Family Congridae

In the last volume (Ho et al., 2015b, c), we presented 16 genera and 30 species from Taiwan. One of them, Bathyuroconger vicinus, is described as a new species in this volume. In this volume we add 9 new species and 5 new records, which brings the total number of species to 17 genera and 45 species. Furthermore, several undescribed species in Uroconger will be dealt with in future work. A DNA barcoding approach (Smith, unpub. data) shows that there are at least five monophyletic clades present in what is currently recognized as Uroconger lepturus in Taiwan. However, with only a few available diagnostic characters, we hesitate to describe any of them as new at present.