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<document id="3968C7402258DFE59D59FDFC06611B61" ID-DOI="10.11646/zootaxa.5296.2.2" ID-ISSN="1175-5326" ID-Zenodo-Dep="7973065" ID-ZooBank="624273A6-3028-42C2-ABE2-A18BBF828156" IM.bibliography_approvedBy="julia" IM.illustrations_approvedBy="julia" IM.materialsCitations_approvedBy="julia" IM.metadata_approvedBy="felipe" IM.tables_approvedBy="julia" IM.taxonomicNames_approvedBy="julia" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="julia" checkinTime="1685085730506" checkinUser="plazi" docAuthor="Reyes-Gómez, Adriana, Vargas-Ponce, Ofelia, Galván-Villa, Cristian, Salgado-Barragán, José, Esqueda-González, Ma. Del Carmen &amp; Ríos-Jara, Eduardo" docDate="2023" docId="795287BFE4535510D0F1725F7081F820" docLanguage="en" docName="zootaxa.5296.2.2.pdf" docOrigin="Zootaxa 5296 (2)" docSource="http://dx.doi.org/10.11646/zootaxa.5296.2.2" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Ischnochiton guatemalensis Thiele 1909" docType="treatment" docVersion="5" lastPageNumber="151" masterDocId="856BFFC7E4575514D06676457344FFAF" masterDocTitle="Inventory of chiton species (Polyplacophora) from the rocky intertidal of the Northern Gulf of California, with an illustrated taxonomic key" masterLastPageNumber="178" masterPageNumber="147" pageNumber="151" updateTime="1685370752060" updateUser="julia" zenodo-license-document="CLOSED">
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<mods:title id="7FBB78FC6F4E841EF3DCE4F0B4DAF3C9">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="2672CA7BBF98B3D1D812841FAA23D5A1">Vargas-Ponce, Ofelia</mods:namePart>
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<mods:affiliation id="022E9BEC49D09BFDCACEE07C1C546ADC">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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<mods:namePart id="7BCBA96F569462547EA4EAB677F3BFAF">Esqueda-González, Ma. Del Carmen</mods:namePart>
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<paragraph id="F14436A9E4535510D0F1725F71CEFB9B" blockId="4.[151,650,1050,1113]" box="[151,650,1050,1077]" pageId="4" pageNumber="151">
<heading id="AA0C81C5E4535510D0F1725F71CEFB9B" bold="true" box="[151,650,1050,1077]" fontSize="11" level="1" pageId="4" pageNumber="151" reason="1">
<taxonomicName id="36FB4D2AE4535510D0F1725F71CEFB9B" ID-CoL="3Q4N7" authority="Thiele, 1909" authorityName="Thiele" authorityYear="1909" box="[151,650,1050,1077]" class="Polyplacophora" family="Ischnochitonidae" genus="Ischnochiton" kingdom="Animalia" order="Chitonida" pageId="4" pageNumber="151" phylum="Mollusca" rank="species" species="guatemalensis">
<emphasis id="C38FEABBE4535510D0F1725F71CEFB9B" bold="true" box="[151,650,1050,1077]" pageId="4" pageNumber="151">
<emphasis id="C38FEABBE4535510D0F1725F72AFFB9A" bold="true" box="[151,491,1050,1077]" italics="true" pageId="4" pageNumber="151">Ischnochiton guatemalensis</emphasis>
<bibRefCitation id="956A4B58E4535510D194725F71CEFB9B" author="Thiele, J." box="[498,650,1050,1076]" pageId="4" pageNumber="151" pagination="1 - 70" refId="ref20205" refString="Thiele, J. (1909) Revision des Systems der Chitonen. Zoologica Stuttg, 22 (1), 1 - 70. https: // doi. org / 10.5962 / bhl. title. 11245" type="journal article" year="1909">Thiele, 1909</bibRefCitation>
</emphasis>
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<subSubSection id="B9E16522E4535510D0F1727A722BFBF6" box="[151,367,1087,1113]" pageId="4" pageNumber="151" type="description">
<paragraph id="F14436A9E4535510D0F1727A722BFBF6" blockId="4.[151,650,1050,1113]" box="[151,367,1087,1113]" pageId="4" pageNumber="151">
(
<figureCitation id="69C02A2CE4535510D0F9727A7264FBF6" box="[159,288,1087,1113]" 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="4" pageNumber="151">Figures 2A</figureCitation>
,
<figureCitation id="69C02A2CE4535510D14A727A7223FBF6" box="[300,359,1087,1113]" 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="4" pageNumber="151">4AI</figureCitation>
)
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<treatmentCitationGroup id="D1EB1187E4535510D0F172C6778AFB34" box="[151,1230,1155,1180]" pageId="4" pageNumber="151">
<treatmentCitation id="705A10B8E4535510D0F172C671C5FB34" author="Thiele, J." box="[151,641,1155,1179]" page="56" pageId="4" pageNumber="151" year="1909">
<taxonomicName id="36FB4D2AE4535510D0F172C671C5FB34" ID-CoL="3Q4N7" authority="Thiele, 1909: 51 - 56" authorityName="Thiele" authorityPageNumber="51 - 56" authorityYear="1909" box="[151,641,1155,1179]" class="Polyplacophora" family="Ischnochitonidae" genus="Ischnochiton" kingdom="Animalia" order="Chitonida" pageId="4" pageNumber="151" phylum="Mollusca" rank="species" species="guatemalensis">
<emphasis id="C38FEABBE4535510D0F172C672F5FB34" box="[151,433,1155,1179]" italics="true" pageId="4" pageNumber="151">Ischnochiton guatemalensis</emphasis>
<bibRefCitation id="956A4B58E4535510D1DE72C671C5FB34" author="Thiele, J." box="[440,641,1155,1179]" pageId="4" pageNumber="151" pagination="1 - 70" refId="ref20205" refString="Thiele, J. (1909) Revision des Systems der Chitonen. Zoologica Stuttg, 22 (1), 1 - 70. https: // doi. org / 10.5962 / bhl. title. 11245" type="journal article" year="1909">Thiele, 1909:5156</bibRefCitation>
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. Chresonymy and synonymy in
<bibRefCitation id="956A4B58E4535510D3A172C1778EFB34" author="Kaas, P. &amp; Van Belle, R." box="[967,1226,1155,1179]" pageId="4" pageNumber="151" refId="ref18667" refString="Kaas, P. &amp; Van Belle, R. (1990) Monograph of Living Chitons (Mollusca: Polyplacophora). Vol. 4. Suborder Ischnochitonina: Ischnochitonidae: Ischnochitoninae. E. J. Brill, Leiden, 298 pp. https: // doi. org / 10.1163 / 9789004431706" type="book" year="1990">Kaas &amp; Van Belle (1990)</bibRefCitation>
.
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</paragraph>
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<paragraph id="F14436A9E4535510D0F1728C7006FB4B" blockId="4.[151,1437,1225,1936]" box="[151,834,1225,1252]" pageId="4" pageNumber="151">
<emphasis id="C38FEABBE4535510D0F1728C7201FB4C" bold="true" box="[151,325,1225,1251]" pageId="4" pageNumber="151">Type material.</emphasis>
<materialsCitation id="41933CF4E4535510D12A728F77F1FAA8" collectionCode="ZMB" country="El Salvador" location="Champerico" municipality="Acajutla" pageId="4" pageNumber="151" specimenCode="Moll. 102027" specimenCount="1" typeStatus="lectotype">
<typeStatus id="2E40880BE4535510D12A728F72F8FB4B" box="[332,444,1226,1252]" pageId="4" pageNumber="151">Lectotype</typeStatus>
<collectionCode id="97EAAE6CE4535510D1A5728F7144FB4B" box="[451,512,1226,1252]" collectionName="Germany, Berlin, Museum fuer Naturkunde der Humboldt-Universitaet" country="Germany" httpUri="http://grbio.org/cool/8syf-d21i" name="Museum für Naturkunde Berlin (Zoological Collections)" pageId="4" pageNumber="151" type="Museum">ZMB</collectionCode>
<specimenCode id="A15D9ED2E4535510D260728C71DBFB4C" box="[518,671,1225,1251]" pageId="4" pageNumber="151">Moll. 102027</specimenCode>
(
<bibRefCitation id="956A4B58E4535510D2C8728C7071FB4B" author="Kilias, R." box="[686,821,1225,1252]" pageId="4" pageNumber="151" pagination="155 - 170" refId="ref18855" refString="Kilias, R. (1995) Polyplacophora-Typen und-Typoide (Mollusca) im Zoologischen Museum in Berlin. Mitteilungen aus dem Zoologischen Museum in Berlin, 71, 155 - 170. https: // doi. org / 10.1002 / mmnz. 19950710118" type="journal article" year="1995">Kilias 1995</bibRefCitation>
).
<paragraph id="F14436A9E4535510D0A172A877FDFAA8" blockId="4.[151,1437,1225,1936]" box="[199,1209,1261,1288]" pageId="4" pageNumber="151">
<emphasis id="C38FEABBE4535510D0A172A87222FAA8" bold="true" box="[199,358,1261,1287]" pageId="4" pageNumber="151">Type locality.</emphasis>
<location id="F4246072E4535510D10A72A872BCFAA8" LSID="urn:lsid:plazi:treatment:795287BFE4535510D0F1725F7081F820:F4246072E4535510D10A72A872BCFAA8" box="[364,504,1261,1287]" country="El Salvador" municipality="Acajutla" name="Champerico" pageId="4" pageNumber="151">Champerico</location>
, Guatemala or Acajutla,
<collectingCountry id="89EC7639E4535510D36B72A870D5FAA8" box="[781,913,1261,1287]" name="El Salvador" pageId="4" pageNumber="151">El Salvador</collectingCountry>
(
<bibRefCitation id="956A4B58E4535510D3F972A877E9FAA8" author="Kaas, P. &amp; Van Belle, R." box="[927,1197,1261,1288]" pageId="4" pageNumber="151" refId="ref18667" refString="Kaas, P. &amp; Van Belle, R. (1990) Monograph of Living Chitons (Mollusca: Polyplacophora). Vol. 4. Suborder Ischnochitonina: Ischnochitonidae: Ischnochitoninae. E. J. Brill, Leiden, 298 pp. https: // doi. org / 10.1163 / 9789004431706" type="book" year="1990">Kaas &amp; Van Belle 1990</bibRefCitation>
).
</paragraph>
</materialsCitation>
</paragraph>
<paragraph id="F14436A9E4535510D0A17354706EFA83" blockId="4.[151,1437,1225,1936]" box="[199,810,1297,1324]" pageId="4" pageNumber="151">
<emphasis id="C38FEABBE4535510D0A1735472F5FA84" bold="true" box="[199,433,1297,1323]" pageId="4" pageNumber="151">Material examined.</emphasis>
Two specimens, BL
<quantity id="36039B4CE4535510D2FA73547062FA83" box="[668,806,1297,1324]" metricMagnitude="-3" metricUnit="m" metricValue="7.449999999999999" metricValueMax="8.1" metricValueMin="6.8" pageId="4" pageNumber="151" unit="mm" value="7.449999999999999" valueMax="8.1" valueMin="6.8">6.88.1 mm</quantity>
.
</paragraph>
<paragraph id="F14436A9E4535510D0A1737072C4FADC" blockId="4.[151,1437,1225,1936]" pageId="4" pageNumber="151">
<emphasis id="C38FEABBE4535510D0A17370726EFAE0" bold="true" box="[199,298,1333,1359]" pageId="4" pageNumber="151">Habitat.</emphasis>
Under big, semihumid rocks. The specimens were found on rocks buried in sand with brown and red crusty algae patches.
</paragraph>
</subSubSection>
<subSubSection id="B9E16522E4535510D0A173387081F820" pageId="4" pageNumber="151" type="discussion">
<paragraph id="F14436A9E4535510D0A17338707AF9AC" blockId="4.[151,1437,1225,1936]" pageId="4" pageNumber="151">
<emphasis id="C38FEABBE4535510D0A17338727FFA38" bold="true" box="[199,315,1405,1431]" pageId="4" pageNumber="151">Remarks.</emphasis>
The examination of
<taxonomicName id="36FB4D2AE4535510D25073387036FA38" authorityName="Thiele" authorityYear="1909" box="[566,882,1405,1431]" class="Polyplacophora" family="Ischnochitonidae" genus="Ischnochiton" kingdom="Animalia" order="Chitonida" pageId="4" pageNumber="151" phylum="Mollusca" rank="species" species="guatemalensis">
<emphasis id="C38FEABBE4535510D25073387036FA38" box="[566,882,1405,1431]" italics="true" pageId="4" pageNumber="151">Ischnochiton guatemalensis</emphasis>
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revealed microgranular sculpture (
<figureCitation id="69C02A2CE4535510D56A733876D0FA38" box="[1292,1428,1405,1431]" 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="4" pageNumber="151">Figs. 4AC</figureCitation>
) of valves, lateral areas somewhat raised (
<figureCitation id="69C02A2CE4535510D21573E4718AFA14" box="[627,718,1441,1467]" 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="4" pageNumber="151">Fig. 4B</figureCitation>
). Each microgranule with 1619 microaesthetes (
<figureCitation id="69C02A2CE4535510D56F73E476D4FA14" box="[1289,1424,1441,1467]" 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="4" pageNumber="151">Figs. 4DE</figureCitation>
). Girdle dorsal scales, somewhat bent with 710 longitudinal ribs which converge distally (
<figureCitation id="69C02A2CE4535510D41973807646FA70" box="[1151,1282,1477,1503]" 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="4" pageNumber="151">Figs. 4FG</figureCitation>
). Radula with bicuspid major lateral and narrow central tooth (
<figureCitation id="69C02A2CE4535510D2D273AC7076F9AC" box="[692,818,1513,1539]" 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="4" pageNumber="151">Figs. 4HI</figureCitation>
).
</paragraph>
<paragraph id="F14436A9E4535510D0A170487081F820" blockId="4.[151,1437,1225,1936]" pageId="4" pageNumber="151">
According to
<bibRefCitation id="956A4B58E4535510D107704B713CF988" author="Kaas, P. &amp; Van Belle, R." box="[353,632,1549,1576]" pageId="4" pageNumber="151" refId="ref18667" refString="Kaas, P. &amp; Van Belle, R. (1990) Monograph of Living Chitons (Mollusca: Polyplacophora). Vol. 4. Suborder Ischnochitonina: Ischnochitonidae: Ischnochitoninae. E. J. Brill, Leiden, 298 pp. https: // doi. org / 10.1163 / 9789004431706" type="book" year="1990">Kaas &amp;Van Belle (1990)</bibRefCitation>
,
<taxonomicName id="36FB4D2AE4535510D2E5704B707FF988" authorityName="Thiele" authorityYear="1909" box="[643,827,1549,1576]" class="Polyplacophora" family="Ischnochitonidae" genus="Ischnochiton" kingdom="Animalia" order="Chitonida" pageId="4" pageNumber="151" phylum="Mollusca" rank="species" species="guatemalensis">
<emphasis id="C38FEABBE4535510D2E5704B71C8F988" box="[643,652,1550,1575]" italics="true" pageId="4" pageNumber="151">I</emphasis>
.
<emphasis id="C38FEABBE4535510D2FD7048707FF988" box="[667,827,1549,1575]" italics="true" pageId="4" pageNumber="151">guatemalensis</emphasis>
</taxonomicName>
shows a continuous distribution in the intertidal, from the Gulf of California to
<collectingCountry id="89EC7639E4535510D1CC70747163F9E4" box="[426,551,1585,1611]" name="Guatemala" pageId="4" pageNumber="151">Guatemala</collectingCountry>
. Nevertheless, it has not been registered since
<bibRefCitation id="956A4B58E4535510D44E7077767DF9E4" author="Kaas, P. &amp; Van Belle, R." box="[1064,1337,1585,1612]" pageId="4" pageNumber="151" refId="ref18667" refString="Kaas, P. &amp; Van Belle, R. (1990) Monograph of Living Chitons (Mollusca: Polyplacophora). Vol. 4. Suborder Ischnochitonina: Ischnochitonidae: Ischnochitoninae. E. J. Brill, Leiden, 298 pp. https: // doi. org / 10.1163 / 9789004431706" type="book" year="1990">Kaas &amp;Van Belle (1990)</bibRefCitation>
reported it in their monograph of worldwide living chitons, nor in recent studies such as the ones performed about the fauna from Mazatlán, Sinaloa (OrtizArellano &amp;
<collectingCountry id="89EC7639E4535510D2E5703C718CF93C" box="[643,712,1657,1683]" name="Indonesia" pageId="4" pageNumber="151">Flores</collectingCountry>
Campaña 2008), the Mexican Tropical Pacific (MTP) (Jalisco, Guerrero and Oaxaca) (ReyesGómez
<emphasis id="C38FEABBE4535510D22170DB7133F918" box="[583,631,1693,1719]" italics="true" pageId="4" pageNumber="151">et al</emphasis>
. 2010;
<bibRefCitation id="956A4B58E4535510D2AF70D8709EF918" author="Flores-Garza, R. L. &amp; Galeana-Rebolledo, L. &amp; Reyes-Gomez, A. &amp; Garcia-Ibanez, S. &amp; Torreblanca-Ramirez, C. &amp; Flores-Rodriguez, P. &amp; Valdes-Gonzalez, A." box="[713,986,1693,1720]" pageId="4" pageNumber="151" pagination="192 - 201" refId="ref17710" refString="Flores-Garza, R. L., Galeana-Rebolledo, L., Reyes-Gomez, A., Garcia-Ibanez, S., Torreblanca-Ramirez, C., Flores-Rodriguez, P. &amp; Valdes-Gonzalez, A. (2012) Polyplacophora species richness, composition and distribution of its community associated with the intertidal rocky substrate in the marine priority region No. 32 in Guerrero, Mexico. Open Journal of Ecology, 24, 192 - 201. https: // doi. org / 10.4236 / oje. 2012.24023" type="journal article" year="2012">
Flores-Garza
<emphasis id="C38FEABBE4535510D30770DB70D6F918" box="[865,914,1693,1719]" italics="true" pageId="4" pageNumber="151">et al</emphasis>
. 2012
</bibRefCitation>
; GaleanaRebolledo
<emphasis id="C38FEABBE4535510D4A170DB77B3F918" box="[1223,1271,1693,1719]" italics="true" pageId="4" pageNumber="151">et al</emphasis>
. 2014; ReyesGómez
<emphasis id="C38FEABBE4535510D0887087725AF974" box="[238,286,1729,1755]" italics="true" pageId="4" pageNumber="151">et al</emphasis>
. 2022) and the coast of
<collectingCountry id="89EC7639E4535510D245708471E2F974" box="[547,678,1729,1755]" name="El Salvador" pageId="4" pageNumber="151">El Salvador</collectingCountry>
(García-Ríos
<emphasis id="C38FEABBE4535510D32770877035F974" box="[833,881,1729,1755]" italics="true" pageId="4" pageNumber="151">et al</emphasis>
. 2007). In the present study, we only obtained two individuals from both sites (Bahía la Choya, Puerto Peñasco), indicating that it may be a rare species (with respect to its abundance and occurrence) in the Northern Gulf of California. The absence of reports of
<taxonomicName id="36FB4D2AE4535510D4A1714F763BF88C" authorityName="Thiele" authorityYear="1909" box="[1223,1407,1801,1828]" class="Polyplacophora" family="Ischnochitonidae" genus="Ischnochiton" kingdom="Animalia" order="Chitonida" pageId="4" pageNumber="151" phylum="Mollusca" rank="species" species="guatemalensis">
<emphasis id="C38FEABBE4535510D4A1714F7794F88C" box="[1223,1232,1802,1827]" italics="true" pageId="4" pageNumber="151">I</emphasis>
.
<emphasis id="C38FEABBE4535510D4B9714C763BF88C" box="[1247,1407,1801,1827]" italics="true" pageId="4" pageNumber="151">guatemalensis</emphasis>
</taxonomicName>
in some regions of the Gulf and the MTP is also reflected in the lack of representative material of this species in the malacological collections. The report of this species from the northern Gulf of California represents the rediscovery of
<taxonomicName id="36FB4D2AE4535510D0D071337229F820" authorityName="Thiele" authorityYear="1909" box="[182,365,1909,1936]" class="Polyplacophora" family="Ischnochitonidae" genus="Ischnochiton" kingdom="Animalia" order="Chitonida" pageId="4" pageNumber="151" phylum="Mollusca" rank="species" species="guatemalensis">
<emphasis id="C38FEABBE4535510D0D0713373FBF820" box="[182,191,1910,1935]" italics="true" pageId="4" pageNumber="151">I</emphasis>
.
<emphasis id="C38FEABBE4535510D0AB71307229F820" box="[205,365,1909,1935]" italics="true" pageId="4" pageNumber="151">guatemalensis</emphasis>
</taxonomicName>
in this region after Kaas &amp; Van Belle's report (1990).
</paragraph>
</subSubSection>
</treatment>
</document>