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<mods:title id="C58B850C8F6F806BDEE1E4D69C7061B2">New and little known Isotomidae (Collembola) from the shore of Lake Baikal and saline lakes of continental Asia</mods:title>
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<mods:namePart id="7A157856D06B35007C03915E0852AD86">Potapov, Mikhail</mods:namePart>
<mods:affiliation id="0E1E535D4E482D2D5D90FDCFEFE3E4F3">Senckenberg Museum of Natural History Goerlitz, Am Museum 1, 02826 Goerlitz, Germany &amp; Moscow Pedagogical State University, Moscow, 129164, Kibalchicha St. 6 b. 5, Russia</mods:affiliation>
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<mods:namePart id="99DF86A23FB02DEE273EDF99017EB6E9">Huang, Cheng-Wang</mods:namePart>
<mods:affiliation id="2534F0B5859784838FCA1D7906F0FFA3">Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China</mods:affiliation>
<mods:nameIdentifier id="6BEF3C410B1280AF0655D1B8B6037AB8" type="email">cwhuang@cemps.ac.cn</mods:nameIdentifier>
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<mods:namePart id="8F2C77A50A51C61E6E479F7CB5464B49">Gulgenova, Ayuna</mods:namePart>
<mods:affiliation id="31D13A54E258AB19E6CC5D571A5E710A">Banzarov Buryat State University, Ulan-Ude, 670000, Smolina St. 24 a, Russia</mods:affiliation>
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<mods:namePart id="DF9658713D092C32BED935FA42FD8699">Luan, Yun-Xia</mods:namePart>
<mods:affiliation id="24DD7162ABD301F467F5BD4B5AA469EA">Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, 510631, China</mods:affiliation>
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<treatment id="EF0EAB43F49459049F98792600800CEA" ID-GBIF-Taxon="164248485" LSID="urn:lsid:zoobank.org:act:01C359C5-F519-4B0A-9B06-8445933FD6E0" httpUri="http://treatment.plazi.org/id/EF0EAB43F49459049F98792600800CEA" lastPageNumber="1" pageId="0" pageNumber="1" scope_class="Collembola" scope_family="Isotomidae">
<subSubSection id="2BBA785283B7EC4490504B7CB615A153" pageId="0" pageNumber="1" type="nomenclature">
<paragraph id="969E98FBE6DDC2BB397E4CF1AF572F5D" pageId="0" pageNumber="1">
<taxonomicName id="8FC7EEE8BD788195C42920F044D81B83" LSID="EF0EAB43-F494-5904-9F98-792600800CEA" authority="Potapov, Huang &amp; Gulgenova" authorityName="Potapov, Huang &amp; Gulgenova" authorityYear="2020" family="Isotomidae" genus="Ephemerotoma" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Ephemerotoma buryatica" order="Collembola" pageId="0" pageNumber="1" rank="species" species="buryatica" status="sp. nov.">Ephemerotoma buryatica Potapov, Huang &amp; Gulgenova</taxonomicName>
<taxonomicNameLabel id="AA535202B927461AF9A7C126CC4B171A" pageId="0" pageNumber="1">sp. nov.</taxonomicNameLabel>
<figureCitation id="4C492F5693292D8C23F304BEE32526E2" captionStart="Figures 1926" captionStartId="F5" captionText="Figures 19 - 26. Ephemerotoma buryatica sp. nov. 19 s-, ms-setae, macrosetae, and p-rows of setae on body tergites 20 chaetotaxy of Abd. III-VI 21 labial papilla E 22 Ant. 3, dorso-lateral view 23 ommatidia and Ant. 1 24 - 26 apex of Ant. 4, lateral (24), dorsal (25), and ventro-lateral (26) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ." figureDoi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1">Figures 19-26</figureCitation>
<figureCitation id="A8C6F9DE26CB308A1B9EA34FCB4A3811" captionStart="Figures 2731" captionStartId="F6" captionText="Figures 27 - 31. Ephemerotoma buryatica sp. nov. 27 appearance 28 furcal area, lateral view 29 furca, posterior view 30 tibiotarsus of Leg 3, outer view 31 ventral side of Th. II and Abd. I and II. Abbreviations: vmc-ventro-medial setae." figureDoi="10.3897/zookeys.935.49363.figures27-31" httpUri="https://binary.pensoft.net/fig/412378" pageId="0" pageNumber="1">, 27-31</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="0C8923A3CCE1C44AF0BA63F0A25800ED" pageId="0" pageNumber="1" type="type material">
<paragraph id="7695F56601DF59176DE9F2A6252C0911" pageId="0" pageNumber="1">Type material.</paragraph>
<paragraph id="D5345C0090989C82DE75A0FF0726E84B" pageId="0" pageNumber="1">
<emphasis id="BD8959BF6C17C6FD3AD6C5C1581C882F" bold="true" italics="true" pageId="0" pageNumber="1">Holotype</emphasis>
: female. Russia, south-western part of Buryat Republic, Gusinoozerskaya Basin, 0.5 km SW from Tokhoy,
<geoCoordinate id="61E85AA96537CE920F93E43CEAC90115" degrees="51.356417" direction="north" orientation="latitude" precision="1" value="51.35642">51.356417°N</geoCoordinate>
,
<geoCoordinate id="E01460B5E4BB8691288E668201AB49E2" degrees="106.558733" direction="east" orientation="longitude" precision="1" value="106.55873">106.558733°E</geoCoordinate>
, 590 m alt., southern shore of
<normalizedToken id="D97EB33A4E3242C2BBA56E4F16A2F603" originalValue="Sulphatnoye">Sul'phatnoye</normalizedToken>
(= Selenginskoye) Lake, grassland with
<taxonomicName id="AA11542C36F38A79E68A0EDED27AF30A" class="Magnoliopsida" family="Fabaceae" genus="Caragana" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Caragana" order="Fabales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="genus">
<emphasis id="DD639669FA37876ACAD0C0065E3DC7CF" italics="true" pageId="0" pageNumber="1">Caragana</emphasis>
</taxonomicName>
sp.,
<taxonomicName id="EE7D805CEE894BB5379C0E1C377DA740" class="Liliopsida" family="Poaceae" genus="Achnatherum" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Achnatherum splendens" order="Poales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="splendens">
<emphasis id="A0F596E80013B3F9D1D96815C8CE1671" italics="true" pageId="0" pageNumber="1">Achnatherum splendens</emphasis>
</taxonomicName>
,
<taxonomicName id="5F17295E6A66443D7C58B75BD79385D3" class="Magnoliopsida" family="Amaranthaceae" genus="Atriplex" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Atriplex" order="Caryophyllales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="genus">
<emphasis id="EEF92B1A1B5E7507D6B582447A9E17B3" italics="true" pageId="0" pageNumber="1">Atriplex</emphasis>
</taxonomicName>
sp.,
<taxonomicName id="EFA9B65C1925CBA3C8C2D82DBB581993" authorityName="Hochstetter" authorityYear="1848" class="Liliopsida" family="Poaceae" genus="Leymus" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Leymus" order="Poales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="genus">
<emphasis id="051787639369D0E9B726378500B74238" italics="true" pageId="0" pageNumber="1">Leymus</emphasis>
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sp., 18.X.2015, coll. M. Potapov and A. Gulgenova. 24 paratypes (sub-adult and adult males and females) from the same place. Holotype and 10 paratypes deposited in MSPU, 4 in BSU, 5 in SMNG, 5 in SEM.
</paragraph>
</subSubSection>
<subSubSection id="FD197CCD2219547FA1A13D294BB84360" pageId="0" pageNumber="1" type="materials_examined">
<paragraph id="EFA61A9E3521620089C3B0E112FD7019" pageId="0" pageNumber="1">Other material.</paragraph>
<paragraph id="42D147B032B13D0B4CCB8EDFC5EC7B4A" pageId="0" pageNumber="1">From the type locality dated 02.V.2015 and 25.VII.2015.</paragraph>
</subSubSection>
<subSubSection id="90897178AEE5F35D1E6B75A1CBD855DB" pageId="0" pageNumber="1" type="description">
<paragraph id="AE99376F83922D39A978D2D628329D1C" pageId="0" pageNumber="1">Description.</paragraph>
<paragraph id="2D23B20C5A522E0AAEDB0499F297958D" pageId="0" pageNumber="1">
Size 0.6-0.9 mm. Body as common for
<taxonomicName id="D63FD624339D7CB0DF492CE38F5BBD58" authorityName="Borner &amp; June" authorityYear="1901" lsidName="" pageId="0" pageNumber="1" rank="subFamily" subFamily="Anurophorinae">Anurophorinae</taxonomicName>
with short furca (Fig.
<figureCitation id="AFC7DF37A21100C589134E2B62080E8E" captionStart="Figures 2731" captionStartId="F6" captionText="Figures 27 - 31. Ephemerotoma buryatica sp. nov. 27 appearance 28 furcal area, lateral view 29 furca, posterior view 30 tibiotarsus of Leg 3, outer view 31 ventral side of Th. II and Abd. I and II. Abbreviations: vmc-ventro-medial setae." figureDoi="10.3897/zookeys.935.49363.figures27-31" httpUri="https://binary.pensoft.net/fig/412378" pageId="0" pageNumber="1">27</figureCitation>
). Pigmentation grey, as in
<taxonomicName id="F1CB5D14CDF89745570DF89A02750BB5" baseAuthorityName="Tullberg" baseAuthorityYear="1871" class="Collembola" family="Isotomidae" genus="Proisotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Proisotoma minuta" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="minuta">
<emphasis id="8E7D0082EBD3D2E38CC52C92B2313859" italics="true" pageId="0" pageNumber="1">Proisotoma minuta</emphasis>
</taxonomicName>
(Tullberg, 1871). Cuticle finely reticulated, size of largest polygons smaller than bases of setae. Ocelli 8+8, G and H smaller (Fig.
<figureCitation id="F33E8B3C62C7CF1E223208B91656230A" captionStart="Figures 1926" captionStartId="F5" captionText="Figures 19 - 26. Ephemerotoma buryatica sp. nov. 19 s-, ms-setae, macrosetae, and p-rows of setae on body tergites 20 chaetotaxy of Abd. III-VI 21 labial papilla E 22 Ant. 3, dorso-lateral view 23 ommatidia and Ant. 1 24 - 26 apex of Ant. 4, lateral (24), dorsal (25), and ventro-lateral (26) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ." figureDoi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1">23</figureCitation>
), all ocelli usually look subequal by pigmentation. PAO with three guard setae along posterior margin, elliptical, not constricted, as long as 0.4-0.6 of Ant.1 width and 0.7-1.1 as long as U3 (Fig.
<figureCitation id="1064416F03540ED304E62FA0A08FC901" captionStart="Figures 1926" captionStartId="F5" captionText="Figures 19 - 26. Ephemerotoma buryatica sp. nov. 19 s-, ms-setae, macrosetae, and p-rows of setae on body tergites 20 chaetotaxy of Abd. III-VI 21 labial papilla E 22 Ant. 3, dorso-lateral view 23 ommatidia and Ant. 1 24 - 26 apex of Ant. 4, lateral (24), dorsal (25), and ventro-lateral (26) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ." figureDoi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1">23</figureCitation>
). Maxillary outer lobe with simple maxillary palp and four sublobal hairs. Labral formula as 2/554. Labium with all papillae (A-E), papillae A-D with normal number of guards (1,4,0,4), E with four guards (Fig.
<figureCitation id="FAC03029F7FE90F8E9BCA19F779F55A2" captionStart="Figures 1926" captionStartId="F5" captionText="Figures 19 - 26. Ephemerotoma buryatica sp. nov. 19 s-, ms-setae, macrosetae, and p-rows of setae on body tergites 20 chaetotaxy of Abd. III-VI 21 labial papilla E 22 Ant. 3, dorso-lateral view 23 ommatidia and Ant. 1 24 - 26 apex of Ant. 4, lateral (24), dorsal (25), and ventro-lateral (26) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ." figureDoi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1">21</figureCitation>
). Main part of labium with three proximal, four basomedian and five basolateral setae. Ventral side of head with 4+4 postlabial setae. Ant.1 with two basal, ventral and dorsal, bms, two ventro-lateral s, and eleven setae, without p-setae (Fig.
<figureCitation id="97701D7F538C3D47107FA420AD35A090" captionStart="Figures 1926" captionStartId="F5" captionText="Figures 19 - 26. Ephemerotoma buryatica sp. nov. 19 s-, ms-setae, macrosetae, and p-rows of setae on body tergites 20 chaetotaxy of Abd. III-VI 21 labial papilla E 22 Ant. 3, dorso-lateral view 23 ommatidia and Ant. 1 24 - 26 apex of Ant. 4, lateral (24), dorsal (25), and ventro-lateral (26) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ." figureDoi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1">23</figureCitation>
). Ant.2 with three bms and one laterodistal s. Ant.3 without bms and with five distal s (including one lateral spine-like), inner s of AO small (Fig.
<figureCitation id="205899E4C57406DC3F9E0D2A45EB24E3" captionStart="Figures 1926" captionStartId="F5" captionText="Figures 19 - 26. Ephemerotoma buryatica sp. nov. 19 s-, ms-setae, macrosetae, and p-rows of setae on body tergites 20 chaetotaxy of Abd. III-VI 21 labial papilla E 22 Ant. 3, dorso-lateral view 23 ommatidia and Ant. 1 24 - 26 apex of Ant. 4, lateral (24), dorsal (25), and ventro-lateral (26) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ." figureDoi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1">22</figureCitation>
). All s-setae on Ant.1-3 very short. S-setae on Ant.4 weakly differentiated, subapical organite small. Apex of Ant.4 with bilobed bulb (Figs
<figureCitation id="06197FF422EC67CDF053972E073D9AB8" captionStart="Figures 1926" captionStartId="F5" captionText="Figures 19 - 26. Ephemerotoma buryatica sp. nov. 19 s-, ms-setae, macrosetae, and p-rows of setae on body tergites 20 chaetotaxy of Abd. III-VI 21 labial papilla E 22 Ant. 3, dorso-lateral view 23 ommatidia and Ant. 1 24 - 26 apex of Ant. 4, lateral (24), dorsal (25), and ventro-lateral (26) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ." figureDoi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1">24-26</figureCitation>
), well visible in dorsal view (Fig.
<figureCitation id="693D3B7E87CD1BDE69BB25913BDC8C7C" captionStart="Figures 1926" captionStartId="F5" captionText="Figures 19 - 26. Ephemerotoma buryatica sp. nov. 19 s-, ms-setae, macrosetae, and p-rows of setae on body tergites 20 chaetotaxy of Abd. III-VI 21 labial papilla E 22 Ant. 3, dorso-lateral view 23 ommatidia and Ant. 1 24 - 26 apex of Ant. 4, lateral (24), dorsal (25), and ventro-lateral (26) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ." figureDoi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1">25</figureCitation>
). In fully grown animals the bulb can look trilobed due to slight secondary division of one of the lobes (Fig.
<figureCitation id="78CEA9500FBF1CA273B3218CDA657D66" captionStart="Figures 1926" captionStartId="F5" captionText="Figures 19 - 26. Ephemerotoma buryatica sp. nov. 19 s-, ms-setae, macrosetae, and p-rows of setae on body tergites 20 chaetotaxy of Abd. III-VI 21 labial papilla E 22 Ant. 3, dorso-lateral view 23 ommatidia and Ant. 1 24 - 26 apex of Ant. 4, lateral (24), dorsal (25), and ventro-lateral (26) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ." figureDoi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1">26</figureCitation>
).
</paragraph>
<caption id="F324247ADCB3A71BB124E57EDB0F7667" doi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1" start="Figures 1926" startId="F5">
<paragraph id="C3EA4F8C19211997BDB7A94E3FACB2D0" pageId="0" pageNumber="1">
<emphasis id="6DB1182DE5F1273B29807B79C0A3B352" bold="true" pageId="0" pageNumber="1">Figures 19-26.</emphasis>
<taxonomicName id="260B6CB7C8EC08FC30CAE800949EE959" authorityName="Potapov, Huang &amp; Gulgenova" authorityYear="2020" class="Collembola" family="Isotomidae" genus="Ephemerotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ephemerotoma buryatica" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="buryatica">
<emphasis id="25AD1B70A199FFC078C7BCF9121724E2" italics="true" pageId="0" pageNumber="1">Ephemerotoma buryatica</emphasis>
</taxonomicName>
sp. nov.
<emphasis id="1FAA209EBAEE5AD4569BE167075FB292" bold="true" pageId="0" pageNumber="1">19</emphasis>
s-, ms-setae, macrosetae, and p-rows of setae on body tergites
<emphasis id="069A3A5981A6B0B79927C8ABE7916F93" bold="true" pageId="0" pageNumber="1">20</emphasis>
chaetotaxy of Abd.III-VI
<emphasis id="FE2BE4D1C7F5FA2A48E02B8BC29E0841" bold="true" pageId="0" pageNumber="1">21</emphasis>
labial papilla E
<emphasis id="A9CA1A1691630229E142516C21E852D7" bold="true" pageId="0" pageNumber="1">22</emphasis>
Ant.3, dorso-lateral view
<emphasis id="DD02E63441EBE416EB6FCFA840FCBF6D" bold="true" pageId="0" pageNumber="1">23</emphasis>
ommatidia and Ant.1
<emphasis id="27FF1DD602AB8F479091D172B196BB12" bold="true" pageId="0" pageNumber="1">24-26</emphasis>
apex of Ant.4, lateral (
<emphasis id="9AC593080EF536C15E12D72708E7BE8A" bold="true" pageId="0" pageNumber="1">24</emphasis>
), dorsal (
<emphasis id="2A35575A34E4032D0D5CEE8238E56DEA" bold="true" pageId="0" pageNumber="1">25</emphasis>
), and ventro-lateral (
<emphasis id="B91F80EA5DB94D57EC086F471592E287" bold="true" pageId="0" pageNumber="1">26</emphasis>
) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ.
</paragraph>
</caption>
<paragraph id="06FD560863BF5FD074A65A4DCB7934DB" pageId="0" pageNumber="1">
Body with smooth and rather short setae. Dorsal axial setal pattern of Th.II-Abd.IV: 7-8,6-7/5,5,5,7-8. Th.I and II without ventral setae, Th.III with 3-5+3-5 (usually 4+4) ventral axial setae (Fig.
<figureCitation id="AD04B98ED4663E7EC38C9305B9E1A064" captionStart="Figures 2731" captionStartId="F6" captionText="Figures 27 - 31. Ephemerotoma buryatica sp. nov. 27 appearance 28 furcal area, lateral view 29 furca, posterior view 30 tibiotarsus of Leg 3, outer view 31 ventral side of Th. II and Abd. I and II. Abbreviations: vmc-ventro-medial setae." figureDoi="10.3897/zookeys.935.49363.figures27-31" httpUri="https://binary.pensoft.net/fig/412378" pageId="0" pageNumber="1">31</figureCitation>
). Abd.II with a pair of mid-ventral setae (Fig.
<figureCitation id="E1B630137ECE3B33D6514DE9386227A7" captionStart="Figures 2731" captionStartId="F6" captionText="Figures 27 - 31. Ephemerotoma buryatica sp. nov. 27 appearance 28 furcal area, lateral view 29 furca, posterior view 30 tibiotarsus of Leg 3, outer view 31 ventral side of Th. II and Abd. I and II. Abbreviations: vmc-ventro-medial setae." figureDoi="10.3897/zookeys.935.49363.figures27-31" httpUri="https://binary.pensoft.net/fig/412378" pageId="0" pageNumber="1">31</figureCitation>
). Macrosetae weakly differentiated, medial macrosetae on Abd.V as long as 0.25-0.35 of tergal midline (Fig.
<figureCitation id="F223DC93D8132E95EFDF38644CE472C5" captionStart="Figures 1926" captionStartId="F5" captionText="Figures 19 - 26. Ephemerotoma buryatica sp. nov. 19 s-, ms-setae, macrosetae, and p-rows of setae on body tergites 20 chaetotaxy of Abd. III-VI 21 labial papilla E 22 Ant. 3, dorso-lateral view 23 ommatidia and Ant. 1 24 - 26 apex of Ant. 4, lateral (24), dorsal (25), and ventro-lateral (26) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ." figureDoi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1">20</figureCitation>
). S-setae on tergites very short (Fig.
<figureCitation id="3F7561404FE804EE0E46112C3C3FBF57" captionStart="Figures 1926" captionStartId="F5" captionText="Figures 19 - 26. Ephemerotoma buryatica sp. nov. 19 s-, ms-setae, macrosetae, and p-rows of setae on body tergites 20 chaetotaxy of Abd. III-VI 21 labial papilla E 22 Ant. 3, dorso-lateral view 23 ommatidia and Ant. 1 24 - 26 apex of Ant. 4, lateral (24), dorsal (25), and ventro-lateral (26) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ." figureDoi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1">20</figureCitation>
). S-formula as 3,3/2,2,2,2,4 (s) and 1,1/1,1,1 (ms). In al-group of Th.II and III front s-seta and ms-seta set close to each other (notated as
<normalizedToken id="D510FAA27C9044BA162FA14D7484C4CF" originalValue="ms+s">'ms+s'</normalizedToken>
in Fig.
<figureCitation id="1688A780A973EEB71ABEA2192CE61C8E" captionStart="Figures 1926" captionStartId="F5" captionText="Figures 19 - 26. Ephemerotoma buryatica sp. nov. 19 s-, ms-setae, macrosetae, and p-rows of setae on body tergites 20 chaetotaxy of Abd. III-VI 21 labial papilla E 22 Ant. 3, dorso-lateral view 23 ommatidia and Ant. 1 24 - 26 apex of Ant. 4, lateral (24), dorsal (25), and ventro-lateral (26) views. Abbreviations: bms-basal micro s-seta, ab-apical bulb, ms-micro s-seta, org-organite, s-s-seta, is, ls, os-inner, lateral, and outer s-setae of antennal organ." figureDoi="10.3897/zookeys.935.49363.figures19-26" httpUri="https://binary.pensoft.net/fig/412377" pageId="0" pageNumber="1">21</figureCitation>
). S-setae on Th.II-Abd.V set in front of p-row of setae (Fig.
<figureCitation id="E69E305C4D6AECEF5F7D4EEBC87ADAB3" captionStart="Figures 15" captionStartId="F1" captionText="Figures 1 - 5. Pseudanurophorus barathrum sp. nov. 1 appearance of dark coloured specimen 2 labrum, maxillary outer lobe and hypostomal setae, lateral view 3 labrum and maxillary outer lobe, fronto-ventral and ventral views 4 labium, ventral view 5 maxillary head. Abbreviations: A, B, C, D, E-papillae of labial palp, H, h 1, h 2 - hypostomal setae, mo, m 1, m 2, p 1, p 2, p 3 - setae of m - and p-row of labrum, mx. ol-maxillary outer lobe, cap., 1 - 6 - capitulum and lamellae 1 - 6 of maxillary head, a 1, b 1, b 2, b 3, b 4, e 7 - labial guards, l. p. - lateral processes. Characters of greater value encircled." figureDoi="10.3897/zookeys.935.49363.figures1-5" httpUri="https://binary.pensoft.net/fig/412373" pageId="0" pageNumber="1">1</figureCitation>
). On Abd.V s-setae arranged in one transverse row, lateral pair very short (Fig.
<figureCitation id="3371B4E453DDA186DA4BB69BE6110988" captionStart="Figures 15" captionStartId="F1" captionText="Figures 1 - 5. Pseudanurophorus barathrum sp. nov. 1 appearance of dark coloured specimen 2 labrum, maxillary outer lobe and hypostomal setae, lateral view 3 labrum and maxillary outer lobe, fronto-ventral and ventral views 4 labium, ventral view 5 maxillary head. Abbreviations: A, B, C, D, E-papillae of labial palp, H, h 1, h 2 - hypostomal setae, mo, m 1, m 2, p 1, p 2, p 3 - setae of m - and p-row of labrum, mx. ol-maxillary outer lobe, cap., 1 - 6 - capitulum and lamellae 1 - 6 of maxillary head, a 1, b 1, b 2, b 3, b 4, e 7 - labial guards, l. p. - lateral processes. Characters of greater value encircled." figureDoi="10.3897/zookeys.935.49363.figures1-5" httpUri="https://binary.pensoft.net/fig/412373" pageId="0" pageNumber="1">2</figureCitation>
).
</paragraph>
<caption id="8858839AABA35EAC906C7D9E89A655FF" doi="10.3897/zookeys.935.49363.figures27-31" httpUri="https://binary.pensoft.net/fig/412378" pageId="0" pageNumber="1" start="Figures 2731" startId="F6">
<paragraph id="1E368C46B54444843604371BCC981D44" pageId="0" pageNumber="1">
<emphasis id="A1EB91AACDE472A9B4FEAFDD2E9551DF" bold="true" pageId="0" pageNumber="1">Figures 27-31.</emphasis>
<taxonomicName id="DFC52A5C69E8D494F5881662DF61B9A8" authorityName="Potapov, Huang &amp; Gulgenova" authorityYear="2020" class="Collembola" family="Isotomidae" genus="Ephemerotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ephemerotoma buryatica" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="buryatica">
<emphasis id="2D351732D8C40E3220A424E482C9466A" italics="true" pageId="0" pageNumber="1">Ephemerotoma buryatica</emphasis>
</taxonomicName>
sp. nov.
<emphasis id="B8F2ED3833D5A8806D78A275F78853E4" bold="true" pageId="0" pageNumber="1">27</emphasis>
appearance
<emphasis id="1C23F64245B43908A5FE31A80F1B50C1" bold="true" pageId="0" pageNumber="1">28</emphasis>
furcal area, lateral view
<emphasis id="7731E5EB64DC6BA1BBD979BA281D8BDE" bold="true" pageId="0" pageNumber="1">29</emphasis>
furca, posterior view
<emphasis id="09E493F934D049FC9DCF6EED2BD3FC7F" bold="true" pageId="0" pageNumber="1">30</emphasis>
tibiotarsus of Leg 3, outer view
<emphasis id="0B0A10D6AD151ECB20AC80A380D5AD0A" bold="true" pageId="0" pageNumber="1">31</emphasis>
ventral side of Th.II and Abd.I and II. Abbreviations: vmc-ventro-medial setae.
</paragraph>
</caption>
<paragraph id="DF9E1C353134F28C8B80AC141063F9F8" pageId="0" pageNumber="1">
Unguis of unusual shape, expanded at the middle, without teeth. Empodial appendage slender, without lamellae. Ti.1 and Ti.2 without additional setae (21), Ti.3 usually with 25 setae. B-row of setae on Ti.1-2 complete (B4 and B5 present). Male spurs (x and B5 on Ti.3) in adult males thin, stick-like. Tibiotarsal tenent setae pointed (Fig.
<figureCitation id="E29F0512D4974B3A5EAD74B45F6E8E1D" captionStart="Figures 2731" captionStartId="F6" captionText="Figures 27 - 31. Ephemerotoma buryatica sp. nov. 27 appearance 28 furcal area, lateral view 29 furca, posterior view 30 tibiotarsus of Leg 3, outer view 31 ventral side of Th. II and Abd. I and II. Abbreviations: vmc-ventro-medial setae." figureDoi="10.3897/zookeys.935.49363.figures27-31" httpUri="https://binary.pensoft.net/fig/412378" pageId="0" pageNumber="1">30</figureCitation>
). Ventral tube with 4+4 distal and four posterior setae arranged in one transversal row (Fig.
<figureCitation id="769BB836134EAAE1556B59A33C0F0782" captionStart="Figures 2731" captionStartId="F6" captionText="Figures 27 - 31. Ephemerotoma buryatica sp. nov. 27 appearance 28 furcal area, lateral view 29 furca, posterior view 30 tibiotarsus of Leg 3, outer view 31 ventral side of Th. II and Abd. I and II. Abbreviations: vmc-ventro-medial setae." figureDoi="10.3897/zookeys.935.49363.figures27-31" httpUri="https://binary.pensoft.net/fig/412378" pageId="0" pageNumber="1">31</figureCitation>
). Tenaculum with 3+3 teeth and one seta. Anterior furcal subcoxae with 10-13 setae, posterior subcoxae with five or six setae (Fig.
<figureCitation id="714668D3921FF9702CA929C71D75A436" captionStart="Figures 2731" captionStartId="F6" captionText="Figures 27 - 31. Ephemerotoma buryatica sp. nov. 27 appearance 28 furcal area, lateral view 29 furca, posterior view 30 tibiotarsus of Leg 3, outer view 31 ventral side of Th. II and Abd. I and II. Abbreviations: vmc-ventro-medial setae." figureDoi="10.3897/zookeys.935.49363.figures27-31" httpUri="https://binary.pensoft.net/fig/412378" pageId="0" pageNumber="1">28</figureCitation>
). Anterior side of manubrium with a pair of distal setae (Fig.
<figureCitation id="F0966CF4A9767E5C6D7C6A6F597012D4" captionStart="Figures 2731" captionStartId="F6" captionText="Figures 27 - 31. Ephemerotoma buryatica sp. nov. 27 appearance 28 furcal area, lateral view 29 furca, posterior view 30 tibiotarsus of Leg 3, outer view 31 ventral side of Th. II and Abd. I and II. Abbreviations: vmc-ventro-medial setae." figureDoi="10.3897/zookeys.935.49363.figures27-31" httpUri="https://binary.pensoft.net/fig/412378" pageId="0" pageNumber="1">28</figureCitation>
), posterior side with 9-10+9-10 setae on main part, lateral edges without setae (Fig.
<figureCitation id="50379DC6980F4EE2547DDEADC01E86A9" captionStart="Figures 2731" captionStartId="F6" captionText="Figures 27 - 31. Ephemerotoma buryatica sp. nov. 27 appearance 28 furcal area, lateral view 29 furca, posterior view 30 tibiotarsus of Leg 3, outer view 31 ventral side of Th. II and Abd. I and II. Abbreviations: vmc-ventro-medial setae." figureDoi="10.3897/zookeys.935.49363.figures27-31" httpUri="https://binary.pensoft.net/fig/412378" pageId="0" pageNumber="1">29</figureCitation>
), laterobasal lobes with 3+3 setae. Dens short, about half as along as Ti.3. Anterior side of dens with three setae in subapical position (Figs
<figureCitation id="4563C9F43B771DFEF2C91FBC03787BAB" captionStart="Figures 2731" captionStartId="F6" captionText="Figures 27 - 31. Ephemerotoma buryatica sp. nov. 27 appearance 28 furcal area, lateral view 29 furca, posterior view 30 tibiotarsus of Leg 3, outer view 31 ventral side of Th. II and Abd. I and II. Abbreviations: vmc-ventro-medial setae." figureDoi="10.3897/zookeys.935.49363.figures27-31" httpUri="https://binary.pensoft.net/fig/412378" pageId="0" pageNumber="1">28</figureCitation>
,
<figureCitation id="1E658EA015BB2B65D088211D8DAB2ABE" captionStart="Figures 2731" captionStartId="F6" captionText="Figures 27 - 31. Ephemerotoma buryatica sp. nov. 27 appearance 28 furcal area, lateral view 29 furca, posterior view 30 tibiotarsus of Leg 3, outer view 31 ventral side of Th. II and Abd. I and II. Abbreviations: vmc-ventro-medial setae." figureDoi="10.3897/zookeys.935.49363.figures27-31" httpUri="https://binary.pensoft.net/fig/412378" pageId="0" pageNumber="1">29</figureCitation>
). Posterior side of dens usually with large subapical hump, more proximal part without clear modifications. Dens with four posterior setae, three in basal half, one subapical. Mucro with two teeth, subapical tooth largest. Ratio of manubrium: dens: mucro = 5.5-6.5: 2.4-3.3: 1.0. Males present.
</paragraph>
</subSubSection>
<subSubSection id="C24839BF38E3A719AC226D4A0E888AED" pageId="0" pageNumber="1" type="affinity">
<paragraph id="54942EC66A0D3F616C96E2191572E087" pageId="0" pageNumber="1">Affinity.</paragraph>
<paragraph id="5005A5056F45B7440091B645829A4762" pageId="0" pageNumber="1">
The species belongs to recently described genus
<taxonomicName id="9499595B651CA69552CEE418B37F10DA" class="Collembola" family="Isotomidae" genus="Ephemerotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ephemerotoma" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis id="829F7D1C047A53C7AF399BA8776D59A5" italics="true" pageId="0" pageNumber="1">Ephemerotoma</emphasis>
</taxonomicName>
Potapov, Kahrarian, Deharveng &amp; Shayanmehr, 2015 due to simple maxillary palp, reduced number (four) of guards on labial papilla E, two prelabral setae, complete set of ms-setae on tergites (11/111), and tergal s-setae on abdomen set in front of p-row.
<taxonomicName id="B137C852CE4D306FC3AE32112FA33B4C" authorityName="Potapov, Huang &amp; Gulgenova" authorityYear="2020" class="Collembola" family="Isotomidae" genus="Ephemerotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ephemerotoma buryatica" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="buryatica">
<emphasis id="45B464A2B6B6011F64AB1823242FAAEA" italics="true" pageId="0" pageNumber="1">Ephemerotoma buryatica</emphasis>
</taxonomicName>
sp. nov. does not share a significant character of the genus, the &quot;two transverse rows&quot; pattern of s-setae on Abd.V. The sexual dimorphism common for the genus
<taxonomicName id="52FEDE3E6525C180B2062B8EA85A5625" class="Collembola" family="Isotomidae" genus="Ephemerotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ephemerotoma" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis id="3E5C95E9AD24C7CF9E29DEB6460F26D3" italics="true" pageId="0" pageNumber="1">Ephemerotoma</emphasis>
</taxonomicName>
[
<taxonomicName id="BAE7D36483A4F5B24031D377C7318B6B" lsidName="E. porcella" pageId="0" pageNumber="1" rank="species" species="porcella">
<emphasis id="F109583583FC66DB333796AF7ACE8C70" italics="true" pageId="0" pageNumber="1">E. porcella</emphasis>
</taxonomicName>
(Ellis, 1976),
<taxonomicName id="928D49853858009C29E4FAA11AA3A92E" lsidName="E. skarzynskii" pageId="0" pageNumber="1" rank="species" species="skarzynskii">
<emphasis id="55BEDF3EE69850E5018C2DF0B33EE0B6" italics="true" pageId="0" pageNumber="1">E. skarzynskii</emphasis>
</taxonomicName>
Potapov, Kahrarian, Deharveng &amp; Shayanmehr, 2015,
<taxonomicName id="4D16A42F82D26827FB4E96C95F83223E" lsidName="E. huadongensis" pageId="0" pageNumber="1" rank="species" species="huadongensis">
<emphasis id="AF82F3191E0C6DD6B1848365BBA6524B" italics="true" pageId="0" pageNumber="1">E. huadongensis</emphasis>
</taxonomicName>
(Chen, 1985)] is not observed in the new species. Small and rather slender body, short furca, shape of unguis, and absence of sexual dimorphism indicate a preference for deeper edaphic habitat than in its congeners.
</paragraph>
<paragraph id="E350B771AE655C6E4C322ACBC5615385" pageId="0" pageNumber="1">
Regarding all genera of the
<taxonomicName id="4F5DA2DC0474012626E4F2B6B6E41FA4" authorityName="Boerner" authorityYear="1901" class="Collembola" family="Isotomidae" genus="Proisotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Proisotoma" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis id="6A2CE532F566C505474CA58AFDFADCCD" italics="true" pageId="0" pageNumber="1">Proisotoma</emphasis>
</taxonomicName>
complex, a peculiarity of the new species is the bilobed apical bulb on Ant.4, which is otherwise known only in
<taxonomicName id="159FA3D0D389E9520275552149389697" authorityName="Christiansen &amp; Bellinger" authorityYear="1980" class="Collembola" family="Isotomidae" genus="Proisotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Proisotoma bulba" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="bulba">
<emphasis id="280384A9DB43142797F404C100D63F4D" italics="true" pageId="0" pageNumber="1">Proisotoma bulba</emphasis>
</taxonomicName>
Christiansen &amp; Bellinger, 1980 (California, U.S.A.). The generic position of
<taxonomicName id="C8B4353F1D2A91E5AF08F311A667194F" lsidName="P. bulba" pageId="0" pageNumber="1" rank="species" species="bulba">
<emphasis id="305CCA2049EE464D991BC32A0734794F" italics="true" pageId="0" pageNumber="1">P. bulba</emphasis>
</taxonomicName>
is obscure because of lack of information on mouth parts and s-setae on body. In other characters,
<taxonomicName id="586B3E2A4F0C28A4C5D1D3C4B8AF9012" lsidName="E. buryatica" pageId="0" pageNumber="1" rank="species" species="buryatica">
<emphasis id="22103972B877B00CAF954693A92E8F2C" italics="true" pageId="0" pageNumber="1">E. buryatica</emphasis>
</taxonomicName>
sp. nov. differs from
<taxonomicName id="F0C92D32581E17D5DC1AB32E12287DD8" lsidName="P. bulba" pageId="0" pageNumber="1" rank="species" species="bulba">
<emphasis id="D9CFBAB749CADD85D1955490A2B2DAAF" italics="true" pageId="0" pageNumber="1">P. bulba</emphasis>
</taxonomicName>
by fewer setae on dens (3/4 vs. 4-5/5-6), shorter dens (dens: mucro = 9: 1 in
<taxonomicName id="7D271E7443D72E70068B0E70E9D7D4EB" lsidName="bulba" pageId="0" pageNumber="1" rank="species" species="bulba">
<emphasis id="FC4EA9CCE6CFDDDD63432721B3A524FA" italics="true" pageId="0" pageNumber="1">bulba</emphasis>
</taxonomicName>
), teeth on tenaculum (3+3 vs. 4+4) and characters of unguis and tibiotarsi (
<taxonomicName id="5453DC8E348068512B5F55119D9CCABC" lsidName="bulba" pageId="0" pageNumber="1" rank="species" species="bulba">
<emphasis id="F24157DF4E26F2917088C477CBC7CE9D" italics="true" pageId="0" pageNumber="1">bulba</emphasis>
</taxonomicName>
has inner tooth on unguis and a clavate tenent hair). In
<taxonomicName id="91F7E52347D525E8CD0F64A853F678CA" authorityName="Boerner" authorityYear="1901" class="Collembola" family="Isotomidae" genus="Proisotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Proisotoma" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis id="9882DD756AD122BC4D7AC1221617AA4B" italics="true" pageId="0" pageNumber="1">Proisotoma</emphasis>
</taxonomicName>
complex, a similar furca is shown, for example, for
<taxonomicName id="280447856720F0203416E712586ECB74" class="Collembola" family="Isotomidae" genus="Weberacantha" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Weberacantha echinodermata" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="echinodermata">
<emphasis id="48890F7D70DFD6296404DB9C8F6A2844" italics="true" pageId="0" pageNumber="1">Weberacantha echinodermata</emphasis>
</taxonomicName>
Potapov, Babenko &amp; Fjellberg, 2006 and
<taxonomicName id="53F21C025E68FF8C7A343AFC9A138A5B" class="Collembola" family="Isotomidae" genus="Scutisotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Scutisotoma robustodens" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="species" species="robustodens">
<emphasis id="BB68686D3AED71920D8FD253AFC2D6A3" italics="true" pageId="0" pageNumber="1">Scutisotoma robustodens</emphasis>
</taxonomicName>
Huang &amp; Potapov, 2012, which belong to other genera. Mouth parts (two prelabral setae, simple maxillary palp and reduced number of e-guards) of
<taxonomicName id="2F86DE0B9023EAED80216E7039CE0E94" lsidName="E. buryatica" pageId="0" pageNumber="1" rank="species" species="buryatica">
<emphasis id="558E1BEC40D388A2291CD0BC822F6864" italics="true" pageId="0" pageNumber="1">E. buryatica</emphasis>
</taxonomicName>
sp. nov. resemble the &quot;
<emphasis id="C23B5910D6F615966AFE6550CEFBDF02" italics="true" pageId="0" pageNumber="1">asiatica</emphasis>
&quot; group of the genus
<taxonomicName id="210F6EEE25BB7E8610463F6489433274" authorityName="Stach" authorityYear="1947" class="Collembola" family="Isotomidae" genus="Subisotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Subisotoma" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis id="7C1B264C4733197AE49EBAE267BBBA7C" italics="true" pageId="0" pageNumber="1">Subisotoma</emphasis>
</taxonomicName>
but several other characters of great value are different (e.g., presence/absence of anterior setae on manubrium).
</paragraph>
</subSubSection>
<subSubSection id="CEBBEE7A455B364E596A667DB03BECF5" pageId="0" pageNumber="1" type="distribution">
<paragraph id="DEB06ABF337C42424913238F3E8604F2" pageId="0" pageNumber="1">Distribution and ecology.</paragraph>
<paragraph id="EEA317FFA1DBE0D5D6623CF220A5F4D8" pageId="0" pageNumber="1">
Known only from one locality in SW Buryatia where it inhabits soil of dry steppe at upper part of a salt-lake catena. The species probably occurs in all seasons since it was recorded in May, July and October in the type locality. It was highly aggregated in October which that suggests a resemblance to the
<normalizedToken id="FDA2A09DE5F8D68DA49B755F13702BD6" originalValue="“ephemeral”">&quot;ephemeral&quot;</normalizedToken>
species of the genus
<taxonomicName id="CDAF0CCD650807975A5B1B4D6AC6F420" class="Collembola" family="Isotomidae" genus="Ephemerotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ephemerotoma" order="Entomobryomorpha" pageId="0" pageNumber="1" phylum="Arthropoda" rank="genus">
<emphasis id="6777574D547438078323EFD51D36826F" italics="true" pageId="0" pageNumber="1">Ephemerotoma</emphasis>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="8B53330E714D3F670376A52BB7730839" pageId="0" pageNumber="1" type="name derivation">
<paragraph id="FB3EB12DFFCB126CE9CCCD811906B47F" pageId="0" pageNumber="1">Name derivation.</paragraph>
<paragraph id="675A723AF2579181FE835D054C302545" pageId="0" pageNumber="1">It is named after the type locality.</paragraph>
</subSubSection>
</treatment>
</document>