| Citation | Rice, M.E., J. Pirraino, H.F. Reichard and H.M. Swain, 1995 A Survey of the Sipuncula of the Indian River Lagoon. p. 128-135. In Biodiversity of the Indian River Lagoon Conference. Fort Pierce, Florida. |
| Ref. | 1778 Rice, M.E., J. Pirraino, H.F. Reichard and H.M. Swain, 1995 |
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| Named Used as Valid | Phascolion cryptum |
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| Distribution |