| Citation | Smithsonian Institution, 2016 Prionospio steenstrupi Malmgren, 1867. http://collections.si.edu/search/results.htm?q=Prionospio%09steenstrupi [Accessed 07/14/2016]. |
| Ref. | 109391 Smithsonian Institution, 2016 |
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| Named Used as Valid | Prionospio steenstrupi |
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