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<mods:title id="D805670E27E6024A10C055C7DDA95A2C">Inventory of chiton species (Polyplacophora) from the rocky intertidal of the Northern Gulf of California, with an illustrated taxonomic key</mods:title>
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<mods:namePart id="028ED202A5A4C0EC91B123A52962E130">Reyes-Gómez, Adriana</mods:namePart>
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<mods:affiliation id="256783BC623EB879BE80FD9C160F4C39">Departamento de Ecología Aplicada, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Camino Ing. Ramón Padilla Sánchez 2100, Zapopan, Jalisco, 45200, México.</mods:affiliation>
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<heading id="AA0C81C5E4515512D0F172E071C4FB10" bold="true" box="[151,640,1189,1216]" fontSize="11" level="1" pageId="6" pageNumber="153" reason="1">
<taxonomicName id="36FB4D2AE4515512D0F172E071C4FB10" ID-CoL="523NL" ID-ENA="1307460" authority="(Sowerby, 1832)" baseAuthorityName="G. B. Sowerby I" baseAuthorityYear="1832" box="[151,640,1189,1216]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="6" pageNumber="153" phylum="Mollusca" rank="species" species="limaciformis">
<emphasis id="C38FEABBE4515512D0F172E071C4FB10" bold="true" box="[151,640,1189,1216]" pageId="6" pageNumber="153">
<emphasis id="C38FEABBE4515512D0F172E072F4FB6F" bold="true" box="[151,432,1189,1216]" italics="true" pageId="6" pageNumber="153">Stenoplax limaciformis</emphasis>
(Sowerby, 1832)
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<paragraph id="F14436A9E4515512D0F1728F722BFB4B" blockId="6.[151,640,1189,1252]" box="[151,367,1226,1252]" pageId="6" pageNumber="153">
(
<figureCitation id="69C02A2CE4515512D0F9728F725AFB4B" box="[159,286,1226,1252]" captionStart="FIGURE 2" captionStartId="5.[151,250,1791,1815]" captionTargetBox="[151,1436,181,1767]" captionTargetId="figure-21@5.[151,1436,181,1768]" captionTargetPageId="5" captionText="FIGURE 2. Chiton species obtained from the Northern Gulf of California. A. Dorsal and lateral views of Ischnochiton guatemalensis CUCBACM 00450. B. Dorsal and lateral views of Ischnochiton tridentatus CUCBACM 00453. C. Dorsal and lateral views of Stenoplax limaciformis CUCBACM 00455. D. Dorsal and lateral views of Stenoplax mariposa CUCBACM 00459. E. Dorsal and lateral views of Stenoplax sonorana CUCBACM 00462. F. Dorsal view of Lepidozona clathrata CUCBACM 00464. G. Dorsal view of Lepidozona serrata CUCBACM 00471. H. Dorsal and lateral views of Lepidozona subtilis CUCBACM 00475. I. Dorsal and lateral views of Callistochiton elenensis CUCBACM 00476." figureDoi="http://doi.org/10.5281/zenodo.7973081" httpUri="https://zenodo.org/record/7973081/files/figure.png" pageId="6" pageNumber="153">Figures 2C</figureCitation>
,
<figureCitation id="69C02A2CE4515512D14C728F7223FB4B" box="[298,359,1226,1252]" captionStart="FIGURE 4" captionStartId="8.[151,250,1782,1806]" captionTargetBox="[171,1417,181,1758]" captionTargetId="figure-24@8.[171,1417,181,1758]" captionTargetPageId="8" captionText="FIGURE 4. AI. Scanning electron microscope images of one specimen of Ischnochiton guatemalensis CUCBACM 00450. A. Dorsal view of head valve. B. Dorsal view of intermediate valve IV. C. Dorsal view of tail valve. D. Detail of valve IV central area. E. Detail of valve IV aesthetes of central area. Dorsal view of F. Dorsal girdle scales. G. Detail in dorsal view of girdle scales ornamentation. H. Radular teeth. I. Detail of central and minor lateral teeth. Light microscope images (JL) and scanning electron microscope images (MN) of Stenoplax limaciformis CUCBACM 00455. J. Dorsal view of head valve. K. Dorsal view of intermediate valve IV. L. Dorsal view of tail valve. M. Dorsal view of girdle scales. N. Radular teeth detail." figureDoi="http://doi.org/10.5281/zenodo.7973374" httpUri="https://zenodo.org/record/7973374/files/figure.png" pageId="6" pageNumber="153">4JN</figureCitation>
)
</paragraph>
<paragraph id="F14436A9E4515512D0F1735773ADFAFE" blockId="6.[151,1437,1298,1361]" pageId="6" pageNumber="153">
<taxonomicName id="36FB4D2AE4515512D0F1735772ABFA83" authority="Sowerby" authorityName="G. B. Sowerby I" authorityYear="1832" box="[151,495,1298,1324]" class="Polyplacophora" family="Chitonidae" genus="Chiton" kingdom="Animalia" order="Chitonida" pageId="6" pageNumber="153" phylum="Mollusca" rank="species" species="limaciformis">
<emphasis id="C38FEABBE4515512D0F17357723AFA83" box="[151,382,1298,1324]" italics="true" pageId="6" pageNumber="153">Chiton limaciformis</emphasis>
Sowerby
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in Broderip &amp; Sowerby, 1832: 2533. Chresonymy and synonymy in
<bibRefCitation id="956A4B58E4515512D522735773A2FAFE" author="Bullock, R. C." pageId="6" pageNumber="153" pagination="291 - 307" refId="ref16478" refString="Bullock, R. C. (1985) The Stenoplax limaciformis (Sowerby, 1832) species complex in the New World (Mollusca: Polyplacophora: Ischnochitonidae). The Veliger, 27 (3), 291 - 307." type="journal article" year="1985">Bullock (1985)</bibRefCitation>
.
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<emphasis id="C38FEABBE4515512D0F1733B7201FA38" bold="true" box="[151,325,1405,1432]" pageId="6" pageNumber="153">Type material.</emphasis>
<materialsCitation id="41933CF4E4515512D12A733B7137FA37" box="[332,627,1406,1432]" collectionCode="BMNH" pageId="6" pageNumber="153" specimenCode="BMNH 1980007" specimenCount="1" typeStatus="syntype">
<typeStatus id="2E40880BE4515512D12A733B72ECFA37" box="[332,424,1406,1432]" pageId="6" pageNumber="153">Syntype</typeStatus>
<specimenCode id="A15D9ED2E4515512D1C9733B7137FA37" box="[431,627,1406,1432]" collectionCode="BMNH" pageId="6" pageNumber="153">BMNH 1980007</specimenCode>
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/1.
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<paragraph id="F14436A9E4515512D0A173E77718FA4F" blockId="6.[151,1437,1405,2008]" pageId="6" pageNumber="153">
<materialsCitation id="41933CF4E4515512D0A173E7771CFA4F" country="Peru" county="Central America" location="According" municipality="Guacomayo" pageId="6" pageNumber="153" specimenCount="1" typeStatus="holotype">
<emphasis id="C38FEABBE4515512D0A173E77222FA14" bold="true" box="[199,358,1441,1468]" pageId="6" pageNumber="153">
<typeStatus id="2E40880BE4515512D0A173E77246FA13" box="[199,258,1442,1468]" pageId="6" pageNumber="153">Type</typeStatus>
locality.
</emphasis>
<location id="F4246072E4515512D10D73E772A5FA13" LSID="urn:lsid:plazi:treatment:795287BFE4515513D0F172E07790F8EB:F4246072E4515512D10D73E772A5FA13" box="[363,481,1442,1468]" country="Peru" county="Central America" municipality="Guacomayo" name="According" pageId="6" pageNumber="153">According</location>
to
<bibRefCitation id="956A4B58E4515512D26373E77064FA13" author="Kaas, P. &amp; Van Belle, R." box="[517,800,1442,1468]" pageId="6" pageNumber="153" refId="ref18612" refString="Kaas, P. &amp; Van Belle, R. (1987) Monograph of Living Chitons (Mollusca: Polyplacophora). Vol. 3. Suborder Ischnochitonidae. Chaetopleurinae and Ischnochitoninae. E. J. Brill, Leiden, 302 pp. https: // doi. org / 10.1163 / 9789004431690" type="book" year="1987">Kaas &amp; Van Belle (1987)</bibRefCitation>
at
<location id="F4246072E4515512D32573E7708AFA13" LSID="urn:lsid:plazi:treatment:795287BFE4515513D0F172E07790F8EB:F4246072E4515512D32573E7708AFA13" box="[835,974,1442,1468]" country="Peru" county="Central America" municipality="Guacomayo" name="Inner Lobos" pageId="6" pageNumber="153">Inner Lobos</location>
,
<collectingCountry id="89EC7639E4515512D3BF73E77754FA13" box="[985,1040,1442,1468]" name="Peru" pageId="6" pageNumber="153">Perú</collectingCountry>
;
<location id="F4246072E4515512D47A73E77793FA13" LSID="urn:lsid:plazi:treatment:795287BFE4515513D0F172E07790F8EB:F4246072E4515512D47A73E77793FA13" box="[1052,1239,1442,1468]" country="Peru" county="Central America" municipality="Guacomayo" name="Central America" pageId="6" pageNumber="153">Central America</location>
,
<collectingMunicipality id="1120ACD3E4515512D48473E7762DFA13" box="[1250,1385,1442,1468]" pageId="6" pageNumber="153">Guacomayo</collectingMunicipality>
(the exact location is unknown; it is even unclear from which country in
<collectingCounty id="18254E25E4515512D3F573837715FA4F" box="[915,1105,1478,1504]" pageId="6" pageNumber="153">Central America</collectingCounty>
)
</materialsCitation>
.
</paragraph>
<paragraph id="F14436A9E4515512D0A173AC70DEF9AB" blockId="6.[151,1437,1405,2008]" box="[199,922,1513,1540]" pageId="6" pageNumber="153">
<emphasis id="C38FEABBE4515512D0A173AC72F5F9AC" bold="true" box="[199,433,1513,1539]" pageId="6" pageNumber="153">Material examined.</emphasis>
Ninety
<specimenCount id="E7FDFD20E4515512D27473AF71F8F9AB" box="[530,700,1514,1540]" pageId="6" pageNumber="153" type="generic">five specimens</specimenCount>
, BL
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.
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<emphasis id="C38FEABBE4515512D0A17048726EF988" bold="true" box="[199,298,1549,1575]" pageId="6" pageNumber="153">Habitat.</emphasis>
In the intertidal, on mediumsized and small rocks with patches of crusty algae and abundant globular tally of the algae
<taxonomicName id="36FB4D2AE4515512D13C707771F9F9E3" authority="Decaisne, 1842" authorityName="Decaisne" authorityYear="1842" box="[346,701,1586,1612]" class="Ulvophyceae" family="Siphonocladaceae" genus="Dictyosphaeria" kingdom="Plantae" order="Siphonocladales" pageId="6" pageNumber="153" phylum="Chlorophyta" rank="genus">
<emphasis id="C38FEABBE4515512D13C70777143F9E3" box="[346,519,1586,1612]" italics="true" pageId="6" pageNumber="153">Dictyosphaeria</emphasis>
<bibRefCitation id="956A4B58E4515512D26B707771F9F9E3" author="Decaisne, J." box="[525,701,1586,1612]" pageId="6" pageNumber="153" pagination="297 - 380" refId="ref17187" refString="Decaisne, J. (1842) Essais sur une classification des algues et des polypiers calciferes de Lamouroux. Annales des Sciences Naturelles, Botanique, Seconde Serie, 17, 297 - 380." type="journal article" year="1842">Decaisne, 1842</bibRefCitation>
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. The algae patches had a maximum diameter of
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.
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</subSubSection>
<subSubSection id="B9E16522E4515513D0A170137790F8EB" lastPageId="7" lastPageNumber="154" pageId="6" pageNumber="153" type="discussion">
<paragraph id="F14436A9E4515512D0A1701371CCF8AF" blockId="6.[151,1437,1405,2008]" pageId="6" pageNumber="153">
<emphasis id="C38FEABBE4515512D0A17013727FF9DF" bold="true" box="[199,315,1622,1648]" pageId="6" pageNumber="153">Remarks.</emphasis>
<taxonomicName id="36FB4D2AE4515512D12470137102F9DF" baseAuthorityName="G. B. Sowerby I" baseAuthorityYear="1832" box="[322,582,1622,1648]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="6" pageNumber="153" phylum="Mollusca" rank="species" species="limaciformis">
<emphasis id="C38FEABBE4515512D12470137102F9DF" box="[322,582,1622,1648]" italics="true" pageId="6" pageNumber="153">Stenoplax limaciformis</emphasis>
</taxonomicName>
has a sculpture of somewhat elevated ribs, the ribs are usually broken at the periphery of the valves and become less broken and can show a zigzag arrangement towards the apex (
<figureCitation id="69C02A2CE4515512D55D703F73E8F917" captionStart="FIGURE 4" captionStartId="8.[151,250,1782,1806]" captionTargetBox="[171,1417,181,1758]" captionTargetId="figure-24@8.[171,1417,181,1758]" captionTargetPageId="8" captionText="FIGURE 4. AI. Scanning electron microscope images of one specimen of Ischnochiton guatemalensis CUCBACM 00450. A. Dorsal view of head valve. B. Dorsal view of intermediate valve IV. C. Dorsal view of tail valve. D. Detail of valve IV central area. E. Detail of valve IV aesthetes of central area. Dorsal view of F. Dorsal girdle scales. G. Detail in dorsal view of girdle scales ornamentation. H. Radular teeth. I. Detail of central and minor lateral teeth. Light microscope images (JL) and scanning electron microscope images (MN) of Stenoplax limaciformis CUCBACM 00455. J. Dorsal view of head valve. K. Dorsal view of intermediate valve IV. L. Dorsal view of tail valve. M. Dorsal view of girdle scales. N. Radular teeth detail." figureDoi="http://doi.org/10.5281/zenodo.7973374" httpUri="https://zenodo.org/record/7973374/files/figure.png" pageId="6" pageNumber="153">Figs. 4J, L</figureCitation>
). Lateral areas of valves raised and central areas with narrow longitudinal ribs (
<figureCitation id="69C02A2CE4515512D44D70DB77C2F917" box="[1067,1158,1694,1720]" captionStart="FIGURE 4" captionStartId="8.[151,250,1782,1806]" captionTargetBox="[171,1417,181,1758]" captionTargetId="figure-24@8.[171,1417,181,1758]" captionTargetPageId="8" captionText="FIGURE 4. AI. Scanning electron microscope images of one specimen of Ischnochiton guatemalensis CUCBACM 00450. A. Dorsal view of head valve. B. Dorsal view of intermediate valve IV. C. Dorsal view of tail valve. D. Detail of valve IV central area. E. Detail of valve IV aesthetes of central area. Dorsal view of F. Dorsal girdle scales. G. Detail in dorsal view of girdle scales ornamentation. H. Radular teeth. I. Detail of central and minor lateral teeth. Light microscope images (JL) and scanning electron microscope images (MN) of Stenoplax limaciformis CUCBACM 00455. J. Dorsal view of head valve. K. Dorsal view of intermediate valve IV. L. Dorsal view of tail valve. M. Dorsal view of girdle scales. N. Radular teeth detail." figureDoi="http://doi.org/10.5281/zenodo.7973374" httpUri="https://zenodo.org/record/7973374/files/figure.png" pageId="6" pageNumber="153">Fig. 4K</figureCitation>
). Girdle with small, bent dorsal scales showing eroded surface with 59 longitudinal, broken striae (
<figureCitation id="69C02A2CE4515512D38C7087770FF973" box="[1002,1099,1730,1756]" captionStart="FIGURE 4" captionStartId="8.[151,250,1782,1806]" captionTargetBox="[171,1417,181,1758]" captionTargetId="figure-24@8.[171,1417,181,1758]" captionTargetPageId="8" captionText="FIGURE 4. AI. Scanning electron microscope images of one specimen of Ischnochiton guatemalensis CUCBACM 00450. A. Dorsal view of head valve. B. Dorsal view of intermediate valve IV. C. Dorsal view of tail valve. D. Detail of valve IV central area. E. Detail of valve IV aesthetes of central area. Dorsal view of F. Dorsal girdle scales. G. Detail in dorsal view of girdle scales ornamentation. H. Radular teeth. I. Detail of central and minor lateral teeth. Light microscope images (JL) and scanning electron microscope images (MN) of Stenoplax limaciformis CUCBACM 00455. J. Dorsal view of head valve. K. Dorsal view of intermediate valve IV. L. Dorsal view of tail valve. M. Dorsal view of girdle scales. N. Radular teeth detail." figureDoi="http://doi.org/10.5281/zenodo.7973374" httpUri="https://zenodo.org/record/7973374/files/figure.png" pageId="6" pageNumber="153">Fig. 4M</figureCitation>
). Radula with tricuspid major lateral and short thin central tooth (
<figureCitation id="69C02A2CE4515512D24770A37138F8AF" box="[545,636,1766,1792]" captionStart="FIGURE 4" captionStartId="8.[151,250,1782,1806]" captionTargetBox="[171,1417,181,1758]" captionTargetId="figure-24@8.[171,1417,181,1758]" captionTargetPageId="8" captionText="FIGURE 4. AI. Scanning electron microscope images of one specimen of Ischnochiton guatemalensis CUCBACM 00450. A. Dorsal view of head valve. B. Dorsal view of intermediate valve IV. C. Dorsal view of tail valve. D. Detail of valve IV central area. E. Detail of valve IV aesthetes of central area. Dorsal view of F. Dorsal girdle scales. G. Detail in dorsal view of girdle scales ornamentation. H. Radular teeth. I. Detail of central and minor lateral teeth. Light microscope images (JL) and scanning electron microscope images (MN) of Stenoplax limaciformis CUCBACM 00455. J. Dorsal view of head valve. K. Dorsal view of intermediate valve IV. L. Dorsal view of tail valve. M. Dorsal view of girdle scales. N. Radular teeth detail." figureDoi="http://doi.org/10.5281/zenodo.7973374" httpUri="https://zenodo.org/record/7973374/files/figure.png" pageId="6" pageNumber="153">Fig. 4N</figureCitation>
).
</paragraph>
<paragraph id="F14436A9E4515512D0A1714F7274F877" blockId="6.[151,1437,1405,2008]" pageId="6" pageNumber="153">
<taxonomicName id="36FB4D2AE4515512D0A1714F728EF88B" baseAuthorityName="G. B. Sowerby I" baseAuthorityYear="1832" box="[199,458,1802,1828]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="6" pageNumber="153" phylum="Mollusca" rank="species" species="limaciformis">
<emphasis id="C38FEABBE4515512D0A1714F728EF88B" box="[199,458,1802,1828]" italics="true" pageId="6" pageNumber="153">Stenoplax limaciformis</emphasis>
</taxonomicName>
differs from the other species of
<taxonomicName id="36FB4D2AE4515512D351714F70E1F88B" authorityName="Dall" authorityYear="1879" box="[823,933,1802,1828]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="6" pageNumber="153" phylum="Mollusca" rank="genus">
<emphasis id="C38FEABBE4515512D351714F70E1F88B" box="[823,933,1802,1828]" italics="true" pageId="6" pageNumber="153">Stenoplax</emphasis>
</taxonomicName>
in body shape and tegmentum sculpture. The morphological characters of
<taxonomicName id="36FB4D2AE4515512D1B0716B713BF8E7" baseAuthorityName="G. B. Sowerby I" baseAuthorityYear="1832" box="[470,639,1838,1864]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="6" pageNumber="153" phylum="Mollusca" rank="species" species="limaciformis">
<emphasis id="C38FEABBE4515512D1B0716B72A0F8E7" box="[470,484,1838,1864]" italics="true" pageId="6" pageNumber="153">S</emphasis>
.
<emphasis id="C38FEABBE4515512D197716B713BF8E7" box="[497,639,1838,1864]" italics="true" pageId="6" pageNumber="153">limaciformis</emphasis>
</taxonomicName>
are: 1) high variation in the color pattern of the tegmentum, 2) maximal known body size
<quantity id="36039B4CE4515512D107711772F7F8C3" box="[353,435,1874,1901]" metricMagnitude="-2" metricUnit="m" metricValue="3.5" pageId="6" pageNumber="153" unit="mm" value="35.0">35 mm</quantity>
, 3) moderately elevated tegmentum sculpture of irregular and/or intercut slats forming nodules, and 4) elongated girdle scales, curved and with longitudinal fine grooves. However,
<taxonomicName id="36FB4D2AE4515512D4C37133766FF83F" box="[1189,1323,1910,1936]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="6" pageNumber="153" phylum="Mollusca" rank="species" species="sonorana">
<emphasis id="C38FEABBE4515512D4C3713377F7F83F" box="[1189,1203,1910,1936]" italics="true" pageId="6" pageNumber="153">S</emphasis>
.
<emphasis id="C38FEABBE4515512D4A77132766FF83F" box="[1217,1323,1911,1936]" italics="true" pageId="6" pageNumber="153">sonorana</emphasis>
</taxonomicName>
exhibits a gray or olivegreen tegmentum color; its maximum size is up to
<quantity id="36039B4CE4515512D30F71DF70FEF81B" box="[873,954,1946,1973]" metricMagnitude="-2" metricUnit="m" metricValue="6.5" pageId="6" pageNumber="153" unit="mm" value="65.0">65 mm</quantity>
; with coarse, elevated tegmentum and long bent spicules.
</paragraph>
<caption id="A5846621E4505513D0F172C570B7FAAB" ID-DOI="http://doi.org/10.5281/zenodo.7973086" ID-Zenodo-Dep="7973086" httpUri="https://zenodo.org/record/7973086/files/figure.png" pageId="7" pageNumber="154" startId="7.[151,250,1152,1176]" targetBox="[151,1436,181,1128]" targetPageId="7" targetType="figure">
<paragraph id="F14436A9E4505513D0F172C570B7FAAB" blockId="7.[151,1437,1152,1284]" pageId="7" pageNumber="154">
<emphasis id="C38FEABBE4505513D0F172C57256FB37" bold="true" box="[151,274,1152,1176]" pageId="7" pageNumber="154">FIGURE 3.</emphasis>
<taxonomicName id="36FB4D2AE4505513D17E72C572E8FB37" box="[280,428,1152,1176]" pageId="7" pageNumber="154">Chiton species</taxonomicName>
obtained from the Northern Gulf of California.
<emphasis id="C38FEABBE4505513D3EB72C570E1FB37" bold="true" box="[909,933,1152,1176]" pageId="7" pageNumber="154">A.</emphasis>
Dorsal and lateral view of
<taxonomicName id="36FB4D2AE4505513D4D372C57252FB13" authority="CUCBACM" authorityName="CUCBACM" class="Polyplacophora" family="Mopaliidae" genus="Dendrochiton" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="lirulatus">
<emphasis id="C38FEABBE4505513D4D372C576D8FB37" box="[1205,1436,1152,1176]" italics="true" pageId="7" pageNumber="154">Dendrochiton lirulatus</emphasis>
CUCBACM
</taxonomicName>
00479.
<emphasis id="C38FEABBE4505513D11672E172C3FB13" bold="true" box="[368,391,1188,1212]" pageId="7" pageNumber="154">B.</emphasis>
Dorsal view of
<taxonomicName id="36FB4D2AE4505513D25C72E170DBFB13" authority="CUCBACM" authorityName="CUCBACM" box="[570,927,1188,1212]" class="Polyplacophora" family="Tonicellidae" genus="Lepidochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="beanii">
<emphasis id="C38FEABBE4505513D25C72E17052FB13" box="[570,790,1188,1212]" italics="true" pageId="7" pageNumber="154">Lepidochitona beanii</emphasis>
CUCBACM
</taxonomicName>
00486.
<emphasis id="C38FEABBE4505513D39F72E17755FB13" bold="true" box="[1017,1041,1188,1212]" pageId="7" pageNumber="154">C.</emphasis>
Dorsal and lateral view of
<taxonomicName id="36FB4D2AE4505513D55B72E17234FB4F" authority="CUCBACM" authorityName="CUCBACM" class="Polyplacophora" family="Tonicellidae" genus="Nutallina" higherTaxonomySource="GBIF" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="crossota">
<emphasis id="C38FEABBE4505513D55B72E173A8FB4F" italics="true" pageId="7" pageNumber="154">Nutallina crossota</emphasis>
CUCBACM
</taxonomicName>
00488.
<emphasis id="C38FEABBE4505513D1D9728D729CFB4F" bold="true" box="[447,472,1224,1248]" pageId="7" pageNumber="154">D.</emphasis>
Dorsal view of
<taxonomicName id="36FB4D2AE4505513D213728D70EDFB4F" authority="CUCBACM" authorityName="CUCBACM" box="[629,937,1224,1248]" class="Polyplacophora" family="Chitonidae" genus="Chiton" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="virgulatus">
<emphasis id="C38FEABBE4505513D213728D7061FB4F" box="[629,805,1224,1248]" italics="true" pageId="7" pageNumber="154">Chiton virgulatus</emphasis>
CUCBACM
</taxonomicName>
00491.
<emphasis id="C38FEABBE4505513D39E728D774BFB4F" bold="true" box="[1016,1039,1224,1248]" pageId="7" pageNumber="154">E.</emphasis>
Dorsal view of
<taxonomicName id="36FB4D2AE4505513D4CA728D7252FAAB" authority="CUCBACM" authorityName="CUCBACM" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="avicula">
<emphasis id="C38FEABBE4505513D4CA728D76D9FB4F" box="[1196,1437,1224,1248]" italics="true" pageId="7" pageNumber="154">Acanthochitona avicula</emphasis>
CUCBACM
</taxonomicName>
00494.
<emphasis id="C38FEABBE4505513D10E72A9723FFAAB" bold="true" box="[360,379,1260,1284]" pageId="7" pageNumber="154">F.</emphasis>
Dorsal view of
<taxonomicName id="36FB4D2AE4505513D27972A970E2FAAB" authority="CUCBACM" authorityName="CUCBACM" box="[543,934,1260,1284]" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="exquisita">
<emphasis id="C38FEABBE4505513D27972A97065FAAB" box="[543,801,1260,1284]" italics="true" pageId="7" pageNumber="154">Acanthochitona exquisita</emphasis>
CUCBACM
</taxonomicName>
00497.
</paragraph>
</caption>
<paragraph id="F14436A9E4505513D0A973137171F91A" blockId="7.[151,1437,1366,1861]" pageId="7" pageNumber="154">
<taxonomicName id="36FB4D2AE4505513D0A973137297FADF" baseAuthorityName="G. B. Sowerby I" baseAuthorityYear="1832" box="[207,467,1366,1392]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="limaciformis">
<emphasis id="C38FEABBE4505513D0A973137297FADF" box="[207,467,1366,1392]" italics="true" pageId="7" pageNumber="154">Stenoplax limaciformis</emphasis>
</taxonomicName>
is more similar to the species of the Caribbean (
<taxonomicName id="36FB4D2AE4505513D39173137396FA3A" authority="C. B. Adams, 1845" authorityName="C. B. Adams" authorityYear="1845" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="purpurascens">
<emphasis id="C38FEABBE4505513D39173137641FADF" box="[1015,1285,1366,1392]" italics="true" pageId="7" pageNumber="154">Stenoplax purpurascens</emphasis>
C.B.
<bibRefCitation id="956A4B58E4505513D52073137396FA3A" author="Adams, C. B." pageId="7" pageNumber="154" pagination="1 - 17" refId="ref16085" refString="Adams, C. B. (1845) Specierum novarum conchyliorum, in Jamaica repertorum, Synopsis. Proceedings of the Boston Society of Natural History, 2, 1 - 17." type="journal article" year="1845">Adams, 1845</bibRefCitation>
</taxonomicName>
,
<taxonomicName id="36FB4D2AE4505513D086733E714DFA3B" authority="Pilsbry, 1892" authorityName="Pilsbry" authorityYear="1892" box="[224,521,1402,1429]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="floridana">
<emphasis id="C38FEABBE4505513D086733E7222FA3B" box="[224,358,1402,1429]" italics="true" pageId="7" pageNumber="154">S. floridana</emphasis>
<bibRefCitation id="956A4B58E4505513D116733F714DFA3B" author="Pilsbry, H. A." box="[368,521,1402,1428]" pageId="7" pageNumber="154" pagination="129 - 350" refId="ref19231" refString="Pilsbry, H. A. (1892 - 1893) Monograph of the Polyplacophora. In G. W. Tryon, Manual of Conchology, XXXIV. Academy of Natural Sciences, Philadelfia, 14 &amp; 15, 129 - 350 (1892) &amp; 1 - 64 (1893)." type="journal article" year="1892">Pilsbry, 1892</bibRefCitation>
</taxonomicName>
, and
<taxonomicName id="36FB4D2AE4505513D22E733E7755FA3B" authority="Kaas &amp; Van Belle, 1987" authorityName="Kaas &amp; Van Belle" authorityYear="1987" box="[584,1041,1402,1429]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="bahamensis">
<emphasis id="C38FEABBE4505513D22E733E71AFFA3B" box="[584,747,1402,1429]" italics="true" pageId="7" pageNumber="154">S. bahamensis</emphasis>
<bibRefCitation id="956A4B58E4505513D293733E7755FA3B" author="Kaas, P. &amp; Van Belle, R." box="[757,1041,1402,1429]" pageId="7" pageNumber="154" refId="ref18612" refString="Kaas, P. &amp; Van Belle, R. (1987) Monograph of Living Chitons (Mollusca: Polyplacophora). Vol. 3. Suborder Ischnochitonidae. Chaetopleurinae and Ischnochitoninae. E. J. Brill, Leiden, 302 pp. https: // doi. org / 10.1163 / 9789004431690" type="book" year="1987">Kaas &amp; Van Belle, 1987</bibRefCitation>
</taxonomicName>
). These morphological similarities were also noted by
<bibRefCitation id="956A4B58E4505513D11173DB7166FA17" author="Ferreira, A. J." box="[375,546,1438,1464]" pageId="7" pageNumber="154" pagination="19 - 44" refId="ref17422" refString="Ferreira, A. J. (1978) The genus Lepidozona (Mollusca: Polyplacophora) in the Temperate Eastern Pacific, Baja California to Alaska, with the description of a new species. The Veliger, 20 (1), 19 - 44." type="journal article" year="1978">Ferreira (1978)</bibRefCitation>
and
<bibRefCitation id="956A4B58E4505513D23D73DB7043FA16" author="Bullock, R. C." box="[603,775,1438,1465]" pageId="7" pageNumber="154" pagination="291 - 307" refId="ref16478" refString="Bullock, R. C. (1985) The Stenoplax limaciformis (Sowerby, 1832) species complex in the New World (Mollusca: Polyplacophora: Ischnochitonidae). The Veliger, 27 (3), 291 - 307." type="journal article" year="1985">Bullock (1985)</bibRefCitation>
and were confirmed in a molecular clock (
<emphasis id="C38FEABBE4505513D49373DB766EFA17" box="[1269,1322,1438,1464]" italics="true" pageId="7" pageNumber="154">cox1</emphasis>
) study by
<bibRefCitation id="956A4B58E4505513D0F1738772EBFA73" author="Garcia-Rios C. I. &amp; Perez-Perez, N. &amp; Fernandez-Lopez, J. &amp; Fuentes, F." box="[151,431,1474,1501]" pageId="7" pageNumber="154" pagination="193 - 207" refId="ref18017" refString="Garcia-Rios C. I., Perez-Perez, N., Fernandez-Lopez, J. &amp; Fuentes, F. (2014) Calibrating the chitons (Mollusca: Polyplacophora) molecular clock with the mitochondrial DNA cytochrome C oxidase I gene. Revista Biologia Marina y Oceanografia, 49, 193 - 207. https: // doi. org / 10.4067 / S 0718 - 19572014000200003" type="journal article" year="2014">
García-Ríos
<emphasis id="C38FEABBE4505513D14273867210FA73" box="[292,340,1474,1500]" italics="true" pageId="7" pageNumber="154">et al</emphasis>
. (2014)
</bibRefCitation>
.
<bibRefCitation id="956A4B58E4505513D1DE73877125FA72" author="Bullock, R. C." box="[440,609,1474,1501]" pageId="7" pageNumber="154" pagination="291 - 307" refId="ref16478" refString="Bullock, R. C. (1985) The Stenoplax limaciformis (Sowerby, 1832) species complex in the New World (Mollusca: Polyplacophora: Ischnochitonidae). The Veliger, 27 (3), 291 - 307." type="journal article" year="1985">Bullock (1985)</bibRefCitation>
concluded that
<taxonomicName id="36FB4D2AE4505513D369738670FCFA73" baseAuthorityName="G. B. Sowerby I" baseAuthorityYear="1832" box="[783,952,1474,1501]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="limaciformis">
<emphasis id="C38FEABBE4505513D369738670FCFA73" box="[783,952,1474,1501]" italics="true" pageId="7" pageNumber="154">S. limaciformis</emphasis>
</taxonomicName>
shows a greater affinity to
<emphasis id="C38FEABBE4505513D484738676D9FA73" box="[1250,1437,1475,1501]" italics="true" pageId="7" pageNumber="154">
<taxonomicName id="36FB4D2AE4505513D484738676DDFA73" authorityName="C. B. Adams" authorityYear="1845" box="[1250,1433,1475,1501]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="purpurascens">S. purpurascens</taxonomicName>
.
</emphasis>
He noted that
<taxonomicName id="36FB4D2AE4505513D15473A272F0F9AF" authorityName="Pilsbry" authorityYear="1892" box="[306,436,1510,1537]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="floridana">
<emphasis id="C38FEABBE4505513D15473A272F0F9AF" box="[306,436,1510,1537]" italics="true" pageId="7" pageNumber="154">S. floridana</emphasis>
</taxonomicName>
,
<taxonomicName id="36FB4D2AE4505513D1A773A27133F9AF" authorityName="C. B. Adams" authorityYear="1845" box="[449,631,1511,1537]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="purpurascens">
<emphasis id="C38FEABBE4505513D1A773A2728BF9AE" box="[449,463,1511,1537]" italics="true" pageId="7" pageNumber="154">S</emphasis>
.
<emphasis id="C38FEABBE4505513D1BA73A27133F9AF" box="[476,631,1511,1536]" italics="true" pageId="7" pageNumber="154">purpurascens</emphasis>
</taxonomicName>
<emphasis id="C38FEABBE4505513D21E73A27138F9AF" box="[632,636,1511,1536]" italics="true" pageId="7" pageNumber="154">,</emphasis>
and
<taxonomicName id="36FB4D2AE4505513D2D673A2700BF9AF" authorityName="Kaas &amp; Van Belle" authorityYear="1987" box="[688,847,1510,1537]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="bahamensis">
<emphasis id="C38FEABBE4505513D2D673A271FAF9AE" box="[688,702,1511,1537]" italics="true" pageId="7" pageNumber="154">S</emphasis>
.
<emphasis id="C38FEABBE4505513D2AD73A3700BF9AF" box="[715,847,1510,1536]" italics="true" pageId="7" pageNumber="154">bahamensis</emphasis>
</taxonomicName>
are morphologically similar but can be differentiated by details in shape and arrangement of the tegmentum sculpture, also observed in the
<taxonomicName id="36FB4D2AE4505513D40D704F7677F98B" box="[1131,1331,1546,1572]" pageId="7" pageNumber="154">
<emphasis id="C38FEABBE4505513D40D704F779DF98B" box="[1131,1241,1546,1572]" italics="true" pageId="7" pageNumber="154">Stenoplax</emphasis>
species
</taxonomicName>
from the Mexican Caribbean discussed by ReyesGómez
<emphasis id="C38FEABBE4505513D2DA706A71B1F9E7" box="[700,757,1582,1608]" italics="true" pageId="7" pageNumber="154">et al.</emphasis>
(2017).
<bibRefCitation id="956A4B58E4505513D333706B7744F9E6" author="Bullock, R. C." box="[853,1024,1582,1609]" pageId="7" pageNumber="154" pagination="291 - 307" refId="ref16478" refString="Bullock, R. C. (1985) The Stenoplax limaciformis (Sowerby, 1832) species complex in the New World (Mollusca: Polyplacophora: Ischnochitonidae). The Veliger, 27 (3), 291 - 307." type="journal article" year="1985">Bullock (1985)</bibRefCitation>
recognized the Caribbean
<taxonomicName id="36FB4D2AE4505513D548706B73ACF9C3" pageId="7" pageNumber="154">
<emphasis id="C38FEABBE4505513D548706B76D8F9E7" box="[1326,1436,1582,1608]" italics="true" pageId="7" pageNumber="154">Stenoplax</emphasis>
species
</taxonomicName>
including
<taxonomicName id="36FB4D2AE4505513D10270167154F9C3" baseAuthorityName="G. B. Sowerby I" baseAuthorityYear="1832" box="[356,528,1618,1645]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="limaciformis">
<emphasis id="C38FEABBE4505513D10270167154F9C3" box="[356,528,1618,1645]" italics="true" pageId="7" pageNumber="154">S. limaciformis</emphasis>
</taxonomicName>
from the Pacific as a complex of “sister species&quot;. The phylogeny of this genus requires more indepth studies that analyze morphological characteristics and DNA regions of more individuals of the species that constitute this genus.
</paragraph>
<paragraph id="F14436A9E4505513D0A170FA7790F8EB" blockId="7.[151,1437,1366,1861]" pageId="7" pageNumber="154">
Due to the absence of
<taxonomicName id="36FB4D2AE4505513D1A070FA7135F977" baseAuthorityName="G. B. Sowerby I" baseAuthorityYear="1832" box="[454,625,1726,1753]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="limaciformis">
<emphasis id="C38FEABBE4505513D1A070FA7290F976" box="[454,468,1727,1753]" italics="true" pageId="7" pageNumber="154">S</emphasis>
.
<emphasis id="C38FEABBE4505513D18570FB7135F977" box="[483,625,1726,1752]" italics="true" pageId="7" pageNumber="154">limaciformis</emphasis>
</taxonomicName>
in the samples collected at higher latitudes, the present study considers Bahía San Carlos, Sonora as the northern limit of this species.
<bibRefCitation id="956A4B58E4505513D32D70A770B0F952" author="Bullock, R. C." box="[843,1012,1762,1789]" pageId="7" pageNumber="154" pagination="291 - 307" refId="ref16478" refString="Bullock, R. C. (1985) The Stenoplax limaciformis (Sowerby, 1832) species complex in the New World (Mollusca: Polyplacophora: Ischnochitonidae). The Veliger, 27 (3), 291 - 307." type="journal article" year="1985">Bullock (1985)</bibRefCitation>
reported that the northern limit of this species is located at Puertecitos and
<collectingRegion id="333FF84BE4505513D251714271FBF88F" box="[567,703,1798,1825]" country="Peru" name="La Libertad" pageId="7" pageNumber="154">La Libertad</collectingRegion>
, Baja California. However,
<bibRefCitation id="956A4B58E4505513D39B71427659F88F" author="Kaas, P. &amp; Van Belle, R." box="[1021,1309,1798,1825]" pageId="7" pageNumber="154" refId="ref18612" refString="Kaas, P. &amp; Van Belle, R. (1987) Monograph of Living Chitons (Mollusca: Polyplacophora). Vol. 3. Suborder Ischnochitonidae. Chaetopleurinae and Ischnochitoninae. E. J. Brill, Leiden, 302 pp. https: // doi. org / 10.1163 / 9789004431690" type="book" year="1987">Kaas &amp; Van Belle (1987)</bibRefCitation>
mentioned that the distribution of
<taxonomicName id="36FB4D2AE4505513D1FE716E7106F8EB" baseAuthorityName="G. B. Sowerby I" baseAuthorityYear="1832" box="[408,578,1834,1861]" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" kingdom="Animalia" order="Chitonida" pageId="7" pageNumber="154" phylum="Mollusca" rank="species" species="limaciformis">
<emphasis id="C38FEABBE4505513D1FE716E72E2F8EA" box="[408,422,1835,1861]" italics="true" pageId="7" pageNumber="154">S</emphasis>
.
<emphasis id="C38FEABBE4505513D1D2716F7106F8EB" box="[436,578,1834,1860]" italics="true" pageId="7" pageNumber="154">limaciformis</emphasis>
</taxonomicName>
extends from the Gulf of California to Lobos Island,
<collectingCountry id="89EC7639E4505513D4FF716F7794F8EB" box="[1177,1232,1834,1860]" name="Peru" pageId="7" pageNumber="154">Perú</collectingCountry>
.
</paragraph>
</subSubSection>
</treatment>
</document>