MolluscaBase name details
Cylichna sibaensis Yamakawa, 1911 †
1844975 (urn:lsid:marinespecies.org:taxname:1844975)
unaccepted > junior subjective synonym
Species
marine, brackish, fresh, terrestrial
fossil only
Yamakawa, G. (1911). Descriptions of some fossil Opisthobranchia from the diluvial deposits of Japan. <em>Journal of the Geological Society of Tōkyō.</em> 18(212): 38-45; 47-52, pls 10-11., available online at https://doi.org/10.5575/geosoc.18.212_47
page(s): 48-49, pl. 11, figs 25-29 [details]
page(s): 48-49, pl. 11, figs 25-29 [details]
Type locality contained in Honshu
type locality contained in Honshu [details]
MolluscaBase eds. (2025). MolluscaBase. Cylichna sibaensis Yamakawa, 1911 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1844975 on 2026-03-17
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original description
Yamakawa, G. (1911). Descriptions of some fossil Opisthobranchia from the diluvial deposits of Japan. <em>Journal of the Geological Society of Tōkyō.</em> 18(212): 38-45; 47-52, pls 10-11., available online at https://doi.org/10.5575/geosoc.18.212_47
page(s): 48-49, pl. 11, figs 25-29 [details]
source of synonymy Oyama, K. (1973). Revision of Matajiro Yokoyama's type Mollusca from the Tertiary and Quarternary of the Kanto area. <em>Palaeontological Society of Japan Special Papers.</em> 17: 1-148 + 57 pls.
page(s): 69 [details] Available for editors
[request]
page(s): 48-49, pl. 11, figs 25-29 [details]
source of synonymy Oyama, K. (1973). Revision of Matajiro Yokoyama's type Mollusca from the Tertiary and Quarternary of the Kanto area. <em>Palaeontological Society of Japan Special Papers.</em> 17: 1-148 + 57 pls.
page(s): 69 [details] Available for editors
[request]
Present Inaccurate Introduced: alien Containing type locality
