The wide distribution of this species has recently been challenged by revealing misidentifications of specimens from habitats far from the type locality in the Northern Atlantic. One such example of a separate species is Eupolymnia magnifica (Webster, 1884) from the Grand Caribbean region shown by Londoño-Mesa (2009).
- Londoño-Mesa, M. H. (2009). Terebellidae (Polychaeta: Terebellida) from the Grand Caribbean region. Zootaxa, 2320, 1-93.
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