MolluscaBase taxon details
Rissoina sawanensis Yokoyama, 1926 †
816533 (urn:lsid:marinespecies.org:taxname:816533)
accepted
Species
marine, brackish, fresh, terrestrial
fossil only
Yokoyama M. (1926). Fossil shells from Sado. <em>Journal of the Faculty of Science, Imperial University of Tokyo. Section II, Geology, Mineralogy, Geography, Seismology.</em> 1(8): 249–312, pls. 32–37., available online at http://umdb.um.u-tokyo.ac.jp/DKoseibu/pdf/Ref_0483_.pdf
page(s): 277 [details] Available for editors
[request]
page(s): 277 [details] Available for editors
[request]
Taxonomic remark Ichikawa (1983) lists the type number (CM23147) and places this species in Zebina (Moerchiella?).
Taxonomy Originally described as Rissoina (Morchiella) [= Moerchiella] s.
Taxonomic remark Ichikawa (1983) lists the type number (CM23147) and places this species in Zebina (Moerchiella?). [details]
Taxonomy Originally described as Rissoina (Morchiella) [= Moerchiella] s.
Taxonomy Originally described as Rissoina (Morchiella) [= Moerchiella] s. [details]
MolluscaBase eds. (2025). MolluscaBase. Rissoina sawanensis Yokoyama, 1926 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=816533 on 2025-09-16
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original description
Yokoyama M. (1926). Fossil shells from Sado. <em>Journal of the Faculty of Science, Imperial University of Tokyo. Section II, Geology, Mineralogy, Geography, Seismology.</em> 1(8): 249–312, pls. 32–37., available online at http://umdb.um.u-tokyo.ac.jp/DKoseibu/pdf/Ref_0483_.pdf
page(s): 277 [details] Available for editors [request]
additional source Makiyama, J. (1958). Matajiro Yokoyama's Tertiary fossils from various localities in Japan. Part II. <em>Palaeontological Society of Japan Special Papers.</em> 4: 1-6, pls. 25-57.
page(s): 5; plate 46, fig. 7 [details]
additional source Ichikawa, T. 1983. Catalogue of Type and Illustrated Specimens in the Department of Historical Geology and Palaeontology of the University Museum, University of Tokyo. Part 2. Cenozoic Fossils and Recent Specimens. University Museum, University of Tokyo Material Reports No. 9. iv + 536 pp.
page(s): 52 [details]
page(s): 277 [details] Available for editors
[request]additional source Makiyama, J. (1958). Matajiro Yokoyama's Tertiary fossils from various localities in Japan. Part II. <em>Palaeontological Society of Japan Special Papers.</em> 4: 1-6, pls. 25-57.
page(s): 5; plate 46, fig. 7 [details]
additional source Ichikawa, T. 1983. Catalogue of Type and Illustrated Specimens in the Department of Historical Geology and Palaeontology of the University Museum, University of Tokyo. Part 2. Cenozoic Fossils and Recent Specimens. University Museum, University of Tokyo Material Reports No. 9. iv + 536 pp.
page(s): 52 [details]
