Distribution

Greater Caribbean from Florida to Venezuela.

Primary references

• Keferstein, W.M. 1865. Beiträge zur anatomischen und systematischen Kenntnis der Sipunculiden. Nachrichten von der K. Gesellschaft der Wissenschaften und der Georg-Augusts-Universitat. 12: 189-209. Google Books Reference page.  [See p. 199; original description]
• Silva-Morales, I. 2020. Reinstatement of Phascolosoma (Phascolosoma) varians Keferstein, 1865 (Sipuncula: Phascolosomatidae) based on morphological and molecular data. PeerJ. 8: e10238. DOI: 10.7717/peerj.10238 Reference page.  [redescription, reinstatement]

Additional references

• Keferstein, W.M. 1865. Beiträge zur anatomischen und systematischen Kenntnis der Sipunculiden. Zeitschrift für wissenschaftliche Zoologie. 15: 404-445. BHL Reference page.  [See p. 424-426, pl. XXXII fig. 22]

Links

• Phascolosoma varians in the World Register of Marine Species
• BHL bibliography
• Hassler, M. {{{1}}}. Phascolosoma varians. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. {{{1}}}. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: {{{1}}} {{{2}}} {{{3}}}. Reference page. 
• Phascolosoma varians – Taxon details on Encyclopedia of Life (EOL).
• Global Biodiversity Information Facility. 2019. GBIF Backbone Taxonomy. Checklist dataset. Taxon: Phascolosoma varians.
• ION

For more multimedia, look at Phascolosoma varians on Wikimedia Commons.