Maximum-likelihood (ML) tree for 2343 bp inferred from combined partial mitochondrial 16S rDNA (313 bp), nuclear 18S ribosomal DNA (rDNA) (1,725 bp), 28S rDNA (305 bp) from nine spionid polychaetes. Numbers above the branch indicate ML bootstrap values from 1000 replications. The sequence of Boccardia proboscidea was used for outgroup rooting.

 
 
  Part of: Lee GH, Min G-S (2022) Rhynchospio aciliata sp. nov., a new spionid species (Annelida, Spionidae) from the Korea Strait. ZooKeys 1100: 191-205. https://doi.org/10.3897/zookeys.1100.80077