New records of teratology in Chiton cumingsii and Chiton granosus (Mollusca: Polyplacophora) from the Peruvian coast
Abstract This paper presents the first teratological records for Peruvian waters of Chiton cumingsii Frembly, 1827 and Chiton granosus Frembly, 1827, both species very common in the Southeast Pacific. We found five abnormal individuals in C. cumingsii, and two in C. granosus, including the first rec...
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| Format: | Article |
| Language: | English |
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Universidade de São Paulo
2023-12-01
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| Series: | Papéis Avulsos de Zoologia |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492023000100236&lng=en&tlng=en |
| _version_ | 1797394262953820160 |
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| author | Luz Cardich-Becerra Alejandro Mendivil Franz Cardoso |
| author_facet | Luz Cardich-Becerra Alejandro Mendivil Franz Cardoso |
| author_sort | Luz Cardich-Becerra |
| collection | DOAJ |
| description | Abstract This paper presents the first teratological records for Peruvian waters of Chiton cumingsii Frembly, 1827 and Chiton granosus Frembly, 1827, both species very common in the Southeast Pacific. We found five abnormal individuals in C. cumingsii, and two in C. granosus, including the first recorded splitting abnormalities for these species. An individual of C. cumingsii with a new insertion plate in the tail valve was also observed. We observed that splitting abnormalities in Polyplacophora can be classified as perfect or imperfect, depending on whether the splitted valves are clearly recognized as individual fragments or not. Coalescence between the splitted valves seems to be a common phenomenon, and this coalescence can be homogeneous or heterogeneous. As both species show a combination of hypomerism, coalescence and splitting, we suggest that they are probably interrelated and represent an attempt of the developmental mechanisms of chitons to overcome a valve malformation. |
| first_indexed | 2024-03-09T00:17:05Z |
| format | Article |
| id | doaj.art-4051e4b69a8840f58382d292f50cf8c1 |
| institution | Directory Open Access Journal |
| issn | 1807-0205 |
| language | English |
| last_indexed | 2024-03-09T00:17:05Z |
| publishDate | 2023-12-01 |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Papéis Avulsos de Zoologia |
| spelling | doaj.art-4051e4b69a8840f58382d292f50cf8c12023-12-12T07:50:00ZengUniversidade de São PauloPapéis Avulsos de Zoologia1807-02052023-12-016310.11606/1807-0205/2023.63.036New records of teratology in Chiton cumingsii and Chiton granosus (Mollusca: Polyplacophora) from the Peruvian coastLuz Cardich-Becerrahttps://orcid.org/0009-0002-0752-8070Alejandro Mendivilhttps://orcid.org/0000-0001-6593-3993Franz Cardosohttps://orcid.org/0000-0002-1562-7098Abstract This paper presents the first teratological records for Peruvian waters of Chiton cumingsii Frembly, 1827 and Chiton granosus Frembly, 1827, both species very common in the Southeast Pacific. We found five abnormal individuals in C. cumingsii, and two in C. granosus, including the first recorded splitting abnormalities for these species. An individual of C. cumingsii with a new insertion plate in the tail valve was also observed. We observed that splitting abnormalities in Polyplacophora can be classified as perfect or imperfect, depending on whether the splitted valves are clearly recognized as individual fragments or not. Coalescence between the splitted valves seems to be a common phenomenon, and this coalescence can be homogeneous or heterogeneous. As both species show a combination of hypomerism, coalescence and splitting, we suggest that they are probably interrelated and represent an attempt of the developmental mechanisms of chitons to overcome a valve malformation.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492023000100236&lng=en&tlng=enHypomerismSplittingCoalescenceChiton |
| spellingShingle | Luz Cardich-Becerra Alejandro Mendivil Franz Cardoso New records of teratology in Chiton cumingsii and Chiton granosus (Mollusca: Polyplacophora) from the Peruvian coast Papéis Avulsos de Zoologia Hypomerism Splitting Coalescence Chiton |
| title | New records of teratology in Chiton cumingsii and Chiton granosus (Mollusca: Polyplacophora) from the Peruvian coast |
| title_full | New records of teratology in Chiton cumingsii and Chiton granosus (Mollusca: Polyplacophora) from the Peruvian coast |
| title_fullStr | New records of teratology in Chiton cumingsii and Chiton granosus (Mollusca: Polyplacophora) from the Peruvian coast |
| title_full_unstemmed | New records of teratology in Chiton cumingsii and Chiton granosus (Mollusca: Polyplacophora) from the Peruvian coast |
| title_short | New records of teratology in Chiton cumingsii and Chiton granosus (Mollusca: Polyplacophora) from the Peruvian coast |
| title_sort | new records of teratology in chiton cumingsii and chiton granosus mollusca polyplacophora from the peruvian coast |
| topic | Hypomerism Splitting Coalescence Chiton |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492023000100236&lng=en&tlng=en |
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