Synaphobranchus affinis Günther, 1877

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Synaphobranchus affinis Günther, 1877:445 (type locality: Japan). Shen et al., 1993:110; Chen & Mok, 2001:79; Shao et al., 2008:238.

Remarks. There are many specimens deposited in the ASIZP collection. However, there are taxonomic problems remaining, and this group needs further study.