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<document id="E137A5A50502F407E734651CEBAF95DC" ID-DOI="10.11646/zootaxa.5437.2.2" ID-ISSN="1175-5326" ID-Zenodo-Dep="10984562" ID-ZooBank="03EAB984-A38F-4C8C-A9A3-06D8318F6353" IM.bibliography_approvedBy="carolina" IM.illustrations_approvedBy="carolina" IM.materialsCitations_approvedBy="carolina" IM.metadata_approvedBy="carolina" IM.tables_approvedBy="carolina" IM.taxonomicNames_approvedBy="carolina" IM.treatments_approvedBy="carolina" checkinTime="1713343128077" checkinUser="plazi" docAuthor="Grismer, L. Lee, Pawangkhanant, Parinya, Bragin, Andrey M., Trofimets, Alexey V., Nazarov, Roman A., Suwannapoom, Chatmongkon &amp; Poyarkov, Nikolay A." docDate="2024" docId="03F287F5FFCCFFA0248EFB21FDA92711" docLanguage="en" docName="zootaxa.5437.2.2.pdf" docOrigin="Zootaxa 5437 (2)" docSource="http://dx.doi.org/10.11646/zootaxa.5437.2.2" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Cyrtodactylus thalang Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov 2024, sp. nov." docType="treatment" docUuid="49B6986E-BD6B-4303-9263-1183DE16A3F7" docUuidSource="ZooBank" docVersion="3" lastPageNumber="216" masterDocId="FFCBFF8DFFDDFFB82419FF93FFBE2120" masterDocTitle="A new species of the Cyrtodactylus brevipalmatus group (Squamata: Gekkonidae) from Phuket Island, Thailand with a discussion of the groups potential biogeography" masterLastPageNumber="222" masterPageNumber="193" pageNumber="210" updateTime="1713465824796" updateUser="carolina" zenodo-license-document="CLOSED">
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<mods:title id="85AC18F63E8C2FB9D32E01E8A94DA164">A new species of the Cyrtodactylus brevipalmatus group (Squamata: Gekkonidae) from Phuket Island, Thailand with a discussion of the groups potential biogeography</mods:title>
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<mods:namePart id="576F3BE18B09E5B8E76175DEA1590568">Grismer, L. Lee</mods:namePart>
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<mods:affiliation id="A668297CE0463916D8947864C4BDAAF3">Herpetology Laboratory, Department of Biology, La Sierra University, 4500 Riverwalk Parkway, Riverside, California 92505, USA. &amp; Department of Herpetology, San Diego Natural History Museum, PO Box 121390, San Diego, California, 92112, USA. &amp; Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia.</mods:affiliation>
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<mods:namePart id="53A3A78D67CFEBC8C0A75ABA2992CF95">Pawangkhanant, Parinya</mods:namePart>
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<mods:affiliation id="9DEDFB9CB3EB5BE8A5F8FD05066E1837">Division of Fishery, School of Agriculture and Natural Resources, University of Phayao, Phayao, Thailand.</mods:affiliation>
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<mods:namePart id="CA4AACED257E43EE0908F1E50D475908">Bragin, Andrey M.</mods:namePart>
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<mods:affiliation id="DB2D1C9A897815142739EF0C21866EC3">Joint Vietnam - Russia Tropical Science and Technology Research Centre, 63 Nguyen Van Huyen Road, Nghia Do, Cau Giay, Hanoi, Vietnam.</mods:affiliation>
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<mods:namePart id="2FAB965B054FE0583DDF27B229EE4106">Trofimets, Alexey V.</mods:namePart>
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<mods:affiliation id="448A84628F4E3629C811D6E5108CB496">Department of Vertebrate Zoology, Lomonosov Moscow State University, Leninskiye Gory, GSP- 1, Moscow 119991, Russia.</mods:affiliation>
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<mods:namePart id="52A8A8D569D1E346F51D9974C3DDB65D">Nazarov, Roman A.</mods:namePart>
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<mods:affiliation id="79C917D56B047DB3F8BFBDECE10B684F">Zoological Museum, Moscow State University, Moscow, 2 Bolshaya Nikitskaya St., Moscow 125009, Russia.</mods:affiliation>
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<mods:namePart id="FAA617C5283017811D6EAAFF6C663859">Suwannapoom, Chatmongkon</mods:namePart>
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<mods:affiliation id="322778409930C4695EA2711A6F3F3F91">Division of Fishery, School of Agriculture and Natural Resources, University of Phayao, Phayao, Thailand.</mods:affiliation>
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<mods:namePart id="DFE4A401ACA5D8A5F99586B22708377B">Poyarkov, Nikolay A.</mods:namePart>
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<mods:affiliation id="B22211563B1842D337C863CCFD561ED9">Joint Vietnam - Russia Tropical Science and Technology Research Centre, 63 Nguyen Van Huyen Road, Nghia Do, Cau Giay, Hanoi, Vietnam. &amp; Department of Vertebrate Zoology, Lomonosov Moscow State University, Leninskiye Gory, GSP- 1, Moscow 119991, Russia.</mods:affiliation>
<mods:nameIdentifier id="9804E2627D3B6495C90FF47E9BC58D42" type="email">poyarkov@gmail.com</mods:nameIdentifier>
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<taxonomicName id="4C5B4D60FFCCFFA9248EFB21FE2825ED" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[151,406,1202,1229]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="17" pageNumber="210" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFCCFFA9248EFB21FE2825ED" bold="true" box="[151,406,1202,1229]" italics="true" pageId="17" pageNumber="210">Cyrtodactylus thalang</emphasis>
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<figureCitation id="13602A66FFCCFFA9248EFB68FEBD2435" box="[151,259,1275,1301]" captionStart-0="FIGURE 4" captionStart-1="FIGURE 5" captionStart-2="FIGURE 6" captionStartId-0="18.[151,250,1562,1586]" captionStartId-1="19.[151,250,1943,1967]" captionStartId-2="21.[151,250,1598,1622]" captionTargetBox-0="[156,1436,186,1538]" captionTargetBox-1="[186,1402,181,1919]" captionTargetBox-2="[165,1422,195,1560]" captionTargetId-0="figure-33@18.[151,1436,181,1538]" captionTargetId-1="figure-19@19.[186,1402,181,1919]" captionTargetId-2="figure-19@21.[151,1435,181,1574]" captionTargetPageId-0="18" captionTargetPageId-1="19" captionTargetPageId-2="21" captionText-0="FIGURE 4. a. MFA of all species of the Cyrtodactylus brevipalmatus group minus C. elok. b. Percent contribution of numeric characters to the first five dimensions accounting for 59.9% of the total variation in the data set. c. Percent contribution of each character type to the first five dimension of the data set. d. Comparative photographs of the species of the brevipalmatus lineage. Cyrtodactylus thalang sp. nov. from Phuket Island, Phuket Province, Thailand, photo by N. Poyarkov: C. cf. brevipalmatus, from Langkawi Island, Kedah State, Malaysia, photo by E.S.H. Quah; and C. brevipalmatus, from Khao Luang, Nakhon Si Thammarat Province, Thailand, photo from Creative Commons Attribution Share Alike, https://creativecommons.org/licenses/ by-sa/4.0/deed.en." captionText-1="FIGURE 5. Adult female holotype of Cyrtodactylus thalang sp. nov. a. Dorsal view of the specimen. b. Lateral view of head. c. Dorsal view of head. d. Ventral view of hind limbs, cloacal, and precloacal region. e. Ventral view of head. f. Ventral view of tail. g. Ventral view of tail. Photos by N. Poyarkov." captionText-2="FIGURE 6. Dorsal and ventral views of the type series of Cyrtodactylus thalang sp. nov. (ZMMU Re-1783617839, females). a. Dorsal view of the specimen. b. Lateral view of head. c. Dorsal view of head. d. Ventral view of hind limbs, cloacal, and precloacal region. e. Ventral view of head. f. Ventral view of tail. g. Ventral view of tail. Photographs by N. A. Poyarkov." figureDoi-0="http://doi.org/10.5281/zenodo.10984574" figureDoi-1="http://doi.org/10.5281/zenodo.10984576" figureDoi-2="http://doi.org/10.5281/zenodo.10984583" httpUri-0="https://zenodo.org/record/10984574/files/figure.png" httpUri-1="https://zenodo.org/record/10984576/files/figure.png" httpUri-2="https://zenodo.org/record/10984583/files/figure.png" pageId="17" pageNumber="210">Figs. 46</figureCitation>
;
<tableCitation id="C6D90358FFCCFFA92517FB68FEDF2435" box="[270,353,1275,1301]" captionStart="TABLE 1" captionStartId="5.[151,239,151,175]" captionTargetBox="[156,1430,223,2024]" captionTargetId="graphics-58@5.[151,1437,216,2027]" captionTargetPageId="5" captionText="TABLE 1. Sex, raw meristic and morphometric, andcategorical, data used in the analyses of specimens in the Cyrtodactylus" pageId="17" pageNumber="210">Table 1</tableCitation>
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.
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Adult female (
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Re-17836; field tag NAP-11179) collected from
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, on the border of
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and
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districts,
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,
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(
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,
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elevation
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a.s.l.
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) on
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, at 19:30 h by
<collectorName id="26AE5335FFCCFFA9256EFA18FD992485" box="[375,551,1419,1445]" pageId="17" pageNumber="210">Poyarkov N. A.</collectorName>
,
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,
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<collectionCode id="ED4AAE26FFCCFFA92770FA18FCC12485" box="[873,895,1419,1445]" country="Canada" lsid="urn:lsid:biocol.org:col:13946" name="Royal British Columbia Museum - Herbarium" pageId="17" pageNumber="210" type="Museum">V</collectionCode>
., and
<collectorName id="26AE5335FFCCFFA927A7FA18FB3B2485" box="[958,1157,1419,1445]" pageId="17" pageNumber="210">Suwannapoom C.</collectorName>
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<materialsCitation id="3B333CBEFFCCFFA924DEFA3CFCFE24E9" box="[199,832,1454,1481]" collectionCode="ZMMU" pageId="17" pageNumber="210" specimenCount="1" typeStatus="paratype">
<emphasis id="B92FEAF1FFCCFFA924DEFA3CFE3324E8" bold="true" box="[199,397,1454,1481]" pageId="17" pageNumber="210">
<typeStatus id="54E08841FFCCFFA924DEFA3CFE8124E9" box="[199,319,1455,1481]" pageId="17" pageNumber="210" type="paratype">Paratypes</typeStatus>
(n=3).
</emphasis>
<collectionCode id="ED4AAE26FFCCFFA9258FFA3CFE5324E9" box="[406,493,1455,1481]" country="Russia" httpUri="http://grbio.org/cool/k3qp-615s" name="Zoological Museum, Moscow Lomonosov State University" pageId="17" pageNumber="210" type="Museum">ZMMU</collectionCode>
Re-17837 (field tag ISS-131)
</materialsCitation>
,
<materialsCitation id="3B333CBEFFCCFFA92754FA3CFB2C24E9" box="[845,1170,1455,1481]" collectionCode="ZMMU" pageId="17" pageNumber="210" specimenCount="1">
<collectionCode id="ED4AAE26FFCCFFA92754FA3CFC1A24E9" box="[845,932,1455,1481]" country="Russia" httpUri="http://grbio.org/cool/k3qp-615s" name="Zoological Museum, Moscow Lomonosov State University" pageId="17" pageNumber="210" type="Museum">ZMMU</collectionCode>
Re-17838 (ISS-132)
</materialsCitation>
, and
<materialsCitation id="3B333CBEFFCCFFA920D6FA3CFECE24CD" collectingDate="2023-01-18" collectionCode="ZMMU" country="Thailand" county="Kathu" elevation="112" latitude="7.934" location="Adult" longLatPrecision="77" longitude="98.323" municipality="Thalang" pageId="17" pageNumber="210" specimenCount="1" specimenCount-adult="3" stateProvince="Phuket" typeStatus="paratype">
<collectionCode id="ED4AAE26FFCCFFA920D6FA3CFA9824E9" box="[1231,1318,1455,1481]" country="Russia" httpUri="http://grbio.org/cool/k3qp-615s" name="Zoological Museum, Moscow Lomonosov State University" pageId="17" pageNumber="210" type="Museum">ZMMU</collectionCode>
Re-17839 (field tag ISS-133),
</materialsCitation>
<materialsCitation id="3B333CBEFFCCFFA9256EFA40FB882731" collectingDate="2023-01-18" collectionCode="ZMMU" collectorName="Pawangkhanant P. &amp; Suwannapoom C. &amp; Naiduangchan M. &amp; Idiiatullina S. S" country="Thailand" county="Kathu" elevation="112" latitude="7.934" location="Adult" longLatPrecision="77" longitude="98.323" municipality="Thalang" pageId="17" pageNumber="210" specimenCount="3" specimenCount-adult="3" stateProvince="Phuket" typeStatus="paratype">
<specimenCount id="9D5DFD6AFFCCFFA9256EFA40FE5024CD" box="[375,494,1491,1517]" count="3" pageId="17" pageNumber="210" type="adult">three adult</specimenCount>
females collected at the same locality as the holotype on
<date id="FFE51023FFCCFFA9206AFA40FA8824CD" box="[1139,1334,1491,1517]" pageId="17" pageNumber="210" value="2023-01-18">
<collectingDate id="EFA1E9CBFFCCFFA9206AFA40FA8824CD" box="[1139,1334,1491,1517]" pageId="17" pageNumber="210" value="2023-01-18">January 18, 2023</collectingDate>
</date>
, at 20:00 h by
<collectorName id="26AE5335FFCCFFA924D6FA64FE232731" box="[207,413,1527,1553]" pageId="17" pageNumber="210">Pawangkhanant P.</collectorName>
,
<collectorName id="26AE5335FFCCFFA925B0FA64FDCF2731" box="[425,625,1527,1553]" pageId="17" pageNumber="210">Suwannapoom C.</collectorName>
,
<collectorName id="26AE5335FFCCFFA92667FA64FCF72731" box="[638,841,1527,1553]" pageId="17" pageNumber="210">Naiduangchan M.</collectorName>
, and
<collectorName id="26AE5335FFCCFFA9279DFA64FB882731" box="[900,1078,1527,1553]" pageId="17" pageNumber="210">Idiiatullina S. S</collectorName>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C3416568FFCCFFA924DEF989FD1926E1" pageId="17" pageNumber="210" type="diagnosis">
<paragraph id="8BE436E3FFCCFFA924DEF989FD1926E1" blockId="17.[151,1437,1347,1985]" pageId="17" pageNumber="210">
<emphasis id="B92FEAF1FFCCFFA924DEF989FE472714" bold="true" box="[199,505,1562,1588]" pageId="17" pageNumber="210">Diagnosis (females only).</emphasis>
<taxonomicName id="4C5B4D60FFCCFFA9261FF988FCBB2715" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[518,773,1563,1589]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="17" pageNumber="210" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFCCFFA9261FF988FCBB2715" box="[518,773,1563,1589]" italics="true" pageId="17" pageNumber="210">Cyrtodactylus thalang</emphasis>
</taxonomicName>
<emphasis id="B92FEAF1FFCCFFA92709F988FCD12715" bold="true" box="[784,879,1563,1589]" pageId="17" pageNumber="210">
<taxonomicNameLabel id="A21C578AFFCCFFA92709F988FCD12715" box="[784,879,1563,1589]" pageId="17" pageNumber="210" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
can be separated from all other species of the
<taxonomicName id="4C5B4D60FFCCFFA9248EF9ACFE882779" box="[151,310,1599,1625]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="17" pageNumber="210" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCCFFA9248EF9ACFE882779" box="[151,310,1599,1625]" italics="true" pageId="17" pageNumber="210">brevipalmatus</emphasis>
</taxonomicName>
group by the combination of having 1012 supralabials, 911 infralabials, 2431 paravertebral tubercles, 16 or 17 rows of longitudinally arranged tubercles, 2834 longitudinal rows of ventrals, 160169 transverse rows of ventrals, 912 expanded subdigital lamellae on the fourth toe, 811 unexpanded subdigital lamellae on the fourth toe, 1723 total subdigital lamellae on the fourth toe; six or seven expanded subdigital lamellae on the fourth finger, 1012 unexpanded subdigital lamellae on the fourth finger, 17 or 18 total subdigital lamellae on the fourth finger; 1315 total number of enlarged femoral scales, 69 enlarged precloacals; enlarged femorals and enlarged precloacals not continuous; proximal femorals smaller than distal femorals; no tubercles on forelimbs; small tubercles on flanks; ventrolateral body fold not denticulate; large dorsolateral caudal tubercles; wide ventrolateral caudal fringe; ventrolateral caudal fringe composed scales of different size; tail square in cross-section; no ventrolateral subcaudal ridge; slightly enlarged unpaired medial subcaudals not posteromedially furrowed; maximum SVL
<quantity id="4CA39B06FFCCFFA92172F810FF7826E1" metricMagnitude="-2" metricUnit="m" metricValue="7.029999999999999" pageId="17" pageNumber="210" unit="mm" value="70.3">70.3 mm</quantity>
; 03 dark transverse body bands (
<tableCitation id="C6D90358FFCCFFA9265DF834FD2826E1" box="[580,662,1959,1985]" captionStart="TABLE 1" captionStartId="5.[151,239,151,175]" captionTargetBox="[156,1430,223,2024]" captionTargetId="graphics-58@5.[151,1437,216,2027]" captionTargetPageId="5" captionText="TABLE 1. Sex, raw meristic and morphometric, andcategorical, data used in the analyses of specimens in the Cyrtodactylus" pageId="17" pageNumber="210">Table 1</tableCitation>
).
</paragraph>
</subSubSection>
<caption id="DF24666BFFCFFFAA248EF989FEEF262A" ID-DOI="http://doi.org/10.5281/zenodo.10984574" ID-Zenodo-Dep="10984574" httpUri="https://zenodo.org/record/10984574/files/figure.png" pageId="18" pageNumber="211" startId="18.[151,250,1562,1586]" targetBox="[156,1436,186,1538]" targetPageId="18" targetType="figure">
<paragraph id="8BE436E3FFCFFFAA248EF989FEEF262A" blockId="18.[151,1437,1562,1802]" pageId="18" pageNumber="211">
<emphasis id="B92FEAF1FFCFFFAA248EF989FE922713" bold="true" box="[151,300,1562,1587]" pageId="18" pageNumber="211">FIGURE 4. a.</emphasis>
MFA of all species of the
<taxonomicName id="4C5B4D60FFCFFFAA2620F989FCE32712" box="[569,861,1562,1586]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="18" pageNumber="211" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCFFFAA2620F989FCE32712" box="[569,861,1562,1586]" italics="true" pageId="18" pageNumber="211">Cyrtodactylus brevipalmatus</emphasis>
</taxonomicName>
group minus
<emphasis id="B92FEAF1FFCFFFAA27F3F988FB872712" box="[1002,1081,1562,1586]" italics="true" pageId="18" pageNumber="211">
<taxonomicName id="4C5B4D60FFCFFFAA27F3F988FB8A2712" authorityName="Dring" authorityYear="1979" box="[1002,1076,1562,1586]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="18" pageNumber="211" phylum="Chordata" rank="species" species="elok">C. elok</taxonomicName>
.
</emphasis>
<emphasis id="B92FEAF1FFCFFFAA2027F988FBEC2713" bold="true" box="[1086,1106,1563,1587]" pageId="18" pageNumber="211">b.</emphasis>
Percent contribution of numeric characters to the first five dimensions accounting for 59.9% of the total variation in the data set.
<emphasis id="B92FEAF1FFCFFFAA207FF9ACFBC62777" bold="true" box="[1126,1144,1599,1623]" pageId="18" pageNumber="211">c.</emphasis>
Percent contribution of each character type to the first five dimension of the data set.
<emphasis id="B92FEAF1FFCFFFAA26DEF9F0FD65275B" bold="true" box="[711,731,1635,1659]" pageId="18" pageNumber="211">d.</emphasis>
Comparative photographs of the species of the
<taxonomicName id="4C5B4D60FFCFFFAA20AEF9F1FAF9275A" box="[1207,1351,1634,1658]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="18" pageNumber="211" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCFFFAA20AEF9F1FAF9275A" box="[1207,1351,1634,1658]" italics="true" pageId="18" pageNumber="211">brevipalmatus</emphasis>
</taxonomicName>
lineage.
<taxonomicName id="4C5B4D60FFCFFFAA248EF915FEC427BE" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[151,378,1670,1694]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="18" pageNumber="211" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFCFFFAA248EF915FEC427BE" box="[151,378,1670,1694]" italics="true" pageId="18" pageNumber="211">Cyrtodactylus thalang</emphasis>
</taxonomicName>
<emphasis id="B92FEAF1FFCFFFAA259AF914FE6B27BF" bold="true" box="[387,469,1671,1695]" pageId="18" pageNumber="211">
<taxonomicNameLabel id="A21C578AFFCFFFAA259AF914FE6B27BF" box="[387,469,1671,1695]" pageId="18" pageNumber="211" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
from Phuket Island, Phuket Province, Thailand, photo by N. Poyarkov:
<taxonomicName id="4C5B4D60FFCFFFAA20DCF914FA2827BE" box="[1221,1430,1670,1694]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" isUncertain="true" kingdom="Animalia" pageId="18" pageNumber="211" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCFFFAA20DCF914FB6227BE" box="[1221,1244,1671,1694]" italics="true" pageId="18" pageNumber="211">C.</emphasis>
cf.
<emphasis id="B92FEAF1FFCFFFAA211FF915FA2827BE" box="[1286,1430,1670,1694]" italics="true" pageId="18" pageNumber="211">brevipalmatus</emphasis>
</taxonomicName>
, from Langkawi Island, Kedah State, Malaysia, photo by E.S.H. Quah; and
<taxonomicName id="4C5B4D60FFCFFFAA27BEF938FBE927E2" box="[935,1111,1706,1730]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="18" pageNumber="211" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCFFFAA27BEF938FBE927E2" box="[935,1111,1706,1730]" italics="true" pageId="18" pageNumber="211">C. brevipalmatus</emphasis>
</taxonomicName>
, from Khao Luang, Nakhon Si Thammarat Province, Thailand, photo from Creative Commons Attribution Share Alike, https://creativecommons.org/licenses/ by-sa/4.0/deed.en.
</paragraph>
</caption>
<caption id="DF24666BFFCEFFAB248EF804FD2326D8" ID-DOI="http://doi.org/10.5281/zenodo.10984576" ID-Zenodo-Dep="10984576" httpUri="https://zenodo.org/record/10984576/files/figure.png" pageId="19" pageNumber="212" startId="19.[151,250,1943,1967]" targetBox="[186,1402,181,1919]" targetPageId="19" targetType="figure">
<paragraph id="8BE436E3FFCEFFAB248EF804FD2326D8" blockId="19.[151,1437,1943,2040]" pageId="19" pageNumber="212">
<emphasis id="B92FEAF1FFCEFFAB248EF804FEAD2690" bold="true" box="[151,275,1943,1968]" pageId="19" pageNumber="212">FIGURE 5.</emphasis>
Adult female holotype of
<taxonomicName id="4C5B4D60FFCEFFAB2606F80BFCBF2690" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[543,769,1944,1968]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="19" pageNumber="212" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFCEFFAB2606F80BFCBF2690" box="[543,769,1944,1968]" italics="true" pageId="19" pageNumber="212">Cyrtodactylus thalang</emphasis>
</taxonomicName>
<emphasis id="B92FEAF1FFCEFFAB2711F80BFCCD2690" bold="true" box="[776,883,1944,1968]" pageId="19" pageNumber="212">
<taxonomicNameLabel id="A21C578AFFCEFFAB2711F80BFCE72690" box="[776,857,1944,1968]" pageId="19" pageNumber="212" rank="species">sp. nov.</taxonomicNameLabel>
a.
</emphasis>
Dorsal view of the specimen.
<emphasis id="B92FEAF1FFCEFFAB20B0F80BFB032690" bold="true" box="[1193,1213,1944,1968]" pageId="19" pageNumber="212">b.</emphasis>
Lateral view of head.
<emphasis id="B92FEAF1FFCEFFAB248EF82FFF1726F4" bold="true" box="[151,169,1980,2004]" pageId="19" pageNumber="212">c.</emphasis>
Dorsal view of head.
<emphasis id="B92FEAF1FFCEFFAB2591F82FFE2226F4" bold="true" box="[392,412,1980,2004]" pageId="19" pageNumber="212">d.</emphasis>
Ventral view of hind limbs, cloacal, and precloacal region.
<emphasis id="B92FEAF1FFCEFFAB27EFF82FFBB626F4" bold="true" box="[1014,1032,1980,2004]" pageId="19" pageNumber="212">e.</emphasis>
Ventral view of head.
<emphasis id="B92FEAF1FFCEFFAB20F5F828FB4526F3" bold="true" box="[1260,1275,1979,2003]" pageId="19" pageNumber="212">f.</emphasis>
Ventral view of tail.
<emphasis id="B92FEAF1FFCEFFAB24DDF873FF6926D8" bold="true" box="[196,215,2016,2040]" pageId="19" pageNumber="212">g.</emphasis>
Ventral view of tail. Photos by N. Poyarkov.
</paragraph>
</caption>
<subSubSection id="C3416568FFC9FFAD24DEFF05FF122673" lastPageId="21" lastPageNumber="214" pageId="20" pageNumber="213" type="description">
<paragraph id="8BE436E3FFC9FFAC24DEFF05FBF42389" blockId="20.[151,1437,150,1905]" pageId="20" pageNumber="213">
<emphasis id="B92FEAF1FFC9FFAC24DEFF05FD082190" bold="true" box="[199,694,150,177]" pageId="20" pageNumber="213">
Description of
<typeStatus id="54E08841FFC9FFAC2565FF04FE5D2191" box="[380,483,151,177]" pageId="20" pageNumber="213" type="holotype">holotype</typeStatus>
(
<figureCitation id="13602A66FFC9FFAC25EDFF05FD802191" box="[500,574,150,177]" captionStart="FIGURE 5" captionStartId="19.[151,250,1943,1967]" captionTargetBox="[186,1402,181,1919]" captionTargetId="figure-19@19.[186,1402,181,1919]" captionTargetPageId="19" captionText="FIGURE 5. Adult female holotype of Cyrtodactylus thalang sp. nov. a. Dorsal view of the specimen. b. Lateral view of head. c. Dorsal view of head. d. Ventral view of hind limbs, cloacal, and precloacal region. e. Ventral view of head. f. Ventral view of tail. g. Ventral view of tail. Photos by N. Poyarkov." figureDoi="http://doi.org/10.5281/zenodo.10984576" httpUri="https://zenodo.org/record/10984576/files/figure.png" pageId="20" pageNumber="213">Fig. 5</figureCitation>
;
<tableCitation id="C6D90358FFC9FFAC2654FF04FD182190" box="[589,678,150,177]" captionStart="TABLE 1" captionStartId="5.[151,239,151,175]" captionTargetBox="[156,1430,223,2024]" captionTargetId="graphics-58@5.[151,1437,216,2027]" captionTargetPageId="5" captionText="TABLE 1. Sex, raw meristic and morphometric, andcategorical, data used in the analyses of specimens in the Cyrtodactylus" pageId="20" pageNumber="213">Table 1</tableCitation>
).
</emphasis>
Adult female SVL
<quantity id="4CA39B06FFC9FFAC2785FF05FBB82191" box="[924,1030,150,177]" metricMagnitude="-2" metricUnit="m" metricValue="6.45" pageId="20" pageNumber="213" unit="mm" value="64.5">64.5 mm</quantity>
; head moderate in length (HL/SVL 0.29), width (HW/HL 0.68), depth (HD/HL 0.37), distinct from neck, triangular in dorsal profile; lores slightly concave anteriorly, weakly inflated posteriorly; prefrontal region concave; canthus rostralis rounded; snout elongate (ES/HL 0.38), rounded in dorsal profile; eye large (ED/HL 0.26); ear opening oval, small; eye to ear distance greater than diameter of eye; rostral rectangular, bordered posteriorly by large left and right supranasals and three small azygous internasals, bordered laterally by first supralabials; external nares bordered anteriorly by rostral, dorsally by large supranasal, posteriorly by two unequally sized smaller postnasals, bordered ventrally by first supralabial; 10R/10L rectangular supralabials, second through sixth supralabials slightly larger than first, then tapering below eye; 10R/10L infralabials tapering smoothly to just below and slightly past posterior margin of eye; scales of rostrum and lores flat to slightly domed, larger than granular scales on top of head and occiput; scales of occiput intermixed with distinct, small tubercles; superciliaries subrectangular, largest anterodorsally; mental triangular, bordered laterally by first infralabials and posteriorly by large left and right trapezoidal postmentals contacting medially for ~85% of their length posterior to mental; single enlarged, square to rectangular sublabial; much smaller sublabials extending posteriorly to fourth(L) and fifth(R) infralabial; gular and throat scales small, granular, grading posteriorly into slightly larger, flatter, smooth, imbricate, pectoral and ventral scales.
</paragraph>
<paragraph id="8BE436E3FFC9FFAC24DEFD20FE6522E9" blockId="20.[151,1437,150,1905]" pageId="20" pageNumber="213">Body relatively short (AG/SVL 0.46) with well-defined ventrolateral folds; dorsal scales small, granular interspersed with larger, weakly keeled, trihedral, semi-regularly arranged, tubercles; tubercles extend from occipital region to slightly beyond base of tail transforming in to large, nearly spine-like tubercles in paravertebral and lateral rows; smaller tubercles extend anteriorly onto nape and occiput, diminishing in size anteriorly; approximately 16 longitudinal rows of tubercles at midbody; approximately 24 paravertebral tubercles; tubercles on flanks; 28 longitudinal rows of flat, imbricate, ventral scales much larger than dorsal scales; 165 transverse rows of ventral scales; 11 large, pitted, precloacal scales; no deep precloacal groove or depression; and two rows of enlarged postprecloacal scales on midline.</paragraph>
<paragraph id="8BE436E3FFC9FFAC24DEFC40FD0424C5" blockId="20.[151,1437,150,1905]" pageId="20" pageNumber="213">Forelimbs moderate in stature, relatively short (ForL/SVL 0.15); granular scales of forearm slightly larger than those on body, not interspersed with tubercles; palmar scales rounded, slightly raised; digits well-developed, relatively short, inflected at basal interphalangeal joints; digits narrower distal to inflections; subdigital lamellae wide, transversely expanded proximal to joint inflections, narrower transverse lamellae distal to joint inflections; claws well-developed, claw base sheathed by a dorsal and ventral scale; 12R/12L expanded and 11R/11L unexpanded lamellae beneath the fourth finger; hind limbs larger and thicker than forelimbs, moderate in length (TibL/SVL 0.16), covered dorsally by granular scales interspersed with small tubercles dorsally and posteriorly and anteriorly by flat, slightly larger, subimbricate scales; ventral scales of thigh flat, imbricate, larger than dorsals; subtibial scales flat, imbricate; one row of 6R/7L enlarged pitted femoral scales not continuous with enlarged pitted precloacal scales, terminating distally at knee; 6R/7L enlarged femoral scales; proximal femoral scales smaller than distal femorals, the former forming an abrupt union with much smaller, rounded, ventral scales of posteroventral margin of thigh; plantar scales flat, subimbricate; digits relatively short, well-developed, inflected at basal interphalangeal joints; 6R/6L wide, transversely expanded subdigital lamellae on fourth toe proximal to joint inflection extending onto sole, and 12R/12L unexpanded lamellae beneath the fourth toe distal to joint inflection; and claws well-developed, claw base sheathed by a dorsal and ventral scale.</paragraph>
<paragraph id="8BE436E3FFC9FFAC24DEFA7CFA8C279D" blockId="20.[151,1437,150,1905]" pageId="20" pageNumber="213">
Tail original,
<quantity id="4CA39B06FFC9FFAC2544FA7CFE7E2729" box="[349,448,1519,1545]" metricMagnitude="-2" metricUnit="m" metricValue="7.89" pageId="20" pageNumber="213" unit="mm" value="78.9">78.9 mm</quantity>
long (TL/SVL 1.22), 5.0 mm in width at base, tapering to a point; nearly square in cross-section; dorsal scales flat, intermixed with tall, conical tubercles forming paravertebral and dorsolateral rows; large, posteriorly directed, semi-spinose tubercles forming a wide ventrolateral caudal fringe; larger scales of ventrolateral fringe occur at regular intervals; medial subcaudals small unpaired, an enlarged single medial subcaudal longitudinal row absent; no subcaudal ventrolateral folds; subcaudals, larger than dorsal caudals; base of tail lacking hemipenial swellings; 3R/3L small conical postcloacal tubercles at base of tail; and postcloacal scales flat, imbricate.
</paragraph>
<paragraph id="8BE436E3FFC9FFAC24DEF955FB822651" blockId="20.[151,1437,150,1905]" pageId="20" pageNumber="213">
<emphasis id="B92FEAF1FFC9FFAC24DEF955FE4E27C0" bold="true" box="[199,496,1734,1760]" pageId="20" pageNumber="213">
Coloration in life (
<figureCitation id="13602A66FFC9FFAC2584F955FE5C27C0" box="[413,482,1734,1760]" captionStart="FIGURE 4" captionStartId="18.[151,250,1562,1586]" captionTargetBox="[156,1436,186,1538]" captionTargetId="figure-33@18.[151,1436,181,1538]" captionTargetPageId="18" captionText="FIGURE 4. a. MFA of all species of the Cyrtodactylus brevipalmatus group minus C. elok. b. Percent contribution of numeric characters to the first five dimensions accounting for 59.9% of the total variation in the data set. c. Percent contribution of each character type to the first five dimension of the data set. d. Comparative photographs of the species of the brevipalmatus lineage. Cyrtodactylus thalang sp. nov. from Phuket Island, Phuket Province, Thailand, photo by N. Poyarkov: C. cf. brevipalmatus, from Langkawi Island, Kedah State, Malaysia, photo by E.S.H. Quah; and C. brevipalmatus, from Khao Luang, Nakhon Si Thammarat Province, Thailand, photo from Creative Commons Attribution Share Alike, https://creativecommons.org/licenses/ by-sa/4.0/deed.en." figureDoi="http://doi.org/10.5281/zenodo.10984574" httpUri="https://zenodo.org/record/10984574/files/figure.png" pageId="20" pageNumber="213">Fig. 4</figureCitation>
).
</emphasis>
Dorsal ground color of head, body, and limbs nearly unicolor tan-gold; faint butterfly marking on nape; light-brown, broken, diffuse postorbital stripe between eye and ear opening; very faint light-brown speckling on digits; four wide light-brown caudal bands not encircling tail extend from base to two-thirds way down tail; ventral surfaces of body and limbs beige, generally immaculate except for faint stippling, subcaudal region generally darker; iris light-gold in color bearing dark-brown vermiculations.
</paragraph>
<caption id="DF24666BFFC8FFAD248EF9ADFAE027BE" ID-DOI="http://doi.org/10.5281/zenodo.10984583" ID-Zenodo-Dep="10984583" httpUri="https://zenodo.org/record/10984583/files/figure.png" pageId="21" pageNumber="214" startId="21.[151,250,1598,1622]" targetBox="[165,1422,195,1560]" targetPageId="21" targetType="figure">
<paragraph id="8BE436E3FFC8FFAD248EF9ADFAE027BE" blockId="21.[151,1437,1598,1695]" pageId="21" pageNumber="214">
<emphasis id="B92FEAF1FFC8FFAD248EF9ADFEAD2776" bold="true" box="[151,275,1598,1622]" pageId="21" pageNumber="214">FIGURE 6.</emphasis>
Dorsal and ventral views of the type series of
<taxonomicName id="4C5B4D60FFC8FFAD26FEF9ADFC762776" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[743,968,1598,1622]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="21" pageNumber="214" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFC8FFAD26FEF9ADFC762776" box="[743,968,1598,1622]" italics="true" pageId="21" pageNumber="214">Cyrtodactylus thalang</emphasis>
</taxonomicName>
<emphasis id="B92FEAF1FFC8FFAD27D7F9ADFBA12776" bold="true" box="[974,1055,1598,1622]" pageId="21" pageNumber="214">
<taxonomicNameLabel id="A21C578AFFC8FFAD27D7F9ADFBA12776" box="[974,1055,1598,1622]" pageId="21" pageNumber="214" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
(ZMMU Re-1783617839, females).
<emphasis id="B92FEAF1FFC8FFAD248EF9F1FF14275A" bold="true" box="[151,170,1634,1658]" pageId="21" pageNumber="214">a.</emphasis>
Dorsal view of the specimen.
<emphasis id="B92FEAF1FFC8FFAD25F0F9F1FE43275A" bold="true" box="[489,509,1634,1658]" pageId="21" pageNumber="214">b.</emphasis>
Lateral view of head.
<emphasis id="B92FEAF1FFC8FFAD26F0F9F1FD45275A" bold="true" box="[745,763,1634,1658]" pageId="21" pageNumber="214">c.</emphasis>
Dorsal view of head.
<emphasis id="B92FEAF1FFC8FFAD27FAF9F1FC49275A" bold="true" box="[995,1015,1634,1658]" pageId="21" pageNumber="214">d.</emphasis>
Ventral view of hind limbs, cloacal, and precloacal region.
<emphasis id="B92FEAF1FFC8FFAD254AF915FEDA27BE" bold="true" box="[339,356,1670,1694]" pageId="21" pageNumber="214">e.</emphasis>
Ventral view of head.
<emphasis id="B92FEAF1FFC8FFAD2650F915FDE727BE" bold="true" box="[585,601,1670,1694]" pageId="21" pageNumber="214">f.</emphasis>
Ventral view of tail.
<emphasis id="B92FEAF1FFC8FFAD2737F915FCFE27BE" bold="true" box="[814,832,1670,1694]" pageId="21" pageNumber="214">g.</emphasis>
Ventral view of tail. Photographs by N. A. Poyarkov.
</paragraph>
</caption>
<paragraph id="8BE436E3FFC8FFAD24DEF95FFF122673" blockId="21.[151,1437,1740,2019]" pageId="21" pageNumber="214">
<emphasis id="B92FEAF1FFC8FFAD24DEF95FFDB427C6" bold="true" box="[199,522,1740,1767]" pageId="21" pageNumber="214">
Variation (
<figureCitation id="13602A66FFC8FFAD2550F95FFE2C27C6" box="[329,402,1740,1766]" captionStart="FIGURE 6" captionStartId="21.[151,250,1598,1622]" captionTargetBox="[165,1422,195,1560]" captionTargetId="figure-19@21.[151,1435,181,1574]" captionTargetPageId="21" captionText="FIGURE 6. Dorsal and ventral views of the type series of Cyrtodactylus thalang sp. nov. (ZMMU Re-1783617839, females). a. Dorsal view of the specimen. b. Lateral view of head. c. Dorsal view of head. d. Ventral view of hind limbs, cloacal, and precloacal region. e. Ventral view of head. f. Ventral view of tail. g. Ventral view of tail. Photographs by N. A. Poyarkov." figureDoi="http://doi.org/10.5281/zenodo.10984583" httpUri="https://zenodo.org/record/10984583/files/figure.png" pageId="21" pageNumber="214">Fig. 6</figureCitation>
;
<tableCitation id="C6D90358FFC8FFAD25B8F95EFE4427C6" box="[417,506,1740,1767]" captionStart="TABLE 1" captionStartId="5.[151,239,151,175]" captionTargetBox="[156,1430,223,2024]" captionTargetId="graphics-58@5.[151,1437,216,2027]" captionTargetPageId="5" captionText="TABLE 1. Sex, raw meristic and morphometric, andcategorical, data used in the analyses of specimens in the Cyrtodactylus" pageId="21" pageNumber="214">Table 1</tableCitation>
).
</emphasis>
Individuals of the
<typeStatus id="54E08841FFC8FFAD26FFF95EFCA827C7" box="[742,790,1741,1767]" pageId="21" pageNumber="214">type</typeStatus>
series are very similar in overall coloration and pattern. ZMMU Re-1783738 have three faint darker dorsal bands and ZMMU Re-17837 has a fully regenerated tail. Morphometric and meristic differences within and among all species of the
<taxonomicName id="4C5B4D60FFC8FFAD27FEF887FB38260E" box="[999,1158,1812,1838]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="21" pageNumber="214" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFC8FFAD27FEF887FB38260E" box="[999,1158,1812,1838]" italics="true" pageId="21" pageNumber="214">brevipalmatus</emphasis>
</taxonomicName>
group are listed in
<tableCitation id="C6D90358FFC8FFAD2147F887FF182673" captionStart="TABLE 1" captionStartId="5.[151,239,151,175]" captionTargetBox="[156,1430,223,2024]" captionTargetId="graphics-58@5.[151,1437,216,2027]" captionTargetPageId="5" captionText="TABLE 1. Sex, raw meristic and morphometric, andcategorical, data used in the analyses of specimens in the Cyrtodactylus" pageId="21" pageNumber="214">Table 1</tableCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C3416568FFC8FFAD24DEF8CFFD2F26C3" pageId="21" pageNumber="214" type="distribution">
<paragraph id="8BE436E3FFC8FFAD24DEF8CFFD2F26C3" blockId="21.[151,1437,1740,2019]" pageId="21" pageNumber="214">
<emphasis id="B92FEAF1FFC8FFAD24DEF8CFFEDD2656" bold="true" box="[199,355,1884,1910]" pageId="21" pageNumber="214">Distribution:</emphasis>
<taxonomicName id="4C5B4D60FFC8FFAD2577F8CFFDD22656" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[366,620,1884,1910]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="21" pageNumber="214" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFC8FFAD2577F8CFFDD22656" box="[366,620,1884,1910]" italics="true" pageId="21" pageNumber="214">Cyrtodactylus thalang</emphasis>
</taxonomicName>
<emphasis id="B92FEAF1FFC8FFAD266EF8CEFD6A2657" bold="true" box="[631,724,1885,1911]" pageId="21" pageNumber="214">
<taxonomicNameLabel id="A21C578AFFC8FFAD266EF8CEFD6A2657" box="[631,724,1885,1911]" pageId="21" pageNumber="214" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
is currently known only from the
<typeStatus id="54E08841FFC8FFAD2068F8CEFB1F2657" box="[1137,1185,1885,1911]" pageId="21" pageNumber="214">type</typeStatus>
locality at the Kathu waterfall, on the border of Thalang and Kathu districts,
<collectingRegion id="499FF801FFC8FFAD2717F813FC7726BA" box="[782,969,1920,1946]" country="Thailand" name="Phuket" pageId="21" pageNumber="214">Phuket Province</collectingRegion>
,
<collectingCountry id="F34C7673FFC8FFAD27CCF813FB8726BA" box="[981,1081,1920,1946]" name="Thailand" pageId="21" pageNumber="214">Thailand</collectingCountry>
in relatively close proximity to the
<typeStatus id="54E08841FFC8FFAD24D9F836FF4E269F" box="[192,240,1957,1983]" pageId="21" pageNumber="214">type</typeStatus>
locality of
<taxonomicName id="4C5B4D60FFC8FFAD2577F836FD93269E" box="[366,557,1956,1983]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="21" pageNumber="214" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFC8FFAD2577F836FD93269E" box="[366,557,1956,1983]" italics="true" pageId="21" pageNumber="214">C. brevipalmatus</emphasis>
</taxonomicName>
(
<figureCitation id="13602A66FFC8FFAD2625F837FD3E269F" box="[572,640,1956,1983]" captionStart="FIGURE 7" captionStartId="22.[151,250,1417,1441]" captionTargetBox="[151,1436,181,1393]" captionTargetId="figure-33@22.[151,1436,181,1393]" captionTargetPageId="22" captionText="FIGURE 7. Distribution of the species of the Cyrtodactylus brevipalmatus lineage highlighting the fragmented upland terrane of southernmost peninsular Thailand. Stars denoted type localities." figureDoi="http://doi.org/10.5281/zenodo.10984585" httpUri="https://zenodo.org/record/10984585/files/figure.png" pageId="21" pageNumber="214">Fig. 7</figureCitation>
). The fragmented upland landscape of the latter, leaves the potential for additional species (see
<bibRefCitation id="EFCA4B12FFC8FFAD2583F85BFD3B26C3" author="Grismer, L. L. &amp; Anuar, M. S. S. &amp; Muin, M. A. &amp; Ahmad, N &amp; Quah, E. S. H." box="[410,645,1992,2019]" pageId="21" pageNumber="214" pagination="265 - 275" refId="ref18388" refString="Grismer, L. L., Anuar, M. S. S., Muin, M. A., Ahmad, N &amp; Quah, E. S. H. (2023 a) Genetic and morphological concordance and discordance within the Cyrtodactylus brevipalmatus group (Squamata: Gekkonidae). Zootaxa, 5353 (3), 265 - 275. https: // doi. org / 10.11646 / zootaxa. 5353.3.4" type="journal article" year="2023">
Grismer
<emphasis id="B92FEAF1FFC8FFAD25E4F85AFD8B26C2" box="[509,565,1992,2018]" italics="true" pageId="21" pageNumber="214">et al.</emphasis>
2023a
</bibRefCitation>
).
</paragraph>
</subSubSection>
<caption id="DF24666BFFCBFFAE248EFA1AFC8224E5" ID-DOI="http://doi.org/10.5281/zenodo.10984585" ID-Zenodo-Dep="10984585" httpUri="https://zenodo.org/record/10984585/files/figure.png" pageId="22" pageNumber="215" startId="22.[151,250,1417,1441]" targetBox="[151,1436,181,1393]" targetPageId="22" targetType="figure">
<paragraph id="8BE436E3FFCBFFAE248EFA1AFC8224E5" blockId="22.[151,1436,1417,1478]" pageId="22" pageNumber="215">
<emphasis id="B92FEAF1FFCBFFAE248EFA1AFEAD2481" bold="true" box="[151,275,1417,1441]" pageId="22" pageNumber="215">FIGURE 7.</emphasis>
Distribution of the species of the
<taxonomicName id="4C5B4D60FFCBFFAE2674FA1AFC2C2481" box="[621,914,1417,1441]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCBFFAE2674FA1AFC2C2481" box="[621,914,1417,1441]" italics="true" pageId="22" pageNumber="215">Cyrtodactylus brevipalmatus</emphasis>
</taxonomicName>
lineage highlighting the fragmented upland terrane of southernmost peninsular Thailand. Stars denoted type localities.
</paragraph>
</caption>
<subSubSection id="C3416568FFCBFFAF24DEFA67FA27203D" lastPageId="23" lastPageNumber="216" pageId="22" pageNumber="215" type="etymology">
<paragraph id="8BE436E3FFCBFFAE24DEFA67FD5D27BD" blockId="22.[151,1437,1523,2018]" pageId="22" pageNumber="215">
<emphasis id="B92FEAF1FFCBFFAE24DEFA67FEF0272E" bold="true" box="[199,334,1524,1550]" pageId="22" pageNumber="215">Etymology.</emphasis>
The name of the new species is a noun in apposition and is therefore invariable; the species name
<taxonomicName id="4C5B4D60FFCBFFAE248EF98BFF442711" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[151,250,1559,1586]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="thalang">
<emphasis id="B92FEAF1FFCBFFAE24BDF984FF442711" box="[164,250,1559,1585]" italics="true" pageId="22" pageNumber="215">thalang</emphasis>
</taxonomicName>
” is given in reference to the historical name of
<collectingRegion id="499FF801FFCBFFAE271AF984FCEF2711" box="[771,849,1559,1585]" country="Thailand" name="Phuket" pageId="22" pageNumber="215">Phuket</collectingRegion>
Island, formerly known as Thalang (in Thai: “ถลาง”,
<emphasis id="B92FEAF1FFCBFFAE248EF9A8FEAD2775" box="[151,275,1595,1621]" italics="true" pageId="22" pageNumber="215">Tha-Laang</emphasis>
). The name also refers to the northern district of the
<collectingRegion id="499FF801FFCBFFAE2779F9A8FBA42775" box="[864,1050,1595,1621]" country="Thailand" name="Phuket" pageId="22" pageNumber="215">Phuket Province</collectingRegion>
, where the
<typeStatus id="54E08841FFCBFFAE2083F9AFFB742776" box="[1178,1226,1596,1622]" pageId="22" pageNumber="215">type</typeStatus>
locality is located. We recommend the names “
<emphasis id="B92FEAF1FFCBFFAE25CBF9CCFD4C2759" box="[466,754,1631,1657]" italics="true" pageId="22" pageNumber="215">Thalang Bent-toed Gecko</emphasis>
” and “
<emphasis id="B92FEAF1FFCBFFAE2758F9CCFBA02759" box="[833,1054,1631,1657]" italics="true" pageId="22" pageNumber="215">Tuk-Kai Tha-Laang</emphasis>
” (ตุ๊กกายถลาง) as common names of the new species in English and Thai, respectively.
</paragraph>
<paragraph id="8BE436E3FFCBFFAF24DEF934FA27203D" blockId="22.[151,1437,1523,2018]" lastBlockId="23.[151,1437,151,609]" lastPageId="23" lastPageNumber="216" pageId="22" pageNumber="215">
<emphasis id="B92FEAF1FFCBFFAE24DEF934FED227E1" bold="true" box="[199,364,1703,1729]" pageId="22" pageNumber="215">Comparisons.</emphasis>
<taxonomicName id="4C5B4D60FFCBFFAE256DF934FDD027E1" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[372,622,1703,1729]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFCBFFAE256DF934FDD027E1" box="[372,622,1703,1729]" italics="true" pageId="22" pageNumber="215">Cyrtodactylus thalang</emphasis>
</taxonomicName>
<emphasis id="B92FEAF1FFCBFFAE266FF93BFD6E27E2" bold="true" box="[630,720,1704,1730]" pageId="22" pageNumber="215">
<taxonomicNameLabel id="A21C578AFFCBFFAE266FF93BFD6E27E2" box="[630,720,1704,1730]" pageId="22" pageNumber="215" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
is the sister species to a lineage composed of
<taxonomicName id="4C5B4D60FFCBFFAE20C5F93BFA2327E1" box="[1244,1437,1703,1730]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCBFFAE20C5F93BFA2327E1" box="[1244,1437,1703,1730]" italics="true" pageId="22" pageNumber="215">C. brevipalmatus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C5B4D60FFCBFFAE24D1F95FFE1027C5" box="[200,430,1739,1766]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" isUncertain="true" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCBFFAE24D1F95FFF5C27C6" box="[200,226,1740,1766]" italics="true" pageId="22" pageNumber="215">C.</emphasis>
cf.
<emphasis id="B92FEAF1FFCBFFAE2509F958FE1027C5" box="[272,430,1739,1765]" italics="true" pageId="22" pageNumber="215">brevipalmatus</emphasis>
</taxonomicName>
(
<figureCitation id="13602A66FFCBFFAE25D9F958FDBA27C6" box="[448,516,1739,1766]" captionStart="FIGURE 3" captionStartId="16.[151,250,906,930]" captionTargetBox="[157,1429,187,876]" captionTargetId="figure-33@16.[151,1435,181,882]" captionTargetPageId="16" captionText="FIGURE 3. Opposing Maximum Likelihood and BEAST phylogenies showing areas of congruence and incongruence between the two analyses." figureDoi="http://doi.org/10.5281/zenodo.10984570" httpUri="https://zenodo.org/record/10984570/files/figure.png" pageId="22" pageNumber="215">Fig. 3</figureCitation>
) and bears an uncorrected sequence divergence from them of 15.1% and 14.7%, respectively. Morphometrically,
<taxonomicName id="4C5B4D60FFCBFFAE2610F963FD3C2629" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[521,642,1775,1802]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFCBFFAE2610F963FD3C2629" box="[521,642,1775,1802]" italics="true" pageId="22" pageNumber="215">C. thalang</emphasis>
</taxonomicName>
<emphasis id="B92FEAF1FFCBFFAE2694F963FD55262A" bold="true" box="[653,747,1776,1802]" pageId="22" pageNumber="215">
<taxonomicNameLabel id="A21C578AFFCBFFAE2694F963FD55262A" box="[653,747,1776,1802]" pageId="22" pageNumber="215" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
differs from
<taxonomicName id="4C5B4D60FFCBFFAE2793F963FBF22629" box="[906,1100,1775,1802]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCBFFAE2793F963FBF22629" box="[906,1100,1775,1802]" italics="true" pageId="22" pageNumber="215">C. brevipalmatus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C5B4D60FFCBFFAE2092F963FACB2629" box="[1163,1397,1775,1802]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" isUncertain="true" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCBFFAE2092F963FB1B262A" box="[1163,1189,1776,1802]" italics="true" pageId="22" pageNumber="215">C.</emphasis>
cf.
<emphasis id="B92FEAF1FFCBFFAE20CEF97CFACB2629" box="[1239,1397,1775,1801]" italics="true" pageId="22" pageNumber="215">brevipalmatus</emphasis>
</taxonomicName>
by having significantly shorter femora (FemL) and a narrower interorbital distance (IO) and differs further from
<taxonomicName id="4C5B4D60FFCBFFAE219AF887FEE22671" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" isUncertain="true" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCBFFAE219AF887FA22260E" box="[1411,1436,1812,1838]" italics="true" pageId="22" pageNumber="215">C.</emphasis>
cf.
<emphasis id="B92FEAF1FFCBFFAE24A7F8A4FEE22671" box="[190,348,1847,1873]" italics="true" pageId="22" pageNumber="215">brevipalmatus</emphasis>
</taxonomicName>
by having significantly longer brachia (HumL). Meristically,
<taxonomicName id="4C5B4D60FFCBFFAE2030F8ABFB1C2671" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[1065,1186,1847,1874]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFCBFFAE2030F8ABFB1C2671" box="[1065,1186,1847,1874]" italics="true" pageId="22" pageNumber="215">C. thalang</emphasis>
</taxonomicName>
<emphasis id="B92FEAF1FFCBFFAE20B4F8ABFAB72672" bold="true" box="[1197,1289,1848,1874]" pageId="22" pageNumber="215">
<taxonomicNameLabel id="A21C578AFFCBFFAE20B4F8ABFAB72672" box="[1197,1289,1848,1874]" pageId="22" pageNumber="215" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
differs from
<taxonomicName id="4C5B4D60FFCBFFAE248EF8CFFEE92655" box="[151,343,1883,1910]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCBFFAE248EF8CFFEE92655" box="[151,343,1883,1910]" italics="true" pageId="22" pageNumber="215">C. brevipalmatus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C5B4D60FFCBFFAE2588F8CFFDC82655" box="[401,630,1883,1910]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" isUncertain="true" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCBFFAE2588F8CFFE152656" box="[401,427,1884,1910]" italics="true" pageId="22" pageNumber="215">C.</emphasis>
cf.
<emphasis id="B92FEAF1FFCBFFAE25C1F8C8FDC82655" box="[472,630,1883,1909]" italics="true" pageId="22" pageNumber="215">brevipalmatus</emphasis>
</taxonomicName>
by having significantly fewer ventral scales (VS), expanded subdigital lamellae on the fourth finger (FL4E), and unexpanded subdigital lamellae on the fourth toe (TL4U). It differs further from
<taxonomicName id="4C5B4D60FFCBFFAE24CFF837FE02269D" box="[214,444,1955,1982]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" isUncertain="true" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCBFFAE24CFF837FF4E269E" box="[214,240,1956,1982]" italics="true" pageId="22" pageNumber="215">C.</emphasis>
cf.
<emphasis id="B92FEAF1FFCBFFAE2507F830FE02269D" box="[286,444,1955,1981]" italics="true" pageId="22" pageNumber="215">brevipalmatus</emphasis>
</taxonomicName>
by having significantly fewer enlarged femoral scales (FS) but significantly more than in
<taxonomicName id="4C5B4D60FFCBFFAE24ACF85BFECB26C1" box="[181,373,1991,2018]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCBFFAE24ACF85BFECB26C1" box="[181,373,1991,2018]" italics="true" pageId="22" pageNumber="215">C. brevipalmatus</emphasis>
</taxonomicName>
. Categorically,
<taxonomicName id="4C5B4D60FFCBFFAE2631F85BFD2126C1" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[552,671,1991,2018]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFCBFFAE2631F85BFD2126C1" box="[552,671,1991,2018]" italics="true" pageId="22" pageNumber="215">C. thalang</emphasis>
</taxonomicName>
<emphasis id="B92FEAF1FFCBFFAE26B1F85BFCBC26C2" bold="true" box="[680,770,1992,2018]" pageId="22" pageNumber="215">
<taxonomicNameLabel id="A21C578AFFCBFFAE26B1F85BFCBC26C2" box="[680,770,1992,2018]" pageId="22" pageNumber="215" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
differs from
<taxonomicName id="4C5B4D60FFCBFFAE2780F85BFBE726C1" box="[921,1113,1991,2018]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCBFFAE2780F85BFBE726C1" box="[921,1113,1991,2018]" italics="true" pageId="22" pageNumber="215">C. brevipalmatus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C5B4D60FFCBFFAE208AF85BFAC626C1" box="[1171,1400,1991,2018]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" isUncertain="true" kingdom="Animalia" pageId="22" pageNumber="215" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCBFFAE208AF85BFB1226C2" box="[1171,1196,1992,2018]" italics="true" pageId="22" pageNumber="215">C.</emphasis>
cf.
<emphasis id="B92FEAF1FFCBFFAE20C3F854FAC626C1" box="[1242,1400,1991,2017]" italics="true" pageId="22" pageNumber="215">brevipalmatus</emphasis>
</taxonomicName>
by lacking as opposed to having small tubercles on the flanks (FKT), having large as opposed to small dorsolateral tubercles (DCT), a wide as opposed to a narrow ventrolateral caudal fringe (VLF1), more square as opposed to circular cross-section of the tail (TLcross), and lacking as opposed to having enlarged median subcaudals (SC2). Raw morphometric, meristic, and categorical differences among and between all other species are listed in
<tableCitation id="C6D90358FFCAFFAF2159FE90FA2D203D" box="[1344,1427,259,285]" captionStart="TABLE 1" captionStartId="5.[151,239,151,175]" captionTargetBox="[156,1430,223,2024]" captionTargetId="graphics-58@5.[151,1437,216,2027]" captionTargetPageId="5" captionText="TABLE 1. Sex, raw meristic and morphometric, andcategorical, data used in the analyses of specimens in the Cyrtodactylus" pageId="23" pageNumber="216">Table 1</tableCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C3416568FFCAFFA024DEFEB4FDA92711" lastPageId="24" lastPageNumber="217" pageId="23" pageNumber="216" type="biology_ecology">
<paragraph id="8BE436E3FFCAFFAF24DEFEB4FC2B2341" blockId="23.[151,1437,151,609]" pageId="23" pageNumber="216">
<emphasis id="B92FEAF1FFCAFFAF24DEFEB4FE372060" bold="true" box="[199,393,294,321]" pageId="23" pageNumber="216">Natural history.</emphasis>
<taxonomicName id="4C5B4D60FFCAFFAF258AFEB4FD2E2061" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[403,656,295,321]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="23" pageNumber="216" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFCAFFAF258AFEB4FD2E2061" box="[403,656,295,321]" italics="true" pageId="23" pageNumber="216">Cyrtodactylus thalang</emphasis>
</taxonomicName>
<emphasis id="B92FEAF1FFCAFFAF2683FEB4FD492061" bold="true" box="[666,759,295,321]" pageId="23" pageNumber="216">
<taxonomicNameLabel id="A21C578AFFCAFFAF2683FEB4FD492061" box="[666,759,295,321]" pageId="23" pageNumber="216" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
inhabits lowland evergreen tropical forests, and was most often recorded in mixed bamboo and dipterocarp forests at elevations ranging from
<quantity id="4CA39B06FFCAFFAF2073FED8FB602045" box="[1130,1246,331,357]" metricMagnitude="2" metricUnit="m" metricValue="1.4" metricValueMax="2.0" metricValueMin="0.8" pageId="23" pageNumber="216" unit="m" value="140.0" valueMax="200.0" valueMin="80.0">80200 m</quantity>
a.s.l. The forest where the new species was observed is dominated by the large trees of
<taxonomicName id="4C5B4D60FFCAFFAF27C3FEFCFA2320A9" authority="Reinw. ex Blume." authorityName="Blume." box="[986,1437,367,393]" class="Magnoliopsida" family="Moraceae" genus="Artocarpus" kingdom="Plantae" order="Rosales" pageId="23" pageNumber="216" phylum="Tracheophyta" rank="species" species="elasticus">
<emphasis id="B92FEAF1FFCAFFAF27C3FEFCFB7A20A9" box="[986,1220,367,393]" italics="true" pageId="23" pageNumber="216">Artocarpus elasticus</emphasis>
Reinw. ex Blume.
</taxonomicName>
and
<taxonomicName id="4C5B4D60FFCAFFAF24D1FE00FDB2208D" authority="Korth." authorityName="Korth." box="[200,524,403,429]" class="Magnoliopsida" family="Dipterocarpaceae" genus="Dipterocarpus" kingdom="Plantae" order="Malvales" pageId="23" pageNumber="216" phylum="Tracheophyta" rank="species" species="baudii">
<emphasis id="B92FEAF1FFCAFFAF24D1FE00FE05208D" box="[200,443,403,429]" italics="true" pageId="23" pageNumber="216">Dipterocarpus baudii</emphasis>
Korth.
</taxonomicName>
(
<taxonomicName id="4C5B4D60FFCAFFAF2602FE00FD5D208D" box="[539,739,403,429]" class="Magnoliopsida" family="Dipterocarpaceae" kingdom="Plantae" order="Malvales" pageId="23" pageNumber="216" phylum="Tracheophyta" rank="family">Dipterocarpaceae</taxonomicName>
) (
<figureCitation id="13602A66FFCAFFAF26E2FE00FCFE208D" box="[763,832,403,429]" captionStart="FIGURE 8" captionStartId="23.[151,250,1512,1536]" captionTargetBox="[151,1435,633,1489]" captionTargetId="figure-248@23.[151,1435,633,1489]" captionTargetPageId="23" captionText="FIGURE 8. Dipterocarp forest and microhabitat of the type locality of Cyrtodactylus thalang sp. nov. near the Kathu waterfall, border of Thalang and Kathu districts, Phuket Province, Thailand. Photo by N. Poyarkov." figureDoi="http://doi.org/10.5281/zenodo.10984587" httpUri="https://zenodo.org/record/10984587/files/figure.png" pageId="23" pageNumber="216">Fig. 8</figureCitation>
). Lizards were most often observed at night between 1900 h and 2400 h perched on the thin branches in the middle to upper canopy (
<quantity id="4CA39B06FFCAFFAF203CFE24FBC220F1" box="[1061,1148,439,465]" metricMagnitude="0" metricUnit="m" metricValue="8.0" metricValueMax="10.0" metricValueMin="6.0" pageId="23" pageNumber="216" unit="m" value="8.0" valueMax="10.0" valueMin="6.0">610 m</quantity>
above the ground) above rocky stream.
<specimenCount id="9D5DFD6AFFCAFFAF2525FE48FE6120D5" box="[316,479,475,501]" count="1" pageId="23" pageNumber="216" type="generic">One specimen</specimenCount>
was observed ca.
<quantity id="4CA39B06FFCAFFAF26AEFE48FD5A20D5" box="[695,740,475,501]" metricMagnitude="0" metricUnit="m" metricValue="2.0" pageId="23" pageNumber="216" unit="m" value="2.0">2 m</quantity>
above the ground on a large granite boulder within a dense tangle of bamboo. At the
<typeStatus id="54E08841FFCAFFAF25A1FE6CFE562339" box="[440,488,511,537]" pageId="23" pageNumber="216">type</typeStatus>
locality,
<taxonomicName id="4C5B4D60FFCAFFAF2648FE6CFD772339" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[593,713,511,537]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="23" pageNumber="216" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFCAFFAF2648FE6CFD772339" box="[593,713,511,537]" italics="true" pageId="23" pageNumber="216">C. thalang</emphasis>
</taxonomicName>
<emphasis id="B92FEAF1FFCAFFAF26C9FE6CFC952339" bold="true" box="[720,811,511,537]" pageId="23" pageNumber="216">
<taxonomicNameLabel id="A21C578AFFCAFFAF26C9FE6CFC952339" box="[720,811,511,537]" pageId="23" pageNumber="216" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
was recorded in sympatry with
<taxonomicName id="4C5B4D60FFCAFFAF208EFE6CFEC4231D" authority="Das &amp; Leong, 2004" authorityName="Das &amp; Leong" authorityYear="2004" class="Squamata" family="Gekkonidae" genus="Cnemaspis" kingdom="Animalia" pageId="23" pageNumber="216" phylum="Chordata" rank="species" species="phuketensis">
<emphasis id="B92FEAF1FFCAFFAF208EFE6CFA232339" box="[1175,1437,511,537]" italics="true" pageId="23" pageNumber="216">Cnemaspis phuketensis</emphasis>
Das &amp; Leong, 2004
</taxonomicName>
,
<taxonomicName id="4C5B4D60FFCAFFAF259EFDB0FCC4231D" authority="(Theobald, 1876)" baseAuthorityName="Theobald" baseAuthorityYear="1876" box="[391,890,547,573]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" isUncertain="true" kingdom="Animalia" pageId="23" pageNumber="216" phylum="Chordata" rank="species" species="oldhami">
<emphasis id="B92FEAF1FFCAFFAF259EFDB0FD9A231D" box="[391,548,547,573]" italics="true" pageId="23" pageNumber="216">Cyrtodactylus</emphasis>
cf.
<emphasis id="B92FEAF1FFCAFFAF2648FDB0FD13231D" box="[593,685,547,573]" italics="true" pageId="23" pageNumber="216">oldhami</emphasis>
(Theobald, 1876)
</taxonomicName>
,
<taxonomicName id="4C5B4D60FFCAFFAF279EFDB0FA22231D" authority="Grismer &amp; Ahmad, 2008" authorityName="Grismer &amp; Ahmad" authorityYear="2008" box="[903,1436,547,573]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="23" pageNumber="216" phylum="Chordata" rank="species" species="macrotuberculatus">
<emphasis id="B92FEAF1FFCAFFAF279EFDB0FBC4231D" box="[903,1146,547,573]" italics="true" pageId="23" pageNumber="216">C. macrotuberculatus</emphasis>
Grismer &amp; Ahmad, 2008
</taxonomicName>
(
<taxonomicName id="4C5B4D60FFCAFFAF2486FDD4FE932341" box="[159,301,583,609]" class="Squamata" family="Gekkonidae" kingdom="Animalia" pageId="23" pageNumber="216" phylum="Chordata" rank="family">Gekkonidae</taxonomicName>
), and
<taxonomicName id="4C5B4D60FFCAFFAF2576FDD4FCB92341" authority="(Boie, 1827)" baseAuthorityName="Boie" baseAuthorityYear="1827" box="[367,775,583,609]" class="Squamata" family="Viperidae" genus="Tropidolaemus" kingdom="Animalia" pageId="23" pageNumber="216" phylum="Chordata" rank="species" species="wagleri">
<emphasis id="B92FEAF1FFCAFFAF2576FDD4FDCD2341" box="[367,627,583,609]" italics="true" pageId="23" pageNumber="216">Tropidolaemus wagleri</emphasis>
(Boie, 1827)
</taxonomicName>
(
<taxonomicName id="4C5B4D60FFCAFFAF270CFDD4FC372341" box="[789,905,583,609]" class="Squamata" family="Viperidae" kingdom="Animalia" pageId="23" pageNumber="216" phylum="Chordata" rank="family">Viperidae</taxonomicName>
).
</paragraph>
<caption id="DF24666BFFCAFFAF248EFA7BFB9F2705" ID-DOI="http://doi.org/10.5281/zenodo.10984587" ID-Zenodo-Dep="10984587" httpUri="https://zenodo.org/record/10984587/files/figure.png" pageId="23" pageNumber="216" startId="23.[151,250,1512,1536]" targetBox="[151,1435,633,1489]" targetPageId="23" targetType="figure">
<paragraph id="8BE436E3FFCAFFAF248EFA7BFB9F2705" blockId="23.[151,1437,1512,1573]" pageId="23" pageNumber="216">
<emphasis id="B92FEAF1FFCAFFAF248EFA7BFEAC2721" bold="true" box="[151,274,1512,1537]" pageId="23" pageNumber="216">FIGURE 8.</emphasis>
Dipterocarp forest and microhabitat of the type locality of
<taxonomicName id="4C5B4D60FFCAFFAF277CFA7AFBF82721" authority="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov, 2024" authorityName="Grismer &amp; Pawangkhanant &amp; Bragin &amp; Trofimets &amp; Nazarov &amp; Suwannapoom &amp; Poyarkov" authorityYear="2024" box="[869,1094,1513,1537]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="23" pageNumber="216" phylum="Chordata" rank="species" species="thalang" status="sp. nov.">
<emphasis id="B92FEAF1FFCAFFAF277CFA7AFBF82721" box="[869,1094,1513,1537]" italics="true" pageId="23" pageNumber="216">Cyrtodactylus thalang</emphasis>
</taxonomicName>
<emphasis id="B92FEAF1FFCAFFAF2055FA7AFB222721" bold="true" box="[1100,1180,1513,1537]" pageId="23" pageNumber="216">
<taxonomicNameLabel id="A21C578AFFCAFFAF2055FA7AFB222721" box="[1100,1180,1513,1537]" pageId="23" pageNumber="216" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
near the Kathu waterfall, border of Thalang and Kathu districts, Phuket Province, Thailand. Photo by N. Poyarkov.
</paragraph>
</caption>
<paragraph id="8BE436E3FFCAFFAF24DEF9C1FE0C2642" blockId="23.[151,1437,1618,2032]" pageId="23" pageNumber="216">
<emphasis id="B92FEAF1FFCAFFAF24DEF9C1FECD274C" bold="true" box="[199,371,1618,1644]" pageId="23" pageNumber="216">Biogeography.</emphasis>
Reconstructing the biogeographic history of any lineage is always problematic in the sense that missing taxa—living or extinct—can limit the accuracy of nodal probability estimates because the phylogenetic placement or the geographic location of any newly added taxon or individual can potentially overturn an entire scenario (see discussion in
<bibRefCitation id="EFCA4B12FFCAFFAF25DEF92FFD0D27F6" author="Grismer, L. L. &amp; Pawangkhanant, P. &amp; Idiiatullina, S. S. &amp; Trofimets, A. V. &amp; Nazarov, R. A. &amp; Suwannapoom, C. &amp; Poyarkov, N. A." box="[455,691,1724,1750]" pageId="23" pageNumber="216" pagination="109 - 136" refId="ref17491" refString="Grismer, L. L., Pawangkhanant, P., Idiiatullina, S. S., Trofimets, A. V., Nazarov, R. A., Suwannapoom, C. &amp; Poyarkov, N. A. (2023 d) A new species of Cyrtodactylus Gray, 1827 (Squamata: Gekkonidae) from the Thai-Malay Peninsula and the independent evolution of cave ecomorphology on opposite sides of the Gulf of Thailand. Zootaxa, 5352 (1), 109 - 136. https: // doi. org / 10.11646 / zootaxa. 5352.1.4" type="journal article" year="2023">
Grismer
<emphasis id="B92FEAF1FFCAFFAF2630F92EFDDF27F6" box="[553,609,1724,1750]" italics="true" pageId="23" pageNumber="216">et al.</emphasis>
2023d
</bibRefCitation>
). This potential instability is even more likely in the
<taxonomicName id="4C5B4D60FFCAFFAF20E4F92FFA2227F6" box="[1277,1436,1724,1750]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="23" pageNumber="216" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFCAFFAF20E4F92FFA2227F6" box="[1277,1436,1724,1750]" italics="true" pageId="23" pageNumber="216">brevipalmatus</emphasis>
</taxonomicName>
group given that there are unsampled lineages of unknown propinquity (
<figureCitation id="13602A66FFCAFFAF27D0F94CFBB427D9" box="[969,1034,1759,1785]" captionStart="FIGURE 1" captionStartId="1.[151,250,1969,1993]" captionTargetBox="[164,1423,343,1943]" captionTargetId="figure-90@1.[164,1423,343,1943]" captionTargetPageId="1" captionText="FIGURE 1. Distribution of the species of the Cyrtodactylus brevipalmatus group. Stars represent type localities. White circles denote unsampled localities known from photos on social media." figureDoi="http://doi.org/10.5281/zenodo.10984566" httpUri="https://zenodo.org/record/10984566/files/figure.png" pageId="23" pageNumber="216">Fig. 1</figureCitation>
) and the likelihood of finding new, isolated upland populations throughout the mountainous regions of Indochina is all but certain. Nonetheless, below is presented the most parsimonious biogeographic scenario based on the data at hand that will form the foundation for subsequent scenarios.
</paragraph>
<paragraph id="8BE436E3FFCAFFA024DEF8FFFDA92711" blockId="23.[151,1437,1618,2032]" lastBlockId="24.[151,1437,151,1585]" lastPageId="24" lastPageNumber="217" pageId="23" pageNumber="216">
The BioGeoBEARS model comparisons recovered the BAYAREALIKE model as the best fit to the data and most likely to infer the best estimates of the ancestral range at each node being that it had the lowest AIC-wt score (
<tableCitation id="C6D90358FFCAFFAF24FDF821FE8426EC" box="[228,314,1970,1996]" captionStart="TABLE 3" captionStartId="24.[151,239,1632,1656]" captionTargetId="graphics-824@24.[151,1437,1733,2016]" captionTargetPageId="24" captionText="TABLE 3. Model testing for the BioGeoBEARS analysis with and without found-event speciation (+J). Models tested: dispersal-extinction-cladogenesis (DEC); Bayesian analysis of biogeography when the number of areas is large (BayArea); and dispersal-vicariance (DIVA). d = rate of dispersal; e = rate of extinction." pageId="23" pageNumber="216">Table 3</tableCitation>
). It is noteworthy, however, that all the trees generated from the other models, generally recovered the same ancestral range at each node, thus converging on the same biogeographical scenario, just with different levels of probability. Overall, the BAYAREALIKE model indicates that speciation within the
<taxonomicName id="4C5B4D60FFC5FFA020ADFF04FAED2191" box="[1204,1363,151,177]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFC5FFA020ADFF04FAED2191" box="[1204,1363,151,177]" italics="true" pageId="24" pageNumber="217">brevipalmatus</emphasis>
</taxonomicName>
group likely progressed as a series of chronological vicariant events from south to north along the Tenasserim Mountains followed by more northerly vicariant events progressing from west to east across northern Indochina (
<figureCitation id="13602A66FFC5FFA0210FFF4EFAE221D7" box="[1302,1372,221,247]" captionStart="FIGURE 2" captionStartId="14.[151,250,1673,1697]" captionTargetBox="[160,1427,462,1642]" captionTargetId="figure-172@14.[151,1436,453,1649]" captionTargetPageId="14" captionText="FIGURE 2. BAYAREALIKE model from the BioGeoBEARS analysis showing the ancestral range probability of each lineage at each node. Numbers at the nodes represent an estimate of the mean divergence time rounded to one significant digit. Map delineates the presence or absence geography file for each species." figureDoi="http://doi.org/10.5281/zenodo.10984568" httpUri="https://zenodo.org/record/10984568/files/figure.png" pageId="24" pageNumber="217">Fig. 2</figureCitation>
). The ancestor of the
<taxonomicName id="4C5B4D60FFC5FFA02552FE93FE40203A" authorityName="Grismer, Wood Jr, Thura, Zin, Quah, Murdoch, Grismer, Lin, Kyaw &amp; Lwin" authorityYear="2017" box="[331,510,256,282]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="shwetaungorum">
<emphasis id="B92FEAF1FFC5FFA02552FE93FE40203A" box="[331,510,256,282]" italics="true" pageId="24" pageNumber="217">shwetaungorum</emphasis>
</taxonomicName>
and
<taxonomicName id="4C5B4D60FFC5FFA02620FE93FD66203A" box="[569,728,256,282]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFC5FFA02620FE93FD66203A" box="[569,728,256,282]" italics="true" pageId="24" pageNumber="217">brevipalmatus</emphasis>
</taxonomicName>
groups (A1) originated somewhere in the contiguous regions of the
<collectingRegion id="499FF801FFC5FFA024C6FEB0FEA9201D" box="[223,279,291,317]" country="Myanmar" name="Shan" pageId="24" pageNumber="217">Shan</collectingRegion>
Plateau and Tenasserim Mountains prior to 22.2 mybp. At approximately 22.2 mybp, A1 diverged into the
<taxonomicName id="4C5B4D60FFC5FFA024DBFED4FECB2041" authorityName="Grismer, Wood Jr, Thura, Zin, Quah, Murdoch, Grismer, Lin, Kyaw &amp; Lwin" authorityYear="2017" box="[194,373,327,353]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="shwetaungorum">
<emphasis id="B92FEAF1FFC5FFA024DBFED4FECB2041" box="[194,373,327,353]" italics="true" pageId="24" pageNumber="217">shwetaungorum</emphasis>
</taxonomicName>
group which remained on the
<collectingRegion id="499FF801FFC5FFA026CBFED4FCB42041" box="[722,778,327,353]" country="Myanmar" name="Shan" pageId="24" pageNumber="217">Shan</collectingRegion>
Plateau in eastern
<collectingCountry id="F34C7673FFC5FFA027FAFED4FBEE2041" box="[995,1104,327,353]" name="Myanmar" pageId="24" pageNumber="217">Myanmar</collectingCountry>
and the
<taxonomicName id="4C5B4D60FFC5FFA020AAFED4FAEC2041" box="[1203,1362,327,353]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFC5FFA020AAFED4FAEC2041" box="[1203,1362,327,353]" italics="true" pageId="24" pageNumber="217">brevipalmatus</emphasis>
</taxonomicName>
group which spread south along the growing uplands of the Tenasserim Mountains (
<bibRefCitation id="EFCA4B12FFC5FFA027EAFEF9FB0920A5" author="Upton, D. R. &amp; Bristow, C. S. &amp; Hurford, A. J." box="[1011,1207,362,389]" pageId="24" pageNumber="217" refId="ref21018" refString="Upton, D. R., Bristow, C. S. &amp; Hurford, A. J. (1995) The denudational history of western Thailand using apatite fission track analysis: implications for the tectonic models of SE Asia. Journal of Geology, Geological Survey of Vietnam, Hanoi, Series B, 322." type="book" year="1995">
Upton
<emphasis id="B92FEAF1FFC5FFA02026FEF8FBC820A4" box="[1087,1142,362,388]" italics="true" pageId="24" pageNumber="217">et al.</emphasis>
1995
</bibRefCitation>
,
<bibRefCitation id="EFCA4B12FFC5FFA020D8FEF9FB4420A4" author="Upton, D. R. &amp; Bristow, C. S. &amp; Hurford, A. J. &amp; Carter, A." box="[1217,1274,362,388]" pageId="24" pageNumber="217" pagination="421 - 431" refId="ref21078" refString="Upton, D. R., Bristow, C. S., Hurford, A. J. &amp; Carter, A. (1997) Tertiary tectonic denudation in Northwestern Thailand: provisionary results from apatite fission track analysis. Proceedings of the International Conference of Stratigraphy and Tectonic Evolution in Southeast Asia and the South Pacific and Associated Meeting of the IGCP 359 and IGCP 383, Bangkok, Thailand, 1, 421 - 431." type="journal article" year="1997">1997</bibRefCitation>
) along what is today the Thai-Malay Peninsula and thence east, through the hilly areas of northern Indochina. By ~ 20.1 mybp, the ancestor of the
<taxonomicName id="4C5B4D60FFC5FFA02558FE23FE5E20EA" box="[321,480,432,458]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFC5FFA02558FE23FE5E20EA" box="[321,480,432,458]" italics="true" pageId="24" pageNumber="217">brevipalmatus</emphasis>
</taxonomicName>
group (A2) diverged into
<taxonomicName id="4C5B4D60FFC5FFA0271BFE22FCEF20EA" authorityName="Dring" authorityYear="1979" box="[770,849,432,459]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="elok">
<emphasis id="B92FEAF1FFC5FFA0271BFE22FCEF20EA" box="[770,849,432,459]" italics="true" pageId="24" pageNumber="217">C. elok</emphasis>
</taxonomicName>
in the southern portion of the Tenasserim Mountains and the ancestor (A3) of the remaining species. At 14.6 mybp, additional speciation events in the southern section of the Tenasserim Mountains along the Thai-Malay Peninsula resulted in the divergence of A3 into the
<taxonomicName id="4C5B4D60FFC5FFA020E4FE64FA222331" box="[1277,1436,503,529]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFC5FFA020E4FE64FA222331" box="[1277,1436,503,529]" italics="true" pageId="24" pageNumber="217">brevipalmatus</emphasis>
</taxonomicName>
lineage south of the Khlong-Marul Fault and the ancestor (A4) of the remaining species in Indochina. It is tempting to invoke the formation of the Isthmus of Kra region and one of its many inundations near the Khlong-Marul Fault to account for this cladogenic event given it has been responsible for divergences in this region for a vast taxonomic array of lineages (e.g.
<bibRefCitation id="EFCA4B12FFC5FFA0258DFD10FDD323BE" author="Hughes, J. B. &amp; Round, P. D. &amp; Woodruff, D. S." box="[404,621,643,670]" pageId="24" pageNumber="217" pagination="569 - 580" refId="ref18666" refString="Hughes, J. B., Round, P. D. &amp; Woodruff, D. S. (2003) The Indochinese-Sundaic faunal transition at the Isthmus of Kra: an analysis of resident forest bird species distributions. Journal of Biogeography, 30, 569 - 580. https: // doi. org / 10.1046 / j. 1365 - 2699.2003.00847. x" type="journal article" year="2003">
Hughes
<emphasis id="B92FEAF1FFC5FFA025EBFD17FD9523BD" box="[498,555,643,669]" italics="true" pageId="24" pageNumber="217">et al.</emphasis>
2003
</bibRefCitation>
;
<bibRefCitation id="EFCA4B12FFC5FFA02663FD10FCD823BE" author="de Bruyn, M. &amp; Nugroho, E. &amp; Hossain, Md. M. &amp; Wilson, J. C. &amp; Mather, P. B." box="[634,870,643,670]" pageId="24" pageNumber="217" pagination="370 - 378" refId="ref16818" refString="de Bruyn, M., Nugroho, E., Hossain, Md. M., Wilson, J. C. &amp; Mather, P. B. (2004) Phylogeographic evidence for the existence of an ancient biogeographic barrier: the Isthmus of Kra Seaway. Heredity, 94, 370 - 378. https: // doi. org / 10.1038 / sj. hdy. 6800613" type="journal article" year="2004">
de Bruyn
<emphasis id="B92FEAF1FFC5FFA026F3FD17FC9D23BD" box="[746,803,643,669]" italics="true" pageId="24" pageNumber="217">et al.</emphasis>
2004
</bibRefCitation>
;
<bibRefCitation id="EFCA4B12FFC5FFA0276BFD10FBDC23BE" author="Bernstein, J. M. &amp; de Souza, H. F. &amp; Murphy, J. C. &amp; Voris, H. K. &amp; Brown, R. M. &amp; Myers, E. A. &amp; Harrington, S. &amp; Shanker, K. &amp; Ruane, S." box="[882,1122,643,670]" pageId="24" pageNumber="217" pagination="1 - 24" refId="ref16270" refString="Bernstein, J. M., de Souza, H. F., Murphy, J. C., Voris, H. K., Brown, R. M., Myers, E. A., Harrington, S., Shanker, K. &amp; Ruane, S. (2023) Phylogenomics of Fresh and Formalin Specimens Resolves the Systematics of Old World Mud Snakes (Serpentes: Homalopsidae) and Expands Biogeographic Inference. Bulletin of the Society of Systematic Biology, 2 (1), 1 - 24. https: // doi. org / 10.18061 / bssb. v 2 i 1.9393" type="journal article" year="2023">
Bernstein
<emphasis id="B92FEAF1FFC5FFA027FCFD17FBA023BD" box="[997,1054,643,669]" italics="true" pageId="24" pageNumber="217">et al.</emphasis>
2023
</bibRefCitation>
). However, during this time period (Middle Miocene) there was no isthmus, and the entire western section of the Sunda Shelf was exposed (
<bibRefCitation id="EFCA4B12FFC5FFA02175FD34FF6A23C4" author="Hall, R." pageId="24" pageNumber="217" pagination="1 - 17" refId="ref18467" refString="Hall, R. (2013) The paleogeography of Sundaland and Wallacea since the Late Jurassic. Journal of Limnology, 72, 1 - 17. https: // doi. org / 10.4081 / jlimnol. 2013. s 2. e 1" type="journal article" year="2013">Hall 2013</bibRefCitation>
). A4 began diverging in a series of chronological events along the Tenasserim Mountains from south to north across the Miocene/Pliocene border from approximately 8.54.7 mybp giving rise to a southern clade composed of
<taxonomicName id="4C5B4D60FFC5FFA0248EFC82FEF0220A" authorityName="Grismer, Aowphol, Yodthong, Ampai, Termprayoon, Aksornneam &amp; Rujirawan" authorityYear="2022" box="[151,334,784,811]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="kochangensis">
<emphasis id="B92FEAF1FFC5FFA0248EFC82FEF0220A" box="[151,334,784,811]" italics="true" pageId="24" pageNumber="217">C. kochangensis</emphasis>
</taxonomicName>
and the sister species
<taxonomicName id="4C5B4D60FFC5FFA0265DFC82FD64220A" box="[580,730,784,811]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="rukhadeva">
<emphasis id="B92FEAF1FFC5FFA0265DFC82FD64220A" box="[580,730,784,811]" italics="true" pageId="24" pageNumber="217">C. rukhadeva</emphasis>
</taxonomicName>
and
<taxonomicName id="4C5B4D60FFC5FFA02716FC82FC31220A" box="[783,911,784,811]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="rivularis">
<emphasis id="B92FEAF1FFC5FFA02716FC82FC31220A" box="[783,911,784,811]" italics="true" pageId="24" pageNumber="217">C. rivularis</emphasis>
</taxonomicName>
at approximately 6.4 mybp. This was followed sequentially by evolution of
<taxonomicName id="4C5B4D60FFC5FFA025C8FCA7FDDC226D" authorityName="Grismer, Aowphol, Yodthong, Ampai, Termprayoon, Aksornneam &amp; Rujirawan" authorityYear="2022" box="[465,610,819,846]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="fluvicavus">
<emphasis id="B92FEAF1FFC5FFA025C8FCA7FDDC226D" box="[465,610,819,846]" italics="true" pageId="24" pageNumber="217">C. fluvicavus</emphasis>
</taxonomicName>
and the sister species
<taxonomicName id="4C5B4D60FFC5FFA0274BFCA7FC44226D" authorityName="Chomdej, Suwannapoom, Pradit, Phupanbai &amp; Grismer" authorityYear="2023" box="[850,1018,819,846]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="denticulatus">
<emphasis id="B92FEAF1FFC5FFA0274BFCA7FC44226D" box="[850,1018,819,846]" italics="true" pageId="24" pageNumber="217">C. denticulatus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C5B4D60FFC5FFA02034FCA7FA92226D" authorityName="Grismer, Rujirawan, Chomdej, Suwannapoom, Yodthong, Aksornneam &amp; Aowphol" authorityYear="2023" box="[1069,1324,819,846]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="thongphaphumensis">
<emphasis id="B92FEAF1FFC5FFA02034FCA7FA92226D" box="[1069,1324,819,846]" italics="true" pageId="24" pageNumber="217">C. thongphaphumensis</emphasis>
</taxonomicName>
, followed by ancestor A7 at approximately 4.7 mybp—the latter forming an eastern clade containing five or six species. This series of divergent events from the Middle Miocene onward may be the result of continued orogeny along the Thai-Malay Peninsula coupled with weak but cyclical climatic fluctuations (
<bibRefCitation id="EFCA4B12FFC5FFA02027FC0EFA952297" author="Lohman, D. J. &amp; de Bruyn, M. &amp; Page, T. &amp; von Rintelen, K. &amp; Hall, R. &amp; Ng, P. K. L. &amp; Shih, H. T. &amp; Carvalho, G. R. &amp; von Rintelen, T." box="[1086,1323,925,951]" pageId="24" pageNumber="217" pagination="205 - 226" refId="ref19200" refString="Lohman, D. J., de Bruyn, M., Page, T., von Rintelen, K., Hall, R., Ng, P. K. L., Shih, H. T., Carvalho, G. R. &amp; von Rintelen, T. (2011) Biogeography of the Indo-Australian archipelago. Annual Review of Evolution, Ecology and Systematics, 42, 205 - 226. https: // doi. org / 10.1146 / annurev-ecolsys- 102710 - 145001" type="journal article" year="2011">
Lohman
<emphasis id="B92FEAF1FFC5FFA020B0FC0DFB5B2297" box="[1193,1253,925,951]" italics="true" pageId="24" pageNumber="217">et al.</emphasis>
2011
</bibRefCitation>
), creating cooler upland refugia where most of these species are now restricted. Currently, the eastern clade ranges across central and eastern Indochina, northeast of the Chao Phraya Basin and north and east of the
<collectingRegion id="499FF801FFC5FFA020ACFC70FABD22DD" box="[1205,1283,995,1021]" country="Thailand" name="Nakhon Ratchasima" pageId="24" pageNumber="217">Khorat</collectingRegion>
Plateau—the exception being
<taxonomicName id="4C5B4D60FFC5FFA02548FB94FE5A2501" authorityName="Grismer, Aowphol, Yodthong, Ampai, Termprayoon, Aksornneam &amp; Rujirawan" authorityYear="2022" box="[337,484,1031,1057]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="uthaiensis">
<emphasis id="B92FEAF1FFC5FFA02548FB94FE5A2501" box="[337,484,1031,1057]" italics="true" pageId="24" pageNumber="217">C. uthaiensis</emphasis>
</taxonomicName>
which is restricted to an isolated karst hill in the lower Chao Phraya Basin (
<bibRefCitation id="EFCA4B12FFC5FFA02126FB94FE9D2564" author="Grismer, L. L. &amp; Rujirawan, A. &amp; Chomdej, S. &amp; Suwannapoom, C. &amp; Yodthong, S. &amp; Aksornneam, A. &amp; Aowphol, A." pageId="24" pageNumber="217" pagination="93 - 118" refId="ref17595" refString="Grismer, L. L., Rujirawan, A., Chomdej, S., Suwannapoom, C., Yodthong, S., Aksornneam, A. &amp; Aowphol, A. (2023 b) A new species of the Cyrtodactylus brevipalmatus group (Squamata; Gekkonidae) from the uplands of western Thailand. ZooKeys, 1141, 93 - 118. https: // doi. org / 10.3897 / zookeys. 1141.97624" type="journal article" year="2023">
Grismer
<emphasis id="B92FEAF1FFC5FFA0248EFBB8FF6E2564" box="[151,208,1066,1092]" italics="true" pageId="24" pageNumber="217">et al.</emphasis>
2023b
</bibRefCitation>
). The eastern clade comprises monophyletic southwestern and northeastern lineages. The presence of
<taxonomicName id="4C5B4D60FFC5FFA0248EFBDEFE922547" authorityName="Grismer, Aowphol, Yodthong, Ampai, Termprayoon, Aksornneam &amp; Rujirawan" authorityYear="2022" box="[151,300,1101,1127]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="uthaiensis">
<emphasis id="B92FEAF1FFC5FFA0248EFBDEFE922547" box="[151,300,1101,1127]" italics="true" pageId="24" pageNumber="217">C. uthaiensis</emphasis>
</taxonomicName>
in the Chao Phraya Basin suggests that the eastern clade likely ranged across the basin prior to its current physiography. The divergence of A6 at approximately 4.7 mybp, coincides with of the basins Early Pliocene formation from an increase in riverine deltaic sediments in the north (
<bibRefCitation id="EFCA4B12FFC5FFA02781FB00FBED258E" author="Choowong, M." box="[920,1107,1171,1198]" pageId="24" pageNumber="217" pagination="335 - 350" refId="ref16683" refString="Choowong, M. (2011) Quaternary. In: Ridd, M. F., Barber, A. J. &amp; Crow, M. J. (Eds.), The Geology of Thailand. The Geological Society of London, London, pp. 335 - 350. https: // doi. org / 10.1144 / GOTH. 12" type="book chapter" year="2011">Choowong 2011</bibRefCitation>
) and marine sedimentation in the south (
<bibRefCitation id="EFCA4B12FFC5FFA02515FB24FDB925F1" author="Choowong, M. &amp; Ugai, H. &amp; Charoentitirat, T. &amp; Charusiri, P. &amp; Daorerk, V. &amp; Songmuang, R. &amp; Ladachart, R." box="[268,519,1207,1233]" pageId="24" pageNumber="217" pagination="1 - 18" refId="ref16750" refString="Choowong, M., Ugai, H., Charoentitirat, T., Charusiri, P., Daorerk, V., Songmuang, R. &amp; Ladachart, R. (2004) Holocene biostratigraphical records in coastal depositis from Sam Roi Yod National Park, Prachuap Khiri Khan, western Thailand. Journal of Chulalongkorn University, 4, 1 - 18." type="journal article" year="2004">
Choowong
<emphasis id="B92FEAF1FFC5FFA02589FB24FE7625F1" box="[400,456,1207,1233]" italics="true" pageId="24" pageNumber="217">et al.</emphasis>
2004
</bibRefCitation>
)—ultimately morphing into a wide area of uninhabitable terrain for the particular ecological requirements of these specialized arboreal upland species. North of Chao Phraya Basin in
<collectingCountry id="F34C7673FFC5FFA02111FB49FAD025D4" box="[1288,1390,1242,1268]" name="Thailand" pageId="24" pageNumber="217">Thailand</collectingCountry>
, the eastern clade is separated from the remaining species of the
<taxonomicName id="4C5B4D60FFC5FFA02758FB6EFC5E2437" box="[833,992,1277,1303]" class="Squamata" family="Gekkonidae" genus="Cyrtodactylus" kingdom="Animalia" pageId="24" pageNumber="217" phylum="Chordata" rank="species" species="brevipalmatus">
<emphasis id="B92FEAF1FFC5FFA02758FB6EFC5E2437" box="[833,992,1277,1303]" italics="true" pageId="24" pageNumber="217">brevipalmatus</emphasis>
</taxonomicName>
group by four major river systems: the Ping, Wang, Nom, and
<collectingRegion id="499FF801FFC5FFA025B9FAB3FE71241A" box="[416,463,1312,1338]" country="Thailand" name="Nan" pageId="24" pageNumber="217">Nan</collectingRegion>
—all of which drain into the upper reaches of the Chao Phraya Basin and converge in its central section in Nakkon Sawan Province. At approximately 3.4 mybp, the ancestor of the eastern clade (A7) diverged into the southwestern and northeastern lineages. These lineages are narrowly separated along the northern portion of the Pa Sak River Valley in
<collectingRegion id="499FF801FFC5FFA02655FA19FD712484" box="[588,719,1418,1444]" country="Thailand" name="Phetchabun" pageId="24" pageNumber="217">Phetchabun</collectingRegion>
Mountains of
<collectingRegion id="499FF801FFC5FFA02760FA19FBA72484" box="[889,1049,1418,1444]" country="Thailand" name="Loei" pageId="24" pageNumber="217">Loei Province</collectingRegion>
in northern
<collectingCountry id="F34C7673FFC5FFA020B1FA19FAB12484" box="[1192,1295,1418,1444]" name="Thailand" pageId="24" pageNumber="217">Thailand</collectingCountry>
. Divergence within these lineages was recent and likely commensurate with cyclical glacioeustatic temperature changes, forcing the retreat and subsequent isolation of these species to cooler mesic upland refugia which has been reported for a number of species across the sky island archipelagos of Indochina (
<bibRefCitation id="EFCA4B12FFC5FFA0278AFA60FBFD272E" author="Woodruff, D. S." box="[915,1091,1523,1550]" pageId="24" pageNumber="217" pagination="919 - 941" refId="ref21352" refString="Woodruff, D. S. (2010) Biogeography and conservation in Southeast Asia: how 2.7 million years of repeated environmental fluctuations affect today's patterns and the future of the remaining refugial-phase biodiversity. Biodiversity Conservation, 19, 919 - 941. https: // doi. org / 10.1007 / s 10531 - 010 - 9783 - 3" type="journal article" year="2010">Woodruff 2010</bibRefCitation>
;
<bibRefCitation id="EFCA4B12FFC5FFA02057FA60FA99272E" author="Hughes, J. B. &amp; Round, P. D. &amp; Woodruff, D. S." box="[1102,1319,1523,1550]" pageId="24" pageNumber="217" pagination="569 - 580" refId="ref18666" refString="Hughes, J. B., Round, P. D. &amp; Woodruff, D. S. (2003) The Indochinese-Sundaic faunal transition at the Isthmus of Kra: an analysis of resident forest bird species distributions. Journal of Biogeography, 30, 569 - 580. https: // doi. org / 10.1046 / j. 1365 - 2699.2003.00847. x" type="journal article" year="2003">
Hughes
<emphasis id="B92FEAF1FFC5FFA020B5FA67FB5B272D" box="[1196,1253,1523,1549]" italics="true" pageId="24" pageNumber="217">et al.</emphasis>
2003
</bibRefCitation>
;
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