| Species | Name Used |
|---|---|
| Aplidium glabrum (Verrill, 1871) | Aplidium glabrum (p. 2 ) |
| Haplostomella borealis Marchenkov & Boxshall, 2003 | Haplostomella borealis (p. 2 ) |
| Haplostomella distincta Ooishi & Illg, 1977 | Haplostomella distincta (p. 6 ) |
| Haplostomides sanamyani Marchenkov & Boxshall, 2003 | Haplostomides sanamyani (p. 10 ) |
| Synoicum pulmonaria (Ellis & Solander, 1786) | Synoicum pulmonaria (p. 2 ) |