| Citation | Smithsonian Institution, 2015 Sipunculus robustus Keferstein, 1865. http://collections.si.edu/search/results.htm?q=Sipunculus%09robustus [Accessed 01/16/2015]. |
| Ref. | 98864 Smithsonian Institution, 2015 |
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| Named Used as Valid | Sipunculus robustus |
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