Morphometrics of teratological specimens from two species of Plaxiphora (Mollusca, Polyplacophora) from the South Pacific Ocean
Teratology is a congenital abnormality commonly observed in the shells of mollusks. A new case of teratology in polyplacophorans is documented. This corresponds to a new case of coalescence in the species Plaxiphora aurata , an extant marine mollusk from Punta Arenas (53°S), in southern Chile. In th...
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| Veröffentlicht in: | Zoomorphology 2023-09, Vol.142 (3), p.279-283 |
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| creator | Torres, Felipe I. Gálvez-Herrera, Óscar Ibáñez, Christian M. |
| description | Teratology is a congenital abnormality commonly observed in the shells of mollusks. A new case of teratology in polyplacophorans is documented. This corresponds to a new case of coalescence in the species
Plaxiphora aurata
, an extant marine mollusk from Punta Arenas (53°S), in southern Chile. In this specimen, the third and fourth shell plates were fused together, causing the fourth plate to be considerably reduced. To compare with another species of the genus several specimens of
P. mercatoris
, including a teratological specimen, were measured. Morphometrics suggest that chitons are similar in size and shape compared to normal individuals of the same species. Similar cases from the same region were also compared, where teratological individuals (with both hypomerism and coalescence) reached lengths of several centimeters, surviving for over several years. |
| doi_str_mv | 10.1007/s00435-023-00607-6 |
| format | Article |
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Plaxiphora aurata
, an extant marine mollusk from Punta Arenas (53°S), in southern Chile. In this specimen, the third and fourth shell plates were fused together, causing the fourth plate to be considerably reduced. To compare with another species of the genus several specimens of
P. mercatoris
, including a teratological specimen, were measured. Morphometrics suggest that chitons are similar in size and shape compared to normal individuals of the same species. Similar cases from the same region were also compared, where teratological individuals (with both hypomerism and coalescence) reached lengths of several centimeters, surviving for over several years.</description><identifier>ISSN: 0720-213X</identifier><identifier>EISSN: 1432-234X</identifier><identifier>DOI: 10.1007/s00435-023-00607-6</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Animal Anatomy ; Animal Systematics/Taxonomy/Biogeography ; Biomedical and Life Sciences ; Coalescence ; Developmental Biology ; Evolutionary Biology ; Histology ; Life Sciences ; Malformations ; Marine molluscs ; Mollusca ; Mollusks ; Morphology ; Morphometry ; Museums ; Original Paper ; Plaxiphora ; Shellfish ; Survival ; Teratology</subject><ispartof>Zoomorphology, 2023-09, Vol.142 (3), p.279-283</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-cc13232b3249b0d3a29d965d9207faeed03e92b6506599e0ee47b8c75860bcc63</citedby><cites>FETCH-LOGICAL-c319t-cc13232b3249b0d3a29d965d9207faeed03e92b6506599e0ee47b8c75860bcc63</cites><orcidid>0000-0003-2518-6617 ; 0000-0002-7390-2617</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00435-023-00607-6$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00435-023-00607-6$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27923,27924,41487,42556,51318</link.rule.ids></links><search><creatorcontrib>Torres, Felipe I.</creatorcontrib><creatorcontrib>Gálvez-Herrera, Óscar</creatorcontrib><creatorcontrib>Ibáñez, Christian M.</creatorcontrib><title>Morphometrics of teratological specimens from two species of Plaxiphora (Mollusca, Polyplacophora) from the South Pacific Ocean</title><title>Zoomorphology</title><addtitle>Zoomorphology</addtitle><description>Teratology is a congenital abnormality commonly observed in the shells of mollusks. A new case of teratology in polyplacophorans is documented. This corresponds to a new case of coalescence in the species
Plaxiphora aurata
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P. mercatoris
, including a teratological specimen, were measured. Morphometrics suggest that chitons are similar in size and shape compared to normal individuals of the same species. 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A new case of teratology in polyplacophorans is documented. This corresponds to a new case of coalescence in the species
Plaxiphora aurata
, an extant marine mollusk from Punta Arenas (53°S), in southern Chile. In this specimen, the third and fourth shell plates were fused together, causing the fourth plate to be considerably reduced. To compare with another species of the genus several specimens of
P. mercatoris
, including a teratological specimen, were measured. Morphometrics suggest that chitons are similar in size and shape compared to normal individuals of the same species. Similar cases from the same region were also compared, where teratological individuals (with both hypomerism and coalescence) reached lengths of several centimeters, surviving for over several years.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00435-023-00607-6</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0003-2518-6617</orcidid><orcidid>https://orcid.org/0000-0002-7390-2617</orcidid></addata></record> |
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| subjects | Animal Anatomy Animal Systematics/Taxonomy/Biogeography Biomedical and Life Sciences Coalescence Developmental Biology Evolutionary Biology Histology Life Sciences Malformations Marine molluscs Mollusca Mollusks Morphology Morphometry Museums Original Paper Plaxiphora Shellfish Survival Teratology |
| title | Morphometrics of teratological specimens from two species of Plaxiphora (Mollusca, Polyplacophora) from the South Pacific Ocean |
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