264 lines
42 KiB
XML
264 lines
42 KiB
XML
<document id="E7AEA58379FAABA5290DC6FC0AF3DEB4" ID-DOI="10.5281/zenodo.205655" ID-GBIF-Dataset="57e150b9-316a-4f41-a9c5-cb73797b2a3c" ID-ISSN="1175-5326" ID-Zenodo-Dep="205655" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460323395572" checkinUser="plazi" docAuthor="Holsinger, John R., Ansell, Lynnette Meador & Shafer, Justin" docDate="2011" docId="03A287C07B23FFA1FF3D9D1DFE8661D5" docLanguage="en" docName="zt02972p021.pdf" docOrigin="Zootaxa 2972" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Stygobromus caecilius Holsinger, sp. n." docType="treatment" docVersion="9" lastPageNumber="6" masterDocId="FF9BFFB87B22FFA4FFAA9A67FF956449" masterDocTitle="Four new species of the subterranean amphipod genus Stygobromus (Amphipoda: Crangonyctidae) from shallow groundwater habitats on the Coastal Plain and eastern margin of the Piedmont in Maryland and Virginia, USA" masterLastPageNumber="21" masterPageNumber="1" pageNumber="2" updateTime="1698257041333" updateUser="plazi">
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<mods:title id="A52849701D365FA351D9EA637FF7B8A9">Four new species of the subterranean amphipod genus Stygobromus (Amphipoda: Crangonyctidae) from shallow groundwater habitats on the Coastal Plain and eastern margin of the Piedmont in Maryland and Virginia, USA</mods:title>
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<mods:name id="F132ECE751B315AD433F84F7E94A87E7" type="personal">
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<mods:namePart id="FB1009D4E668F6F4417C3DD57F4BEEF0">Holsinger, John R.</mods:namePart>
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<mods:namePart id="82D0858BE55E58683940633EFAF69C65">Ansell, Lynnette Meador</mods:namePart>
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<mods:name id="06B17961250D53FD0D4767FD9C4B23A4" type="personal">
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<mods:namePart id="8A833DD53CC8E8EDB9CD5560C99BAC4B">Shafer, Justin</mods:namePart>
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<mods:typeOfResource id="54CE23E8FC5905F6B5DB22A9452BF7EB">text</mods:typeOfResource>
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<mods:title id="351CB2C7618F4AF3C3B2C9F3C106DCC5">Zootaxa</mods:title>
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<mods:part id="F23DE0EA18927AA5D1A67322A21030C1">
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<mods:date id="679DCAD7608046884EBE04011A9C4283">2011</mods:date>
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<mods:detail id="1D5C9C8A2F3653F4440A1ED96D809D6D" type="volume">
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<mods:number id="750472DBE801754AA1A0685AEBF821D5">2972</mods:number>
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<mods:classification id="5BB15B812DFAE30657A141506CEDB162">journal article</mods:classification>
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<mods:identifier id="D5997FDA59983DB4DB3030840CC8522A" type="DOI">10.5281/zenodo.205655</mods:identifier>
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<mods:identifier id="B36ACD9CAE0F24A3904F89AA3C5EC793" type="ISSN">1175-5326</mods:identifier>
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<mods:identifier id="3E418AB0620D5C64375607A08DEA3834" type="Zenodo-Dep">205655</mods:identifier>
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<treatment id="03A287C07B23FFA1FF3D9D1DFE8661D5" ID-DOI="http://doi.org/10.5281/zenodo.6194281" ID-GBIF-Taxon="119402809" ID-Zenodo-Dep="6194281" LSID="urn:lsid:plazi:treatment:03A287C07B23FFA1FF3D9D1DFE8661D5" httpUri="http://treatment.plazi.org/id/03A287C07B23FFA1FF3D9D1DFE8661D5" lastPageId="5" lastPageNumber="6" pageId="1" pageNumber="2">
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<subSubSection id="C311655D7B23FFA5FF3D9D1DFEAD63FF" pageId="1" pageNumber="2" type="nomenclature">
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<paragraph id="8BB436D67B23FFA5FF3D9D1DFDCA63DA" blockId="1.[151,607,1914,1974]" box="[151,607,1914,1939]" pageId="1" pageNumber="2">
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<heading id="D0FC81BA7B23FFA5FF3D9D1DFDCA63DA" bold="true" box="[151,607,1914,1939]" fontSize="10" level="2" pageId="1" pageNumber="2" reason="2">
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<emphasis id="B97FEAC47B23FFA5FF3D9D1DFDCA63DA" bold="true" box="[151,607,1914,1939]" pageId="1" pageNumber="2">
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<taxonomicName id="4C0B4D557B23FFA5FF3D9D1DFD8663DA" ID-CoL="538KR" authority="Holsinger" authorityName="Holsinger" box="[151,531,1914,1939]" class="Malacostraca" family="Crangonyctidae" genus="Stygobromus" kingdom="Animalia" order="Amphipoda" pageId="1" pageNumber="2" phylum="Arthropoda" rank="species" species="caecilius" status="sp. nov.">
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<emphasis id="B97FEAC47B23FFA5FF3D9D1DFE0D63DA" bold="true" box="[151,408,1914,1939]" italics="true" pageId="1" pageNumber="2">Stygobromus caecilius</emphasis>
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Holsinger
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</taxonomicName>
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,
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<taxonomicNameLabel id="A24C57BF7B23FFA5FDB59D1CFDCA63DA" box="[543,607,1915,1939]" pageId="1" pageNumber="2" rank="species">sp. n.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8BB436D67B23FFA5FF3D9DF9FEAD63FF" blockId="1.[151,607,1914,1974]" box="[151,312,1950,1974]" pageId="1" pageNumber="2">
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<figureCitation id="13302A537B23FFA5FF3D9DF9FE9763FF" box="[151,258,1950,1974]" captionStart="FIGURE 2" captionStartId="2.[151,250,1926,1949]" captionTargetBox="[194,1397,574,1861]" captionTargetId="figure@2.[151,1436,553,1905]" captionTargetPageId="2" captionText="FIGURE 2. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b) antenna 1, antenna 2; (c) right mandible; (d) left mandible; (e) lower lip; (f) maxilla 1; (g) maxilliped; (h). Antennae drawn to same scale; other mouthparts to larger scale. Inner face of mandibles enlarged as indicated." httpUri="https://zenodo.org/record/205657/files/figure.png" pageId="1" pageNumber="2">Figures 2</figureCitation>
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,
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<figureCitation id="13302A537B23FFA5FEA49DF9FE8B63FF" box="[270,286,1950,1974]" captionStart="FIGURE 3" captionStartId="3.[151,250,1356,1379]" captionTargetBox="[183,1375,187,1355]" captionTargetId="figure@3.[179,1408,117,1379]" captionTargetPageId="3" captionText="FIGURE 3. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm: (a) gnathopod 1; (b) gnathopod 2." httpUri="https://zenodo.org/record/205658/files/figure.png" pageId="1" pageNumber="2">3</figureCitation>
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,
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<figureCitation id="13302A537B23FFA5FE809DF9FEAD63FF" box="[298,312,1950,1974]" captionStart="FIGURE 4" captionStartId="4.[151,250,1913,1936]" captionTargetBox="[152,1413,211,1912]" captionTargetId="figure@4.[151,1436,147,1922]" captionTargetPageId="4" captionText="FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale." httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="1" pageNumber="2">4</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="C311655D7B20FFA6FF3D9AF0FE4D6576" pageId="2" pageNumber="3" type="materials_examined">
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<paragraph id="8BB436D67B20FFA6FF3D9AF0FE4D6576" blockId="2.[151,1437,151,501]" pageId="2" pageNumber="3">
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<emphasis id="B97FEAC47B20FFA6FF3D9AF0FE1564F9" bold="true" box="[151,384,151,176]" pageId="2" pageNumber="3">Material examined.</emphasis>
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<typeStatus id="54B088747B20FFA6FE2D9AF0FE7A64E6" box="[391,495,151,175]" pageId="2" pageNumber="3" type="holotype">Holotype</typeStatus>
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specimen 2.0 – 2.5 mm (partly dissected) and
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<typeStatus id="54B088747B20FFA6FC519AFFFBCE64F9" box="[1019,1115,152,176]" pageId="2" pageNumber="3" type="paratype">paratype</typeStatus>
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ca. 2.0 mm (completely dissected), Belvedere Seepage Woods,
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<quantity id="4CF39B337B20FFA6FDE89ADBFD1A649D" box="[578,655,188,212]" metricMagnitude="2" metricUnit="m" metricValue="5.0" pageId="2" pageNumber="3" unit="m" value="500.0">500 m</quantity>
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NNE of Belvedere, Cecil County, Maryland, collected by Daniel Boward and, Daniel Feller,
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<date id="FFB510167B20FFA6FE649AB8FDCA64BE" box="[462,607,223,247]" pageId="2" pageNumber="3" value="2009-09-01">1 Sept. 2009</date>
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. The
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<typeStatus id="54B088747B20FFA6FD369AB8FD6B64BE" box="[668,766,223,247]" pageId="2" pageNumber="3" type="holotype">holotype</typeStatus>
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(dissected) is deposited in the National Museum of Natural History, Smithsonian Institution (
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<collectionCode id="ED1AAE137B20FFA6FDA59B63FDF76555" LSID="urn:lsid:biocol.org:col:34871" box="[527,610,260,284]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34871" name="Smithsonian Institution, National Museum of Natural History" pageId="2" pageNumber="3">USNM</collectionCode>
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1154084);
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<typeStatus id="54B088747B20FFA6FD4F9B62FCD06554" box="[741,837,261,285]" pageId="2" pageNumber="3" type="paratype">paratype</typeStatus>
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(fragments) in research collection of J. R. Holsinger at Old Dominion University.
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</paragraph>
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</subSubSection>
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<subSubSection id="C311655D7B20FFA6FF6F9B2CFD3A65BD" pageId="2" pageNumber="3" type="diagnosis">
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<paragraph id="8BB436D67B20FFA6FF6F9B2CFD3A65BD" blockId="2.[151,1437,151,501]" pageId="2" pageNumber="3">
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<emphasis id="B97FEAC47B20FFA6FF6F9B2CFEAA652D" bold="true" box="[197,319,331,356]" pageId="2" pageNumber="3">Diagnosis.</emphasis>
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Tiny, presumably rare species of troglomorphic facies distinguished by low number of spines and/ or setae on most parts of body; absence of spines on palmar margins of gnathopod propodi except at defining angles; bifurcate lateral sternal gills on pleonite 1; reduced number of articles in pleopod flagellae; absence of peduncular process on uropod 1; and narrow, rectangular-shaped telson which is more than
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<date id="FFB510167B20FFA6FB0E9BD0FB536586" box="[1188,1222,439,463]" pageId="2" pageNumber="3">2X</date>
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longer than broad. Largest specimen (male or female), ca. 2.5 mm.
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</paragraph>
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</subSubSection>
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<caption id="DF74665E7B20FFA6FF3D9DE1FB046390" httpUri="https://zenodo.org/record/205657/files/figure.png" pageId="2" pageNumber="3" targetBox="[194,1397,574,1861]" targetPageId="2">
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<paragraph id="8BB436D67B20FFA6FF3D9DE1FB046390" blockId="2.[151,1436,1926,2010]" pageId="2" pageNumber="3">
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<emphasis id="B97FEAC47B20FFA6FF3D9DE1FE8163D5" bold="true" box="[151,276,1926,1949]" pageId="2" pageNumber="3">FIGURE 2.</emphasis>
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<taxonomicName id="4C0B4D557B20FFA6FEB79DE0FD9463D4" box="[285,513,1927,1949]" class="Malacostraca" family="Crangonyctidae" genus="Stygobromus" kingdom="Animalia" order="Amphipoda" pageId="2" pageNumber="3" phylum="Arthropoda" rank="species" species="caecilius" status="sp. nov.">
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<emphasis id="B97FEAC47B20FFA6FEB79DE0FD9463D4" box="[285,513,1927,1949]" italics="true" pageId="2" pageNumber="3">Stygobromus caecilius</emphasis>
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</taxonomicName>
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,
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<emphasis id="B97FEAC47B20FFA6FDBA9DE0FDDE63D5" bold="true" box="[528,587,1927,1948]" pageId="2" pageNumber="3">
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<taxonomicNameLabel id="A24C57BF7B20FFA6FDBA9DE0FDDE63D5" box="[528,587,1927,1948]" pageId="2" pageNumber="3" rank="species">sp. n.</taxonomicNameLabel>
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</emphasis>
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Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0–2.5 mm): (a, b) antenna 1, antenna 2; (c) right mandible; (d) left mandible; (e) lower lip; (f) maxilla 1; (g) maxilliped; (h). Antennae drawn to same scale; other mouthparts to larger scale. Inner face of mandibles enlarged as indicated.
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</paragraph>
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</caption>
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<caption id="DF74665E7B21FFA7FF3D9F2BFDBD61C8" httpUri="https://zenodo.org/record/205658/files/figure.png" pageId="3" pageNumber="4" targetBox="[183,1375,187,1355]" targetPageId="3">
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<paragraph id="8BB436D67B21FFA7FF3D9F2BFDBD61C8" blockId="3.[151,1436,1356,1410]" pageId="3" pageNumber="4">
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<emphasis id="B97FEAC47B21FFA7FF3D9F2BFE81612B" bold="true" box="[151,276,1356,1379]" pageId="3" pageNumber="4">FIGURE 3.</emphasis>
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<taxonomicName id="4C0B4D557B21FFA7FEB79F2AFD94612A" box="[285,513,1357,1379]" class="Malacostraca" family="Crangonyctidae" genus="Stygobromus" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="species" species="caecilius" status="sp. nov.">
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<emphasis id="B97FEAC47B21FFA7FEB79F2AFD94612A" box="[285,513,1357,1379]" italics="true" pageId="3" pageNumber="4">Stygobromus caecilius</emphasis>
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</taxonomicName>
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,
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<emphasis id="B97FEAC47B21FFA7FDBA9F2AFDDE612B" bold="true" box="[528,587,1357,1378]" pageId="3" pageNumber="4">
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<taxonomicNameLabel id="A24C57BF7B21FFA7FDBA9F2AFDDE612B" box="[528,587,1357,1378]" pageId="3" pageNumber="4" rank="species">sp. n.</taxonomicNameLabel>
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</emphasis>
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Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0–2.5 mm: (a) gnathopod 1; (b) gnathopod 2.
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</paragraph>
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</caption>
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<subSubSection id="C311655D7B21FFA1FF6F9FCAFDE6677E" lastPageId="5" lastPageNumber="6" pageId="3" pageNumber="4" type="description">
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<paragraph id="8BB436D67B21FFA7FF6F9FCAFC086367" blockId="3.[151,1436,1453,2018]" pageId="3" pageNumber="4">
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<emphasis id="B97FEAC47B21FFA7FF6F9FCAFEC3618F" bold="true" box="[197,342,1453,1478]" pageId="3" pageNumber="4">Description.</emphasis>
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Antenna 1 (
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<figureCitation id="13302A537B21FFA7FE4B9FC9FDB6618F" box="[481,547,1454,1478]" captionStart="FIGURE 2" captionStartId="2.[151,250,1926,1949]" captionTargetBox="[194,1397,574,1861]" captionTargetId="figure@2.[151,1436,553,1905]" captionTargetPageId="2" captionText="FIGURE 2. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b) antenna 1, antenna 2; (c) right mandible; (d) left mandible; (e) lower lip; (f) maxilla 1; (g) maxilliped; (h). Antennae drawn to same scale; other mouthparts to larger scale. Inner face of mandibles enlarged as indicated." httpUri="https://zenodo.org/record/205657/files/figure.png" pageId="3" pageNumber="4">Fig. 2</figureCitation>
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a) 0.35 – 0.40% length of body, approximately 1.3X longer than antenna 2; primary flagellum with 6 articles, lacking aesthetacs; accessory flagellum little longer than first flagellar article. Antenna 2 (
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<figureCitation id="13302A537B21FFA7FEB19F91FEF56247" box="[283,352,1526,1550]" captionStart="FIGURE 2" captionStartId="2.[151,250,1926,1949]" captionTargetBox="[194,1397,574,1861]" captionTargetId="figure@2.[151,1436,553,1905]" captionTargetPageId="2" captionText="FIGURE 2. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b) antenna 1, antenna 2; (c) right mandible; (d) left mandible; (e) lower lip; (f) maxilla 1; (g) maxilliped; (h). Antennae drawn to same scale; other mouthparts to larger scale. Inner face of mandibles enlarged as indicated." httpUri="https://zenodo.org/record/205657/files/figure.png" pageId="3" pageNumber="4">Fig. 2</figureCitation>
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b): flagellum with 3 articles. Mandibles (
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<figureCitation id="13302A537B21FFA7FC809F91FCEC6247" box="[810,889,1526,1550]" captionStart="FIGURE 2" captionStartId="2.[151,250,1926,1949]" captionTargetBox="[194,1397,574,1861]" captionTargetId="figure@2.[151,1436,553,1905]" captionTargetPageId="2" captionText="FIGURE 2. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b) antenna 1, antenna 2; (c) right mandible; (d) left mandible; (e) lower lip; (f) maxilla 1; (g) maxilliped; (h). Antennae drawn to same scale; other mouthparts to larger scale. Inner face of mandibles enlarged as indicated." httpUri="https://zenodo.org/record/205657/files/figure.png" pageId="3" pageNumber="4">Figs. 2</figureCitation>
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c, d) differing in a few minor ways: spine row of right with 4 lightly plumose spines, that of left with 2 such spines; lacinia mobilis of left reduced to single spine; that of right reduced to single forked spine; incisors 4-dentate; molar of left obsolete, that of right cone-shaped and bearing single seta; article 2 of right palp bearing single, short seta distally and article 3 with 3 E setae; article 3 of left palp with single, short apical seta. Lower lip (
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<figureCitation id="13302A537B21FFA7FD179CE1FC9462D7" box="[701,769,1670,1694]" captionStart="FIGURE 2" captionStartId="2.[151,250,1926,1949]" captionTargetBox="[194,1397,574,1861]" captionTargetId="figure@2.[151,1436,553,1905]" captionTargetPageId="2" captionText="FIGURE 2. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b) antenna 1, antenna 2; (c) right mandible; (d) left mandible; (e) lower lip; (f) maxilla 1; (g) maxilliped; (h). Antennae drawn to same scale; other mouthparts to larger scale. Inner face of mandibles enlarged as indicated." httpUri="https://zenodo.org/record/205657/files/figure.png" pageId="3" pageNumber="4">Fig. 2</figureCitation>
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e): inner lobes vestigial. Maxilla 1 (
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<figureCitation id="13302A537B21FFA7FB219CE1FB5862D7" box="[1163,1229,1670,1694]" captionStart="FIGURE 2" captionStartId="2.[151,250,1926,1949]" captionTargetBox="[194,1397,574,1861]" captionTargetId="figure@2.[151,1436,553,1905]" captionTargetPageId="2" captionText="FIGURE 2. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b) antenna 1, antenna 2; (c) right mandible; (d) left mandible; (e) lower lip; (f) maxilla 1; (g) maxilliped; (h). Antennae drawn to same scale; other mouthparts to larger scale. Inner face of mandibles enlarged as indicated." httpUri="https://zenodo.org/record/205657/files/figure.png" pageId="3" pageNumber="4">Fig. 2</figureCitation>
|
||
f): inner plate with 2 apical plumose setae; outer plate with 6 apical spines (3 notched); palp with 2 apical setae. Maxilla 2 lost in preparation. Maxilliped (
|
||
<figureCitation id="13302A537B21FFA7FED69CA9FE2A62AF" box="[380,447,1742,1766]" captionStart="FIGURE 2" captionStartId="2.[151,250,1926,1949]" captionTargetBox="[194,1397,574,1861]" captionTargetId="figure@2.[151,1436,553,1905]" captionTargetPageId="2" captionText="FIGURE 2. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b) antenna 1, antenna 2; (c) right mandible; (d) left mandible; (e) lower lip; (f) maxilla 1; (g) maxilliped; (h). Antennae drawn to same scale; other mouthparts to larger scale. Inner face of mandibles enlarged as indicated." httpUri="https://zenodo.org/record/205657/files/figure.png" pageId="3" pageNumber="4">
|
||
Fig.
|
||
<quantity id="4CF39B337B21FFA7FE059CA9FE2A62AF" box="[431,447,1742,1766]" metricMagnitude="-3" metricUnit="kg" metricValue="2.0" pageId="3" pageNumber="4" unit="g" value="2.0">2</quantity>
|
||
</figureCitation>
|
||
g): inner plate with 3 apical spines; outer plate with 4 apical spines; palp article 2 broader and longer than article 1, inner margin with 3 relatively long setae; palp articles 3 and 4 much shorter, with fewer setae; article 4 (dactyl) with prominent terminal nail and 3 or 4 setae.
|
||
</paragraph>
|
||
<paragraph id="8BB436D67B21FFA1FF6F9D5DFB336555" blockId="3.[151,1436,1453,2018]" lastBlockId="5.[151,1437,151,1436]" lastPageId="5" lastPageNumber="6" pageId="3" pageNumber="4">
|
||
Gnathopod 1 (
|
||
<figureCitation id="13302A537B21FFA7FECE9D5DFE32631B" box="[356,423,1850,1874]" captionStart="FIGURE 3" captionStartId="3.[151,250,1356,1379]" captionTargetBox="[183,1375,187,1355]" captionTargetId="figure@3.[179,1408,117,1379]" captionTargetPageId="3" captionText="FIGURE 3. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm: (a) gnathopod 1; (b) gnathopod 2." httpUri="https://zenodo.org/record/205658/files/figure.png" pageId="3" pageNumber="4">Fig. 3</figureCitation>
|
||
a): propodus approximately 30% larger than propodus of gnathopod 2, palm nearly straight and finely serrate, approximately equal in length to posterior margin, bearing only 2 spine teeth and 2 setae on opposite sides; dactyl nail approximately 20% length of dactyl; posterior margin with single longish seta; carpus about 75% length of propodus, bearing 3 long setae on ventral margin; coxa subrounded, broader than deep, with 2 setae on rounded margin. Gnathopod 2 (
|
||
<figureCitation id="13302A537B21FFA7FDF69DADFD0A63AB" box="[604,671,1994,2018]" captionStart="FIGURE 3" captionStartId="3.[151,250,1356,1379]" captionTargetBox="[183,1375,187,1355]" captionTargetId="figure@3.[179,1408,117,1379]" captionTargetPageId="3" captionText="FIGURE 3. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm: (a) gnathopod 1; (b) gnathopod 2." httpUri="https://zenodo.org/record/205658/files/figure.png" pageId="3" pageNumber="4">Fig. 3</figureCitation>
|
||
b): propodus smaller than that of gnathopod 1, palm straight, finely serrate, approximately equal in length to posterior margin, bearing only 2 very small, distally-bifid spines near defining angle corner and several longish setae nearby; posterior margin with single, longish seta; dactyl nail approximately 40% length of dactyl. Posterior margin of carpus of gnathopod 2 strongly lobed, with 3 or 4 longish setae but lacking rasellate setae. Coxa of gnathopod 2 broadly rounded, bearing 2 long setae.
|
||
</paragraph>
|
||
<caption id="DF74665E7B26FFA0FF3D9D1EFDB063BA" httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="4" pageNumber="5" targetBox="[152,1413,211,1912]" targetPageId="4">
|
||
<paragraph id="8BB436D67B26FFA0FF3D9D1EFDB063BA" blockId="4.[151,1436,1913,2035]" pageId="4" pageNumber="5">
|
||
<emphasis id="B97FEAC47B26FFA0FF3D9D1EFE8163C6" bold="true" box="[151,276,1913,1936]" pageId="4" pageNumber="5">FIGURE 4.</emphasis>
|
||
<taxonomicName id="4C0B4D557B26FFA0FEB69D1EFD9563C6" box="[284,512,1913,1935]" class="Malacostraca" family="Crangonyctidae" genus="Stygobromus" kingdom="Animalia" order="Amphipoda" pageId="4" pageNumber="5" phylum="Arthropoda" rank="species" species="caecilius" status="sp. nov.">
|
||
<emphasis id="B97FEAC47B26FFA0FEB69D1EFD9563C6" box="[284,512,1913,1935]" italics="true" pageId="4" pageNumber="5">Stygobromus caecilius</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<emphasis id="B97FEAC47B26FFA0FDA49D1DFDDD63C6" bold="true" box="[526,584,1914,1935]" pageId="4" pageNumber="5">
|
||
<taxonomicNameLabel id="A24C57BF7B26FFA0FDA49D1DFDDD63C6" box="[526,584,1914,1935]" pageId="4" pageNumber="5" rank="species">sp. n.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0–2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BB436D67B27FFA1FF6F9B40FAE5665E" blockId="5.[151,1437,151,1436]" pageId="5" pageNumber="6">
|
||
Pereopods 3 and 4 (
|
||
<figureCitation id="13302A537B27FFA1FE1A9B40FD976576" box="[432,514,295,319]" captionStart="FIGURE 4" captionStartId="4.[151,250,1913,1936]" captionTargetBox="[152,1413,211,1912]" captionTargetId="figure@4.[151,1436,147,1922]" captionTargetPageId="4" captionText="FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale." httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="5" pageNumber="6">Figs. 4</figureCitation>
|
||
a,b) subequal, approximately equal in length to pereopod 5; coxae subquadrate, approximately equal in size, anterior margins convex, posterior margins straight, ventral margins with 2 short setae each. Pereopods 5–7 (
|
||
<figureCitation id="13302A537B27FFA1FE219B08FE4F65CE" box="[395,474,367,391]" captionStart="FIGURE 4" captionStartId="4.[151,250,1913,1936]" captionTargetBox="[152,1413,211,1912]" captionTargetId="figure@4.[151,1436,147,1922]" captionTargetPageId="4" captionText="FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale." httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="5" pageNumber="6">Figs. 4</figureCitation>
|
||
c,d,e): 6 slightly longer than 5 but shorter than 7; basis of 5 approximately subquadrate with prominent distoposterior lobe, those of 6 and 7 longer than broad, with smaller distoposterior lobes, posterior margins generally straight; dactyls relatively long, approximately 50% length of corresponding propodi. Coxal gill on pereopod 5 relatively large and subovate (
|
||
<figureCitation id="13302A537B27FFA1FD379BBBFD7665BD" box="[669,739,476,500]" captionStart="FIGURE 4" captionStartId="4.[151,250,1913,1936]" captionTargetBox="[152,1413,211,1912]" captionTargetId="figure@4.[151,1436,147,1922]" captionTargetPageId="4" captionText="FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale." httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="5" pageNumber="6">Fig. 4</figureCitation>
|
||
c); not apparent on pereopods 6 and 7. Paired median sternal gills (processes) present on pereonites 6 and 7 (
|
||
<figureCitation id="13302A537B27FFA1FD009B98FD67665E" box="[682,754,511,535]" captionStart="FIGURE 4" captionStartId="4.[151,250,1913,1936]" captionTargetBox="[152,1413,211,1912]" captionTargetId="figure@4.[151,1436,147,1922]" captionTargetPageId="4" captionText="FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale." httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="5" pageNumber="6">Figs.4</figureCitation>
|
||
d, e); 1 pair bifurcate sternal gills on pereonite 1 (
|
||
<figureCitation id="13302A537B27FFA1FAB19B98FACD665E" box="[1307,1368,511,535]" captionStart="FIGURE 4" captionStartId="4.[151,250,1913,1936]" captionTargetBox="[152,1413,211,1912]" captionTargetId="figure@4.[151,1436,147,1922]" captionTargetPageId="4" captionText="FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale." httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="5" pageNumber="6">Fig.4</figureCitation>
|
||
f).
|
||
</paragraph>
|
||
<paragraph id="8BB436D67B27FFA1FF6F9843FDE6677E" blockId="5.[151,1437,151,1436]" pageId="5" pageNumber="6">
|
||
Pleonal plates 1,2,3 (
|
||
<figureCitation id="13302A537B27FFA1FE049843FE666675" box="[430,499,548,572]" captionStart="FIGURE 4" captionStartId="4.[151,250,1913,1936]" captionTargetBox="[152,1413,211,1912]" captionTargetId="figure@4.[151,1436,147,1922]" captionTargetPageId="4" captionText="FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale." httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="5" pageNumber="6">
|
||
Fig.
|
||
<quantity id="4CF39B337B27FFA1FE499843FE666675" box="[483,499,548,572]" metricMagnitude="-3" metricUnit="kg" metricValue="4.0" pageId="5" pageNumber="6" unit="g" value="4.0">4</quantity>
|
||
</figureCitation>
|
||
g): posterior margins nearly straight, each with single seta; posterior corners distinct in plates 2 and 3, rounded in plate 1; ventral margins lacking setae or spines. Pleopods (
|
||
<figureCitation id="13302A537B27FFA1FBD99820FB236616" box="[1139,1206,583,607]" captionStart="FIGURE 4" captionStartId="4.[151,250,1913,1936]" captionTargetBox="[152,1413,211,1912]" captionTargetId="figure@4.[151,1436,147,1922]" captionTargetPageId="4" captionText="FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale." httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="5" pageNumber="6">Fig. 4</figureCitation>
|
||
h) biramous, articles bearing long plumose setae. Uropod 1 (
|
||
<figureCitation id="13302A537B27FFA1FDFF980BFD0066CD" box="[597,661,620,644]" captionStart="FIGURE 4" captionStartId="4.[151,250,1913,1936]" captionTargetBox="[152,1413,211,1912]" captionTargetId="figure@4.[151,1436,147,1922]" captionTargetPageId="4" captionText="FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale." httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="5" pageNumber="6">
|
||
Fig.
|
||
<date id="FFB510167B27FFA1FD2F980BFD0066CD" box="[645,661,620,644]" pageId="5" pageNumber="6">4</date>
|
||
</figureCitation>
|
||
i): inner ramus slightly longer than outer ramus, about 75% length of peduncle, armed with 6 spines of unequal length, outer ramus with 4 apical spines; peduncle with 3 spines. Uropod 2 (
|
||
<figureCitation id="13302A537B27FFA1FF1F98D3FF666685" box="[181,243,692,716]" captionStart="FIGURE 4" captionStartId="4.[151,250,1913,1936]" captionTargetBox="[152,1413,211,1912]" captionTargetId="figure@4.[151,1436,147,1922]" captionTargetPageId="4" captionText="FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale." httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="5" pageNumber="6">Fig.4</figureCitation>
|
||
j): inner ramus longer than outer ramus, subequal in length to peduncle, armed with 5 apical spines; outer ramus with 3 apical spines; peduncle with 2 spines. Uropod 3 (
|
||
<figureCitation id="13302A537B27FFA1FCFA98B0FC0166A6" box="[848,916,727,751]" captionStart="FIGURE 4" captionStartId="4.[151,250,1913,1936]" captionTargetBox="[152,1413,211,1912]" captionTargetId="figure@4.[151,1436,147,1922]" captionTargetPageId="4" captionText="FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale." httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="5" pageNumber="6">Fig. 4</figureCitation>
|
||
k): ramus approximately 80% length of peduncle, armed with 2 apical spines. Telson (
|
||
<figureCitation id="13302A537B27FFA1FDFE989BFD02675D" box="[596,663,764,788]" captionStart="FIGURE 4" captionStartId="4.[151,250,1913,1936]" captionTargetBox="[152,1413,211,1912]" captionTargetId="figure@4.[151,1436,147,1922]" captionTargetPageId="4" captionText="FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0 – 2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale." httpUri="https://zenodo.org/record/205659/files/figure.png" pageId="5" pageNumber="6">Fig. 4</figureCitation>
|
||
l) narrow, more than
|
||
<date id="FFB510167B27FFA1FCD5989BFC34675D" box="[895,929,764,788]" pageId="5" pageNumber="6">2X</date>
|
||
longer than broad, bearing 2 lateral setae and armed with 4 relatively long apical spines.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C311655D7B27FFA1FF6F9923FAA36715" box="[197,1334,835,860]" pageId="5" pageNumber="6" type="materials_examined">
|
||
<paragraph id="8BB436D67B27FFA1FF6F9923FAA36715" blockId="5.[151,1437,151,1436]" box="[197,1334,835,860]" pageId="5" pageNumber="6">
|
||
<emphasis id="B97FEAC47B27FFA1FF6F9923FEF66715" bold="true" box="[197,355,835,860]" pageId="5" pageNumber="6">
|
||
<typeStatus id="54B088747B27FFA1FF6F9923FE956715" box="[197,256,836,860]" pageId="5" pageNumber="6">Type</typeStatus>
|
||
locality.
|
||
</emphasis>
|
||
Belvedere Seepage Woods,
|
||
<quantity id="4CF39B337B27FFA1FD089923FD7C6715" box="[674,745,836,860]" metricMagnitude="2" metricUnit="m" metricValue="5.0" pageId="5" pageNumber="6" unit="m" value="500.0">500 m</quantity>
|
||
NNE of Belvedere, Cecil County, Maryland (
|
||
<figureCitation id="13302A537B27FFA1FB469923FABC6715" box="[1260,1321,836,860]" captionStart="FIGURE 1" captionStartId="1.[151,250,1587,1610]" captionTargetBox="[177,1415,618,1586]" captionTargetId="figure@1.[151,1436,597,1590]" captionTargetPageId="1" captionText="FIGURE 1. Distribution of four new species of Stygobromus from the Coastal Plain and eastern Piedmont in Maryland and Virginia, United States. The restricted distributions of S. caecilius, S. felleri and S. paxillus. are indicated by single symbols. Stygobromus foliatus is more widely distributed and recorded from multiple locations on opposite sides of the Potomac River in Charles and S. Mary’s counties in Maryland, and Caroline, Westmoreland and King & Queen counties in Virginia. Several closely spaced localities in Caroline County are indicated by a single symbol. The curved line through MD and VA marks the approximate boundary between the Coastal Plain to the east and the Piedmont to the west." httpUri="https://zenodo.org/record/205656/files/figure.png" pageId="5" pageNumber="6">Fig.1</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C311655D7B27FFA1FF6F990FFE3967ED" pageId="5" pageNumber="6" type="etymology">
|
||
<paragraph id="8BB436D67B27FFA1FF6F990FFE3967ED" blockId="5.[151,1437,151,1436]" pageId="5" pageNumber="6">
|
||
<emphasis id="B97FEAC47B27FFA1FF6F990FFEDE67C9" bold="true" box="[197,331,872,896]" pageId="5" pageNumber="6">Etymology.</emphasis>
|
||
The epithet
|
||
<taxonomicName id="4C0B4D557B27FFA1FE4A990FFDD167C9" box="[480,580,872,896]" class="Malacostraca" family="Crangonyctidae" genus="Stygobromus" kingdom="Animalia" order="Amphipoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="species" species="caecilius">
|
||
<emphasis id="B97FEAC47B27FFA1FE4A990FFDD167C9" box="[480,580,872,896]" italics="true" pageId="5" pageNumber="6">caecilius</emphasis>
|
||
</taxonomicName>
|
||
is a Latin form of
|
||
<emphasis id="B97FEAC47B27FFA1FC8C990FFCF467C9" box="[806,865,872,896]" italics="true" pageId="5" pageNumber="6">Cecil</emphasis>
|
||
and is based on the occurrence of this species in Cecil County, Maryland.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C311655D7B27FFA1FF6F99C8FC336035" pageId="5" pageNumber="6" type="distribution">
|
||
<paragraph id="8BB436D67B27FFA1FF6F99C8FC336035" blockId="5.[151,1437,151,1436]" pageId="5" pageNumber="6">
|
||
<emphasis id="B97FEAC47B27FFA1FF6F99C8FE666781" bold="true" box="[197,499,943,968]" pageId="5" pageNumber="6">Distribution and ecology.</emphasis>
|
||
This tiny, rare species is known to date from groundwater seeps apparently developed in relatively recent Coastal Plain sediments. However, these sediments are in contact with and probably overlay to some extent much older metamorphic rocks of Paleozoic age. This habitat may be similar to the one occupied by
|
||
<taxonomicName id="4C0B4D557B27FFA1FE8C9E7BFD7F607D" authority="Holsinger (2009)" authorityName="Holsinger" authorityYear="2009" box="[294,746,1052,1076]" class="Malacostraca" family="Crangonyctidae" genus="Stygobromus" kingdom="Animalia" order="Amphipoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="species" species="sextarius">
|
||
<emphasis id="B97FEAC47B27FFA1FE8C9E7BFDB7607D" box="[294,546,1052,1076]" italics="true" pageId="5" pageNumber="6">Stygobromus sextarius</emphasis>
|
||
<bibRefCitation id="EF9A4B277B27FFA1FD809E7BFD7F607D" author="Holsinger" box="[554,746,1052,1076]" pageId="5" pageNumber="6" refString="Holsinger, J. R. (2009) Three new species of the subterranean amphipod crustacean genus Stygobromus (Crangonyctidae) from the District of Columbia, Maryland, and Virginia. In Roble, S. M. & Mitchell, J. C. (Eds.), A lifetime of contributions to Myriapodology and the Natural History of Virginia: a festschrift in honor of Richard L. Hoffman's 80 th birthday. Virginia Museum of Natural History, Martinsville, pp. 261 - 276." type="book chapter" year="2009">Holsinger (2009)</bibRefCitation>
|
||
</taxonomicName>
|
||
approximately
|
||
<quantity id="4CF39B337B27FFA1FC309E7BFC7A607D" box="[922,1007,1052,1076]" metricMagnitude="5" metricUnit="m" metricValue="1.2" pageId="5" pageNumber="6" unit="km" value="120.0">120 km</quantity>
|
||
to the southwest in and around Washington, D.C. Although a precise source for the water feeding the local groundwater seeps cannot be determined, it appears to be overflow and/or percolation from underlying sediments.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C311655D7B27FFA1FF6F9EEFFE8661D5" pageId="5" pageNumber="6" type="discussion">
|
||
<paragraph id="8BB436D67B27FFA1FF6F9EEFFE8661D5" blockId="5.[151,1437,151,1436]" pageId="5" pageNumber="6">
|
||
<emphasis id="B97FEAC47B27FFA1FF6F9EEFFEAC60E9" bold="true" box="[197,313,1160,1184]" pageId="5" pageNumber="6">Remarks.</emphasis>
|
||
It may be that the specimens at hand are not sexually mature, although they do not appear to be juveniles of any known species of
|
||
<emphasis id="B97FEAC47B27FFA1FDB09ECBFD27608D" box="[538,690,1196,1220]" italics="true" pageId="5" pageNumber="6">
|
||
<taxonomicName id="4C0B4D557B27FFA1FDB09ECBFD3B608D" box="[538,686,1196,1220]" class="Malacostraca" family="Crangonyctidae" genus="Stygobromus" kingdom="Animalia" order="Amphipoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="genus">Stygobromus</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
However, it should be noted that Feller (in litt.) collected
|
||
<specimenCount id="9D0DFD5F7B27FFA1FA949ECBFF4F60A1" pageId="5" pageNumber="6" type="generic">27 specimens</specimenCount>
|
||
of the common, widespread stygobiotic amphipod
|
||
<taxonomicName id="4C0B4D557B27FFA1FCB69EB7FC6360A1" box="[796,1014,1232,1256]" class="Malacostraca" family="Crangonyctidae" genus="Stygobromus" kingdom="Animalia" order="Amphipoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="species" sensu="lato" species="tenuis">
|
||
<emphasis id="B97FEAC47B27FFA1FCB69EB7FC6360A1" box="[796,1014,1232,1256]" italics="true" pageId="5" pageNumber="6">Stygobromus tenuis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A24C57BF7B27FFA1FC549EB6FBAE60A1" box="[1022,1083,1232,1256]" pageId="5" pageNumber="6" sensu="lato">s. lat.</taxonomicNameLabel>
|
||
(see
|
||
<bibRefCitation id="EF9A4B277B27FFA1FBDC9EB7FAB060A1" author="Holsinger" box="[1142,1317,1232,1256]" pageId="5" pageNumber="6" refString="Holsinger, J. R. (1978) Systematics of the subterranean amphipod genus Stygobromus (Crangonyctidae). Part II: Species of the eastern United States. Smithsonian Contributions to Zoology, 266, 1 - 144." type="journal article" year="1978">Holsinger 1978</bibRefCitation>
|
||
) from this locality on
|
||
<date id="FFB510167B27FFA1FEBE9E93FE216145" box="[276,436,1268,1292]" pageId="5" pageNumber="6" value="2010-04-15">15 April 2010</date>
|
||
. However, these specimens are approximately 4.0 mm in length and are obvious juveniles of the relatively common, wide spread
|
||
<taxonomicName id="4C0B4D557B27FFA1FDFA9F7FFCBE6179" box="[592,811,1304,1328]" class="Malacostraca" family="Crangonyctidae" genus="Stygobromus" kingdom="Animalia" order="Amphipoda" pageId="5" pageNumber="6" phylum="Arthropoda" rank="species" sensu="lato" species="tenuis">
|
||
<emphasis id="B97FEAC47B27FFA1FDFA9F7FFCBE6179" box="[592,811,1304,1328]" italics="true" pageId="5" pageNumber="6">Stygobromus tenuis</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A24C57BF7B27FFA1FC989F7EFCFA6179" box="[818,879,1304,1328]" pageId="5" pageNumber="6" sensu="lato">s. lat.</taxonomicNameLabel>
|
||
They are clearly not larger specimens of the new species described above. Despite the possible immaturity of the specimens of the new species described here, it seems best to document its occurrence. Hopefully, future collecting will result in obtaining fully sexually mature specimens.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |