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<document id="3D6B6489DDAEDAB6A88F4B2FA7AE5025" ID-ISSN="0003-0090" IM.materialsCitations_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1630255363242" checkinUser="felipe" docAuthor="Myers, C. W. &amp; Donnelly, M. A." docDate="2008" docId="03A2FB55FFF0FFB0FF49988DFC34FE82" docLanguage="en" docName="B308.pdf" docOrigin="Bulletin of the American Museum of Natural History 2008 (308)" docStyle="DocumentStyle:2B34016C1EBFE58B07368F9517618743.3:BulAmeMusNatHis.2000-2010.journal_article.0cover.type1" docStyleId="2B34016C1EBFE58B07368F9517618743" docStyleName="BulAmeMusNatHis.2000-2010.journal_article.0cover.type1" docStyleVersion="3" docTitle="Chironius fuscus" docType="treatment" docVersion="2" lastPageNumber="123" masterDocId="FF9B832DFF88FFCAFFAF9C50FFD1FFC0" masterDocTitle="The Summit Herpetofauna Of Auyantepui, Venezuela: Report From The Robert G. Goelet American Museum-Terramar Expedition" masterLastPageNumber="147" masterPageNumber="1" pageNumber="121" updateTime="1699198799132" updateUser="plazi" zenodo-license-document="CC-BY-4.0">
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<mods:title id="BC2A164B0D869D415FBC869D880B152B">The Summit Herpetofauna Of Auyantepui, Venezuela: Report From The Robert G. Goelet American Museum-Terramar Expedition</mods:title>
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<paragraph id="8BB44A43FFF0FFB2FF49988DFE6EFAD1" blockId="120.[230,552,1245,1298]" pageId="120" pageNumber="121">
<heading id="D0FCFD2FFFF0FFB2FF49988DFE6EFAD1" centered="true" fontSize="9" level="2" pageId="120" pageNumber="121" reason="2">
<taxonomicName id="4C0B31C0FFF0FFB2FF49988DFDF9FB34" authority="(Linnaeus)" baseAuthorityName="Linnaeus" baseAuthorityYear="1758" box="[230,552,1245,1268]" class="Reptilia" family="Colubridae" genus="Chironius" kingdom="Animalia" order="Squamata" pageId="120" pageNumber="121" phylum="Chordata" rank="species" species="fuscus">
<emphasis id="B97F9651FFF0FFB2FF49988DFE70FB33" box="[230,417,1245,1268]" italics="true" pageId="120" pageNumber="121">Chironius fuscus</emphasis>
(Linnaeus)
</taxonomicName>
<figureCitation id="133056C6FFF0FFB2FEE198ACFE6EFAD1" box="[334,447,1276,1298]" captionStart="Fig" captionStartId="121.[116,155,1646,1665]" captionTargetBox="[252,1033,210,1615]" captionTargetId="figure-1@121.[252,1033,210,1615]" captionTargetPageId="121" captionText="Fig. 73. Chironius fuscus (Linnaeus), ×0.7; the species is broadly distributed in the lowlands of northern South America. This specimen (BMNH 1976.235, subadult ♀) was caught on the summit of Auyantepui in August 1974; a shed skin found in 1994 indicates a possibly persistent presence of this racer on the Auyán summit." pageId="120" pageNumber="121">Figure 73</figureCitation>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C31119C8FFF0FFB2FF2F9978FE30FA1F" pageId="120" pageNumber="121" type="reference_group">
<paragraph id="8BB44A43FFF0FFB2FF2F9978FE83FA98" blockId="120.[128,654,1320,1504]" pageId="120" pageNumber="121">
<taxonomicName id="4C0B31C0FFF0FFB2FF2F9978FDF7FAFC" authority="Linnaeus, 1758: 222 - 223" authorityName="Linnaeus" authorityPageNumber="222 - 223" authorityYear="1758" box="[128,550,1320,1340]" class="Reptilia" family="Colubridae" genus="Coluber" kingdom="Animalia" order="Squamata" pageId="120" pageNumber="121" phylum="Chordata" rank="species" species="fuscus">
<emphasis id="B97F9651FFF0FFB2FF2F9978FEC6FAFC" box="[128,279,1320,1340]" italics="true" pageId="120" pageNumber="121">Coluber fuscus</emphasis>
Linnaeus, 1758: 222223
</taxonomicName>
.
<emphasis id="B97F9651FFF0FFB2FD919978FD5CFAFC" box="[574,653,1320,1340]" italics="true" pageId="120" pageNumber="121">Habitat</emphasis>
in Asia in error.
</paragraph>
<paragraph id="8BB44A43FFF0FFB2FF2F990FFE30FA1F" blockId="120.[128,654,1320,1504]" pageId="120" pageNumber="121">
<taxonomicName id="4C0B31C0FFF0FFB2FF2F990FFE2EFAB3" authority=": Roze, 1966: 97" authorityName="Roze" authorityPageNumber="97" authorityYear="1966" box="[128,511,1375,1395]" class="Reptilia" family="Colubridae" genus="Chironius" kingdom="Animalia" order="Squamata" pageId="120" pageNumber="121" phylum="Chordata" rank="species" species="fuscus">
<emphasis id="B97F9651FFF0FFB2FF2F990FFEE3FAB3" box="[128,306,1375,1395]" italics="true" pageId="120" pageNumber="121">Chironius fuscus</emphasis>
:
<materialsCitation id="3B63401EFFF0FFB2FEE49930FE2EFAB3" box="[331,511,1376,1395]" collectionCode="BMNH" elevation="2283" pageId="120" pageNumber="121" specimenCount="1">Roze, 1966: 97</materialsCitation>
</taxonomicName>
. Peters and Orejas-Miranda, 1970: 60.
<bibRefCitation id="EF9A37B2FFF0FFB2FE6F992BFF10FA69" author="Dixon, James &amp; John A. Wiest, Jr &amp; Jose M. Cei" pageId="120" pageNumber="121" refId="ref82397" refString="Dixon, James R, John A. Wiest, Jr, and Jose M. Cei. 1993. Revision of the Neotropical snake genus Chironius Fitzinger (Serpentes, Colubridae). Museo Regionale di Scienze Naturali (Turin), Monografie 8, 279 pp." type="book" year="1993">Dixon et al., 1993: 113</bibRefCitation>
, 261 (generic revision; BMNH specimen listed from south side Auyantepui,
<quantity id="4CF3E7A6FFF0FFB2FDB199E1FDBBFA05" box="[542,618,1457,1477]" metricMagnitude="3" metricUnit="m" metricValue="2.283" pageId="120" pageNumber="121" unit="m" value="2283.0">
<elevation id="0026AD70FFF0FFB2FDB199E1FDBBFA05" box="[542,618,1457,1477]" metricMagnitude="3" metricUnit="m" metricValue="2.283" pageId="120" pageNumber="121" unit="m" value="2283.0">2283 m</elevation>
</quantity>
[in error for
<quantity id="4CF3E7A6FFF0FFB2FF52999CFE9FFA1F" box="[253,334,1484,1503]" metricMagnitude="3" metricUnit="m" metricValue="2.08788" pageId="120" pageNumber="121" unit="ft" value="6850.0">
<elevation id="0026AD70FFF0FFB2FF52999CFE9FFA1F" box="[253,334,1484,1503]" metricMagnitude="3" metricUnit="m" metricValue="2.08788" pageId="120" pageNumber="121" unit="ft" value="6850.0">6850 ft.</elevation>
</quantity>
5
<quantity id="4CF3E7A6FFF0FFB2FEDD999CFE12FA1F" box="[370,451,1484,1503]" metricMagnitude="3" metricUnit="m" metricValue="2.088" pageId="120" pageNumber="121" unit="m" value="2088.0">
<elevation id="0026AD70FFF0FFB2FEDD999CFE12FA1F" box="[370,451,1484,1503]" metricMagnitude="3" metricUnit="m" metricValue="2.088" pageId="120" pageNumber="121" unit="m" value="2088.0">2088 m</elevation>
</quantity>
]).
</paragraph>
</subSubSection>
<subSubSection id="C31119C8FFF0FFB0FF3399A7FDCCFCD7" lastPageId="122" lastPageNumber="123" pageId="120" pageNumber="121" type="materials_examined">
<paragraph id="8BB44A43FFF0FFB2FF3399A7FF7CF91F" blockId="120.[128,654,1527,1759]" pageId="120" pageNumber="121">
<collectionCode id="ED1AD286FFF0FFB2FF3399A7FECCF9CD" box="[156,285,1527,1551]" pageId="120" pageNumber="121">MATERIAL</collectionCode>
: Southern side of Auyantepui (below final cliff face),
<quantity id="4CF3E7A6FFF0FFB2FE139A46FDC4F9EC" box="[444,533,1558,1580]" metricMagnitude="3" metricUnit="m" metricValue="2.08788" pageId="120" pageNumber="121" unit="ft" value="6850.0">6850 ft.</quantity>
[
<quantity id="4CF3E7A6FFF0FFB2FD889A47FD53F9ED" box="[551,642,1558,1581]" metricMagnitude="3" metricUnit="m" metricValue="2.088" pageId="120" pageNumber="121" unit="m" value="2088.0">2088 m</quantity>
]:
<collectionCode id="ED1AD286FFF0FFB2FF2F9A65FF0BF98A" box="[128,218,1589,1610]" pageId="120" pageNumber="121">BMNH</collectionCode>
1976.235, collected by Adrian Warren,
<date id="FFB56C83FFF0FFB2FF6F9A02FE46F9A7" box="[192,407,1618,1639]" pageId="120" pageNumber="121" value="1974-08-17">August 17, 1974</date>
. Camp 3, 1850 m:
<collectionCode id="ED1AD286FFF0FFB2FF2F9A20FF0CF945" box="[128,221,1648,1669]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34925" lsid="urn:lsid:biocol.org:col:34925" name="American Museum of Natural History" pageId="120" pageNumber="121">AMNH</collectionCode>
R-155717 (fragment of shed skin, tentatively identified), from the 1994
<collectionCode id="ED1AD286FFF0FFB2FF2F9AFBFF0DF900" box="[128,220,1707,1728]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34925" lsid="urn:lsid:biocol.org:col:34925" name="American Museum of Natural History" pageId="120" pageNumber="121">AMNH</collectionCode>
TERRAMAR Expedition to Auyantepui.
</paragraph>
<paragraph id="8BB44A43FFF0FFB2FD749FA2FB1DF9B9" blockId="120.[701,1228,1010,1657]" pageId="120" pageNumber="121">
The one whole summit specimen (fig. 73) is a female, probably subadult,
<quantity id="4CF3E7A6FFF0FFB2FB819840FB5CFBE5" box="[1070,1165,1040,1061]" metricMagnitude="-1" metricUnit="m" metricValue="9.37" pageId="120" pageNumber="121" unit="mm" value="937.0">937 mm</quantity>
total length,
<quantity id="4CF3E7A6FFF0FFB2FCB5987EFCABFB83" box="[794,890,1070,1091]" metricMagnitude="-1" metricUnit="m" metricValue="2.79" pageId="120" pageNumber="121" unit="mm" value="279.0">279 mm</quantity>
tail length (29.8
<emphasis id="B97F9651FFF0FFB2FBE6987EFBB0FB83" box="[1097,1121,1070,1091]" italics="true" pageId="120" pageNumber="121">%</emphasis>
of total length). Dorsal scales completely smooth except for a few weak anal ridges laterally above cloacal region, in 10-10-10 rows; apical pits absent. Ventrals 158, subcaudals 103, paired; anal plate entire. Supralabials 9/8, 2nd3rd touching loreal, 4th6th in eye; infralabials 8, first five touching anterior genials. Preoculars 1, postoculars 2. Temporals 1 + 1. About 41 maxillary teeth on right. Color in preservative indistinctly marked with dark gray transverse bands; the bands are separated by white middorsal scales anteriorly on the body and by whitish transverse lines posteriorly. These markings along with black scale edges and small spots give an overall mottled appearance of gray, black, and white (fig. 73 top).34 Supralabials mostly yellowish white, with labials 23 having dark posterior edges. An ill-defined
</paragraph>
<paragraph id="8BB44A43FFF0FFB2FD7B9AC7FCD5F91E" blockId="120.[701,1228,1687,1758]" pageId="120" pageNumber="121">34 Some remaining patches of stratum corneum suggest that the living coloration is in shades of brown.</paragraph>
<caption id="DF741ACBFFF1FFB3FFDB9A3EFE9DF911" pageId="121" pageNumber="122" startId="121.[116,155,1646,1665]" targetBox="[252,1033,210,1615]" targetPageId="121">
<paragraph id="8BB44A43FFF1FFB3FFDB9A3EFE9DF911" blockId="121.[93,1193,1645,1745]" pageId="121" pageNumber="122">
Fig. 73.
<taxonomicName id="4C0B31C0FFF1FFB3FF4E9A3DFDDCF941" authority="(Linnaeus)" baseAuthorityName="Linnaeus" baseAuthorityYear="1758" box="[225,525,1645,1665]" class="Reptilia" family="Colubridae" genus="Chironius" kingdom="Animalia" order="Squamata" pageId="121" pageNumber="122" phylum="Chordata" rank="species" species="fuscus">
<emphasis id="B97F9651FFF1FFB3FF4E9A3DFE5FF941" box="[225,398,1645,1665]" italics="true" pageId="121" pageNumber="122">Chironius fuscus</emphasis>
(Linnaeus)
</taxonomicName>
, ×0.7; the species is broadly distributed in the lowlands of northern South America. This specimen (BMNH 1976.235, subadult ♀) was caught on the summit of Auyantepui in August 1974; a shed skin found in 1994 indicates a possibly persistent presence of this racer on the Auyán summit.
</paragraph>
</caption>
<paragraph id="8BB44A43FFF2FFB0FF2F9C85FF37FE77" blockId="122.[128,654,213,791]" pageId="122" pageNumber="123">black postocular stripe extending from eye across lower part of primary temporal and upper part of ultimate supralabial. Underside of head immaculate yellowish white; black transverse lines across bases of anterior ventrals, these lines becoming heavier, with intervening black spots posteriorly (fig. 73 bottom).</paragraph>
<paragraph id="8BB44A43FFF2FFB0FF329D90FDCCFCD7" blockId="122.[128,654,213,791]" pageId="122" pageNumber="123">The fragment of shed skin is from a small snake of juvenile size. The scales are relatively large, in 10 rows anteriorly, eight rows posteriorly; no keeled scales are discernible; apical pits absent over most of body, but relatively large pits are present on some scales posteriorly on the neck, with paired pits being more common than single ones. The eyes are relatively large; there are two postoculars and 1 + 2 temporals; both postocular scales are in contact with the primary temporal. Anal plate torn.</paragraph>
</subSubSection>
<subSubSection id="C31119C8FFF2FFB0FEE19F15FC34FE82" pageId="122" pageNumber="123" type="discussion">
<paragraph id="8BB44A43FFF2FFB0FEE19F15FE11FC99" blockId="122.[334,448,837,858]" box="[334,448,837,858]" pageId="122" pageNumber="123">REMARKS</paragraph>
<paragraph id="8BB44A43FFF2FFB0FF329F28FF09FA17" blockId="122.[128,654,888,1759]" pageId="122" pageNumber="123">
The shed skin from Camp 3 is fragmentary but identifiable to genus and may also represent
<taxonomicName id="4C0B31C0FFF2FFB0FEAE9FE2FE1AFC08" baseAuthorityName="Linnaeus" baseAuthorityYear="1758" box="[257,459,946,969]" class="Reptilia" family="Colubridae" genus="Chironius" kingdom="Animalia" order="Squamata" pageId="122" pageNumber="123" phylum="Chordata" rank="species" species="fuscus">
<emphasis id="B97F9651FFF2FFB0FEAE9FE2FE1AFC08" box="[257,459,946,969]" italics="true" pageId="122" pageNumber="123">Chironius fuscus</emphasis>
</taxonomicName>
, although the possibility of a second congener on the Auyán summit cannot be excluded. Most other
<taxonomicName id="4C0B31C0FFF2FFB0FF6B985AFE56FBE0" box="[196,391,1034,1057]" class="Reptilia" family="Colubridae" genus="Chironius" kingdom="Animalia" order="Squamata" pageId="122" pageNumber="123" phylum="Chordata" rank="species" species="undetermined">
<emphasis id="B97F9651FFF2FFB0FF6B985AFEE3FBE1" box="[196,306,1034,1057]" italics="true" pageId="122" pageNumber="123">Chironius</emphasis>
species
</taxonomicName>
in southern
<collectingCountry id="F31C0AD3FFF2FFB0FDB8985AFD5CFBE0" box="[535,653,1034,1056]" name="Venezuela" pageId="122" pageNumber="123">Venezuela</collectingCountry>
(
<taxonomicName id="4C0B31C0FFF2FFB0FF269878FF20FBFD" authorityName="Linnaeus" authorityYear="1758" box="[137,241,1064,1085]" class="Reptilia" family="Colubridae" genus="Chironius" kingdom="Animalia" order="Squamata" pageId="122" pageNumber="123" phylum="Chordata" rank="species" species="carinatus">
<emphasis id="B97F9651FFF2FFB0FF269878FF20FBFD" box="[137,241,1064,1085]" italics="true" pageId="122" pageNumber="123">carinatus</emphasis>
</taxonomicName>
,
<taxonomicName id="4C0B31C0FFF2FFB0FEA29877FEBBFBFE" baseAuthorityName="Linnaeus" baseAuthorityYear="1758" box="[269,362,1063,1086]" class="Reptilia" family="Colubridae" genus="Chironius" kingdom="Animalia" order="Squamata" pageId="122" pageNumber="123" phylum="Chordata" rank="species" species="exoletus">
<emphasis id="B97F9651FFF2FFB0FEA29877FEBBFBFE" box="[269,362,1063,1086]" italics="true" pageId="122" pageNumber="123">exoletus</emphasis>
</taxonomicName>
, and
<emphasis id="B97F9651FFF2FFB0FE699877FD9AFBFE" box="[454,587,1063,1086]" italics="true" pageId="122" pageNumber="123">multiventris</emphasis>
) are differentiated from the material at hand by presence of 12 rows of dorsal scales anteriorly and at midbody.
<taxonomicName id="4C0B31C0FFF2FFB0FEFB982FFDE5FB56" baseAuthorityName="Wagler" baseAuthorityYear="1824" box="[340,564,1151,1174]" class="Reptilia" family="Colubridae" genus="Chironius" kingdom="Animalia" order="Squamata" pageId="122" pageNumber="123" phylum="Chordata" rank="species" species="scurrulus">
<emphasis id="B97F9651FFF2FFB0FEFB982FFDE5FB56" box="[340,564,1151,1174]" italics="true" pageId="122" pageNumber="123">Chironius scurrulus</emphasis>
</taxonomicName>
has 10 midbody rows of smooth (unkeeled) scales, as do the whole specimen and skin fragment from Auyantepui; these materials, in fact, key out to
<taxonomicName id="4C0B31C0FFF2FFB0FF7798A4FEEFFACB" baseAuthorityName="Wagler" baseAuthorityYear="1824" box="[216,318,1268,1291]" class="Reptilia" family="Colubridae" genus="Chironius" kingdom="Animalia" order="Squamata" pageId="122" pageNumber="123" phylum="Chordata" rank="species" species="scurrulus">
<emphasis id="B97F9651FFF2FFB0FF7798A4FEEFFACB" box="[216,318,1268,1291]" italics="true" pageId="122" pageNumber="123">scurrulus</emphasis>
</taxonomicName>
in
<bibRefCitation id="EF9A37B2FFF2FFB0FEC198A4FD5BFACA" author="Dixon, James &amp; John A. Wiest, Jr &amp; Jose M. Cei" box="[366,650,1268,1290]" pageId="122" pageNumber="123" refId="ref82397" refString="Dixon, James R, John A. Wiest, Jr, and Jose M. Cei. 1993. Revision of the Neotropical snake genus Chironius Fitzinger (Serpentes, Colubridae). Museo Regionale di Scienze Naturali (Turin), Monografie 8, 279 pp." type="book" year="1993">Dixon et al. (1993: 57)</bibRefCitation>
. However, immature
<taxonomicName id="4C0B31C0FFF2FFB0FED09941FE15FAE6" baseAuthorityName="Linnaeus" baseAuthorityYear="1758" box="[383,452,1297,1318]" class="Reptilia" family="Colubridae" genus="Chironius" kingdom="Animalia" order="Squamata" pageId="122" pageNumber="123" phylum="Chordata" rank="species" species="fuscus">
<emphasis id="B97F9651FFF2FFB0FED09941FE15FAE6" box="[383,452,1297,1318]" italics="true" pageId="122" pageNumber="123">fuscus</emphasis>
</taxonomicName>
may lack completely the key character of keeling (
<bibRefCitation id="EF9A37B2FFF2FFB0FD89997FFEF5FAA2" author="Dixon, James &amp; John A. Wiest, Jr &amp; Jose M. Cei" pageId="122" pageNumber="123" refId="ref82397" refString="Dixon, James R, John A. Wiest, Jr, and Jose M. Cei. 1993. Revision of the Neotropical snake genus Chironius Fitzinger (Serpentes, Colubridae). Museo Regionale di Scienze Naturali (Turin), Monografie 8, 279 pp." type="book" year="1993">Dixon et al., 1993: 116</bibRefCitation>
); the whole specimen (fig. 73) has a color pattern consistent with
<taxonomicName id="4C0B31C0FFF2FFB0FDB99939FD8AFABE" baseAuthorityName="Linnaeus" baseAuthorityYear="1758" box="[534,603,1385,1406]" class="Reptilia" family="Colubridae" genus="Chironius" kingdom="Animalia" order="Squamata" pageId="122" pageNumber="123" phylum="Chordata" rank="species" species="fuscus">
<emphasis id="B97F9651FFF2FFB0FDB99939FD8AFABE" box="[534,603,1385,1406]" italics="true" pageId="122" pageNumber="123">fuscus</emphasis>
</taxonomicName>
and this identity was confirmed by
<bibRefCitation id="EF9A37B2FFF2FFB0FE5499D6FEDAFA7A" author="Dixon, James &amp; John A. Wiest, Jr &amp; Jose M. Cei" pageId="122" pageNumber="123" refId="ref82397" refString="Dixon, James R, John A. Wiest, Jr, and Jose M. Cei. 1993. Revision of the Neotropical snake genus Chironius Fitzinger (Serpentes, Colubridae). Museo Regionale di Scienze Naturali (Turin), Monografie 8, 279 pp." type="book" year="1993">Dixon et al. (1993: 261)</bibRefCitation>
in their Specimens Examined section.
</paragraph>
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Roze (1958a: 266; 1966: 95) listed three Auyantepui specimens of
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<emphasis id="B97F9651FFF2FFB0FE0099ACFD5FF9D2" box="[431,654,1532,1555]" italics="true" pageId="122" pageNumber="123">Chironius carinatus</emphasis>
</taxonomicName>
from the 19371938 AMNHPhelps Venezuelan Expedition. The AMNH catalog shows that all were collected well below the summit. Two specimens (AMNH R-61020, 61024) were collected by W. H. Phelps at
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(
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). The third specimen (AMNH R-61036) was obtained by Phelps near the base of Auyantepui, at
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(
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). The last is a specimen of
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<emphasis id="B97F9651FFF2FFB0FBF19CA1FCCBFEE5" italics="true" pageId="122" pageNumber="123">Chironius exoletus</emphasis>
</taxonomicName>
according to
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Dixon et al. (1993:
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in Specimens Examined).
</paragraph>
</subSubSection>
</treatment>
</document>