New insights from museum specimens: a case of Viviparidae (Caenogastropoda: Mollusca) in Iwakawa’s collection preserved in the National Museum of Nature and Science, Tokyo
In this study, we clarify the classification of museum specimens of the family Viviparidae, which is composed of six species/subspecies in Japan, including three endangered species. We examined Viviparus sclateri specimens from the Tomotaro Iwakawa collection (1855-1933) in the National Museum of Na...
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| Format: | Article |
| Language: | English |
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Pensoft Publishers
2020-12-01
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| Series: | Biodiversity Data Journal |
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| Online Access: | https://bdj.pensoft.net/article/52233/download/pdf/ |
| _version_ | 1811333858964013056 |
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| author | Takumi Saito Osamu Kagawa |
| author_facet | Takumi Saito Osamu Kagawa |
| author_sort | Takumi Saito |
| collection | DOAJ |
| description | In this study, we clarify the classification of museum specimens of the family Viviparidae, which is composed of six species/subspecies in Japan, including three endangered species. We examined Viviparus sclateri specimens from the Tomotaro Iwakawa collection (1855-1933) in the National Museum of Nature and Science, Tokyo. The Iwakawa's collection was catalogued in 1919 and Viviparus sclateri, labelled with Naga-tanishi, the current Japanese name for H. longispira, which was, at the time, equivalent to Viviparus sclateri, was listed in this catalogue. The catalogue noted localities of Viviparus sclateri (Naga-tanishi) from outside Lake Biwa, including occurrences in Lake Kasumigaura and Lake Suwa. However, Heterogen longispira (Naga-tanishi) is currently considered to be endemic to Lake Biwa drainage. The actual status of Viviparus sclateri in Iwakawa (1919) has not been clarified until now.Our examination revealed that Viviparus sclateri from Iwakawa’s catalogue included H. japonica, H. longispira and Sinotaia quadrata histrica, based on current taxonomy. Specimens assigned to H. longispira occurred only in Lake Biwa drainage. Heterogen japonica was confirmed to be present in all lots and some H. japonica from Lake Suwa had a distinctive morphology. Sinotaia quadrata histrica was only confirmed to occur in Lake Suwa. Furthermore, some specimens from southern Lake Biwa and the Seta River had intermediate characteristics between H. japonica and H. longispira and their populations are currently almost extinct. |
| first_indexed | 2024-04-13T16:59:08Z |
| format | Article |
| id | doaj.art-f10a473ecd8740c28018e684e83ca592 |
| institution | Directory Open Access Journal |
| issn | 1314-2828 |
| language | English |
| last_indexed | 2024-04-13T16:59:08Z |
| publishDate | 2020-12-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | Biodiversity Data Journal |
| spelling | doaj.art-f10a473ecd8740c28018e684e83ca5922022-12-22T02:38:44ZengPensoft PublishersBiodiversity Data Journal1314-28282020-12-01813110.3897/BDJ.8.e5223352233New insights from museum specimens: a case of Viviparidae (Caenogastropoda: Mollusca) in Iwakawa’s collection preserved in the National Museum of Nature and Science, TokyoTakumi Saito0Osamu Kagawa1Toho UniversityTohoku UniversityIn this study, we clarify the classification of museum specimens of the family Viviparidae, which is composed of six species/subspecies in Japan, including three endangered species. We examined Viviparus sclateri specimens from the Tomotaro Iwakawa collection (1855-1933) in the National Museum of Nature and Science, Tokyo. The Iwakawa's collection was catalogued in 1919 and Viviparus sclateri, labelled with Naga-tanishi, the current Japanese name for H. longispira, which was, at the time, equivalent to Viviparus sclateri, was listed in this catalogue. The catalogue noted localities of Viviparus sclateri (Naga-tanishi) from outside Lake Biwa, including occurrences in Lake Kasumigaura and Lake Suwa. However, Heterogen longispira (Naga-tanishi) is currently considered to be endemic to Lake Biwa drainage. The actual status of Viviparus sclateri in Iwakawa (1919) has not been clarified until now.Our examination revealed that Viviparus sclateri from Iwakawa’s catalogue included H. japonica, H. longispira and Sinotaia quadrata histrica, based on current taxonomy. Specimens assigned to H. longispira occurred only in Lake Biwa drainage. Heterogen japonica was confirmed to be present in all lots and some H. japonica from Lake Suwa had a distinctive morphology. Sinotaia quadrata histrica was only confirmed to occur in Lake Suwa. Furthermore, some specimens from southern Lake Biwa and the Seta River had intermediate characteristics between H. japonica and H. longispira and their populations are currently almost extinct.https://bdj.pensoft.net/article/52233/download/pdf/Ancient lakeendangered speciesextinct populati |
| spellingShingle | Takumi Saito Osamu Kagawa New insights from museum specimens: a case of Viviparidae (Caenogastropoda: Mollusca) in Iwakawa’s collection preserved in the National Museum of Nature and Science, Tokyo Biodiversity Data Journal Ancient lake endangered species extinct populati |
| title | New insights from museum specimens: a case of Viviparidae (Caenogastropoda: Mollusca) in Iwakawa’s collection preserved in the National Museum of Nature and Science, Tokyo |
| title_full | New insights from museum specimens: a case of Viviparidae (Caenogastropoda: Mollusca) in Iwakawa’s collection preserved in the National Museum of Nature and Science, Tokyo |
| title_fullStr | New insights from museum specimens: a case of Viviparidae (Caenogastropoda: Mollusca) in Iwakawa’s collection preserved in the National Museum of Nature and Science, Tokyo |
| title_full_unstemmed | New insights from museum specimens: a case of Viviparidae (Caenogastropoda: Mollusca) in Iwakawa’s collection preserved in the National Museum of Nature and Science, Tokyo |
| title_short | New insights from museum specimens: a case of Viviparidae (Caenogastropoda: Mollusca) in Iwakawa’s collection preserved in the National Museum of Nature and Science, Tokyo |
| title_sort | new insights from museum specimens a case of viviparidae caenogastropoda mollusca in iwakawa s collection preserved in the national museum of nature and science tokyo |
| topic | Ancient lake endangered species extinct populati |
| url | https://bdj.pensoft.net/article/52233/download/pdf/ |
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