| Citation | Smithsonian Institution, 2016 Circulus semisculptus. http://collections.si.edu/search/results.htm?q=Circulus%09semisculptus [Accessed 14/11/2016]. |
| Ref. | 113212 Smithsonian Institution, 2016 |
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| Named Used as Valid | Circulus semisculptus |
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