id="C326E6EB2C62144DFF41FCDDFB433514" pageId="31" pageNumber="132" type="distribution">
<paragraph id="8B83B5602C62144DFF41FCDDFC913560" blockId="31.[151,1436,510,1291]" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFF41FCDDFE1F3210" bold="true" box="[199,508,870,895]" pageId="31" pageNumber="132">Distribution and habitat.</emphasis>
<taxonomicName id="4C3CCEE32C62144DFD8FFCDCFD2F3211" box="[521,716,871,894]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="species" species="nana">
<emphasis id="B94869722C62144DFD8FFCDCFD2F3211" box="[521,716,871,894]" italics="true" pageId="31" pageNumber="132">Orconectes nana</emphasis>
</taxonomicName>
occurs in the upper Illinois River in eastern Oklahoma and northwestern Arkansas. Our ecological niche model indicates that
<taxonomicName id="4C3CCEE32C62144DFC1AFC30FC1A32CD" box="[924,1017,907,930]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="species" species="nana">
<collectingCountry id="F32BF5F02C62144DFC1AFC30FC5332CD" box="[924,944,907,930]" name="Iceland" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFC1AFC30FC5332CD" box="[924,944,907,930]" italics="true" pageId="31" pageNumber="132">O</emphasis>
</collectingCountry>
.
<emphasis id="B94869722C62144DFC47FC30FC1A32CD" box="[961,1017,907,930]" italics="true" pageId="31" pageNumber="132">nana</emphasis>
</taxonomicName>
is likely confined to this region, as larger rivers do not provide suitable environmental conditions and habitat (
<figureCitation id="1307A9E52C62144DFB83FC15FB9832A8" box="[1029,1147,942,967]" captionStart="FIGURES 61 68. 61" captionStartId="52.[151,264,1654,1676]" captionTargetBox="[253,1332,193,1631]" captionTargetId="figure@52.[253,1333,193,1632]" captionTargetPageId="52" captionText="FIGURES 61 68. 61. Orconectes nais 62. Potential distribution of Orconectes nais 63. Orconectes nana 64. Potential distribution of Orconectes nana 65. Orconectes neglectus neglectus 66. Potential distribution of Orconectes neglectus neglectus 67. Orconectes palmeri longimanus 68. Potential distribution of Orconectes palmeri longimanus." httpUri="https://zenodo.org/record/248545/files/figure.png" pageId="31" pageNumber="132">Figure 64</figureCitation>
).
<taxonomicName id="4C3CCEE32C62144DFB15FC14FB1232A9" box="[1171,1265,943,966]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="species" species="nana">
<collectingCountry id="F32BF5F02C62144DFB15FC14FB4432A9" box="[1171,1191,943,966]" name="Iceland" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFB15FC14FB4432A9" box="[1171,1191,943,966]" italics="true" pageId="31" pageNumber="132">O</emphasis>
</collectingCountry>
.
<emphasis id="B94869722C62144DFB3FFC14FB1232A9" box="[1209,1265,943,966]" italics="true" pageId="31" pageNumber="132">nana</emphasis>
</taxonomicName>
inhabits clear, permanently flowing Ozark streams with gravel substrate in fast shallow water. It usually digs under large rocks or digs short tunnels under smaller gravel and is a tertiary burrower.
</paragraph>
<paragraph id="8B83B5602C62144DFF41FBA1FB433514" blockId="31.[151,1436,510,1291]" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFF41FBA1FEBB355C" bold="true" box="[199,344,1050,1075]" pageId="31" pageNumber="132">Life history.</emphasis>
Little is known about the life history of
<taxonomicName id="4C3CCEE32C62144DFC98FBA0FC9A355D" box="[798,889,1051,1074]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="species" species="nana">
<collectingCountry id="F32BF5F02C62144DFC98FBA0FCD1355D" box="[798,818,1051,1074]" name="Iceland" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFC98FBA0FCD1355D" box="[798,818,1051,1074]" italics="true" pageId="31" pageNumber="132">O</emphasis>
</collectingCountry>
.
<emphasis id="B94869722C62144DFCC7FBA0FC9A355D" box="[833,889,1051,1074]" italics="true" pageId="31" pageNumber="132">nana</emphasis>
</taxonomicName>
, but due the close relationship it is likely similar to
<taxonomicName id="4C3CCEE32C62144DFF30FB84FECE3539" box="[182,301,1087,1110]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="species" species="macrus">
<collectingCountry id="F32BF5F02C62144DFF30FB84FF293539" box="[182,202,1087,1110]" name="Iceland" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFF30FB84FF293539" box="[182,202,1087,1110]" italics="true" pageId="31" pageNumber="132">O</emphasis>
</collectingCountry>
.
<emphasis id="B94869722C62144DFF5DFB84FECE3539" box="[219,301,1087,1110]" italics="true" pageId="31" pageNumber="132">macrus</emphasis>
</taxonomicName>
. We have collected form I males in September and October as well as form II males and females throughout the year. We collected one ovigerous female in October that carried 5 large eggs.
</paragraph>
</subSubSection>
<subSubSection id="C326E6EB2C62144DFF41FB3DFB7E3464" pageId="31" pageNumber="132" type="description">
<paragraph id="8B83B5602C62144DFF41FB3DFBA435F1" blockId="31.[151,1436,510,1291]" box="[199,1095,1158,1183]" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFF41FB3DFE7135F0" bold="true" box="[199,402,1158,1183]" pageId="31" pageNumber="132">Snytopic species:</emphasis>
<taxonomicName id="4C3CCEE32C62144DFE1FFB3CFD4935F1" box="[409,682,1158,1182]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="subSpecies" species="meeki" subSpecies="brevis">
<emphasis id="B94869722C62144DFE1FFB3CFD4935F1" box="[409,682,1158,1182]" italics="true" pageId="31" pageNumber="132">Orconectes meeki brevis</emphasis>
</taxonomicName>
and
<taxonomicName id="4C3CCEE32C62144DFD66FB3CFBA335F1" box="[736,1088,1158,1182]" class="Malacostraca" family="Cambaridae" genus="Orconectes" kingdom="Animalia" order="Decapoda" pageId="31" pageNumber="132" phylum="Arthropoda" rank="subSpecies" species="neglectus" subSpecies="neglectus">
<emphasis id="B94869722C62144DFD66FB3CFBA335F1" box="[736,1088,1158,1182]" italics="true" pageId="31" pageNumber="132">Orconectes neglectus neglectus</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8B83B5602C62144DFF41FB11FF4F3588" blockId="31.[151,1436,510,1291]" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFF41FB11FE5F35AC" bold="true" box="[199,444,1194,1219]" pageId="31" pageNumber="132">Conservation status.</emphasis>
AFS: Vulnerable; Heritage Rank: Imperiled (G3); IUCN: Least Concern; ODWC: Tier 1.
</paragraph>
<paragraph id="8B83B5602C62144DFF41FB49FB7E3464" blockId="31.[151,1436,510,1291]" box="[199,1181,1266,1291]" pageId="31" pageNumber="132">
<emphasis id="B94869722C62144DFF41FB49FE263464" bold="true" box="[199,453,1266,1291]" pageId="31" pageNumber="132">Additional resources.</emphasis>
Crandall (1998); Dillman
<emphasis id="B94869722C62144DFD69FB48FCCB3464" box="[751,808,1267,1291]" italics="true" pageId="31" pageNumber="132">et al.</emphasis>
(2010); Taylor &amp; Knouft (2006).
</paragraph>
</subSubSection>
</treatment>
</document>